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a waterproof fabric

A waterproof fabric and fabric technology, applied in synthetic resin layered products, chemical instruments and methods, layered products, etc., can solve the problems that the water repellent effect cannot reach the protective clothing, increase the wet weight of the fabric, etc., and achieve excellent waterproof , Special flexibility, the effect of increasing the silicon content

Active Publication Date: 2020-11-27
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, composed of 26 parts of nano SiO 2 Sol, 96 parts of waterborne 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 are prepared by emulsion polymerization to make;

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

[0052] The preparation method includes the following steps:

[0053] 1. Nano SiO 2 Preparation method of sol

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

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

[0056] In ...

Embodiment 2

[0064] A kind of nano SiO 2 Modified polyurethane emulsion, in parts by mass, composed of 21 parts of nano SiO 2 Sol, 85 parts of waterborne 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 parts of initiator, 340 parts of water are prepared by emulsion polymerization to make;

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

[0066] The preparation method includes the following steps:

[0067] 1. Nano SiO 2 Preparation method of sol

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

[0069] 2. Preparation of waterborne polyurethane prepolymer emulsion:

[0070] ...

Embodiment 3

[0078] A kind of nano SiO 2 Modified polyurethane emulsion, in parts by mass, composed of 17 parts of nano SiO 2 Sol, 72 parts of waterborne 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 are prepared by emulsion polymerization to make;

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

[0080] The preparation method includes the following steps:

[0081] 1. Nano SiO 2 Preparation method of sol

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

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

[0084] In ...

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 formed by finishing textile fabrics with a waterproof emulsion, belonging 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 functions of sheltering the body to the functions of beauty, comfort, fashion, protection, etc. People's consumption concepts have gradually developed from practical to health, environmental protection, and multi-function. Various intelligent and functional textiles have received widespread attention And development, waterproof and moisture-permeable textiles are one example. [0003] Laminated fabric is a microporous film or hydrophilic non-porous film with waterproof and moisture-permeable function or a composite film of the above two films, using a special ad...

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 Patents(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