CN111393603A - Water-based resin and preparation method and application thereof - Google Patents
Water-based resin and preparation method and application thereof Download PDFInfo
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- CN111393603A CN111393603A CN202010254324.3A CN202010254324A CN111393603A CN 111393603 A CN111393603 A CN 111393603A CN 202010254324 A CN202010254324 A CN 202010254324A CN 111393603 A CN111393603 A CN 111393603A
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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
- C08G18/28—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
- C08G18/32—Polyhydroxy compounds; Polyamines; Hydroxyamines
- C08G18/3225—Polyamines
- C08G18/3228—Polyamines acyclic
-
- 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
- C08G18/4266—Polycondensates having carboxylic or carbonic ester groups in the main chain prepared from hydroxycarboxylic acids and/or lactones
- C08G18/4269—Lactones
- C08G18/4277—Caprolactone and/or substituted caprolactone
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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
- C08G18/6637—Compounds of group C08G18/42 with compounds of group C08G18/32 or polyamines of C08G18/38
- C08G18/6648—Compounds of group C08G18/42 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/3225 or C08G18/3271 and/or polyamines of C08G18/38
- C08G18/6651—Compounds of group C08G18/42 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/3225 or C08G18/3271 and/or polyamines of C08G18/38 with compounds of group C08G18/3225 or polyamines of C08G18/38
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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
- C09D175/06—Polyurethanes from polyesters
-
- 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
- C08G2230/00—Compositions for preparing biodegradable polymers
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Polyurethanes Or Polyureas (AREA)
Abstract
The invention discloses a water-based resin and a preparation method and application thereof, which comprises the steps of putting polycaprolactone, dimethylolpropionic acid, isophorone diisocyanate and N-methylpyrrolidone into a reaction container, and heating to prepare a first solution for later use; and adding a neutralizer into the first solution prepared in the step one, stirring, dispersing, and then dropwise adding a chain extender.
Description
Technical Field
The invention relates to the technical field of coatings, in particular to a water-based resin and a preparation method and application thereof.
Background
The water-based polyurethane resin has gradually replaced solvent-based polyurethane resin, and becomes an important direction for the development of polyurethane industry. The waterborne polyurethane can be widely applied to coatings, adhesives, fabric coatings and finishing agents, leather finishing agents, paper surface treating agents and fiber surface treating agents.
The existing waterborne resin is waterborne polyurethane resin synthesized by common polyol, and because the polyurethane is in a water phase for a long time, ester groups are easy to hydrolyze and break, the storage time is short, and the stability is poor.
Disclosure of Invention
In order to overcome the defects in the prior art, the embodiment of the application discloses a waterborne 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 polycaprolactone, 60-70 parts of dimethylolpropionic acid, 350 parts of isophorone diisocyanate and 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 polycaprolactone is used as a main substance to react with N-methyl pyrrolidone serving as a curing agent, ethylenediamine reacts with dimethylolpropionic acid to enable polyurethane to obtain self-emulsifying property, and the polycaprolactone is used as a reaction main body, so that the polyurethane has the advantages of good hydrolytic stability, good mechanical strength, good biocompatibility, good organic high polymer compatibility and good biodegradability in addition to the characteristics of the traditional polyol, can be used as a cell growth supporting material, can be compatible with various conventional plastics and greatly improves the adhesive force to special substrates. The prepared coating material has better moisture permeability, soft and plump hand feeling and the like, and is more suitable for various materials with waterproof and moisture permeable functions.
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 polycaprolactone, 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 polycaprolactone, 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 polycaprolactone, 70 parts of dimethylolpropionic acid, 350 parts of isophorone diisocyanate and 160 parts of N-methylpyrrolidone into a reaction container, 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 polycaprolactone, 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. The preparation method of the water-based resin is characterized by comprising the following steps:
the method comprises the following steps: putting 800-1200 parts of polycaprolactone, 60-70 parts of dimethylolpropionic acid, 350 parts of isophorone diisocyanate and 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 aqueous resin comprising the product of the process of any one of claims 1 to 5.
6. Use of the aqueous resin according to claim 5 in coatings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010254324.3A CN111393603A (en) | 2020-04-02 | 2020-04-02 | Water-based resin and preparation method and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010254324.3A CN111393603A (en) | 2020-04-02 | 2020-04-02 | Water-based resin and preparation method and application thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111393603A true CN111393603A (en) | 2020-07-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010254324.3A Pending CN111393603A (en) | 2020-04-02 | 2020-04-02 | Water-based resin and preparation method and application thereof |
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| Country | Link |
|---|---|
| CN (1) | CN111393603A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104628984A (en) * | 2015-01-29 | 2015-05-20 | 沈阳化工大学 | Preparation method of star-structure water-based polyurethane adhesive |
| CN104974327A (en) * | 2015-08-07 | 2015-10-14 | 今创景新材料科技（上海）有限公司 | Waterborne polyurethane emulsion and preparation method thereof |
| CN106750126A (en) * | 2016-12-19 | 2017-05-31 | 东华大学 | A kind of preparation method of co-solvent aqueous polyurethane |
| CN110305287A (en) * | 2019-07-22 | 2019-10-08 | 安徽聚合辐化化工有限公司 | A kind of light aqueous polyurethane and preparation method thereof |
-
2020
- 2020-04-02 CN CN202010254324.3A patent/CN111393603A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104628984A (en) * | 2015-01-29 | 2015-05-20 | 沈阳化工大学 | Preparation method of star-structure water-based polyurethane adhesive |
| CN104974327A (en) * | 2015-08-07 | 2015-10-14 | 今创景新材料科技（上海）有限公司 | Waterborne polyurethane emulsion and preparation method thereof |
| CN106750126A (en) * | 2016-12-19 | 2017-05-31 | 东华大学 | A kind of preparation method of co-solvent aqueous polyurethane |
| CN110305287A (en) * | 2019-07-22 | 2019-10-08 | 安徽聚合辐化化工有限公司 | A kind of light aqueous polyurethane and preparation method thereof |
Non-Patent Citations (3)
| Title |
|---|
| 刘芳等: ""高固含量水性聚氨酯鞋用胶的制备与性能"", 《中国胶粘剂》 * |
| 张龙等: "《绿色化学》", 31 August 2014, 华中科技大学出版社 * |
| 柴春鹏等: "《高分子合成材料学》", 31 January 2019, 北京理工大学出版社 * |
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Application publication date: 20200710 |
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| RJ01 | Rejection of invention patent application after publication |