A kind of multifunctional foaming water-based resin and preparation method thereof

A water-based resin, multi-functional technology, applied in the field of polymer material preparation, can solve the problems of polluted environment, pungent odor of vulcanizing agent, expensive vulcanizing agent, etc., and achieves high strength, excellent weather resistance, and good film-forming properties. Effect

Active Publication Date: 2022-07-12
HUAIAN KAIYUE TECH DEV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the residual amount of water-soluble protein in natural latex gloves is positively correlated with the frequency and severity of allergic reactions, which will limit the application field of natural latex gloves to a certain extent; Steps, so the process is limited by the amount of vulcanizing agent, vulcanization temperature and vulcanization time
The vulcanizing agent has a pungent smell and pollutes the environment. Because it contains sulfur components, there are hidden dangers of inflammability and explosion, and the vulcanizing agent is more expensive, which increases the cost of nitrile gloves

Method used

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  • A kind of multifunctional foaming water-based resin and preparation method thereof
  • A kind of multifunctional foaming water-based resin and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] a. Put 75g of polytetrahydrofuran ether polyol and 5g of modified silicone into a 250mL four-necked flask equipped with a thermometer, agitator and a reflux condenser, heat up to 110°C, and dehydrate for 1h under a vacuum degree of >-0.09MPa, Cool the temperature to 60°C, add 10g of dried anionic chain extender dimethylol butyric acid, stir evenly, put in 15g of isophorone diisocyanate, and react at 90°C for 2h. The temperature was lowered to 70° C., 1.5 g of 1,4-butanediol, a small molecule chain extender, was added, and the reaction was continued at 70° C. for 1 hour. Cool down to <50°C, add catalyst organic bismuth 0.5g and 2 ml of acetone, stir and heat up to 75°C for 4h reaction. Then the temperature was lowered to 20°C, 7g of neutralizer triethylamine and 2ml of acetone were added, and the mixture was stirred for 30min to obtain a prepolymer;

[0040] b. Emulsify the prepolymer. The emulsification process is as follows: add 130 g of deionized water to the flask, ...

Embodiment 2

[0043]a. Put 72g of polytetrahydrofuran ether polyol and 8g of modified silicone into a 250mL four-necked flask equipped with a thermometer, agitator and a reflux condenser, heat up to 110°C, and dehydrate for 1h under a vacuum degree of >-0.09MPa, Cool the temperature to 60°C, add 7 g of dried anionic chain extender dimethylol butyric acid, stir evenly, add 18 g of isophorone diisocyanate, and react at 90°C for 2 hours. The temperature was lowered to 70° C., 1.5 g of 1,4-butanediol, a small molecule chain extender, was added, and the reaction was continued at 70° C. for 1 hour. The temperature was lowered to <50°C, 0.7 g of catalyst organic bismuth and 2 ml of acetone were added, and the temperature was raised to 75°C with stirring for 4 hours. Then cool down to 20°C, add neutralizing agent triethylamine 4g and acetone 2ml, stir for 30min to obtain prepolymer;

[0044] b. Emulsify the prepolymer. The emulsification process is as follows: add 135 g of deionized water to the f...

Embodiment 3

[0047] a. Put 70g of polytetrahydrofuran ether polyol and 10g of modified silicone into a 250mL four-necked flask equipped with a thermometer, agitator and a reflux condenser, heat up to 110°C, and dehydrate for 1h under a vacuum degree of >-0.09MPa, Cool the temperature to 60°C, add 5 g of dried anionic chain extender dimethylol butyric acid, stir evenly, add 18 g of isophorone diisocyanate, and react at 90°C for 2 hours. The temperature was lowered to 70° C., 1.5 g of 1,4-butanediol, a small molecule chain extender, was added, and the reaction was continued at 70° C. for 1 hour. The temperature was lowered to <50°C, 0.9 g of catalyst organic bismuth and 2 ml of acetone were added, and the temperature was raised to 75°C with stirring for 4 hours. Then the temperature was lowered to 20°C, 3 g of neutralizing agent triethylamine and 2 ml of acetone were added, and the mixture was stirred for 30 min to obtain a prepolymer;

[0048] b. Emulsify the prepolymer. The emulsification...

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Abstract

The invention discloses a multifunctional foaming water-based resin and a preparation method thereof. The following components are prepared in the following parts by weight: 65-75 parts of macromolecular polyol, 10-20 parts of isocyanate, and a hydrophilic chain extender. 5-10 parts, 0.5-2 parts of small molecular alcohol chain extender, 5-10 parts of modified organosilicon with light stability, 0.1-0.3 parts of catalyst, 3-7 parts of neutralizer, 5-10 parts of organic solvent parts, 1-10 parts of post-chain extender and 100-150 parts of deionized water. The present invention adopts the preparation method of anionic water-based polyurethane resin, selects DMBA or DMPA as the hydrophilic chain extender, introduces carboxyl groups, adds a neutralizing agent for neutralization, adds water for emulsification to form water-based polyurethane dispersion, and introduces Modified silicone resin, a light stabilizer is introduced into the modified silicone resin, so the obtained resin not only has the excellent weather resistance, water resistance and physical properties of the silicone modified polyurethane itself, but also has UV resistance and resistance. Properties of alcohol.

Description

technical field [0001] The invention belongs to the field of polymer material preparation, and particularly relates to a multifunctional foamed water-based resin and a preparation method thereof. Background technique [0002] Polyurethane is a polymer made from raw materials such as polyisocyanates and polyether polyols or polyester polyols or / and small molecular polyols, polyamines or water and other chain extenders or crosslinking agents. The water-based polyurethane was obtained by replacing the organic solvent as the dispersing medium. It has the advantages of safety and reliability, no pollution, good compatibility, excellent mechanical properties and film-forming properties, so water-based polyurethane resin is widely used in textile printing and dyeing processing, leather processing, adhesives, furniture paint, electrophoretic paint, medical and other fields . However, the single water-based polyurethane in the prior art has poor high temperature resistance and poor...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G18/66C08G18/48C08G18/61C08G18/34C08G18/32C08G18/12C08G101/00
CPCC08G18/6692C08G18/4854C08G18/61C08G18/348C08G18/3206C08G18/12C08G2101/00C08G18/3228
Inventor 李桂军李浩扬张锋冯会生甄雷雷
Owner HUAIAN KAIYUE TECH DEV
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