CN111234166A - Elastic resin and preparation method and application thereof - Google Patents
Elastic resin and preparation method and application thereof Download PDFInfo
- Publication number
- CN111234166A CN111234166A CN202010254322.4A CN202010254322A CN111234166A CN 111234166 A CN111234166 A CN 111234166A CN 202010254322 A CN202010254322 A CN 202010254322A CN 111234166 A CN111234166 A CN 111234166A
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Classifications
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- 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
- C08G18/66—Compounds of groups C08G18/42, C08G18/48, or C08G18/52
- C08G18/6633—Compounds of group C08G18/42
- C08G18/6659—Compounds of group C08G18/42 with compounds of group C08G18/34
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- 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
- C08G18/40—High-molecular-weight compounds
- C08G18/42—Polycondensates having carboxylic or carbonic ester groups in the main chain
- C08G18/44—Polycarbonates
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- 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
Abstract
The invention discloses an elastic resin and a preparation method and application thereof.A polycarbonate, 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 and a preparation method and application thereof.
Background
Polyurethane is a new organic polymer material, and is known as 'fifth major plastic'. The polyurethane material has wide application, can replace rubber, plastic, nylon and the like, and is used for airports, hotels, building materials, automobile factories, coal mine factories, cement factories, high-level apartments, villas, landscaping, color stone art, parks and the like.
After the traditional polyurethane material is molded, the elastic strength is a fixed value and cannot be changed, if the elasticity of a molded piece needs to be adjusted, the whole process needs to be adjusted, and in addition, after the polyurethane material is molded, the cohesion between product materials is low, so that the internal structural strength of the product is influenced.
Disclosure of Invention
In order to overcome the defects in the prior art, the embodiment of the application discloses an elastic resin and a preparation method and application thereof, wherein the preparation method comprises the following steps:
the method comprises the following steps: putting 800-1200 parts of polycarbonate, 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 polycarbonate is used as a main body substance to react with N-methyl pyrrolidone serving as a curing agent, and the ethylenediamine reacts with dimethylolpropionic acid, so that the polyurethane is obtained from the emulsifying property, the polycarbonate is a high polymer containing carbonate groups in molecular chains, is heat-resistant, impact-resistant, has good evidence performance, wear-resistant and oxidation-resistant, has excellent solvent resistance, chemical resistance and hydrolysis resistance, has excellent elastic hand feeling while keeping the characteristics of the polyurethane by using different initiators, and the coating material prepared by using the polycarbonate as the main body substance has good deformation resistance and stability, good elasticity and good hand feeling.
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 polycarbonate, 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 polycarbonate, 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; while 2000 parts of water was added to a dispersion tank, and the above-prepared solution was added under high-speed stirring, 25 parts of ethylenediamine diluted with 6 times of water was added dropwise within 30 minutes after dispersion, and further stirred for 30 minutes.
Example 3:
putting 1200 parts of polycarbonate, 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; while 2200 parts of water were added to a dispersion tank and the above-prepared solution was added under high-speed stirring, 30 parts of ethylenediamine diluted with 6 times of water was added dropwise within 30 minutes after dispersion, and further stirred for 30 minutes.
Example 4:
putting 1000 parts of polycarbonate, 66 parts of dimethylolpropionic acid, 340 parts of isophorone diisocyanate and 158 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; while 1950 parts of water was added to the dispersion tank and the above-prepared solution was added under high-speed stirring, 25 parts of ethylenediamine diluted with 6 times of water was added dropwise within 30 minutes after dispersion, and further stirred for 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 resin, characterized by comprising the steps of:
the method comprises the following steps: putting 800-1200 parts of polycarbonate, 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 a coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010254322.4A CN111234166A (en) | 2020-04-02 | 2020-04-02 | Elastic resin and preparation method and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010254322.4A CN111234166A (en) | 2020-04-02 | 2020-04-02 | Elastic resin and preparation method and application thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111234166A true CN111234166A (en) | 2020-06-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010254322.4A Pending CN111234166A (en) | 2020-04-02 | 2020-04-02 | Elastic resin and preparation method and application thereof |
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| Country | Link |
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| CN (1) | CN111234166A (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 CN202010254322.4A patent/CN111234166A/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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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200605 |
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| RJ01 | Rejection of invention patent application after publication |