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A water-based hollow fluorine-silicon composite water-repellent and breathable fabric finishing agent and its preparation method

A breathable fabric and finishing agent technology, which is applied in fiber treatment, textiles and papermaking, and liquid-repellent fibers, etc., can solve problems such as cost reduction, achieve the effects of reducing usage, reducing processing costs, and enhancing moisture permeability

Active Publication Date: 2017-11-24
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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  • A water-based hollow fluorine-silicon composite water-repellent and breathable fabric finishing agent and its preparation method
  • A water-based hollow fluorine-silicon composite water-repellent and breathable fabric finishing agent and its preparation method
  • A water-based hollow fluorine-silicon composite water-repellent and breathable fabric finishing agent and its preparation method

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preparation example Construction

[0102] A method for preparing a water-based hollow fluorine-silicon composite water-repellent and breathable fabric finishing agent, comprising the following steps:

[0103] a. Preparation of the emulsification system: Weigh each component of the emulsification system according to the weight of each component, and mix sorbitan fatty acid ester (Span80), alkylphenol polyoxyethylene ether (OP-10), dodecyl Alkyl sodium sulfate (SDS), fatty alcohol polyoxyethylene ether (AES) and distilled water are stirred in a magnetic stirring reactor at a temperature of 5 to 95°C for 10 to 40 minutes according to the ratio to prepare an emulsification system for use, and the stirring speed is 800 to 2500rpm ;

[0104] b. Preparation of the initiation system: take each component of the initiation system by weight of each component, mix the initiator and distilled water, and prepare the initiation system for subsequent use;

[0105] c. Preparation of the buffer system: Weigh each component of t...

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 polymeric polymer shell, and the structure of the polymer shell is as shown in formula (I) Show:

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

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

[0115] R in the formula (II) 1 for H; a 1 = 0; b1 = 4;

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

[0117] R in the formula (Ⅲ) 1 for Et; R 2 is halogen; a 2 = 0;

[0118] R U Indicates other functional monomers, which are α-hydroxyethyl methacrylate; the specific functions of the other functional monomers are chain extenders, end-capping agents or diameter ...

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 polymeric polymer shell, and the structure of the polymer shell is as shown in formula (I) Show:

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

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

[0148] R in the formula (II) 1 for Me; a 1 = 3; b1 = 3;

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

[0150] R in the formula (Ⅲ) 1 for Me; R 2 for Me; a 2 = 5;

[0151] R U Indicates other functional monomers, which are α-hydroxypropyl methacrylate; the specific functions of the other functional monomers are chain extenders, end-capping agents or diameter exp...

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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 fluorine-silicon composite water-repellent and breathable fabric finishing agent and a preparation method thereof. Background technique [0002] With the development of science and technology, people's consumption levels and consumption concepts have changed accordingly. Specific to the selection of fabrics, the simple wearing performance of cold repellent and warmth can no longer meet the needs of people's life and production, water repellency, oil repellency, breathable, washable, antistatic, weather resistance, flame retardant, lightweight, thinning and other multi-functional It has become a research hotspot in the fabric finishing industry. Fabric finishing agent is a kind of finishing agent that can increase the special properties of fabrics such as high softness, water repellency and breathability while maintaining the original wearing performance. [0003]...

Claims

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Application Information

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Patent Type & Authority Patents(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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