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Waterproof fabric

A technology of waterproof fabrics and fabrics, which is applied in the direction of layered products, synthetic resin layered products, textiles and papermaking, etc. It can solve the problems that the water repellency effect cannot reach the protective clothing, increase the wet weight of fabrics, etc., and achieve excellent waterproof, Special flexibility, enhanced waterproof effect

Active Publication Date: 2019-05-17
浙江东进新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The fabric layer of waterproof and moisture-permeable laminated fabrics adopts fabrics with a certain water-repellent effect, but its water-repellent effect is far from meeting the requirements of protective clothing, and its own hygroscopicity will increase the wet weight of the fabric. Water-repellent finishing of the face layer of the fabric

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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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] A kind of nano-SiO 2 Modified polyurethane emulsion, in parts by mass, consists of 26 parts of nano-SiO 2 Sol, 96 parts of water-based polyurethane prepolymer emulsion, 18 parts of vinyl silicone oil, 15 parts of polymerizable silicone monomer (as shown in formula 1), 15 parts of emulsifier, 1 part of initiator, 370 parts of water through emulsion polymerization become;

[0051] (H 3 c) 3 Si-O-CH 2 CH 2 NH-CH 2 CH=CH 2 Formula 1

[0052] The preparation method comprises the following steps:

[0053] 1. Nano SiO 2 Sol preparation method

[0054] 25 parts of γ-methacryloxypropyl trimethoxysilane (silane coupling agent KH-570), 3 parts of sodium lauryl sulfate, 4 parts of alkylphenol polyoxyethylene ether (OP-10) Add it into 300 parts of water, stir and disperse, then add 9 parts of ammonia water under stirring, and continue to stir for 4 hours to form nano-SiO containing C=C bonds. 2 Sol;

[0055] 2. Preparation of waterborne polyurethane prepolymer emulsion:...

Embodiment 2

[0064] A kind of nano-SiO 2 Modified polyurethane emulsion, in parts by mass, consists of 21 parts of nano-SiO 2 Sol, 85 parts of water-based polyurethane prepolymer emulsion, 15 parts of vinyl silicone oil, 12 parts of polymerizable silicone monomer (as shown in formula 1), 13 parts of emulsifier, 0.8 part of initiator, 340 parts of water through emulsion polymerization become;

[0065] (H 3 c) 3 Si-O-CH 2 CH 2 NH-CH 2 CH=CH 2 Formula 1

[0066] The preparation method comprises the following steps:

[0067] 1. Nano SiO 2 Sol preparation method

[0068] 25 parts of γ-methacryloxypropyl trimethoxysilane (silane coupling agent KH-570), 3 parts of sodium lauryl sulfate, 4 parts of alkylphenol polyoxyethylene ether (OP-10) Add it into 300 parts of water, stir and disperse, then add 9 parts of ammonia water under stirring, and continue to stir for 4 hours to form nano-SiO containing C=C bonds. 2 Sol;

[0069] 2. Preparation of waterborne polyurethane prepolymer emulsio...

Embodiment 3

[0078] A kind of nano-SiO 2 Modified polyurethane emulsion, in parts by mass, consists of 17 parts of nano-SiO 2 Sol, 72 parts of water-based polyurethane prepolymer emulsion, 12 parts of vinyl silicone oil, 9 parts of polymerizable silicone monomer (as shown in formula 1), 9 parts of emulsifier, 0.6 part of initiator, 290 parts of water through emulsion polymerization become;

[0079] (H 3 c) 3 Si-O-CH 2 CH 2 NH-CH 2 CH=CH 2 Formula 1

[0080] The preparation method comprises the following steps:

[0081] 1. Nano SiO 2 Sol preparation method

[0082] 25 parts of γ-methacryloxypropyl trimethoxysilane (silane coupling agent KH-570), 3 parts of sodium lauryl sulfate, 4 parts of alkylphenol polyoxyethylene ether (OP-10) Add it into 300 parts of water, stir and disperse, then add 9 parts of ammonia water under stirring, and continue to stir for 4 hours to form nano-SiO containing C=C bonds. 2 Sol;

[0083] 2. Preparation of waterborne polyurethane prepolymer emulsion:...

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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Abstract

The invention discloses waterproof fabric. The waterproof fabric comprises a fabric base material, a waterproof layer applied to the surface of the fabric base material and a functional thin film composited on the bottom surface of the fabric base material, wherein the waterproof layer comprises a thickening agent and a nano-SiO2 modified polyurethane emulsion, and the thickening agent accounts for 1%-2% of mass of the nano-SiO2 modified polyurethane emulsion; the thickening agent is added to the nano-SiO2 modified polyurethane emulsion, water-proof finish slurry is formed and applied to the surface of the fabric base material by coating equipment, and drying and baking are performed; the bottom surface of the fabric base material is coated with a binding agent and composited with the functional thin film, drying and baking are performed, and the waterproof fabric is obtained; the nano-SiO2 modified polyurethane emulsion is prepared from 17-26 parts of nano-SiO2 sol, 72-96 parts of a waterborne polyurethane prepolymer emulsion, 12-18 parts of vinyl silicone oil, 9-15 parts of polymerizable organosilicone monomers, 9-15 parts of an emulsifier, 0.6-1 part of an initiator and 290-370parts of water by emulsion polymerization.

Description

technical field [0001] The invention relates to a waterproof fabric, which is formed by finishing textile fabrics with waterproof emulsion, and belongs to the field of functional fabrics. Background technique [0002] With the development of science and technology, the progress of society and the improvement of living standards, people have higher and higher requirements for the quality of life. Textiles have extended from the basic function of covering the body to keep out the cold to functions such as beauty, comfort, fashion, and protection. People's consumption concepts have gradually shifted from practicality to health care, environmental protection, and multi-function. Various intelligent and functional textiles have attracted widespread attention. Waterproof and breathable textiles are one example. [0003] The laminated fabric is a microporous film with waterproof and moisture-permeable function or a hydrophilic non-porous film or a composite film of the above two f...

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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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/40B32B27/32B32B27/06D06M11/79D06M15/564D06M15/643
Inventor 陈明贤孙立新董洪波
Owner 浙江东进新材料有限公司