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Preparation method of windproof, breathable and moisture-permeable coating

A windproof, breathable and coating technology, applied in the field of laminated fabric manufacturing, can solve the problems of low surface tension, low peeling strength, and difficulty in fusion of PTFE, so as to reduce hollow cracks, improve windproof and breathability, and enhance usability. Effect

Inactive Publication Date: 2018-01-16
广东华矿新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the surface tension of PTFE is low, and it is difficult to combine with other materials, which makes it easy to delaminate between PTFE film and polyurethane during use.
The polytetrafluoroethylene film and polyurethane prepared by the above method are difficult to fuse, the peel strength between them is low, and it is easy to delaminate

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] A method for preparing a windproof and breathable coating, the main raw materials are: 30 parts by weight of polyether type hydrolysis-resistant polyurethane resin, 30 parts of vinyl polyorganosiloxane, 10 parts of hydrogen-containing silicone oil, 5 parts of expanded vermiculite, and thermally expanded microcapsules 1. Catalyst chloroplatinic acid 0.5, silazane 0.4, sodium lauryl sulfate 1.5, vegetable glue 1, wear-resistant agent 0.5, barium sulfate powder 43, lignocellulose 6, silane coupling agent 3.5, diatomite 1 , inhibitor 10, nano silicon dioxide 3, titanium dioxide 5, ultraviolet light stabilizer 3 and ethanol 25; the thermally expandable microcapsules are obtained by heating and expanding a volatile substance in a spherical shell of a thermoplastic resin, wherein, The components of the spherical shell include one or more of polyethylene, polystyrene, polybutadiene, polyvinyl acetate, neoprene and other vinyl low polymer copolymers, and the thermally expandable ...

Embodiment 2

[0019] A method for preparing a windproof and breathable coating, the main raw materials are: polyether type hydrolysis-resistant polyurethane resin 40, vinyl polyorganosiloxane 45, hydrogen-containing silicone oil 14, expanded vermiculite 8, thermally expandable microcapsules 10. Catalyst chloroplatinic acid 1, silazane 0.5, sodium lauryl sulfate 1.6, vegetable gum 2, wear-resistant agent 0.8, barium sulfate powder 45, lignocellulose 8, silane coupling agent 4.5, diatomite 3 , inhibitor 12, nano-silica 5, titanium dioxide 7, ultraviolet light stabilizer 10 and ethanol 30; the thermally expandable microcapsules are obtained by heating and expanding a volatile substance in a spherical shell of a thermoplastic resin, wherein, The components of the spherical shell include one or more of polyethylene, polystyrene, polybutadiene, polyvinyl acetate, neoprene and other vinyl low polymer copolymers, and the thermally expandable microcapsules Medium-volatile substances include one or m...

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Abstract

The invention relates to a preparation method of a breathable wind-proof moisture-permeable coating. The preparation method of the coating comprises the following two main steps: (1) mixing vinyl polyorganosiloxane, nano silicon dioxide, silazane and alcohol for 1-2 hours in a high-shearing mixer according to a ratio, treating in vacuum at 200 DEG C, then cooling to room temperature to obtain an uniform mixture, adding thermal expansion microcapsules and chloroplatinic acid as a catalyst, and then filtering to obtain a component A; and (2) adding lignocelluloses into a reaction kettle according to the ratio, then adding barium sulfate powder and diatomite, stirring and mixing uniformly, firstly carrying out ultrasonic dispersion and then carrying out ball-milling dispersion, then adding other rest raw materials except the component A, uniformly stirring to obtain a component B, mixing the component A with the component B, and carrying out ultrasonic dispersion and ball-milling dispersion to prepare the moisture-proof anti-aging coating. When the prepared coating is coated on the surface of a fabric, the fabric and a polyurethane composite film are not layered; a polyurethane film layer has excellent wind-proof breathable moisture-permeable effects; meanwhile, the fabric has good hand feeling.

Description

technical field [0001] The invention belongs to the field of laminated fabric manufacturing, and in particular relates to a preparation method of a windproof, breathable and moisture-permeable coating. Background technique [0002] The windproof, breathable and moisture-permeable laminated fabric of PTFE microporous film after two-way stretching is a high-tech product integrating the functions of windproof, breathable, moisture-permeable, windproof and chemical-proof. The laminated fabric is widely used in outdoor sportswear , casual wear, windproof, breathable and moisture-permeable shoes and other fields. The microstructure of the film is composed of "fibrils-nodes". The thickness of the film is 5-80 microns, the pore size is 0.1-5 microns, there are about 9 billion micropores per square inch, and the opening rate is as high as 80%. Due to the large specific surface area of ​​PTFE film, it is easy to absorb dust, salt in human sweat, grease, cosmetics and other substances...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06M15/572D06M15/643D06M11/79D06M11/55D06M11/46D06M15/17D06M23/12
CPCC08K2003/2241C08K2201/011C08K2201/014C08L2205/025C08L2205/035C09D175/08C09D183/04C08L83/04C08L97/02C08K13/06C08K7/26C08K3/36C08K3/22C08K9/10C08K5/01C08L75/08
Inventor 刘丰高
Owner 广东华矿新材料有限公司
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