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Single-component emulsion organic silicon performed polymer self-cross-linked water-proof finishing agent and its preparation

A technology of waterproof finishing and silicone, which is applied in the field of textile industry and can solve the problems of small contact angle and little effect

Inactive Publication Date: 2005-02-16
上海汉宇理化研究所
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the limitation of the small contact angle of silicone itself, the effect has not been great.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] The formula of the selected waterproof finishing agent is: 1% of nano-silica, 15% of hydrogen-containing silicone oil, 1.5% of functional silicone, 2.5% of emulsifier, and 2% of surface modifier. First, the surface of the silica is modified, then the silica and hydrogen-containing silicone oil are made into a prepolymer, and then functional grafting is carried out, and finally an emulsifier is added for emulsification.

[0020] Use this water repellent finish on fabrics. Effects after use: It is found that the water repellency of the fabric is very high, reaching 90%. After use, the feel and color of the fabric do not change significantly, and its water-repellent performance is not affected by changes in temperature, and it also has good air permeability.

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Abstract

This invention publics a monocomponent emulsion preorganosilicon aggressiveness self crosslinking waterproof finish acidifier,of which the constituent includes silicon dioxide, hydrogen -silicone oil, functional organosilicon and surface modifier. The invention also publics the method preparing waterproof finish agent, which includes: first surface modify silicon dioxide, make silicon dioxide and hydrogen -silicone oil into performed polymer, then functional graft, in the end add emulsifying agent for emulsification. Waterproof finish produced by the this method equals fluor-finishing agent in waterproof effect, and is of low cost, so it's prospect application is good.

Description

technical field [0001] The invention belongs to the field of textile industry and relates to a waterproof finishing agent. Furthermore, the invention relates to a self-crosslinking waterproof finishing agent of a single-component emulsion organic silicon prepolymer made of silicon dioxide. Background technique [0002] With the continuous development of the domestic textile industry, the international textile processing is also increasingly transferred to the domestic, so the requirements for finishing and processing after textile are getting higher and higher. Water-repellent finishing has been widely used as a functional finishing agent for bags, raincoats, parasols and casual outerwear. [0003] There are two main types of water-repellent finishing agents: one is fluorine-containing materials, and the other is silicone materials. Fluorine-containing finishing agents, such as fluorine-containing acrylates, have the characteristics of large contact angle and high degree of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M15/643
Inventor 王建钢
Owner 上海汉宇理化研究所
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