Preparation method of durable fabric waterproof finishing agent and product thereof

A waterproof finishing and durable technology, applied in textiles and papermaking, fiber processing, plant fibers, etc., can solve the problem of fabrics being easily contaminated by liquids, and achieve the effects of excellent storage stability, simple preparation process, and easy availability of raw materials.

Active Publication Date: 2020-12-04
YANCHENG INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the high concentration of hydroxyl groups contained in cotton fibers makes the fabrics easily stained by liquids, so water and oil repellent functional finished cotton fabrics are sought after by consumers.

Method used

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  • Preparation method of durable fabric waterproof finishing agent and product thereof
  • Preparation method of durable fabric waterproof finishing agent and product thereof
  • Preparation method of durable fabric waterproof finishing agent and product thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] (1) Preparation of self-crosslinking fluorinated polyacrylate emulsion

[0035] Add 190mL of deionized water, 0.315g of anionic emulsifier SDS and 0.315g of nonionic emulsifier AEO-90.315g into a 250ml beaker, and emulsify and shear for 2min on a shear emulsifier with a rotation speed of 8000rps;

[0036] Then add 6g of perfluorohexyl ethyl acrylate, 12g of butyl acrylate, and 3g of methyl methacrylate, continue emulsifying and shearing for 15 minutes, then transfer to a 250mL three-necked flask, and raise the temperature to 75°C under the protection of N2;

[0037] Dissolve 0.126g of the initiator ammonium persulfate in 20mL of deionized water, and add it dropwise to the above reaction system through a constant pressure dropping funnel. The dropping time is about 1 hour. After the drop is completed, continue the reaction at 75°C for 3 hours, and then stop the reaction and cooled to room temperature to obtain a self-crosslinking fluorinated polyacrylate emulsion named S...

Embodiment 2

[0041] (1) Preparation of self-crosslinking fluorinated polyacrylate emulsion

[0042] Add 190mL of deionized water, 0.315g of anionic emulsifier SDS and 0.315g of nonionic emulsifier AEO-90.315g into a 250ml beaker, and emulsify and shear for 2min on a shear emulsifier with a rotation speed of 8000rps;

[0043] Then add 6g perfluorohexyl ethyl acrylate, 12g butyl acrylate, 3g methyl methacrylate and 0.84g cross-linking monomer KH-570, continue emulsification and shearing for 15min, then transfer to a 250mL three-necked flask, under the protection of N2 Heat up to 75°C;

[0044] Dissolve 0.126g of the initiator ammonium persulfate in 20mL of deionized water, and add it dropwise to the above reaction system through a constant pressure dropping funnel. The dropping time is about 1 hour. After the drop is completed, continue the reaction at 75°C for 3 hours, and then stop the reaction and cooled to room temperature to obtain a self-crosslinking fluorinated polyacrylate emulsion ...

Embodiment 3

[0048] (1) Preparation of self-crosslinking fluorinated polyacrylate emulsion

[0049] Add 190mL of deionized water, 0.315g of anionic emulsifier SDS and 0.315g of nonionic emulsifier AEO-90.315g into a 250ml beaker, and emulsify and shear for 2min on a shear emulsifier with a rotation speed of 8000rps;

[0050] Then add 6g of perfluorohexyl ethyl acrylate, 12g of butyl acrylate, 3g of methyl methacrylate and 1.68g of cross-linking monomer KH-570, continue emulsifying and shearing for 15min, then transfer to a 250mL three-necked flask, under the protection of N2 Heat up to 75°C;

[0051] Dissolve 0.126g of the initiator ammonium persulfate in 20mL of deionized water, and add it dropwise to the above reaction system through a constant pressure dropping funnel. The dropping time is about 1 hour. After the drop is completed, continue the reaction at 75°C for 3 hours, and then stop the reaction and cooled to room temperature to obtain a self-crosslinking fluorinated polyacrylate ...

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Abstract

The invention discloses a preparation method of a durable fabric waterproof finishing agent and the product thereof, wherein the preparation method comprises the steps: dissolving an anionic emulsifier and a non-ionic emulsifier into deionized water, shearing and emulsifying, adding perfluorohexylethyl acrylate, butyl acrylate, methyl methacrylate and a cross-linking monomer gamma-methacryloyloxypropyltrimethoxysilane, continuously emulsifying and shearing, transferring into a three-neck flask, and heating to 75 DEG C under the protection of N2; dissolving an initiator ammonium persulfate intodeionized water, dropwise adding into a reaction system through a constant-pressure dropping funnel for 1-2 hours, continuously reacting for 2-3 hours at the temperature of 75-80 DEG C after dropwiseadding, then stopping the reaction, and cooling to room temperature, so as to obtain the self-crosslinking fluorinated polyacrylate emulsion. The fluorinated polyacrylate emulsion with a self-crosslinking property is obtained, and the emulsion can be applied to fabric waterproof finishing to endow fabric with a durable waterproof effect.

Description

technical field [0001] The invention belongs to the field of textile chemical auxiliary agents, and in particular relates to a preparation method of a durable fabric waterproof finishing agent and a product thereof. Background technique [0002] As the market demand for industrial textiles continues to grow, various comfort properties, appearance properties, and special properties are increasingly favored by people. Among various natural and synthetic textiles, cotton fabric is one of the most widely used fabrics. However, the high concentration of hydroxyl groups contained in cotton fibers makes the fabrics easily stained by liquids, so water and oil repellent functionally finished cotton fabrics are sought after by consumers. [0003] In general, hydrophobic surfaces can be obtained in two ways: surface roughening and surface modification with low surface energy substances. In recent years, researchers have reported many methods for preparing hydrophobic surfaces, such a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F220/18C08F220/24C08F220/14C08F230/08D06M15/356D06M15/277
CPCC08F220/1804C08F2/26C08F2/30D06M15/3568D06M15/277D06M2101/06D06M2200/12C08F220/24C08F220/14C08F230/085
Inventor 蔡露康佳良吕存何雪梅周天池王丽丽
Owner YANCHENG INST OF TECH
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