CN111286226B - High-strength anti-cracking type external wall elastic putty powder additive master batch and preparation method thereof - Google Patents
High-strength anti-cracking type external wall elastic putty powder additive master batch and preparation method thereof Download PDFInfo
- Publication number
- CN111286226B CN111286226B CN202010299988.1A CN202010299988A CN111286226B CN 111286226 B CN111286226 B CN 111286226B CN 202010299988 A CN202010299988 A CN 202010299988A CN 111286226 B CN111286226 B CN 111286226B
- Authority
- CN
- China
- Prior art keywords
- parts
- palm
- master batch
- putty powder
- drying
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/34—Filling pastes
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D10/00—Physical treatment of artificial filaments or the like during manufacture, i.e. during a continuous production process before the filaments have been collected
- D01D10/06—Washing or drying
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06C—FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
- D06C7/00—Heating or cooling textile fabrics
- D06C7/02—Setting
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Abstract
The invention relates to the technical field of building materials, and particularly discloses a high-strength anti-cracking type external wall elastic putty powder additive master batch which is prepared from the following raw materials in parts by weight: 1.5-2.5 parts of palm silk, 25-40 parts of redispersible latex powder, 3-5 parts of hydroxypropyl methyl cellulose, 0.3-0.6 part of starch ether, 1.5-2.5 parts of polypropylene short fiber, 0.8-1.2 parts of hydrophobic agent and 0.3-0.6 part of water reducing agent. Meanwhile, the invention also discloses a preparation method of the high-strength anti-cracking type external wall elastic putty powder additive master batch, and the putty powder additive master batch is applied to putty powder, so that the anti-cracking property of a wall surface coating is obviously improved when an external wall is painted, and the binding force between the putty coating and a wall surface base layer is stronger and the putty coating is not easy to fall off.
Description
Technical Field
The invention relates to the technical field of building materials, in particular to a high-strength anti-cracking type external wall elastic putty powder additive master batch and a preparation method thereof.
Background
The putty powder is one kind of building decoration material, is one kind of base material for wall repairing and leveling, and lays a good foundation for the next step of decoration. The wall putty is divided into an inner wall and an outer wall according to the application, and the outer wall putty is resistant to wind, wind and sunlight, so the wall putty has high adhesiveness, high strength and slightly low environmental protection index. The interior wall putty has better comprehensive index, is healthy and environment-friendly, so the interior wall putty is not externally used and the exterior wall putty is not internally used.
The conventional putty is composed of gypsum or cement base, so that the surface roughness is easy to bond firmly. However, during construction, a layer of interface agent is coated on the base layer to seal the base layer and improve the adhesion of the wall surface, so that the putty can be better bonded on the base surface. The crack resistance is an evaluation index of a wall putty coating, the material is required to have certain elasticity or plasticity, when a wall surface base layer generates microcracks, the putty coating generates elastic or plastic deformation under the action of external force so that cracks do not occur on the surface, the main components of the existing putty powder are heavy calcium carbonate (or talcum powder), ash calcium and the like, but the crack resistance of the putty coating is not ideal when the putty powder is applied due to the problems of the formula, the dosage of adhesives such as cement, rubber powder and the like is generally increased in order to enhance the crack resistance of the putty in the prior art, but the effect is not substantially improved. Meanwhile, most of the putty powder in the existing market contains harmful components such as benzene, toluene, acetone, alcohols and the like, and even if the content of the putty powder in a small number of high-grade putty powder products is only slightly lower than the national standard (or deodorant is added), the putty powder is not beneficial to health and is not environment-friendly; the putty powder can be well combined with an inorganic building wall substrate through an intermediate medium (such as an interface agent), and a formed putty coating has the defects of easy aging and shedding, poor weather resistance, no fire prevention and water resistance, low cost performance and the like.
The putty powder comprises a base material (consumables with large proportion such as quartz sand, cement and the like) and a putty powder additive or a putty powder additive master batch (consumables for improving the bonding performance of the base material such as starch ether and polypropylene short fibers and the like), and when the putty powder additive master batch is used, the putty powder additive master batch is uniformly mixed with the base material and water according to a certain proportion. Therefore, in order to overcome the defects of the existing putty coating, the development of the addition master batch or putty powder of the high-strength anti-cracking elastic putty powder for the outer wall has practical significance.
Disclosure of Invention
In view of the above, the invention aims to provide a high-strength anti-cracking type external wall elastic putty powder additive master batch, which is applied to putty powder, so that the anti-cracking property of a wall surface coating is obviously improved when an external wall is painted, and the binding force between the putty coating and a wall surface base layer is stronger and the putty coating is not easy to fall off.
To achieve the above object, one aspect of the present invention provides: a high-strength anti-cracking type exterior wall elastic putty powder additive master batch is composed of the following raw materials in parts by weight: 1.5-2.5 parts of palm silk, 25-40 parts of redispersible latex powder, 3-5 parts of hydroxypropyl methyl cellulose, 0.3-0.6 part of starch ether, 1.5-2.5 parts of polypropylene short fiber, 0.8-1.2 parts of hydrophobic agent and 0.3-0.6 part of water reducing agent.
Further, the feed additive comprises the following raw materials in parts by weight: 2 parts of palm silk, 30 parts of redispersible latex powder, 4 parts of hydroxypropyl methyl cellulose, 0.5 part of starch ether, 2 parts of polypropylene short fiber, 1 part of hydrophobic agent and 0.5 part of water reducing agent.
Further, the palm silk is processed by deoiling and bleaching, is made into a continuous wave shape or a zigzag shape, and has a length of 20-40 mm.
Further, the starch ether is hydroxypropyl starch ether.
Further, the water reducing agent is a melamine water reducing agent.
Further, the hydrophobizing agent is an organosilicon hydrophobizing agent.
The invention also provides a preparation method of the high-strength anti-cracking type external wall elastic putty powder additive master batch, which comprises the following steps:
s1: deoiling treatment of palm silk
The method comprises the following two steps: a. putting the dried palm fibers into a reaction tank containing an acidic organic solvent with the pH value of 3-4, soaking at the reaction temperature of 70-90 ℃ for 15-20 min, continuously introducing oxygen into the reaction tank, stirring at a constant speed, and taking out and cleaning, wherein the oxygen pressure is 0.1-0.2 MPa; b. b, putting the palm fibers treated by the step a into a dissolving pool containing an alkaline organic solvent with the pH value of 10-12, soaking at the reaction temperature of 90-110 ℃ for 40-60 min, and then fishing out and cleaning for later use;
s2: bleaching the palm fibers:
the method comprises the following two steps: a. carrying out chlorine bleaching on the palm fibers treated by S1 at the reaction temperature of 50-60 ℃ for 40-60 min, and fishing out and cleaning; b. carrying out oxygen bleaching on the palm filaments subjected to chlorine bleaching at the reaction temperature of 70-80 ℃ for 60-80 min, and fishing out and cleaning for later use;
s3: cutting the palm fibers:
drying the palm filaments treated by the S2, and cutting the palm filaments into sections with the length of 20-40 mm for later use;
s4: preparing a putty powder addition master batch:
the palm fibers processed by the S3 are uniformly mixed with the following raw materials in parts by weight: 1.5-2.5 parts of palm silk, 25-40 parts of redispersible latex powder, 3-5 parts of hydroxypropyl methyl cellulose, 0.3-0.6 part of starch ether, 1.5-2.5 parts of polypropylene short fiber, 0.8-1.2 parts of hydrophobic agent and 0.3-0.6 part of water reducing agent.
Further, the acidic organic solvent in S1 is one or more of pentane, hexane and octane, and hydrochloric acid or sulfuric acid with a concentration of 0.1-0.14 mol/L is used for adjusting acidity in the organic solvent in step a.
Further, in the organic solvent in the step b in the step S1, caustic soda with the concentration of 1.5-2 mol/L is used for adjusting alkalinity.
Further, in S2, sodium hypochlorite solution with the concentration of 4-6g/L is adopted for chlorine bleaching, and hydrogen peroxide solution with the concentration of 5-7g/L is adopted for oxygen bleaching.
Further, the palm filaments in the S3 are shaped and dried to form continuous waves or saw-teeth shapes, and then are cut off.
In a further aspect, the present invention provides a palm fibre sizing and drying apparatus for processing palm fibre into a continuous wave shape or zigzag shape, comprising: the conveying surfaces of the first conveying belt and the second conveying belt are uniformly distributed with bulges at intervals along the feeding direction; a continuous and tight contact shaping section is arranged between the feeding surfaces of the first conveyor belt and the second conveyor belt, and when the materials pass through the shaping section, the bulges on the feeding surface of the first conveyor belt and the bulges on the feeding surface of the second conveyor belt are in staggered fit and tight contact, so that the materials form a continuous wave shape or a sawtooth shape after passing through the shaping section;
a soaking zone, a drying zone and a quenching zone are sequentially arranged on the shaping section along the direction from the feeding end to the discharging end;
the shaping section positioned in the soaking zone passes below the liquid level in the liquid containing tank, and the liquid containing tank is filled with a softening agent at the temperature of 60-80 ℃;
the shaping section positioned in the drying zone penetrates through a drying furnace, and circulating hot air is supplied to the inside of the drying furnace;
the shaping section located in the quenching zone penetrates through a quenching furnace, and circulating cold air is supplied into the quenching furnace.
Furthermore, air inlets are uniformly distributed in the lower part of the drying furnace, air outlets are arranged in the upper part of the drying furnace, and the air inlets are communicated with a hot air source pipeline through a high-temperature resistant fan; and the air outlet forms a loop with the drying furnace through the heat exchanger.
Further, the softener is water.
When the putty powder additive master batch is used, the putty powder additive master batch is mixed with other base materials such as quartz sand and cement, and then mixed with water to form paste.
The function of the components and the raw materials in the putty coating is as follows:
palm fiber: the palm fibers (or palm fibers) are longitudinally provided with continuous natural S-shaped or Z-shaped grooves, each fiber is only provided with one-direction natural grooves, the natural grooves are formed by associating a plurality of palm single fibers to form a fiber bundle, the surface of the fiber bundle is not smooth and is completely covered by similar scales, more holes are formed, a larger guide pipe is arranged at a position close to the center, the single fibers are independent, and although the single fibers are arranged tightly, a large number of gaps are formed; the material has the characteristics of difficult chemical corrosion, excellent elasticity and toughness, difficult fracture, porous structure and the like, and has excellent potential as an engineering mechanical material.
Redispersible latex: the powder can be quickly redispersed into emulsion after contacting with water, and the redispersible emulsion powder has high binding capacity and unique properties, such as: good impermeability, good construction property, heat insulation property and the like, and is widely applied to putty powder.
Hydroxypropyl methylcellulose (HPMC): the thickening effect can be achieved, the suspension effect can be achieved, the solution can be kept uniform, and the sagging resistance effect can be achieved; the drying speed of the putty coating is slowed down, cracking caused by too fast drying is prevented, and the cellulose also has a lubricating effect, so that the putty coating has good construction performance.
Starch ether: the workability and thixotropy of the putty coating are improved, so that the operation is smooth; when the putty coating is mixed with hydroxypropyl methyl cellulose, the two components are synergistic, so that the sagging resistance and the slip resistance of the putty coating can be obviously improved, and the putty coating has a high yield value; and the consistency of the putty coating is obviously increased, the flowing property is improved, the construction is smoother, the scraping is smoother, the water retention of the putty can be increased, and the opening time is prolonged.
Polypropylene short fiber: can well improve the crack resistance, the impermeability, the abrasion resistance and the freezing resistance of the putty coating and improve the workability of the putty coating.
A water repellent agent: a layer of special anti-permeability structure is formed on the coating, so that a coating film of the coating has strong hydrophobic, hydrophobic and waterproof effects, the covering rate is improved, the anti-contamination effect is achieved, and the service life of the coating can be ensured.
Water reducing agent: improve the workability of the putty coating.
Compared with the prior art, the invention has the beneficial effects that: the putty powder additive master batch is applied to putty powder, so that the anti-cracking property of a wall surface coating is obviously improved when an outer wall is painted, and the putty coating has stronger binding force with a wall surface base layer and is not easy to fall off.
1. Compared with single linear fiber or silk, the continuous wavy or zigzag palm silk can be interwoven with other raw materials to form an intricate and complex connection state when being mixed with other raw materials, and adjacent palm silk is not easy to separate, so that the putty coating has better combination property, can effectively prevent cracking and falling, improves the micro elastic deformation state of the dried wall putty coating, plays a certain role in buffering, and forms an elastic putty coating with excellent comprehensive performance.
2. In the deoiling treatment of the palm silk, firstly, the palm silk is soaked in a strong acid solvent, so that pigments on the surface of the silk can be effectively removed, such as part of pectin, wax, lignin and the like are dissolved, and the step is carried out in a micro-pressure oxygen environment, so that the oxidation of the surface layer of the palm silk is accelerated, the surface layer is decomposed in a short time, the tough grease layer on the surface layer can be conveniently and thoroughly removed, and the interior of the silk is not damaged by oxidation; then, in an alkaline solvent, secondary impurity removal is carried out, so that pectin, wax, lignin, hemicellulose and the like on the surface are dissolved more thoroughly, and fiber tissues are bulked.
3. In the bleaching treatment, chlorine bleaching is firstly carried out, and the key point is to remove lignin in inner-layer fibers, so that the palm fibers are more white, cleaner and softer; then oxygen bleaching is carried out, so that the molecular structure is bulkier, and residual bonded impurities inside are completely separated from the fibers; in the two bleaching processes, the transparency of the palm fiber is improved and the strength and the toughness of the palm fiber are ensured on the premise of not damaging the original structural tissue of the palm fiber.
Drawings
In order to more clearly illustrate the technical effects of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings related to the present invention in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to different embodiments without inventive labor.
Fig. 1 is a schematic front view of a drying and cutting apparatus according to an embodiment of the present invention.
FIG. 2 is an enlarged view of a portion A of FIG. 1 according to the present invention.
FIG. 3 is a schematic top view of the conveyor belt of FIG. 2 according to the present invention.
FIG. 4 is a schematic cross-sectional view of the cross-sectional view B-B shown in FIG. 1 according to the present invention.
FIG. 5 is a schematic cross-sectional view of the structure of FIG. 1 taken along line C-C according to the present invention.
The text labels in the figures are represented as: 1. a first conveyor belt; 2. a second conveyor belt; 3. a protrusion; 4. a liquid containing groove; 41. a vibrating plate; 42. a vibration motor; 43. a material smashing rod; 5. a drying oven; 51. an air inlet; 52. an air outlet; 53. a high temperature resistant fan; 54. a heat exchanger; 6. quenching the furnace; 7. palm silk ribbon.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, specific embodiments thereof are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, but rather should be construed as broadly as the present invention is capable of modification in various respects, all without departing from the spirit and scope of the present invention.
Example one
A high-strength anti-cracking type exterior wall elastic putty powder additive master batch is composed of the following raw materials in parts by weight: 2 parts of palm silk, 30 parts of redispersible latex powder, 4 parts of hydroxypropyl methyl cellulose, 0.5 part of hydroxypropyl starch ether, 2 parts of polypropylene short fiber, 1 part of organic silicon hydrophobic agent and 0.5 part of melamine water reducing agent.
The preparation method of the high-strength anti-cracking type external wall elastic putty powder additive master batch comprises the following steps:
s1: deoiling treatment of palm silk
The method comprises the following two steps: a. soaking dried palm filaments in a reaction tank containing pentane, adjusting pH to 3.5 with 0.12mol/L sulfuric acid, reacting at 80 deg.C for 18min, continuously introducing oxygen into the reaction tank, stirring at constant speed under oxygen pressure of 0.15MPa, and taking out and cleaning; b. b, putting the palm filaments treated by the step a into a dissolving pool containing hexane for soaking, adjusting the pH to 11 by 1.8mol/L of caustic soda, controlling the reaction temperature to be 100 ℃ and the time to be 50min, and then fishing out and cleaning for later use;
s2: bleaching the palm fibers:
the method comprises the following two steps: a. carrying out chlorine bleaching on the palm filaments treated by the S1, namely putting the palm filaments into a sodium hypochlorite solution with the concentration of 5g/L, carrying out reaction at the temperature of 55 ℃ for 50min, and fishing out and cleaning; b. carrying out oxygen bleaching on the palm filaments subjected to chlorine bleaching, namely putting the palm filaments into 6g/L hydrogen peroxide solution, carrying out reaction at 75 ℃ for 70min, and fishing out and cleaning for later use;
s3: cutting the palm fibers:
drying the palm filaments treated by the S2, and cutting into sections with the length of 30mm for later use;
s4: preparing a putty powder addition master batch:
the palm fibers processed by the S3 are uniformly mixed with the following raw materials in parts by weight: 2kg of palm silk, 30kg of redispersible latex powder, 4kg of hydroxypropyl methyl cellulose, 0.5kg of hydroxypropyl starch ether, 2kg of polypropylene short fiber, 1kg of organic silicon hydrophobic agent and 0.5kg of melamine water reducing agent.
Example two
A high-strength anti-cracking type exterior wall elastic putty powder additive master batch is composed of the following raw materials in parts by weight: 1.5 parts of palm silk, 25 parts of redispersible latex powder, 3 parts of hydroxypropyl methyl cellulose, 0.3 part of hydroxypropyl starch ether, 1.5 parts of polypropylene short fiber, 0.8 part of organic silicon hydrophobic agent and 0.3 part of melamine water reducing agent.
The preparation method of the high-strength anti-cracking type external wall elastic putty powder additive master batch comprises the following steps:
s1: deoiling treatment of palm silk
The method comprises the following two steps: a. soaking dried palm filaments in a reaction tank containing pentane, adjusting pH to 3.5 with 0.12mol/L sulfuric acid, reacting at 80 deg.C for 18min, continuously introducing oxygen into the reaction tank, stirring at constant speed under oxygen pressure of 0.15MPa, and taking out and cleaning; b. b, putting the palm filaments treated by the step a into a dissolving pool containing hexane for soaking, adjusting the pH to 11 by 1.8mol/L of caustic soda, controlling the reaction temperature to be 100 ℃ and the time to be 50min, and then fishing out and cleaning for later use;
s2: bleaching the palm fibers:
the method comprises the following two steps: a. carrying out chlorine bleaching on the palm filaments treated by the S1, namely putting the palm filaments into a sodium hypochlorite solution with the concentration of 5g/L, carrying out reaction at the temperature of 55 ℃ for 50min, and fishing out and cleaning; b. carrying out oxygen bleaching on the palm filaments subjected to chlorine bleaching, namely putting the palm filaments into 6g/L hydrogen peroxide solution, carrying out reaction at 75 ℃ for 70min, and fishing out and cleaning for later use;
s3: cutting the palm fibers:
drying the palm filaments treated by the S2, and cutting into sections with the length of 30mm for later use;
s4: preparing a putty powder addition master batch:
the palm fibers processed by the S3 are uniformly mixed with the following raw materials in parts by weight: 2kg of palm silk, 30kg of redispersible latex powder, 4kg of hydroxypropyl methyl cellulose, 0.5kg of hydroxypropyl starch ether, 2kg of polypropylene short fiber, 1kg of organic silicon hydrophobic agent and 0.5kg of melamine water reducing agent.
EXAMPLE III
A high-strength anti-cracking type exterior wall elastic putty powder additive master batch is composed of the following raw materials in parts by weight: 2.5 parts of palm silk, 40 parts of redispersible latex powder, 5 parts of hydroxypropyl methyl cellulose, 0.6 part of hydroxypropyl starch ether, 2.5 parts of polypropylene short fiber, 1.2 parts of organic silicon hydrophobic agent and 0.6 part of melamine water reducing agent.
The preparation method of the high-strength anti-cracking type external wall elastic putty powder additive master batch comprises the following steps:
s1: deoiling treatment of palm silk
The method comprises the following two steps: a. soaking dried palm filaments in a reaction tank containing pentane, adjusting pH to 3.5 with 0.12mol/L sulfuric acid, reacting at 80 deg.C for 18min, continuously introducing oxygen into the reaction tank, stirring at constant speed under oxygen pressure of 0.15MPa, and taking out and cleaning; b. b, putting the palm filaments treated by the step a into a dissolving pool containing hexane for soaking, adjusting the pH to 11 by 1.8mol/L of caustic soda, controlling the reaction temperature to be 100 ℃ and the time to be 50min, and then fishing out and cleaning for later use;
s2: bleaching the palm fibers:
the method comprises the following two steps: a. carrying out chlorine bleaching on the palm filaments treated by the S1, namely putting the palm filaments into a sodium hypochlorite solution with the concentration of 5g/L, carrying out reaction at the temperature of 55 ℃ for 50min, and fishing out and cleaning; b. carrying out oxygen bleaching on the palm filaments subjected to chlorine bleaching, namely putting the palm filaments into 6g/L hydrogen peroxide solution, carrying out reaction at 75 ℃ for 70min, and fishing out and cleaning for later use;
s3: cutting the palm fibers:
drying the palm filaments treated by the S2, and cutting into sections with the length of 30mm for later use;
s4: preparing a putty powder addition master batch:
the palm fibers processed by the S3 are uniformly mixed with the following raw materials in parts by weight: 2.5kg of palm silk, 40kg of redispersible latex powder, 5kg of hydroxypropyl methyl cellulose, 0.6kg of hydroxypropyl starch ether, 2.5kg of polypropylene short fiber, 1.2kg of organic silicon hydrophobic agent and 0.6kg of melamine water reducing agent.
Example four
A high-strength anti-cracking type exterior wall elastic putty powder additive master batch is composed of the following raw materials in parts by weight: 2 parts of palm silk, 30 parts of redispersible latex powder, 4 parts of hydroxypropyl methyl cellulose, 0.5 part of hydroxypropyl starch ether, 2 parts of polypropylene short fiber, 1 part of organic silicon hydrophobic agent and 0.5 part of melamine water reducing agent.
The preparation method of the high-strength anti-cracking type external wall elastic putty powder additive master batch comprises the following steps:
s1: deoiling treatment of palm silk
The method comprises the following two steps: a. soaking dried palm filaments in a reaction tank containing hexane, adjusting pH to 3 with 0.14mol/L hydrochloric acid at 70 deg.C for 15min, introducing oxygen continuously into the reaction tank, stirring at 0.2MPa, taking out, and cleaning; b. b, putting the palm filaments treated by the step a into a dissolving pool containing hexane for soaking, adjusting the pH to 12 by 2mol/L of caustic soda, controlling the reaction temperature to be 90 ℃ and the time to be 40min, and then fishing out and cleaning for later use;
s2: bleaching the palm fibers:
the method comprises the following two steps: a. carrying out chlorine bleaching on the palm filaments treated by the S1, namely putting the palm filaments into a sodium hypochlorite solution with the concentration of 4g/L, carrying out reaction at the temperature of 60 ℃ for 60min, and fishing out and cleaning; b. carrying out oxygen bleaching on the palm filaments subjected to chlorine bleaching, namely putting the palm filaments into 5g/L hydrogen peroxide solution, reacting at the temperature of 80 ℃ for 80min, and fishing out and cleaning for later use;
s3: cutting the palm fibers:
drying the palm filaments treated by the S2, and cutting into sections with the length of 40mm for later use;
s4: preparing a putty powder addition master batch:
the palm fibers processed by the S3 are uniformly mixed with the following raw materials in parts by weight: 2kg of palm silk, 30kg of redispersible latex powder, 4kg of hydroxypropyl methyl cellulose, 0.5kg of hydroxypropyl starch ether, 2kg of polypropylene short fiber, 1kg of organic silicon hydrophobic agent and 0.5kg of melamine water reducing agent.
EXAMPLE five
A high-strength anti-cracking type exterior wall elastic putty powder additive master batch is composed of the following raw materials in parts by weight: 2 parts of palm silk, 30 parts of redispersible latex powder, 4 parts of hydroxypropyl methyl cellulose, 0.5 part of hydroxypropyl starch ether, 2 parts of polypropylene short fiber, 1 part of organic silicon hydrophobic agent and 0.5 part of melamine water reducing agent.
The preparation method of the high-strength anti-cracking type external wall elastic putty powder additive master batch comprises the following steps:
s1: deoiling treatment of palm silk
The method comprises the following two steps: a. soaking dried palm filaments in a reaction tank containing hexane, adjusting pH to 4 with 0.1mol/L hydrochloric acid at 90 deg.C for 20min, introducing oxygen continuously into the reaction tank, stirring at 0.1MPa, and cleaning; b. b, putting the palm fibers treated by the step a into a dissolving tank containing octane for soaking, adjusting the pH to 10 by 0.15mol/L of caustic soda, reacting at the temperature of 110 ℃ for 60min, and then fishing out and cleaning for later use;
s2: bleaching the palm fibers:
the method comprises the following two steps: a. carrying out chlorine bleaching on the palm filaments treated by the S1, namely putting the palm filaments into a sodium hypochlorite solution with the concentration of 6g/L, carrying out reaction at 50 ℃ for 40min, and fishing out and cleaning; b. carrying out oxygen bleaching on the palm filaments subjected to chlorine bleaching, namely putting the palm filaments into a hydrogen peroxide solution of 7g/L, reacting at the temperature of 70 ℃ for 60min, and fishing out and cleaning for later use;
s3: cutting the palm fibers:
drying the palm filaments treated by the S2, and cutting into 20 mm-length sections for later use;
s4: preparing a putty powder addition master batch:
the palm fibers processed by the S3 are uniformly mixed with the following raw materials in parts by weight: 2kg of palm silk, 30kg of redispersible latex powder, 4kg of hydroxypropyl methyl cellulose, 0.5kg of hydroxypropyl starch ether, 2kg of polypropylene short fiber, 1kg of organic silicon hydrophobic agent and 0.5kg of melamine water reducing agent.
EXAMPLE six
The raw material component content and the preparation method are the same as those of the first embodiment, only the palm fibers are made into continuous wave shapes and zigzag shapes, and the palm fibers are cut into sections with unequal lengths of 20mm, 30mm and 40 mm.
EXAMPLE seven
Removing the palm fibers in the first embodiment, namely: 30 parts of redispersible latex powder, 4 parts of hydroxypropyl methyl cellulose, 0.5 part of hydroxypropyl starch ether, 2 parts of polypropylene short fiber, 1 part of organosilicon hydrophobic agent and 0.5 part of melamine water reducing agent.
The preparation method of the putty powder additive master batch comprises the following steps: the preparation method comprises the following steps of weighing the following raw materials by weight, and uniformly mixing the raw materials: 30kg of redispersible latex powder, 4kg of hydroxypropyl methyl cellulose, 0.5kg of hydroxypropyl starch ether, 2kg of polypropylene short fiber, 1kg of organic silicon hydrophobic agent and 0.5kg of melamine water reducing agent.
Example eight
In a sixth embodiment, a palm fiber sizing and drying apparatus for processing palm fibers into a continuous wave shape or zigzag shape is provided, referring to fig. 1 to 5, which comprises: the conveying device comprises a rack, a first conveying belt 1 and a second conveying belt 2 which are synchronously driven, wherein the first conveying belt 1 and the second conveying belt 2 are arranged on the rack and form loop circulation through conveying rollers respectively, speed reducers which drive the first conveying belt 1 and the second conveying belt 2 to drive respectively are also arranged on the rack, and the feeding speeds of the first conveying belt 1 and the second conveying belt 2 are the same; the feeding surfaces of the first conveyor belt 1 and the second conveyor belt 2 are uniformly distributed with bulges 3 at intervals along the feeding direction, the cross sections of the bulges 3 can be triangular, rectangular, hump-shaped and the like, and are preferably hump-shaped, so that continuous waves are formed at the later stage; a continuous and tight contact shaping section is arranged between the feeding surfaces of the first conveyor belt 1 and the second conveyor belt 2 and is used for pressing the carded continuous palm fiber belts, when the palm fiber belts pass through the shaping section, the bulges 3 on the feeding surface of the first conveyor belt 1 and the bulges 3 on the feeding surface of the second conveyor belt 2 are in staggered fit and tight contact, and the cross sections of the bulges 3 are wave crests or triangles, so that the materials form a continuous wave shape or a sawtooth shape after passing through the shaping section;
the shaping section is sequentially provided with a soaking zone I, a drying zone II and a quenching zone III along the direction from a feeding end to a discharging end;
the shaping section positioned in the soaking area I passes below the liquid level in the liquid containing tank 4, a softening agent is contained in the liquid containing tank 4, and the temperature of the softening agent is 60-80 ℃;
further, a vibration plate 41 is arranged above the soaking area I (the vibration plate 41 is connected with the frame through a vibration reduction spring), a vibration motor 42 is arranged at the upper end of the vibration plate 41, and a material smashing rod 43 in contact with the second conveyor belt 2 is arranged at the lower end of the vibration plate. When the vibration motor 42 works, the smashing rod 43 is driven by vibration to vibrate and knock the second conveying belt 2 in conveying, so that the softening agent in the liquid containing groove 4 is better in full contact with the palm fibers, a better softening effect is obtained, and meanwhile, the performance of the palm fibers can be improved through knocking.
The shaping section positioned in the drying area II penetrates through the drying furnace 5, circulating hot air is supplied to the drying furnace 5, preferably, air inlets 51 are uniformly distributed at the lower part in the drying furnace 5, air outlets 52 are arranged at the upper part in the drying furnace, the air inlets 51 are communicated with a hot air source pipeline through a high temperature resistant fan 53, namely, the hot air source can supply hot air for a gas furnace, the hot air is uniformly distributed to the air inlets 51 under the suction effect of the high temperature resistant fan 53 and after passing through a plurality of branch pipes, so that heat is uniformly supplied to a conveyor belt passing through the drying area II, and correspondingly, an overfire through hole is formed between two protrusions 3 on the conveyor belt, so that the palm fibers are rapidly dried on one hand, and shaped on the; the air outlet 52 forms a loop with the drying oven 5 through the heat exchanger 54, that is, the heat exchanger 54 recovers the exhausted waste heat, heats the waste heat again and supplies heat to the drying oven 5, thereby reducing energy consumption, and it is noted that the heat exchanger 54 and the outlet of the hot air source are provided with a one-way valve for preventing backflow;
the shaping section located in the quenching area III penetrates through the quenching furnace 6, circulating cold air is supplied to the quenching furnace 6, namely air inlet pipes are uniformly distributed below the quenching furnace 6, a large amount of cold air is blown into the quenching furnace 6 through an air blower, so that the heated palm fibers are rapidly shaped, meanwhile, the quenching performance is improved, and the comprehensive performance is improved.
Specifically, when the shaping and drying equipment is used, firstly, the bleached, drained, air-dried or dried palm fibers are sequentially formed into a continuous belt shape (namely a palm fiber belt) through a carding mechanism, the working mode of the continuous belt shape is the same as that of a carding machine, the palm fiber belt is pressed when passing through a first conveyor belt 1 and a second conveyor belt 2, at the moment, bulges 3 on the first conveyor belt 1 and the second conveyor belt 2 are pressed in a staggered and matched mode, a continuous waveform or a zigzag shape is preformed, when the palm fiber belt sequentially passes through a soaking area I, the palm fiber belt is soaked and softened by water, the temperature in the water is 70 ℃, the soaking time is not less than 20min, then the palm fiber belt passes through a drying area II, the palm fiber belt is shaped and dried by circulating hot air in a furnace, the drying temperature is higher than 70 ℃, the moisture content after drying is lower than 4%, and then passes through a quenching area III, the palm fiber belt is rapidly, then, the discharged material is cut off through a cutting device, for example, a cutter capable of moving vertically is arranged, the telescopic mechanism such as a cylinder and an oil cylinder (as long as a mechanism capable of moving the cutter up and down can be realized, the telescopic mechanism is not limited to the two mechanisms) drives the cutter to move up and down in a reciprocating manner to cut the palm fiber into 20-40 mm long sections, and each section at least comprises a wave crest and a wave trough, namely S-shaped or zigzag, so that the mutual hooking effect can be realized; it is noted that the S-shaped or saw-toothed palm fibres must be shredded before being mixed with the ingredients to ensure that they are evenly dispersed in the other ingredients.
The external wall putty powder additive master batch prepared according to the first to the seventh embodiments is respectively mixed with quartz sand and cement according to the following proportion: cement mortar: and (3) adding a putty powder master batch which is 15: 10: 1, mixing and uniformly stirring, and then mixing with water according to the weight ratio: water 1: 0.26 is mixed into paste and is coated on the outer wall. Through detection, the detected items are according to the requirements of the 'putty for building exterior walls' JG/T157-2009 standard.
Wherein the detection effect is shown in the following table:
it should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts of the present invention. The foregoing is only a preferred embodiment of the present invention, and it should be noted that there are objectively infinite specific structures due to the limited character expressions, and it will be apparent to those skilled in the art that a plurality of modifications, decorations or changes may be made without departing from the principle of the present invention, and the technical features described above may be combined in a suitable manner; such modifications, variations, combinations, or adaptations of the invention using its spirit and scope, as defined by the claims, may be directed to other uses and embodiments.
Claims (4)
1. The high-strength anti-cracking type external wall elastic putty powder additive master batch is characterized by comprising the following raw materials in parts by weight: 1.5-2.5 parts of palm silk, 25-40 parts of redispersible latex powder, 3-5 parts of hydroxypropyl methyl cellulose, 0.3-0.6 part of starch ether, 1.5-2.5 parts of polypropylene short fiber, 0.8-1.2 parts of hydrophobic agent and 0.3-0.6 part of water reducing agent;
the preparation method of the high-strength anti-cracking type external wall elastic putty powder additive master batch comprises the following steps:
s1: deoiling treatment of palm silk
The method comprises the following two steps: a. putting the dried palm fibers into a reaction tank containing an acidic organic solvent with the pH value of 3-4, soaking at the reaction temperature of 70-90 ℃ for 15-20 min, continuously introducing oxygen into the reaction tank, stirring at a constant speed, and taking out and cleaning, wherein the oxygen pressure is 0.1-0.2 MPa; b. b, putting the palm fibers treated by the step a into a dissolving pool containing an alkaline organic solvent with the pH value of 10-12, soaking at the reaction temperature of 90-110 ℃ for 40-60 min, and then fishing out and cleaning for later use;
s2: bleaching the palm fibers:
the method comprises the following two steps: a. carrying out chlorine bleaching on the palm fibers treated by S1 at the reaction temperature of 50-60 ℃ for 40-60 min, and fishing out and cleaning; b. carrying out oxygen bleaching on the palm filaments subjected to chlorine bleaching at the reaction temperature of 70-80 ℃ for 60-80 min, and fishing out and cleaning for later use;
s3: cutting the palm fibers:
drying the palm filaments treated by the S2, and cutting the palm filaments into sections with the length of 20-40 mm for later use;
s4: preparing a putty powder addition master batch:
the palm fibers processed by the S3 are uniformly mixed with the following raw materials in parts by weight: 1.5-2.5 parts of palm silk, 25-40 parts of redispersible latex powder, 3-5 parts of hydroxypropyl methyl cellulose, 0.3-0.6 part of starch ether, 1.5-2.5 parts of polypropylene short fiber, 0.8-1.2 parts of hydrophobic agent and 0.3-0.6 part of water reducing agent;
the acidic organic solvent in S1 is one or more of pentane, hexane and octane, and hydrochloric acid or sulfuric acid with the concentration of 0.1-0.14 mol/L is adopted in the organic solvent in the step a to adjust the acidity;
adjusting alkalinity in the organic solvent in the step b in the S1 by using 1.5-2 mol/L of caustic soda;
in the S2, the chlorine bleaching adopts a sodium hypochlorite solution with the concentration of 4-6g/L, and the oxygen bleaching adopts a hydrogen peroxide solution with the concentration of 5-7 g/L;
and (S3) shaping and drying the palm filaments to form continuous waves or saw-teeth, and then cutting.
2. The high-strength anti-cracking type elastic putty powder additive masterbatch for external walls as claimed in claim 1, which is characterized by comprising the following raw materials in parts by weight: 2 parts of palm silk, 30 parts of redispersible latex powder, 4 parts of hydroxypropyl methyl cellulose, 0.5 part of starch ether, 2 parts of polypropylene short fiber, 1 part of hydrophobic agent and 0.5 part of water reducing agent.
3. The shaping and drying equipment for the palm fibers in the high-strength anti-cracking type external wall elastic putty powder adding master batch according to claim 1 or 2 is used for processing the palm fibers into continuous waves or saw-toothed shapes, and comprises the following components: the conveying device comprises a first conveying belt (1) and a second conveying belt (2) which are synchronously driven, wherein bulges (3) are uniformly distributed on the conveying surfaces of the first conveying belt (1) and the second conveying belt (2) at intervals along the conveying direction; a continuous and tight contact shaping section is arranged between the feeding surfaces of the first conveyor belt (1) and the second conveyor belt (2), and when passing through the shaping section, the bulges (3) on the feeding surface of the first conveyor belt (1) and the bulges (3) on the feeding surface of the second conveyor belt (2) are in staggered fit and tight contact, so that the materials form a continuous wave shape or a sawtooth shape after passing through the shaping section;
the shaping section is sequentially provided with a soaking zone (I), a drying zone (II) and a quenching zone (III) along the direction from a feeding end to a discharging end;
the shaping section positioned in the soaking area (I) passes below the liquid level in the liquid containing tank (4), and a softening agent is contained in the liquid containing tank (4) and is at the temperature of 60-80 ℃;
the shaping section positioned in the drying zone (II) penetrates through the drying furnace (5), and circulating hot air is supplied to the inside of the drying furnace (5);
the shaping section positioned in the quenching area (III) penetrates through the quenching furnace (6), and circulating cold air is supplied in the quenching furnace (6).
4. The sizing and drying equipment according to claim 3, wherein air inlets (51) are uniformly distributed at the lower part in the drying furnace (5), air outlets (52) are arranged at the upper part, and the air inlets (51) are communicated with a hot air source pipeline through a high-temperature resistant fan (53); the air outlet (52) forms a loop with the drying oven (5) through the heat exchanger (54).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010299988.1A CN111286226B (en) | 2020-04-16 | 2020-04-16 | High-strength anti-cracking type external wall elastic putty powder additive master batch and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010299988.1A CN111286226B (en) | 2020-04-16 | 2020-04-16 | High-strength anti-cracking type external wall elastic putty powder additive master batch and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111286226A CN111286226A (en) | 2020-06-16 |
| CN111286226B true CN111286226B (en) | 2021-06-08 |
Family
ID=71029577
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010299988.1A Active CN111286226B (en) | 2020-04-16 | 2020-04-16 | High-strength anti-cracking type external wall elastic putty powder additive master batch and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111286226B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111334113B (en) * | 2020-04-16 | 2021-08-10 | 湖南威邦新材料有限公司 | High-strength anti-cracking elastic putty powder for exterior wall and preparation method thereof |
| CN113563754B (en) * | 2021-08-18 | 2022-08-09 | 陕西顶呱刮建材有限公司 | Wall crack-resistant putty powder and preparation method thereof |
| CN114231076A (en) * | 2021-12-20 | 2022-03-25 | 安徽省松涛装饰材料有限责任公司 | Preparation method of heat-insulating anti-cracking putty powder for external wall |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003091642A1 (en) * | 2002-04-24 | 2003-11-06 | Crane Plastics Company Llc | Colling of extruded and compression molded materials |
| WO2004102092A1 (en) * | 2003-05-07 | 2004-11-25 | Crane Plastics Company Llc | System and method for directing a fluid through a die |
| CN101062859A (en) * | 2007-06-11 | 2007-10-31 | 赵云龙 | Wall heat-insulating rubber powder material and preparation method and using method thereof |
| CN101274826A (en) * | 2008-05-07 | 2008-10-01 | 黄华 | Additive for exterior wall thermal insulation material |
| CN103642296A (en) * | 2013-12-23 | 2014-03-19 | 宜都宜龙特种水泥有限公司 | Novel radiation-proof putty powder |
| KR20140060269A (en) * | 2014-04-14 | 2014-05-19 | (주)알티스페이스 | Laminated Sound Absorbing Material Having Lamination With Sound Absorbing Coating or Sound Absorption Putty, Method of Manufacturing the Same, and Method of Construction |
| CN106916479A (en) * | 2015-12-24 | 2017-07-04 | 张美玲 | A kind of radiation proof putty |
| CN109797922A (en) * | 2019-02-15 | 2019-05-24 | 蔚湃建筑科技(上海)有限公司 | A kind of sand wall texture wall face and its construction method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7017352B2 (en) * | 2001-01-19 | 2006-03-28 | Crane Plastics Company Llc | Cooling of extruded and compression molded materials |
-
2020
- 2020-04-16 CN CN202010299988.1A patent/CN111286226B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003091642A1 (en) * | 2002-04-24 | 2003-11-06 | Crane Plastics Company Llc | Colling of extruded and compression molded materials |
| WO2004102092A1 (en) * | 2003-05-07 | 2004-11-25 | Crane Plastics Company Llc | System and method for directing a fluid through a die |
| CN101062859A (en) * | 2007-06-11 | 2007-10-31 | 赵云龙 | Wall heat-insulating rubber powder material and preparation method and using method thereof |
| CN101274826A (en) * | 2008-05-07 | 2008-10-01 | 黄华 | Additive for exterior wall thermal insulation material |
| CN103642296A (en) * | 2013-12-23 | 2014-03-19 | 宜都宜龙特种水泥有限公司 | Novel radiation-proof putty powder |
| KR20140060269A (en) * | 2014-04-14 | 2014-05-19 | (주)알티스페이스 | Laminated Sound Absorbing Material Having Lamination With Sound Absorbing Coating or Sound Absorption Putty, Method of Manufacturing the Same, and Method of Construction |
| CN106916479A (en) * | 2015-12-24 | 2017-07-04 | 张美玲 | A kind of radiation proof putty |
| CN109797922A (en) * | 2019-02-15 | 2019-05-24 | 蔚湃建筑科技(上海)有限公司 | A kind of sand wall texture wall face and its construction method |
Non-Patent Citations (2)
| Title |
|---|
| Computer-aided design of optimal environmentally benign solvent-based adhesive products;Suela Jonuzaj,etal;《Computers and Chemical Engineering》;20190731;1-13 * |
| 可再分散乳胶粉对建筑外墙腻子的影响研究;李英丁;《四川建材》;20121231;19-20 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111286226A (en) | 2020-06-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111286226B (en) | High-strength anti-cracking type external wall elastic putty powder additive master batch and preparation method thereof | |
| CN100535239C (en) | Manufacturing method for reducing impurities of cellulose fiber for manufacturing fiber reinforced cement composite material | |
| CN102241906B (en) | Multifunctional putty for building external walls | |
| AU2001296904A1 (en) | Method and apparatus for reducing impurities in cellulose fibers for manufacture of fiber reinforced cement composite materials | |
| CN111334113B (en) | High-strength anti-cracking elastic putty powder for exterior wall and preparation method thereof | |
| JPS6028775B2 (en) | Fiber-reinforced cementitious material free of asbestos and glass fibers | |
| WO2009135279A3 (en) | Manufacturing process of fiber-cement composite materials using portland cement reinforced with inorganic fibers chemically modified by organoselanes | |
| CN102179866A (en) | Method for manufacturing environmentally-friendly paper | |
| CN114231013B (en) | Environment-friendly plastic building template material and preparation method thereof | |
| CN111574111A (en) | Light high-strength straw board for interior wall and preparation method and application thereof | |
| CN105155267B (en) | A kind of mineral fibres softening agent | |
| CN102249632A (en) | Heat insulation plastering mortar with waste textile fibers and preparation method thereof | |
| CN105238307A (en) | Soundproof adhesive with high adhesion stress | |
| CN112430057A (en) | Multifunctional biomass composite building material and preparation method thereof | |
| CN109706575A (en) | A kind of yarn carrying asbestos short fibre copy paper | |
| KR100509703B1 (en) | waste-fiber reinforced silicacel complex and production and use thereof | |
| JP2660143B2 (en) | Carbon fiber and cement composite for cement reinforcement | |
| EP1574614B1 (en) | Method for reducing impurities in cellulose fibers for manufacture of fiber reinforced cement composite materials | |
| CN101445512B (en) | Synthesis process of architectural waterproof material methyl sodium silicate | |
| CN107793095B (en) | Energy-saving environment-friendly waterproof construction method | |
| CN107345430A (en) | A kind of composite insulating brick and its production technology | |
| CN108440865A (en) | A kind of high tenacity corrosion resistant plastics-steel shapes for door and window and preparation method thereof | |
| CN107558279A (en) | Waste paper fibrous insulating material and its production method | |
| CN108239357A (en) | A kind of preparation method of EVA modified calcium carbonates toughened system electrical casing pipe | |
| CN107954678A (en) | The production technology of construction material containing fluorine silicone rubber and its application |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |