Environment-friendly water washing resistant waterproof agent and preparation method thereof

A water-repellent and water-resistant technology, which is applied in textiles and papermaking, fiber treatment, and liquid-repellent fibers, etc., can solve the problems of weak water-washing resistance, achieve excellent waterproof effect and water-washing resistance, and stabilize the waterproof layer , Improve the effect of waterproof rate

Inactive Publication Date: 2018-06-15
JIANGSU NIMATE SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, the non-toxic, harmless and environmentally friendly fluorine-free waterproofing agent is another direction. Wacker Company of Germany has launched a fluorine-free waterproofing agent. Strong, but its environmental friendliness is unmatched by the latter, I believe that in the near future, fluorine-free waterproofing agent will be the mainstream product

Method used

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  • Environment-friendly water washing resistant waterproof agent and preparation method thereof
  • Environment-friendly water washing resistant waterproof agent and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] 1. Mix trimethylolpropane and 2,2-dimethylolpropionic acid at a molar ratio of 1:9, raise the temperature to 140-160°C, and add 0.5-1% catalyst to formaldehyde under the protection of argon. Base benzene sulfonic acid, react for 2-3 hours, reduce the pressure to 400-500Pa, continue the reaction for 2-3 hours, stop reducing the pressure and cool down to 40-60°C, add a certain amount of acetone to dissolve, and then precipitate with ether to obtain the product hyperbranched polyester.

[0033] 2. Mix lysine diisocyanate and hydroxyethyl acrylate in a molar ratio of 1:1, and react at 40-45°C for 10-12 hours to obtain the semi-addition product LDI-HEA.

[0034] 3. Stir and mix the hyperbranched polyester, succinic anhydride and a certain amount of acetone in step 1, react at 90-95°C for 4-5h, cool down to 45-50°C, add LDI-HEA, and continue the reaction for 5- 6h, stop the reaction. The product was precipitated with acetone ether and dried in vacuum to obtain a modified hyp...

Embodiment 2

[0036] 1. Mix trimethylolpropane and 2,2-dimethylolpropionic acid at a molar ratio of 1:9, raise the temperature to 140-160°C, and add 0.5-1% catalyst to formaldehyde under the protection of argon. Base benzene sulfonic acid, react for 2-3 hours, reduce the pressure to 400-500Pa, continue the reaction for 2-3 hours, stop reducing the pressure and cool down to 40-60°C, add a certain amount of acetone to dissolve, and then precipitate with ether to obtain the product hyperbranched polyester.

[0037] 2. Mix lysine diisocyanate and hydroxyethyl acrylate in a molar ratio of 1:1, and react at 40-45°C for 10-12 hours to obtain the semi-addition product LDI-HEA.

[0038] 3. Stir and mix the hyperbranched polyester, succinic anhydride and a certain amount of acetone in step 1, react at 90-95°C for 4-5h, cool down to 45-50°C, add LDI-HEA, and continue the reaction for 5- 6h, stop the reaction. The product was precipitated with acetone ether and dried in vacuum to obtain a modified hyp...

Embodiment 3

[0040] 1. Mix trimethylolpropane and 2,2-dimethylolpropionic acid at a molar ratio of 1:20, raise the temperature to 140-160°C, and add 0.5-1% catalyst to formaldehyde under the protection of argon Base benzene sulfonic acid, react for 2-3 hours, reduce the pressure to 400-500Pa, continue the reaction for 2-3 hours, stop reducing the pressure and cool down to 40-60°C, add a certain amount of acetone to dissolve, and then precipitate with ether to obtain the product hyperbranched polyester.

[0041] 2. Mix lysine diisocyanate and hydroxyethyl acrylate in a molar ratio of 1:1, and react at 40-45°C for 10-12 hours to obtain the semi-addition product LDI-HEA.

[0042] 3. Stir and mix the hyperbranched polyester, succinic anhydride and a certain amount of acetone in step 1, react at 90-95°C for 4-5h, cool down to 45-50°C, add LDI-HEA, and continue the reaction for 5- 6h, stop the reaction. The product was precipitated with acetone ether and dried in vacuum to obtain a modified hyp...

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Abstract

The invention provides an environment-friendly water washing resistant waterproof agent and a preparation method thereof. The waterproof agent is characterized by comprising a hyperbranched polyestermodified compound, and has the molecular formula as shown in the description, A-OH is a hyperbranched polyester prepared from trimethylolpropane and 2,2-dimethylolpropionic acid through reactions, andx+y is less than or equal to the hydroxyl number of A. The preparation method comprises the following steps: preparing the hyperbranched polyester, preparing a half-addition product LDI-HEA, and performing modification on the hyperbranched polyester. The invention provides the environment-friendly water washing resistant waterproof agent and the preparation method thereof, and due to specific multi-active groups and a net-shaped structure of the waterproof agent, the waterproof agent is excellent in waterproof effect and water washing resistance.

Description

technical field [0001] The invention belongs to the field of post-finishing of textile printing and dyeing auxiliaries, and in particular relates to an environment-friendly washable and waterproof agent and a preparation method thereof. Background technique [0002] Entering the 21st century, human beings are facing major issues of environmental protection. All products that are harmful to the environment will be slowly replaced. At present, the leading products of fluorine-containing waterproof finishing agents on the market are still acrylate polymers containing perfluorinated long carbon chains (generally perfluoroalkyl acrylates containing 8 carbons). With the progress of research, people gradually found that perfluorooctanesulfonyl compound (PFOS) and perfluorooctanoic acid ammonium compound (PFOA) were contained in perfluorooctane sulfonyl compound (PFOS) and perfluorooctanoic acid ammonium compound (PFOA) in the acrylate polymer of perfluorinated long carbon chain gr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M15/572D06M15/01C08G18/42C08G18/77C08G18/67
CPCC08G18/4286C08G18/672C08G18/771D06M15/01D06M15/572D06M2200/12C08G18/42
Inventor 徐美君仲林伟查鹏程赵海花
Owner JIANGSU NIMATE SCI & TECH CO LTD
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