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Silicon-containing water repellent finishing agent

A technology of water-repellent finishing and silicone, which is applied in the field of textiles, can solve the problems of silicone mechanical strength and poor adhesion, and achieve the effect of large silicon-oxygen bond angle, good flexibility, and large steric hindrance

Active Publication Date: 2019-05-14
浙江东进新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the mechanical strength and adhesion of silicone are slightly worse

Method used

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  • Silicon-containing water repellent finishing agent

Examples

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Effect test

Embodiment 1

[0043] A silicon-containing water-repellent finishing agent, which is formed by blending silicone-modified acrylate emulsion and silicone-modified polyurethane emulsion, wherein, 86 parts of silicone-modified acrylate emulsion and 72 parts of silicone-modified polyurethane emulsion;

[0044] Described organosilicon modified acrylate emulsion, preparation method is as follows:

[0045] (1) Stir and dissolve 1.6 parts of AEO-9 fatty alcohol polyoxyethylene ether, 0.7 part of OP-10 alkylphenol polyoxyethylene (10) ether, 3.8 parts of SDS sodium lauryl sulfate and 124 parts of water into an aqueous solution; Add 32 parts of methyl methacrylate, 13 parts of ethyl acrylate, 45 parts of butyl acrylate, 16 parts of octadecyl acrylate, 12 parts of dicapped vinyl silicone oil, 14 parts of functional silicone monomer, 6 parts of diacetone Acrylamide, after fully mixing, emulsify with high-speed stirring to form a pre-emulsion;

[0046] (2) Add 72 parts of water, 0.8 part of AEO-9 fatty al...

Embodiment 2

[0059] A silicon-containing water-repellent finishing agent, which is formed by blending silicone-modified acrylate emulsion and silicone-modified polyurethane emulsion, wherein, 104 parts of silicone-modified acrylate emulsion and 84 parts of silicone-modified polyurethane emulsion;

[0060] Described organosilicon modified acrylate emulsion, preparation method is as follows:

[0061] (1) Stir and dissolve 1.6 parts of AEO-9 fatty alcohol polyoxyethylene ether, 0.7 part of OP-10 alkylphenol polyoxyethylene (10) ether, 3.8 parts of SDS sodium lauryl sulfate and 124 parts of water into an aqueous solution; Add 32 parts of methyl methacrylate, 13 parts of ethyl acrylate, 45 parts of butyl acrylate, 16 parts of octadecyl acrylate, 12 parts of dicapped vinyl silicone oil, 14 parts of functional silicone monomer, 6 parts of diacetone Acrylamide, after fully mixing, emulsify with high-speed stirring to form a pre-emulsion;

[0062] (2) Add 72 parts of water, 0.8 part of AEO-9 fatty...

Embodiment 3

[0075] A silicon-containing water-repellent finishing agent, which is formed by blending silicone-modified acrylate emulsion and silicone-modified polyurethane emulsion, wherein, 122 parts of silicone-modified acrylate emulsion and 94 parts of silicone-modified polyurethane emulsion;

[0076] Described organosilicon modified acrylate emulsion, preparation method is as follows:

[0077] (1) Stir and dissolve 1.6 parts of AEO-9 fatty alcohol polyoxyethylene ether, 0.7 part of OP-10 alkylphenol polyoxyethylene (10) ether, 3.8 parts of SDS sodium lauryl sulfate and 124 parts of water into an aqueous solution; Add 32 parts of methyl methacrylate, 13 parts of ethyl acrylate, 45 parts of butyl acrylate, 16 parts of octadecyl acrylate, 12 parts of dicapped vinyl silicone oil, 14 parts of functional silicone monomer, 6 parts of diacetone Acrylamide, after fully mixing, emulsify with high-speed stirring to form a pre-emulsion;

[0078] (2) Add 72 parts of water, 0.8 part of AEO-9 fatty...

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Abstract

The invention discloses a silicon-containing water repellent finishing agent. The silicon-containing water repellent finishing agent is formed by blending 86-122 parts of an organosilicon modified acrylate emulsion and 72-94 parts of an organosilicon modified polyurethane emulsion. The organosilicon functional monomer using a Si(CH3)3 group is adopted, because of large steric hindrance and non-hydrolysis, the stability of emulsion polymerization is greatly improved, the content of silicon in polymer is increased, the distribution of organosilicon in a polymer molecular chain is enabled to be balanced, and the water repellency of the polymer is enhanced. Based on the complementary properties of polyurethane and polyacrylate, the two emulsions are blended and compounded to obtain the composite finishing agent with excellent water repellency. By introducing diacetone acrylamide and adipic dihydrazide into the emulsions, the crosslinking sites in the system can be increased and the self-crosslinking performance can be improved after the two emulsions are blended to form the moderate temperature self-crosslinking finishing agent, and the baking temperature can be appropriately reduced.

Description

technical field [0001] The invention relates to a water-repellent finishing agent, in particular to a silicone water-repellent finishing agent, which is applied in the field of textiles. Background technique [0002] Water-repellent finishing agents are widely used in the finishing process of functional textiles, and the commonly used finishing agents are fluorine-containing resins. Fluorine finishing agents have the characteristics of low concentration and high effect, and are stable to strong acid, strong alkali, high temperature and other environments. Fluorine compounds, however, are a continuing hazard to the environment. [0003] Compared with fluorine compounds, silicone water repellent has lower surface tension, and only needs a lower amount to achieve a good water repellent effect. Moreover, silicone is environmentally friendly, heat-resistant, and weather-resistant. However, the mechanical strength and adhesion of silicone are slightly inferior. [0004] Acrylic...

Claims

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Application Information

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IPC IPC(8): D06M15/263D06M15/356D06M15/643D06M15/564
Inventor 陈明贤孙立新董洪波
Owner 浙江东进新材料有限公司
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