Water-based hollow fluorine-silicon composite water-repellent and breathable textile finishing agent and preparation method

A breathable fabric and finishing agent technology, applied in fiber treatment, textiles and papermaking, liquid-repellent fibers, etc., can solve problems such as cost reduction, achieve the effects of reducing usage, saving fluorine resources, and good economic and social benefits

Active Publication Date: 2016-09-28
FUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0021] Generally speaking, the cost of fabric finishing agents needs to be further reduced, and milder and more controllable polymerization conditions need to be sought, and the performance of fabric finishing agents needs to be further improved.

Method used

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  • Water-based hollow fluorine-silicon composite water-repellent and breathable textile finishing agent and preparation method
  • Water-based hollow fluorine-silicon composite water-repellent and breathable textile finishing agent and preparation method
  • Water-based hollow fluorine-silicon composite water-repellent and breathable textile finishing agent and preparation method

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0102] A preparation method of an aqueous hollow fluorosilicone composite water-repellent and breathable fabric finishing agent, which comprises the following steps:

[0103] a. Preparation of the emulsification system: Weigh the components of the emulsification system according to the weight of each component, and combine the sorbitan fatty acid ester (Span80), alkylphenol polyoxyethylene ether (OP-10), twelve Sodium alkyl sulphate (SDS), fatty alcohol polyoxyethylene ether (AES) and distilled water are mixed in a magnetic stirring reactor at a temperature of 5~95℃ for 10~40min to prepare an emulsification system for standby, stirring speed=800~2500rpm ;

[0104] b. Preparation of the initiation system: Weigh the components of the initiation system in parts by weight of each component, mix the initiator and distilled water to prepare the initiation system for use;

[0105] c. Preparation of the buffer system: Weigh the components of the buffer system in parts by weight of each comp...

Embodiment 1

[0112] A water-based hollow fluorine-silicon composite water-repellent and breathable fabric finishing agent, the effective component of which is a hollow fluorine-containing polyacrylate-siloxane composite polymer shell, the structure of the polymer shell is as shown in formula (I) Show:

[0113] In the formula (I), * represents a polymerization reaction site; R S Indicates the structural unit of the polymer shell, m=1, n=100, x=50, y=50, z=50;

[0114] R f Represents a fluorine-containing monomer, and its structural formula is shown in formula (II):

[0115] In the formula (Ⅱ), R 1 Is H; a 1 =0; b=4;

[0116] R Si Represents organosilicon monomer, and its structural formula is shown in formula (Ⅲ):

[0117] In the formula (Ⅲ), R 1 Et; R 2 Is halogen; a 2 =0;

[0118] R U It means other functional monomer, which is α-hydroxyethyl methacrylate; the specific function of the other functional monomer is a chain extender, end capping agent or diameter extender.

[0119] The R f , R Si , R U ...

Embodiment 2

[0145] A water-based hollow fluorine-silicon composite water-repellent and breathable fabric finishing agent, the effective component of which is a hollow fluorine-containing polyacrylate-siloxane composite polymer shell, the structure of the polymer shell is as shown in formula (I) Show:

[0146] In the formula (I), * represents a polymerization reaction site; R S Represents the structural unit of the polymer shell, m=50, n=50, x=1, y=100, z=1;

[0147] R f Represents a fluorine-containing monomer, and its structural formula is shown in formula (II):

[0148] In the formula (Ⅱ), R 1 Is Me; a 1 =3; b=3;

[0149] R Si Represents organosilicon monomer, and its structural formula is shown in formula (Ⅲ):

[0150] In the formula (Ⅲ), R 1 Is Me; R 2 Is Me; a 2 = 5;

[0151] R U It means other functional monomer, which is α-hydroxypropyl methacrylate; the specific function of the other functional monomer is a chain extender, end capping agent or diameter extender.

[0152] The R f , R Si , R U...

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Abstract

The invention discloses a water-based hollow fluorine-silicon composite water-repellent and breathable textile finishing agent and a preparation method. A hollow fluorine-containing polyacrylate-siloxane composite polymer shell serves as the effective component of the textile finishing agent. The preparation method of the textile finishing agent mainly includes the three stages of firstly, preparation of an emulsification system; secondly, preparation of shell-core emulsion, wherein fluorine-containing monomers, acrylate monomers, unsaturated carboxylate monomers, organosilicone monomers and other functional monomers serve as raw materials, and the shell-core emulsion is obtained through a shell-core emulsion polymerization method under the action of an initiator, a buffering agent, an emulsifying agent and a defoaming agent; thirdly, hollowness treatment. According to the textile finishing agent, organosilicone monomers are introduced in a free radical polymerization mode to achieve crosslinking synergism with fluorine-containing monomers while the good water repellency of C-F long-chain polymer emulsion is maintained, and the water resistance, wash fastness and softness of textiles are improved; besides, due to the unique hollow structure of the textile finishing agent, the breathability is improved, the light scattering performance is also improved, and the cost is reduced.

Description

Technical field [0001] The invention relates to a fabric finishing agent, in particular to a water-based hollow fluorosilicon composite water-repellent and breathable fabric finishing agent and a preparation method. Background technique [0002] With the development of science and technology, people's consumption levels and consumption concepts have changed accordingly. In terms of fabric selection, the wearability of simply repelling cold and keeping warm can no longer meet the needs of people's life and production. It is water-repellent, oil-repellent, breathable, washable, anti-static, weather-resistant, flame-retardant, lightweight, thinning, and other functions. Chemical has become a research hotspot in the textile finishing industry. Fabric finishing agent is a kind of finishing agent that increases the softness, water repellency, breathability and other special properties of the fabric while maintaining the original wearability. [0003] Over the years, scientific research...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M15/356C08F220/14C08F220/18C08F214/18C08F230/08
CPCC08F220/14C08F220/18C08F220/1804D06M15/356D06M2200/11D06M2200/12C08F214/18C08F230/08
Inventor 刘明华白生杰傅福金刘以凡
Owner FUZHOU UNIV
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