Environment-friendly fluoride-free fabric waterproof moisture-permeable agent as well as preparation method and application thereof

A waterproof and moisture-permeable agent, an environmentally friendly technology, applied in textiles, papermaking, fiber treatment, etc., can solve the problems of high bioaccumulation, hard fabric feel, difficult to degrade, etc., and achieve simple production process, good air permeability, and production low cost effect

Pending Publication Date: 2022-07-29
GUANGZHOU UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Traditional textile waterproof coatings are mainly a kind of fabric finishing agent added with fluorine-containing compounds. Fluorine-containing water repellents have certain water resistance when applied to fabrics, but they contain perfluorooctanesulfonyl compounds (PFOS) and perfluorooctanoic acid ( PFOA), difficult to degrade, highly bioaccumulative, has seriously affected the ecological environment, and has been banned by exporting countries such as the European Union
The existing waterproof and moisture-permeable agent coats the surface of the fabric, so that the air-permeable pores are blocked, the fabric feels hard, and the air permeability is poor
Therefore, this kind of fabric is mostly used to make materials such as raincoats and tents, and is not suitable for personal clothing such as sportswear, clothes, shoes and hats, which seriously limits its practical application in many practical scenarios.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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  • Environment-friendly fluoride-free fabric waterproof moisture-permeable agent as well as preparation method and application thereof
  • Environment-friendly fluoride-free fabric waterproof moisture-permeable agent as well as preparation method and application thereof
  • Environment-friendly fluoride-free fabric waterproof moisture-permeable agent as well as preparation method and application thereof

Examples

Experimental program
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preparation example Construction

[0045] The preparation method of the aforementioned environmentally friendly fluorine-free fabric waterproof and moisture-permeable agent, comprising the following steps:

[0046] The monomer, the crosslinking agent and the initiator are mixed with the solvent A and the solvent B, added to the initiator dissolved by the solvent A and the solvent B, and the temperature is raised to react. After the reaction is completed The temperature is lowered, the regulator is added for neutralization reaction, the diluent is added to dilute and disperse to obtain an emulsion system, and the fluorine-free fabric waterproof and moisture-permeable agent is prepared.

[0047] The application of the fluorine-free fabric waterproof and moisture-permeable agent on the fabric, the fabric includes sportswear, medical protective clothing or ordinary clothes, shoes and hats.

[0048] A waterproof and moisture-permeable fabric, the waterproof and moisture-permeable fabric is obtained by finishing the ...

Embodiment 1

[0052] The fluorine-free waterproof and moisture-permeable fabric provided in the embodiment of the present invention has the following components, proportions, and steps of preparation and application:

[0053] (1) Synthetic fluorine-free fabric waterproof and moisture-permeable agent

[0054] Weigh 3.9g solvent isopropanol, propylene glycol butyl ether and 0.012g 2,2'-azobisisobutyronitrile respectively and add them to the three-necked flask, heat up to 90°C with an oil bath, and then add 4.4g ten Octene, 0.4g N-methylol acrylamide, 1.6g octadecyl methacrylate, 1.2g butyl methacrylate, 0.16g acrylic acid, 0.24g vinyl terminated polydimethyl methacrylate with molecular weight of 2000 Siloxane, 0.056g 2,2'-azobisisobutyronitrile, 2.1g isopropanol, 2.1g propylene glycol butyl ether were ultrasonically mixed, titrated into a three-necked flask, titrated for 30min, and then added 0.012g 2,2 '-Azobisisobutyronitrile was heated to 100°C, kept for 10h, cooled to room temperature af...

Embodiment 2

[0060] The fluorine-free waterproof and moisture-permeable fabric provided in the embodiment of the present invention has the following components, proportions, preparation and application steps:

[0061] (1) Synthetic fluorine-free fabric waterproof and moisture-permeable agent

[0062] Weigh 3.9g of solvent isopropanol, propylene glycol butyl ether (1:1), 0.012g of 2,2'-azobisisobutyronitrile were added to the three-necked flask, heated to 90°C with an oil bath, and then added to the three-necked flask. 4.4 g octadecene, 0.4 g N-methylol acrylamide, 1.36 g octadecyl methacrylate, 1.36 g butyl methacrylate, 0.24 g acrylic acid, 0.24 g vinyl terminated with a molecular weight of 1250 Polydimethylsiloxane, 0.056g 2,2'-azobisisobutyronitrile, 2.1g isopropanol, 2.1g propylene glycol butyl ether were ultrasonically mixed, titrated into a three-necked flask, titrated for 30min, and then added 0.012 g 2,2'-azobisisobutyronitrile, heated to 100°C, kept for 10h, cooled to room temper...

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Abstract

The invention belongs to the field of environment-friendly fabric functional finishing agents and discloses an environment-friendly fluoride-free fabric waterproof moisture-permeable agent as well as a preparation method and application thereof. The moisture permeable agent is prepared from monomers, a cross-linking agent, an initiator, a solvent A, a solvent B, a regulator and a diluent, wherein the monomers comprise octadecene, octadecyl methacrylate, butyl methacrylate, vinyl terminated polydimethylsiloxane and acrylic acid; the regulator is N, N-dimethylethanolamine; and the diluent is water. The waterproof moisture-permeable agent provided by the invention can form a waterproof moisture-permeable film on the surface of a fabric, so that the fabric has waterproof performance on various aqueous liquids, the water contact angle can reach about 155 degrees, the rolling angle can reach about 6 degrees, water drops easily roll off from the surface of the fabric, and an excellent waterproof effect can still be kept in various severe environments.

Description

technical field [0001] The invention relates to the field of environmental protection fabric functional finishing agents, in particular to an environment-friendly fluorine-free fabric waterproof and moisture-permeable agent, a preparation method and an application. Background technique [0002] The traditional waterproof coating for textiles is mainly a type of fabric finishing agent added with fluorine-containing compounds. PFOA), which is difficult to degrade and has extremely high bioaccumulation, which seriously affects the ecological environment and has been banned by exporting countries such as the European Union. The existing waterproof and moisture-permeable agent coats the surface of the fabric, so that the air-permeable pores are blocked, the fabric feels hard, and the air permeability is poor. Therefore, such fabrics are mostly used to make raincoats, tents and other materials, and are not suitable for close-fitting clothing such as sportswear, clothes, shoes and...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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IPC IPC(8): D06M15/227D06M15/263C08F283/12C08F210/14C08F220/18C08F220/06
CPCD06M15/263D06M15/227C08F283/124D06M2200/12C08F210/14C08F220/1818C08F220/1804C08F220/06Y02P70/62
Inventor 黄佳胜吴旭于丹凤徐秀彬翁家豪
Owner GUANGZHOU UNIVERSITY
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