CN117844069A - Rubber composition and preparation method and application thereof - Google Patents
Rubber composition and preparation method and application thereof Download PDFInfo
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- CN117844069A CN117844069A CN202311872061.2A CN202311872061A CN117844069A CN 117844069 A CN117844069 A CN 117844069A CN 202311872061 A CN202311872061 A CN 202311872061A CN 117844069 A CN117844069 A CN 117844069A
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- 229920001971 elastomer Polymers 0.000 title claims abstract description 155
- 239000005060 rubber Substances 0.000 title claims abstract description 155
- 239000000203 mixture Substances 0.000 title claims abstract description 80
- 238000002360 preparation method Methods 0.000 title abstract description 15
- 239000000463 material Substances 0.000 claims abstract description 73
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims abstract description 36
- 244000043261 Hevea brasiliensis Species 0.000 claims abstract description 27
- 229920003052 natural elastomer Polymers 0.000 claims abstract description 27
- 229920001194 natural rubber Polymers 0.000 claims abstract description 27
- 229920001935 styrene-ethylene-butadiene-styrene Polymers 0.000 claims abstract description 23
- 230000003712 anti-aging effect Effects 0.000 claims abstract description 22
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 22
- 239000003365 glass fiber Substances 0.000 claims abstract description 22
- 239000002270 dispersing agent Substances 0.000 claims abstract description 21
- 239000000945 filler Substances 0.000 claims abstract description 20
- 238000004519 manufacturing process Methods 0.000 claims abstract description 20
- 235000021355 Stearic acid Nutrition 0.000 claims abstract description 18
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims abstract description 18
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims abstract description 18
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000008117 stearic acid Substances 0.000 claims abstract description 18
- 229910052717 sulfur Inorganic materials 0.000 claims abstract description 18
- 239000011593 sulfur Substances 0.000 claims abstract description 18
- 239000011787 zinc oxide Substances 0.000 claims abstract description 18
- 239000005062 Polybutadiene Substances 0.000 claims abstract description 17
- 229920002857 polybutadiene Polymers 0.000 claims abstract description 16
- 239000002994 raw material Substances 0.000 claims abstract description 16
- 239000012744 reinforcing agent Substances 0.000 claims abstract description 14
- 238000002156 mixing Methods 0.000 claims description 22
- NLZUEZXRPGMBCV-UHFFFAOYSA-N Butylhydroxytoluene Chemical compound CC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 NLZUEZXRPGMBCV-UHFFFAOYSA-N 0.000 claims description 16
- FZWLAAWBMGSTSO-UHFFFAOYSA-N Thiazole Chemical compound C1=CSC=N1 FZWLAAWBMGSTSO-UHFFFAOYSA-N 0.000 claims description 14
- 235000010354 butylated hydroxytoluene Nutrition 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 14
- 238000003825 pressing Methods 0.000 claims description 12
- 238000004073 vulcanization Methods 0.000 claims description 10
- 238000007599 discharging Methods 0.000 claims description 9
- -1 polyethylene Polymers 0.000 claims description 9
- QAZLUNIWYYOJPC-UHFFFAOYSA-M sulfenamide Chemical compound [Cl-].COC1=C(C)C=[N+]2C3=NC4=CC=C(OC)C=C4N3SCC2=C1C QAZLUNIWYYOJPC-UHFFFAOYSA-M 0.000 claims description 8
- 239000004698 Polyethylene Substances 0.000 claims description 7
- 229920000573 polyethylene Polymers 0.000 claims description 7
- 238000001816 cooling Methods 0.000 claims description 6
- 239000003963 antioxidant agent Substances 0.000 claims description 5
- 230000003078 antioxidant effect Effects 0.000 claims description 5
- 238000005984 hydrogenation reaction Methods 0.000 claims description 4
- 229920003048 styrene butadiene rubber Polymers 0.000 claims description 4
- 150000001875 compounds Chemical class 0.000 claims description 3
- 101100364280 Oryza sativa subsp. japonica RSS3 gene Proteins 0.000 claims description 2
- 101100478972 Oryza sativa subsp. japonica SUS3 gene Proteins 0.000 claims description 2
- 239000004793 Polystyrene Substances 0.000 claims description 2
- MTAZNLWOLGHBHU-UHFFFAOYSA-N butadiene-styrene rubber Chemical group C=CC=C.C=CC1=CC=CC=C1 MTAZNLWOLGHBHU-UHFFFAOYSA-N 0.000 claims description 2
- 229920002223 polystyrene Polymers 0.000 claims description 2
- 230000008859 change Effects 0.000 abstract description 11
- 229920006247 high-performance elastomer Polymers 0.000 abstract description 9
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 18
- 239000006185 dispersion Substances 0.000 description 18
- 239000011347 resin Substances 0.000 description 10
- 229920005989 resin Polymers 0.000 description 10
- 239000002202 Polyethylene glycol Substances 0.000 description 6
- 229920001223 polyethylene glycol Polymers 0.000 description 6
- 238000005452 bending Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000004088 foaming agent Substances 0.000 description 3
- 238000005498 polishing Methods 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 238000009966 trimming Methods 0.000 description 3
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 description 2
- 239000005063 High cis polybutadiene Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- FACXGONDLDSNOE-UHFFFAOYSA-N buta-1,3-diene;styrene Chemical compound C=CC=C.C=CC1=CC=CC=C1.C=CC1=CC=CC=C1 FACXGONDLDSNOE-UHFFFAOYSA-N 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005187 foaming Methods 0.000 description 2
- 239000010985 leather Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- DOIRQSBPFJWKBE-UHFFFAOYSA-N phthalic acid di-n-butyl ester Natural products CCCCOC(=O)C1=CC=CC=C1C(=O)OCCCC DOIRQSBPFJWKBE-UHFFFAOYSA-N 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 229920000468 styrene butadiene styrene block copolymer Polymers 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 229920013620 Pliolite Polymers 0.000 description 1
- 239000002174 Styrene-butadiene Substances 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 229920001400 block copolymer Polymers 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000003995 emulsifying agent Substances 0.000 description 1
- 238000007720 emulsion polymerization reaction Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 229920005615 natural polymer Polymers 0.000 description 1
- 238000010525 oxidative degradation reaction Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000000575 pesticide Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920001195 polyisoprene Polymers 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 238000011895 specific detection Methods 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 239000005061 synthetic rubber Substances 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L7/00—Compositions of natural rubber
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B13/00—Soles; Sole-and-heel integral units
- A43B13/02—Soles; Sole-and-heel integral units characterised by the material
- A43B13/04—Plastics, rubber or vulcanised fibre
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2296—Oxides; Hydroxides of metals of zinc
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
Abstract
The embodiment of the invention relates to the technical field of shoe material manufacturing, and particularly discloses a rubber composition, a preparation method and application thereof, wherein the rubber composition comprises the following raw materials: natural rubber, SEBS rubber, butadiene rubber, a rubber reinforcing agent, a hollow glass fiber material, zinc oxide, stearic acid, a filler dispersing agent, an anti-aging agent, an accelerator and sulfur. The embodiment of the invention can effectively improve the performance of the rubber composition through reasonable use of various raw materials, has the advantages of processability, light weight, wear resistance, flexibility, later color change and the like, can be used as a sole material to manufacture a high-performance rubber outsole, and solves the problem that the conventional rubber outsole material often cannot ensure the wear resistance while having light weight. Moreover, the preparation method provided by the embodiment of the invention is simple and has wide market prospect.
Description
Technical Field
The embodiment of the invention belongs to the technical field of shoe material manufacturing, and particularly relates to a rubber composition, a preparation method and application thereof.
Background
Along with the continuous improvement of the living standard of people, the requirements of people on shoes are more and more diversified. In the current market, most of common shoes are composed of shoelaces, uppers, midsoles, soles and other components, the sole components not only bear the weight of a human body, but also bear the load increased when the human moves, and transfer deformation torque generated when the human moves. Therefore, the sole material must have high strength, high wear resistance, bending resistance, cold resistance, light specific gravity, no peculiar smell, no frosting, good anti-skid performance, good glossiness, difficult color change and the like.
At present, a sole material is generally adopted to be added with a foaming agent for foaming, so that the weight of the sole is reduced, but the abrasion performance of the sole is often lost by the method. The use of oil softeners may be used to improve the processability and flexibility of the footwear material, but at the same time reduce the strength of the sole material. Moreover, the existing rubber soles are generally aged and hardened in the later period, so that the wearing comfort is reduced.
Therefore, the method of foaming by adding the foaming agent to the sole material in the prior art has the following defects: the existing rubber substrate material often cannot ensure the wear resistance while being light in weight.
Disclosure of Invention
The embodiment of the invention aims to provide a rubber composition to solve the problem that the existing rubber large-base material proposed in the background art is always incapable of ensuring the wear resistance while being light in weight.
In order to achieve the above object, the embodiment of the present invention provides the following technical solutions:
a rubber composition comprises the following raw materials in parts by weight: 55-85 parts of natural rubber, 10-30 parts of SEBS rubber, 5-25 parts of butadiene rubber, 20-40 parts of rubber reinforcing agent, 10-30 parts of hollow glass fiber material, 3-4 parts of zinc oxide, 0.5-2.5 parts of stearic acid, 2-6 parts of filler dispersing agent, 3-5 parts of anti-aging agent, 2-6 parts of accelerator and 1-2 parts of sulfur.
Preferably, the rubber composition comprises the following raw materials in parts by weight: 60-80 parts of natural rubber, 10-20 parts of SEBS rubber, 10-20 parts of butadiene rubber, 20-30 parts of rubber reinforcing agent, 20-30 parts of hollow glass fiber material, 3-4 parts of zinc oxide, 1-2 parts of stearic acid, 3-5 parts of filler dispersing agent, 3-5 parts of anti-aging agent, 3-5 parts of accelerator and 1-2 parts of sulfur.
It is another object of an embodiment of the present invention to provide a method for preparing a rubber composition, comprising the steps of:
1) Putting natural rubber, SEBS rubber and butadiene rubber into a banburying chamber in proportion at the temperature of 90-100 ℃ for bolt pressing and mixing;
2) Then adding a rubber reinforcing agent, a hollow glass fiber material, zinc oxide, stearic acid, a filler dispersing agent and an anti-aging agent into a banburying chamber, pressing and mixing, discharging rubber, and cooling to obtain a section of rubber compound;
3) And stacking a section of mixed rubber on a wrapping roller of an open mill, adding an accelerator and sulfur, uniformly mixing, blanking and vulcanizing to obtain the rubber composition.
It is another object of the embodiments of the present invention to provide a rubber composition prepared by the above-mentioned method for preparing a rubber composition.
It is another object of an embodiment of the present invention to provide an application of the rubber composition in shoe material manufacturing.
Compared with the prior art, the embodiment of the invention has the beneficial effects that:
compared with the prior art, the rubber composition provided by the embodiment of the invention can effectively improve the performance of the rubber composition through reasonably using the raw materials such as natural rubber, SEBS rubber, butadiene rubber, rubber reinforcing agent, hollow glass fiber material, zinc oxide, stearic acid, filler dispersing agent, anti-aging agent, accelerator, sulfur and the like, has the advantages of simultaneously taking into account processability, light weight, wear resistance, flexibility, later color change and the like, has more comprehensive functions, can be used as sole materials to manufacture high-performance rubber soles, and solves the problem that the existing rubber sole materials often cannot ensure wear resistance while taking into account light weight. Moreover, the preparation method provided by the embodiment of the invention is simple, can be used for preparing other types of rubber compositions, and has wide market prospect.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following description will briefly introduce the drawings that are needed in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are only some embodiments of the present invention.
FIG. 1 is a diagram of a rubber outsole according to an embodiment of the present invention.
Detailed Description
In order to make the technical problems, technical schemes and beneficial effects to be solved more clearly apparent, the technical schemes in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention and the accompanying drawings. It will be apparent that the following examples will assist those skilled in the art in further understanding the present invention, but are not intended to limit the present invention in any way. It should be noted that variations and modifications could be made by those skilled in the art without departing from the spirit of the embodiments of the invention. These are all within the scope of embodiments of the present invention.
Specific implementations of the invention are described in detail below in connection with specific embodiments.
First, it should be noted that, in the prior art, the sole material is generally foamed by adding a foaming agent to reduce the weight of the sole, but this method tends to lose the wear performance of the sole. The oil softener is used for improving the processability and softness of the shoe material, but can reduce the strength of the sole material, reduce the glossiness and easily change color. The rubber sole also has the common phenomenon of aging and hardening in the later period, and the wearing comfort is reduced. Therefore, the existing rubber substrate material often cannot simultaneously achieve the advantages of processability, light weight, wear resistance, flexibility, later color change and the like.
In order to solve the above problems, the embodiment of the invention provides a rubber composition, in particular a material which can be used as a sole material to manufacture a high-performance rubber outsole, comprising the following raw materials in parts by weight: 55-85 parts of natural rubber, 10-30 parts of SEBS rubber, 5-25 parts of butadiene rubber, 20-40 parts of rubber reinforcing agent, 10-30 parts of hollow glass fiber material, 3-4 parts of zinc oxide, 0.5-2.5 parts of stearic acid, 2-6 parts of filler dispersing agent, 3-5 parts of anti-aging agent, 2-6 parts of accelerator and 1-2 parts of sulfur.
According to the embodiment of the invention, the natural rubber, SEBS rubber, butadiene rubber, a rubber reinforcing agent, a hollow glass fiber material, zinc oxide, stearic acid, a filler dispersing agent, an anti-aging agent, an accelerator, sulfur and the like are adopted as raw materials, so that the high-performance sole material which is light in weight, high in strength, excellent in durability, light in weight, and not suitable for color change is provided, and the high-performance sole material has the advantages of processability, light in weight, wear resistance, flexibility, late color change and the like, and solves the problem that the existing rubber base material cannot always have the advantages of processability, light in weight, wear resistance, flexibility, late color change and the like.
As a preferred embodiment of the present invention, the rubber composition comprises the following raw materials in parts by weight: 60-80 parts of natural rubber, 10-20 parts of SEBS rubber, 10-20 parts of butadiene rubber, 20-30 parts of rubber reinforcing agent, 20-30 parts of hollow glass fiber material, 3-4 parts of zinc oxide, 1-2 parts of stearic acid, 3-5 parts of filler dispersing agent, 3-5 parts of anti-aging agent, 3-5 parts of accelerator and 1-2 parts of sulfur.
Further preferably, the rubber composition comprises the following raw materials in parts by weight: 70 parts of natural rubber, 20 parts of SEBS rubber, 10 parts of butadiene rubber, 30 parts of rubber reinforcing agent, 20 parts of hollow glass fiber material, 3.5 parts of zinc oxide, 1 part of stearic acid, 3 parts of filler dispersing agent, 4 parts of anti-aging agent, 3 parts of accelerator and 1.2 parts of sulfur.
As a further preferred embodiment of the present invention, the natural rubber is a natural polymer compound containing polyisoprene as a main component, and specifically is any one selected from the group consisting of natural rubber with a brand name of RSS3, natural rubber with a brand name of SVR-3L, and natural rubber with a brand name of SVR-10.
As a further preferred embodiment of the present invention, the butadiene rubber is specifically VCR rubber, and generally, products such as the high cis-polybutadiene composite rubber VCR617 and the high cis-polybutadiene composite rubber VCR412 in the prior art may be adopted, and the products are specifically selected according to needs, and are not limited herein, so long as the bending resistance of the sole material can be improved by adding the VCR rubber to meet certain requirements.
As a further preferred embodiment of the present invention, the rubber reinforcing agent is a styrene-butadiene copolymer, specifically a high styrene reinforcing resin S6H is used as an emulsion polymerization type high styrene content resin, wherein styrene: the butadiene ratio is 75-90:25:10, the preferred ratio is 82.5:17.5. In practical products, the high styrene PLIOLITE S6H, namely the high styrene reinforced resin S6H, can be adopted in the European method of French, is specially developed as the reinforced resin of rubber, has the function of improving the material processing performance, and has multiple functions when being blended with SBR, EVA, NR, BR.
As a further preference of the embodiment of the invention, the SEBS rubber is prepared by selectively hydrogenating a block copolymer SBS (styrene-butadiene-styrene), namely a hydrogenated styrene-butadiene block copolymer, wherein the hydrogenation degree of a polybutadiene block is more than 90 percent and the hydrogenation degree of a polystyrene block is less than 10 percent. In particular, the SEBS rubber products in the prior art can be used.
As a further preferable mode of the embodiment of the invention, the hollow glass fiber material is a high impact-resistant and ultra-light hollow glass fiber material, the particle size is of a micro-nano level, and the hollow glass fiber material is purchased from Jiangsu Ruiba new material technology Co., ltd, and the model is selected from one of LS38, LS42 and LS 46.
As a further preferred embodiment of the present invention, the antioxidant is a mixture of BHT (2, 6-di-tert-butyl-4-methylphenol) and RW159 (polyethylene wax), and the weight ratio of BHT and RW159 is 2-3:1-2.
As a further preferable example of the present invention, the accelerator is selected from any one or more of thiazole accelerators and sulfenamide accelerators.
Further, the accelerator is a mixture of M-80 (thiazole accelerator pre-dispersion), DM-75 (thiazole accelerator pre-dispersion) and NS-80 (sulfenamide accelerator pre-dispersion) in a weight ratio of 0.8-1.8:1.2-2.2:1.0-2.0.
As a further preferred embodiment of the present invention, the filler dispersant is polyethylene glycol (PEG), which is commonly used as a lubricant, coolant in the rubber, metal processing industry, as a dispersant, emulsifier in the pesticide, pigment industry, where by using polyethylene glycol as the filler dispersant,
the embodiment of the invention also provides a preparation method of the rubber composition, which specifically comprises the following steps:
1) Natural rubber, SEBS rubber and butadiene rubber are put into a banburying chamber in proportion at the temperature of 90-100 ℃, the filling factor is 45-55%, and the mixture is pressed and mixed;
2) Adding a rubber reinforcing agent, a hollow glass fiber material, zinc oxide, stearic acid, a filler dispersing agent and an anti-aging agent into a banburying chamber, wherein the filling factor is 75% -85%, pressing a bolt for mixing, discharging rubber, and cooling to obtain a section of mixed rubber;
3) And stacking a section of mixed rubber on a wrapping roller of an open mill, adding an accelerator and sulfur, uniformly mixing, blanking and vulcanizing to obtain the rubber composition.
As a further preferable example of the present invention, in the method for producing a rubber composition, the vulcanization temperature of the vulcanization is 150℃to 160℃and the vulcanization time is 160 seconds to 180 seconds, and the vulcanization pressure is 5MPa to 7MPa.
Preferably, the preparation method of the rubber composition comprises the following steps:
step (1): the initial temperature of the internal mixer is regulated to 90-100 ℃, natural rubber, SEBS rubber and VCR rubber are put into a mixing chamber, the filling factor is 45-55%, and the internal mixer is used for pressing and mixing for 30 seconds;
step (2): adding high styrene reinforced resin, hollow glass fiber material, zinc oxide, stearic acid, filler dispersant and anti-aging agent into a banburying chamber, wherein the filling factor is 75% -85%, pressing and mixing for 50 seconds again by high-position suspension of a lifting bolt, lifting and discharging rubber, and cooling and stacking to obtain a section of mixed rubber;
step (3): stacking a section of mixed rubber on a wrapping roller of an open mill, adding an accelerator and sulfur, uniformly mixing, discharging sheets according to the requirement, and blanking according to the production requirement of soles;
step (4): putting the blanked rubber sheet into a shoe material vulcanizing mold, vulcanizing at 150-160 ℃ for 160-180 seconds and under 5-7 MPa to obtain a rubber composition capable of being used for manufacturing a high-performance rubber outsole, polishing, napping and trimming the rubber composition obtained after vulcanization to obtain the high-performance rubber outsole;
wherein the rubber composition consists of the following components in parts by weight:
the embodiment of the invention also provides the rubber composition prepared by the preparation method of the rubber composition.
The embodiment of the invention also provides an application of the rubber composition in shoe material manufacturing. In particular, it is suitable for use as a rubber composition for making high-performance shoe soles.
Specifically, the shoe material is a shoe making material, mainly comprises a fabric for making leather shoes, auxiliary materials such as leather materials, textiles, rubber, plastics and the like, and also comprises corresponding other auxiliary materials such as zippers, decorative fasteners, tightness and the like, and various midsoles, outsoles, heels and the like.
As a further preferred aspect of the embodiments of the present invention, the above-mentioned rubber composition is particularly suitable for the manufacture of a sole material for shoe materials, including a outsole and a midsole, in the application of the rubber composition in shoe material manufacture, and can be used for manufacturing middle-high-end brand sport soles.
The technical effects of the rubber composition of the present invention will be further described below by way of specific examples.
Example 1
The rubber composition comprises the following raw materials in parts by weight:
wherein the anti-aging agent is a mixture of BHT (2, 6-di-tert-butyl-4-methylphenol) and RW159 (polyethylene wax), and the weight ratio is 2:1. the accelerator is a mixture of M-80 (thiazole accelerator pre-dispersion), DM-75 (thiazole accelerator pre-dispersion) and NS-80 (sulfenamide accelerator pre-dispersion) with the weight ratio of 0.8:1.2:1.0.
in this embodiment, the preparation method of the rubber composition specifically includes the following steps:
(1) The initial temperature of an internal mixer is regulated to 90 ℃, natural rubber, SEBS rubber and VCR rubber are put into an internal mixing chamber, the filling factor is 50%, and the internal mixer is subjected to bolt pressing and mixing for 30 seconds;
(2) Adding high styrene reinforced resin, hollow glass fiber material, zinc oxide, stearic acid, filler dispersant and anti-aging agent into a banburying chamber, wherein the filling factor is 75% -85%, pressing and mixing for 50 seconds again by high-position suspension of a lifting bolt, lifting and discharging rubber, and cooling and stacking to obtain a section of mixed rubber;
(3) Stacking a section of mixed rubber on a wrapping roller of an open mill, adding an accelerator and sulfur, uniformly mixing, discharging sheets according to the requirement, and blanking according to the production requirement of soles;
(4) And (3) placing the blanked rubber sheet into a shoe material vulcanizing mold, vulcanizing at 155 ℃ for 170 seconds under 6MPa to obtain a rubber composition capable of being used for manufacturing the high-performance rubber outsole, polishing, napping and trimming the rubber composition obtained after vulcanization to obtain a high-performance rubber sole qualified product, namely a rubber outsole object.
Example 2
The rubber composition comprises the following raw materials in parts by weight:
wherein the anti-aging agent is a mixture of BHT (2, 6-di-tert-butyl-4-methylphenol) and RW159 (polyethylene wax), and the weight ratio is 2:1. the accelerator is a mixture of M-80 (thiazole accelerator pre-dispersion), DM-75 (thiazole accelerator pre-dispersion) and NS-80 (sulfenamide accelerator pre-dispersion) with the weight ratio of 0.8:1.2:1.0.
in this embodiment, the preparation method of the rubber composition specifically includes the following steps:
(1) The initial temperature of an internal mixer is regulated to 90 ℃, natural rubber, SEBS rubber and VCR rubber are put into an internal mixing chamber, the filling factor is 50%, and the internal mixer is subjected to bolt pressing and mixing for 30 seconds;
(2) Adding high styrene reinforced resin S6H, hollow glass fiber material LS42, zinc oxide, stearic acid ST1801, filler dispersant PEG and anti-aging agent into a banburying chamber, mixing for 50 seconds by pressing a bolt, suspending and mixing for 10 seconds at a high position on the lifting bolt, mixing for 50 seconds by pressing the bolt again, discharging rubber by lifting the bolt, cooling and stacking to obtain a section of mixed rubber;
(3) Stacking a section of mixed rubber on a wrapping roller of an open mill, adding an accelerator and sulfur, uniformly mixing, discharging sheets according to the requirement, and blanking according to the production requirement of soles;
(4) And (3) placing the blanked rubber sheet into a shoe material vulcanizing mold, vulcanizing at 155 ℃ for 170 seconds under 6MPa to obtain a rubber composition capable of being used for manufacturing the high-performance rubber outsole, polishing, napping and trimming the rubber composition obtained after vulcanization to obtain a high-performance rubber sole qualified product, namely a rubber outsole object.
In this embodiment, the obtained rubber outsole real object is photographed, and the obtained rubber outsole real object diagram is shown in fig. 1. Specifically, fig. 1 is a physical diagram of a rubber outsole provided in an embodiment of the invention. As can be seen from FIG. 1, the rubber outsole prepared in this example has a good physical appearance.
Example 3
The rubber composition comprises the following raw materials in parts by weight:
wherein the anti-aging agent is a mixture of BHT (2, 6-di-tert-butyl-4-methylphenol) and RW159 (polyethylene wax), and the weight ratio is 2:1. the accelerator is a mixture of M-80 (thiazole accelerator pre-dispersion), DM-75 (thiazole accelerator pre-dispersion) and NS-80 (sulfenamide accelerator pre-dispersion) with the weight ratio of 0.8:1.2:1.0.
in this embodiment, the preparation method of the rubber composition is referred to embodiment 1, and is not described herein.
Example 4
Compared with example 1, except that the rubber composition comprises the following raw materials in parts by weight: 55 parts of SVR-3L, 10 parts of SEBS rubber, 5 parts of VCR rubber, 20 parts of high-styrene reinforced resin S6H, 10 parts of hollow glass fiber material LS42, 3 parts of zinc oxide, 0.5 part of stearic acid ST1801, 2 parts of filler dispersant PEG, 3 parts of anti-aging agent, 2 parts of accelerator and 1 part of sulfur, and the other parts are the same as in the example 1.
In this embodiment, the preparation method of the rubber composition is referred to embodiment 1, and is not described herein.
Example 5
Compared with example 1, except that the rubber composition comprises the following raw materials in parts by weight: 85 parts of SVR-3L, 30 parts of SEBS rubber, 25 parts of VCR rubber, 40 parts of high-styrene reinforced resin S6H, 30 parts of hollow glass fiber material LS42, 4 parts of zinc oxide, 2.5 parts of stearic acid ST1801, 6 parts of filler dispersant PEG, 5 parts of anti-aging agent, 6 parts of accelerator and 2 parts of sulfur, and the other parts are the same as in the example 1.
In this embodiment, the preparation method of the rubber composition is referred to embodiment 1, and is not described herein.
Example 6
In comparison with example 1, except that the antioxidant was a mixture of BHT (2, 6-di-t-butyl-4-methylphenol) and RW159 (polyethylene wax), the weight ratio was 2:2. the accelerator is a mixture of M-80 (thiazole accelerator pre-dispersion), DM-75 (thiazole accelerator pre-dispersion) and NS-80 (sulfenamide accelerator pre-dispersion) with the weight ratio of 0.8:1.2:1.0, the other steps are the same as in example 1.
Example 7
In comparison with example 1, except that the antioxidant was a mixture of BHT (2, 6-di-t-butyl-4-methylphenol) and RW159 (polyethylene wax), the weight ratio was 3:1. the accelerator is a mixture of M-80 (thiazole accelerator pre-dispersion), DM-75 (thiazole accelerator pre-dispersion) and NS-80 (sulfenamide accelerator pre-dispersion) with the weight ratio of 1.8:2.2:2.0, the other steps are the same as in example 1.
Example 8
In comparison with example 3, the procedure is as in example 3, except for the natural rubber of SVR-10.
Example 9
In comparison with example 3, the procedure was as in example 3 except for the natural rubber of the brand RSS 3.
Example 10
The procedure of example 1 was repeated except that the vulcanizing temperature was 150℃and the vulcanizing time was 160 seconds and the vulcanizing pressure was 5MPa, as compared with example 1.
Example 11
The procedure of example 1 was repeated except that the vulcanizing temperature was 160℃and the vulcanizing time was 180 seconds and the vulcanizing pressure was 7MPa, as compared with example 1.
Example 12
The procedure of example 1 was repeated except that the vulcanizing temperature was 160℃and the vulcanizing time was 160 seconds and the vulcanizing pressure was 5MPa, as compared with example 1.
Performance detection
The rubber soles produced in example 1, example 2 and example 3 were subjected to performance test. Physical property detection is specifically performed according to the standards of GB/T533-2008, GB/T531.1-2008, GB/T528-2009, GB/T529-2008, GB/T9867-2008, GB/T3903.1-2017, GB/T15005-1995, GBT 18949-2003, SATRA TM144 and the like, and specific detection results are shown in Table 1.
Table 1 table of performance test results
As can be seen from the above table, the sole material prepared by the invention has the following characteristics: the sole material has the advantages of light weight, high strength, excellent durability, light weight, low possibility of color change and the like, and has the advantages of light weight, wear resistance, flexibility, late color change and the like.
Among them, the rubber outsole material prepared in example 2 has the best overall properties, has also been put into production specifically, and produces good market feedback effects.
According to the results, the rubber composition provided by the embodiment of the invention improves the strength and wear resistance of the sole material by adding the high-performance natural rubber into the rubber composition, improves the high-low temperature resistance of the sole material by adding the SEBS rubber, and improves the bending resistance of the sole material by adding the VCR rubber. The high styrene reinforced resin and the hollow glass fiber material are used for further improving the strength of the sole material and lightening the quality of the sole material. BHT (2, 6-di-tert-butyl-4-methylphenol) is used as an anti-aging agent, can be used as a composition antioxidant to inhibit or delay oxidative degradation of rubber, and can be used as a sizing material stabilizer of synthetic rubber (SEBS and VCR) so that the sole material has good glossiness and is not easy to change color. In addition, the preparation method provided by the embodiment of the invention is simple, and the density of the prepared rubber composition can reach 0.90g/cm 3 DIN abrasion of 96mm 3 The wear-resistant rubber material is light in weight and wear-resistant, solves the problem that the existing rubber large-base material often cannot ensure the wear-resistant performance while being light in weight, and has wide market prospect.
The foregoing has outlined the more detailed description of the preferred embodiment of the invention in order that the basic principles, features and advantages of the invention may be described. However, it should be understood by those skilled in the art that the embodiments of the present invention are not limited to the above-described embodiments, and the above-described embodiments and the description are only preferred embodiments of the present invention, and are not intended to limit the present invention, and various changes may be made without departing from the spirit of the embodiments of the present invention, within the knowledge of those skilled in the art. It is not necessary here nor is it exhaustive of all embodiments. And obvious variations or modifications thereof are contemplated as falling within the scope of the embodiments of the present invention.
Claims (10)
1. The rubber composition is characterized by comprising the following raw materials in parts by weight: 55-85 parts of natural rubber, 10-30 parts of SEBS rubber, 5-25 parts of butadiene rubber, 20-40 parts of rubber reinforcing agent, 10-30 parts of hollow glass fiber material, 3-4 parts of zinc oxide, 0.5-2.5 parts of stearic acid, 2-6 parts of filler dispersing agent, 3-5 parts of anti-aging agent, 2-6 parts of accelerator and 1-2 parts of sulfur.
2. The rubber composition according to claim 1, wherein the rubber composition comprises the following raw materials in parts by weight: 60-80 parts of natural rubber, 10-20 parts of SEBS rubber, 10-20 parts of butadiene rubber, 20-30 parts of rubber reinforcing agent, 20-30 parts of hollow glass fiber material, 3-4 parts of zinc oxide, 1-2 parts of stearic acid, 3-5 parts of filler dispersing agent, 3-5 parts of anti-aging agent, 3-5 parts of accelerator and 1-2 parts of sulfur.
3. The rubber composition according to claim 2, wherein the natural rubber is selected from any one of natural rubber having a brand name of RSS3, natural rubber having a brand name of SVR-3L, and natural rubber having a brand name of SVR-10.
4. A rubber composition according to claim 3, wherein the SEBS rubber is a hydrogenated styrene-butadiene block copolymer, wherein the polybutadiene block hydrogenation degree is more than 90% and the polystyrene block hydrogenation degree is less than 10%.
5. The rubber composition according to claim 4, wherein the antioxidant is a mixture of 2, 6-di-tert-butyl-4-methylphenol and polyethylene wax, and the weight ratio is 2-3:1-2.
6. The rubber composition according to claim 5, wherein the accelerator is one or more selected from the group consisting of thiazole accelerators and sulfenamide accelerators.
7. A process for preparing a rubber composition as claimed in any one of claims 1 to 6, comprising the steps of:
1) Putting natural rubber, SEBS rubber and butadiene rubber into a banburying chamber in proportion at the temperature of 90-100 ℃ for bolt pressing and mixing;
2) Then adding a rubber reinforcing agent, a hollow glass fiber material, zinc oxide, stearic acid, a filler dispersing agent and an anti-aging agent into a banburying chamber, pressing and mixing, discharging rubber, and cooling to obtain a section of rubber compound;
3) And stacking a section of mixed rubber on a wrapping roller of an open mill, adding an accelerator and sulfur, uniformly mixing, blanking and vulcanizing to obtain the rubber composition.
8. The method of producing a rubber composition according to claim 7, wherein in the method of producing a rubber composition, the vulcanization temperature is 150℃to 160℃and the vulcanization time is 160 seconds to 180 seconds, and the vulcanization pressure is 5MPa to 7MPa.
9. A rubber composition produced by the process for producing a rubber composition according to claim 7 or 8.
10. Use of the rubber composition according to claim 9 in the manufacture of shoe materials.
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| CN202311872061.2A CN117844069A (en) | 2023-12-29 | 2023-12-29 | Rubber composition and preparation method and application thereof |
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