Fluoride-free water-repellent antifouling finishing agent and preparation method and application thereof

A fluorine-free water-repellent and finishing agent technology, applied in anti-coloring pollution/anti-fouling fibers, fiber treatment, shrink-resistant fibers, etc., can solve the problems that the finishing agent cannot achieve super water repellency and does not have anti-fouling, etc. Achieving hand and breathability retention, ease of application, improved antimicrobial and anti-felting properties

Active Publication Date: 2016-10-12
JIANGSU NEW REBA TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But this finishing agent can't achieve super water-repellent effect, and it doesn't have anti-fouling effect

Method used

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  • Fluoride-free water-repellent antifouling finishing agent and preparation method and application thereof
  • Fluoride-free water-repellent antifouling finishing agent and preparation method and application thereof
  • Fluoride-free water-repellent antifouling finishing agent and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Example 1. A fluorine-free water-repellent and antifouling finishing agent

[0030] The fluorine-free water-repellent and antifouling finishing agent described in Example 1 of the present invention includes system A and system B, the weight ratio of system A and system B in the finishing agent is 1:0.7, and the system A is composed of 0.3% chitosan oligosaccharide , water-based polyurethane 8% and the balance of water, the system B is modified nano-silica sol.

[0031] Preparation:

[0032] ⅰ) Preparation of system A: dissolving chitosan and water-based polyurethane in water, and mixing uniformly to obtain system A;

[0033] ii) Preparation of system B:

[0034] S1. Dilute the water glass with a modulus n of 2 with distilled water until the silicon content of the solution is 4wt%, to obtain a water glass solution; in the state of stirring at a speed of 10ml / min, press the water glass solution: mixed solution = 1:1 Add the above-mentioned water glass solution dropwise...

Embodiment 2

[0038] Example 2, a fluorine-free water-repellent and antifouling finishing agent

[0039] The fluorine-free water-repellent and antifouling finishing agent described in Example 2 of the present invention includes system A and system B, the weight ratio of system A and system B in the finishing agent is 1:0.6, and the system A is composed of 0.8% chitosan oligosaccharide , water-based polyurethane 6% and the balance of water, the system B is modified nano-silica sol.

[0040] Preparation:

[0041] ⅰ) Preparation of system A: dissolving chitosan and water-based polyurethane in water, and mixing uniformly to obtain system A;

[0042] ii) Preparation of system B:

[0043] S1. Dilute the water glass with a modulus n of 2 with distilled water until the silicon content of the solution is 4wt%, to obtain a water glass solution; in the state of stirring at a speed of 10ml / min, press the water glass solution: mixed solution = 1:1 Add the above-mentioned water glass solution dropwise...

Embodiment 3

[0047] Example 3. A fluorine-free water-repellent and antifouling finishing agent

[0048] The fluorine-free water-repellent and antifouling finishing agent described in Example 3 of the present invention includes system A and system B, and the weight ratio of system A to system B in the finishing agent is 1:0.8, and the system A is composed of 1% chitosan oligosaccharide , water-based polyurethane 10% and the balance of water, the system B is modified nano-silica sol.

[0049] The preparation method refers to Example 2.

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PUM

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Abstract

The invention belongs to the field of textile finishing agents, and particularly relates to a fluoride-free water-repellent antifouling finishing agent and a preparation method and application thereof. The finishing agent comprises a system A and a system B, the weight ratio of the system A to the system B is 1:(0.6-0.8), the system A is prepared from 0.3%-3% of chitosan oligosaccharide, 1%-10% of waterborne polyurethane and the balance water, and the system B is modified nanosilicon dioxide sol. According to the fluoride-free water-repellent antifouling finishing agent, a textile finished through the finishing agent has the super-water-repellent and antifouling effects, meanwhile, the good hand feeling and breathability of the textile can be kept, the excellent antibacterial property and shrink-proofing property are achieved, and a preparation process of the finishing agent is easy to operate and suitable for application and popularization.

Description

technical field [0001] The invention belongs to the field of textile finishing agents, and in particular relates to a fluorine-free water-repellent and antifouling finishing agent as well as its preparation method and application. Background technique [0002] The super water-repellent surface usually refers to the static contact angle between the solid surface and water greater than 150°. Whether it can achieve super water repellency is determined by the chemical composition and microstructure of the solid surface. It is used in many fields such as scientific research, industrial and agricultural production, and daily life. It has broad application prospects. With the rapid development of science and technology, super water-repellent functional textiles are increasingly favored by people for their unique self-cleaning and anti-pollution properties. Ultra-water-repellent textiles can be widely used in medical personnel clothing, rain / snow clothing, tents, military combat un...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M15/564D06M15/03D06M13/368D06M11/79
CPCD06M11/79D06M13/368D06M15/03D06M15/564D06M16/00D06M2200/01D06M2200/12D06M2200/45D06M2200/50
Inventor 储平徐有琦
Owner JIANGSU NEW REBA TECH CO LTD
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