CN111234158A - Elastic resin based on polyol and preparation method and application thereof - Google Patents
Elastic resin based on polyol and preparation method and application thereof Download PDFInfo
- Publication number
- CN111234158A CN111234158A CN202010254063.5A CN202010254063A CN111234158A CN 111234158 A CN111234158 A CN 111234158A CN 202010254063 A CN202010254063 A CN 202010254063A CN 111234158 A CN111234158 A CN 111234158A
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- parts
- polyol
- stirring
- solution
- minutes
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- 229920005862 polyol Polymers 0.000 title claims abstract description 15
- 150000003077 polyols Chemical class 0.000 title claims abstract description 15
- 239000011347 resin Substances 0.000 title claims abstract description 14
- 229920005989 resin Polymers 0.000 title claims abstract description 14
- 238000002360 preparation method Methods 0.000 title abstract description 5
- 238000004917 polyol method Methods 0.000 title description 2
- 239000006185 dispersion Substances 0.000 claims abstract description 12
- 238000003756 stirring Methods 0.000 claims abstract description 10
- PTBDIHRZYDMNKB-UHFFFAOYSA-N 2,2-Bis(hydroxymethyl)propionic acid Chemical compound OCC(C)(CO)C(O)=O PTBDIHRZYDMNKB-UHFFFAOYSA-N 0.000 claims abstract description 8
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000005058 Isophorone diisocyanate Substances 0.000 claims abstract description 7
- 238000006243 chemical reaction Methods 0.000 claims abstract description 7
- NIMLQBUJDJZYEJ-UHFFFAOYSA-N isophorone diisocyanate Chemical compound CC1(C)CC(N=C=O)CC(C)(CN=C=O)C1 NIMLQBUJDJZYEJ-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000004970 Chain extender Substances 0.000 claims abstract description 5
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical group CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 claims description 18
- 238000000576 coating method Methods 0.000 claims description 18
- 239000011248 coating agent Substances 0.000 claims description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 16
- 238000000034 method Methods 0.000 claims description 10
- PIICEJLVQHRZGT-UHFFFAOYSA-N Ethylenediamine Chemical compound NCCN PIICEJLVQHRZGT-UHFFFAOYSA-N 0.000 claims description 7
- 238000001816 cooling Methods 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 6
- 238000009775 high-speed stirring Methods 0.000 claims description 6
- 239000003795 chemical substances by application Substances 0.000 claims description 5
- 230000003472 neutralizing effect Effects 0.000 claims description 4
- 125000003916 ethylene diamine group Chemical group 0.000 claims description 2
- 150000005846 sugar alcohols Polymers 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims 1
- 239000002184 metal Substances 0.000 description 15
- 230000000694 effects Effects 0.000 description 4
- 239000003973 paint Substances 0.000 description 4
- 238000004806 packaging method and process Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 239000006115 industrial coating Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000009418 renovation Methods 0.000 description 1
- 238000005201 scrubbing Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/08—Processes
- C08G18/10—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
- C08G18/12—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step using two or more compounds having active hydrogen in the first polymerisation step
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/08—Processes
- C08G18/0804—Manufacture of polymers containing ionic or ionogenic groups
- C08G18/0819—Manufacture of polymers containing ionic or ionogenic groups containing anionic or anionogenic groups
- C08G18/0823—Manufacture of polymers containing ionic or ionogenic groups containing anionic or anionogenic groups containing carboxylate salt groups or groups forming them
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/30—Low-molecular-weight compounds
- C08G18/34—Carboxylic acids; Esters thereof with monohydroxyl compounds
- C08G18/348—Hydroxycarboxylic acids
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
-
- 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
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Polyurethanes Or Polyureas (AREA)
Abstract
The invention discloses an elastic resin based on polyol and a preparation method and application thereof, wherein the polyol, dimethylolpropionic acid, isophorone diisocyanate and N-methylpyrrolidone are all put into a reaction vessel and heated to prepare a first solution for standby; and adding a neutralizer into the first solution prepared in the step one, stirring, dispersing, and dripping a chain extender after dispersion.
Description
Technical Field
The invention relates to the technical field of coatings, in particular to an elastic resin based on polyol and a preparation method and application thereof.
Background
The metal coating is an important branch of industrial coatings, and the sealing effect of the metal coating on the metal surface is utilized to prevent the corrosion and oxidation of the metal material caused by external water, air, solution and the like. The metal coating is widely applied to processing of various metal products and plays a role in protecting and decorating the metal. The traditional metal packaging coating is mainly made of hard resin, and the main purpose of the traditional metal packaging coating is to generate a large protection effect on the metal surface. However, the above hard resin coating has two significant technical drawbacks. First, the conventional metal packaging coating has high hardness and low flexibility, so that the coating is very easy to crack and break in the processes of bending, extending, stamping, stretching and the like of metal. Secondly, the surface smoothness of the traditional metal coating is higher, the traditional metal coating has a strong light reflection effect, and the surface of the coating has no elasticity. Therefore, the traditional metal coating has the defects of extremely poor coating anti-skid performance, high coating secondary processing difficulty, poor touch hand feeling and the like.
The elastic paint not only has the protection and decoration effects of common paint, but also has the functions of preventing water and covering cracks, and is characterized by rich tension, good elasticity, high plasticity, high viscosity, scrubbing resistance, difficult color change, no cracks, easy renovation and the like. The traditional elastic paint is only used for a paint spraying process, has poor elasticity durability, is easy to re-stick and is easy to fall off when being heated.
Disclosure of Invention
In order to overcome the defects in the prior art, the embodiment of the application discloses a preparation method of an elastic resin based on polyol, which comprises the following steps:
the method comprises the following steps: putting 800-1200 parts of polyhydric alcohol, 60-70 parts of dimethylolpropionic acid, 300-350 parts of isophorone diisocyanate and 150-160 parts of N-methylpyrrolidone into a reaction vessel, heating to 75-85 ℃, preserving heat for 2-4 hours, and cooling to 45-55 ℃ to prepare a first solution for later use;
step two: adding 40-60 parts of neutralizing agent into the first solution prepared in the first step, and stirring for 20 minutes;
step three: adding 1800-2200 parts of water into a dispersion tank, adding the solution prepared in the step two under high-speed stirring, dropwise adding 20-30 parts of chain extender after dispersion is finished, controlling the dropwise adding speed, completing dropwise adding within 30 minutes, and stirring after the dropwise adding is finished.
Further, the neutralizing agent is triethylamine.
Further, the chain extender is ethylenediamine.
Further, the ethylenediamine in the third step is diluted by 6 times of water.
The product produced by the above process according to the present invention is an elastomeric resin.
In another aspect of the invention, there is also provided the use of an elastomeric resin according to the above in a coating having an elastic hand.
The invention has the beneficial effects that the polyol is the main raw material for preparing the polyurethane adhesive, the polyol is used as a main substance to react with the curing agent N-methyl pyrrolidone, the ethylenediamine reacts with the dimethylolpropionic acid to ensure that the polyurethane obtains the self-emulsifying property, and the polyol is used as the main substance to react to generate the elastic resin, so the elastic resin has good elastic hand feeling, good rebound resilience and difficult cracking, and the coating prepared by the polyol can be widely used for products of metal substrates.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1:
putting 800 parts of polyol, 60 parts of dimethylolpropionic acid, 300 parts of isophorone diisocyanate and 150 parts of N-methylpyrrolidone into a reaction container, heating to 85 ℃, preserving heat for 2 hours, and cooling to 55 ℃ to prepare a first solution for later use; adding 40 parts of triethylamine into the prepared first solution, and stirring for 20 minutes; at the same time, 1800 parts of water were added to a dispersion tank, and the solution prepared above was added with high-speed stirring, and after dispersion, 20 parts of ethylenediamine diluted with 6 times of water was added dropwise over 30 minutes, followed by stirring for another 30 minutes.
Example 2:
putting 1000 parts of polyol, 65 parts of dimethylolpropionic acid, 330 parts of isophorone diisocyanate and 155 parts of N-methylpyrrolidone into a reaction container, heating to 80 ℃, preserving heat for 3 hours, and cooling to 50 ℃ to prepare a first solution for later use; adding 50 parts of triethylamine into the prepared first solution, and stirring for 20 minutes; at the same time, 2000 parts of water were added to a dispersion tank and the solution obtained above was added with high-speed stirring, and 25 parts of water were added dropwise within 30 minutes after dispersion
Ethylenediamine diluted by 6 times water was stirred for another 30 minutes.
Example 3:
putting 1200 parts of polyol, 70 parts of dimethylolpropionic acid, 350 parts of isophorone diisocyanate and 160 parts of N-methylpyrrolidone into a reaction vessel, heating to 75 ℃, preserving heat for 4 hours, and cooling to 45 ℃ to prepare a first solution for later use; adding 60 parts of triethylamine into the prepared first solution, and stirring for 20 minutes; simultaneously adding 2200 parts of water into a dispersion tank, adding the prepared solution under high-speed stirring, and dropwise adding 30 parts of the solution within 30 minutes after dispersion
Ethylenediamine diluted by 6 times water was stirred for another 30 minutes.
Example 4:
putting 1000 parts of polyol, 66 parts of dimethylolpropionic acid, 340 parts of isophorone diisocyanate and 158 parts of N-methylpyrrolidone into a reaction container, heating to 80 ℃, keeping the temperature for 3 hours, and cooling to 50 ℃ to prepare a first solution for later use; adding 50 parts of triethylamine into the prepared first solution, and stirring for 20 minutes; adding 1950 parts of water into a dispersion tank, adding the obtained solution under high speed stirring, dispersing, and adding 25 parts of water dropwise within 30 minutes
Ethylenediamine diluted by 6 times water was stirred for another 30 minutes.
The principle and the implementation mode of the invention are explained by applying specific embodiments in the invention, and the description of the embodiments is only used for helping to understand the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (6)
1. A method for producing an elastic polyol-based resin, comprising the steps of:
the method comprises the following steps: putting 800-1200 parts of polyhydric alcohol, 60-70 parts of dimethylolpropionic acid, 300-350 parts of isophorone diisocyanate and 150-160 parts of N-methylpyrrolidone into a reaction vessel, heating to 75-85 ℃, preserving heat for 2-4 hours, and cooling to 45-55 ℃ to prepare a first solution for later use;
step two: adding 40-60 parts of neutralizing agent into the first solution prepared in the first step, and stirring for 20 minutes;
step three: adding 1800-2200 parts of water into a dispersion tank, adding the solution prepared in the step two under high-speed stirring, dropwise adding 20-30 parts of chain extender after dispersion is finished, controlling the dropwise adding speed, completing dropwise adding within 30 minutes, and stirring after the dropwise adding is finished.
2. The method according to claim 1, wherein the neutralizing agent is triethylamine.
3. The method of claim 1, wherein the chain extender is ethylene diamine.
4. The method according to claim 1, wherein the ethylenediamine in step three is diluted with 6 times of water.
5. An elastomeric resin comprising the product prepared by the process of any one of claims 1 to 5.
6. Use of the elastomeric resin of claim 5 in an elastomeric hand coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010254063.5A CN111234158A (en) | 2020-04-02 | 2020-04-02 | Elastic resin based on polyol and preparation method and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010254063.5A CN111234158A (en) | 2020-04-02 | 2020-04-02 | Elastic resin based on polyol and preparation method and application thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111234158A true CN111234158A (en) | 2020-06-05 |
Family
ID=70873591
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010254063.5A Pending CN111234158A (en) | 2020-04-02 | 2020-04-02 | Elastic resin based on polyol and preparation method and application thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111234158A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020026006A1 (en) * | 2000-07-06 | 2002-02-28 | Garcia Guillermina C. | Anionic waterborne polyurethane dispersions containing polyfluorooxetanes |
| CN102604029A (en) * | 2012-02-22 | 2012-07-25 | 常州大学 | Fluorine-containing waterborne polyurethane (PU) and preparation method thereof |
| CN103087291A (en) * | 2013-02-01 | 2013-05-08 | 陕西科技大学 | Preparation method of high solid content waterborne polyurethane |
| CN104629576A (en) * | 2015-01-19 | 2015-05-20 | 安徽嘉年华漆业有限公司 | High-performance water-based wood coating |
-
2020
- 2020-04-02 CN CN202010254063.5A patent/CN111234158A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020026006A1 (en) * | 2000-07-06 | 2002-02-28 | Garcia Guillermina C. | Anionic waterborne polyurethane dispersions containing polyfluorooxetanes |
| CN102604029A (en) * | 2012-02-22 | 2012-07-25 | 常州大学 | Fluorine-containing waterborne polyurethane (PU) and preparation method thereof |
| CN103087291A (en) * | 2013-02-01 | 2013-05-08 | 陕西科技大学 | Preparation method of high solid content waterborne polyurethane |
| CN104629576A (en) * | 2015-01-19 | 2015-05-20 | 安徽嘉年华漆业有限公司 | High-performance water-based wood coating |
Non-Patent Citations (3)
| Title |
|---|
| 卫石强等: ""聚碳酸酯型水性聚氨酯的制备与性能研究"", 《应用化工》 * |
| 张龙等: "《绿色化学》", 31 August 2014, 华中科技大学出版社 * |
| 陶启宇等: ""热红外隐身涂料用水性聚氨酯的制备研究"", 《涂料工业》 * |
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| 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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200605 |
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| RJ01 | Rejection of invention patent application after publication |