A silicon-containing water-repellent finishing agent

A technology of water-repellent finishing and silicone, which is applied in the field of textiles and can solve the problems of silicone mechanical strength and poor adhesion

Active Publication Date: 2021-04-30
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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  • A silicon-containing water-repellent finishing agent
  • A silicon-containing water-repellent finishing agent
  • A silicon-containing water-repellent finishing agent

Examples

Experimental program
Comparison scheme
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 a silicone-modified acrylate emulsion and a silicone-modified polyurethane emulsion, wherein the silicone-modified acrylate 86‑122 parts of emulsion, 72‑94 parts of silicone modified polyurethane emulsion; using Si(CH 3 ) 3 The organosilicon functional monomer of the group, due to its large steric hindrance and non-hydrolysis, greatly improves the stability of emulsion polymerization, increases the silicon content in the polymer, and makes the distribution of organosilicon in the polymer molecular chain even. Enhances the water repellency of polymers. Utilizing the complementary properties of polyurethane and polyacrylate, the two emulsions are blended and compounded to obtain a composite finishing agent with excellent water repellency. By introducing diacetone acrylamide and adipic hydrazide into the emulsion, after the two emulsions are blended, the crosslinking sites in the system can be increased, the self-crosslinking performance can be improved, and a medium-temperature self-crosslinking finishing agent can be formed, which can properly reduce Baking temperature.

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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Patent Type & Authority Patents(China)
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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