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Super-strong waterproof multifunctional composite fabric and manufacturing method thereof

A technology of composite fabrics and production methods, applied in the field of textile fabrics, can solve problems such as limited waterproof ability, inability to solve wearing comfort, and inability to satisfy multi-functionality, comfort, high strength, and softness at the same time, and achieve good moisture permeability , good weather resistance, super waterproof effect

Pending Publication Date: 2021-05-28
际华集团股份有限公司系统工程中心
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the coating technology cannot solve the problem of wearing comfort, the functional raincoat fabrics are now made of composite technology, and the PTFE film is used to solve the problem of high water pressure resistance and high moisture permeability, which can be windproof and breathable
However, the composite fabric obtained by the existing composite process has limited waterproof ability
At the same time, the multi-functionality and comfort of special clothing such as raincoats and snow jackets require composite fabrics to have sufficient strength to withstand the test of various harsh environments. The composite fabrics in the prior art cannot simultaneously satisfy multi-function, comfort and high performance. Requirements for strength, softness, and good "accompaniment" when wearing and exercising

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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  • Super-strong waterproof multifunctional composite fabric and manufacturing method thereof
  • Super-strong waterproof multifunctional composite fabric and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0074] As an optional embodiment, the preparation method of polyurethane acrylate prepolymer comprises:

[0075] Vacuumize the reaction kettle to remove moisture, add diisocyanate, heat up, and stir;

[0076] The temperature in the reaction kettle rises to 50-150°C, and polyol is passed into the kettle, and the reaction is carried out for 10-180 minutes; the polyol is polyether-containing polyol or polyester polyol, and the molar ratio of diisocyanate to polyol is 2:1~8:1;

[0077] Add hydroxyalkyl acrylate or hydroxyalkyl methacrylate into the reaction kettle to completely react with unreacted isocyanate by hydroxyalkyl groups. The reaction temperature is maintained at 50-150°C, and the reaction is carried out for 10-180 minutes. The urethane acrylate prepolymer can be obtained; wherein, the molar number of added hydroxyalkyl acrylate or hydroxyalkyl methacrylate is greater than or equal to the molar number of unreacted isocyanate.

[0078] As an optional embodiment, in com...

Embodiment 1

[0101] High molecular weight polytetrafluoroethylene copolymer dispersion resin

[0102] It is prepared from tetrafluoroethylene and perfluoroethyl vinyl ether as polymerization monomers and ammonium sulfate as initiator. The preparation method includes: firstly add 500L of deionized water, 20Kg of high-purity paraffin wax with a melting point of 50°C to 85°C, and 180g of perfluorooctanoic acid ammonium in a horizontal high-pressure reactor with a volume of about 1,000 liters, and vacuum the inside of the kettle to exhaust oxygen. Heat up and stir until the oxygen content is less than 20ppm; when the temperature in the kettle rises to about 70°C, feed tetrafluoroethylene gas with a purity greater than 99.999% into the kettle to make the pressure in the kettle reach about 2.2MPa; then put 300g of tetrafluoroethylene gas with a purity greater than 98 % perfluoroethyl vinyl ether C 2 f 5 -OCF=CF 2 As a comonomer, it is added to the reactor at a rate of 10g / min, and at the same...

Embodiment 2

[0108] Referring to the method of Example 1, component A2 was prepared, wherein the ratio of fluorine-containing ion exchange resin to high molecular weight polytetrafluoroethylene copolymer was 5:100.

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Abstract

The utility model discloses a super-strong waterproof multifunctional composite fabric which comprises a nylon 66 fabric, a monomolecular polytetrafluoroethylene film arranged to be attached to the nylon 66 fabric, and a thin nylon knitted fabric attached to the polytetrafluoroethylene film. The nylon 66 fabric and the monomolecular polytetrafluoroethylene film are bonded through a first polyurethane adhesive film, one side, in contact with the nylon 66 fabric, of the first polyurethane adhesive film partially permeates into the nylon 66 fabric, and one side, in contact with the monomolecular polytetrafluoroethylene film, of the first polyurethane adhesive film partially permeates into the monomolecular polytetrafluoroethylene film; the monomolecular polytetrafluoroethylene film and the thin nylon knitted fabric are bonded through a second polyurethane adhesive film, and the side, making contact with the monomolecular polytetrafluoroethylene film, of the second polyurethane adhesive film partially permeates into the monomolecular polytetrafluoroethylene film. One side, in contact with the thin nylon knitted fabric, of the second polyurethane adhesive film partially permeates into the thin nylon knitted fabric. The composite fabric is obtained through super-strong water sprinkling process treatment.

Description

technical field [0001] The application belongs to the technical field of textile fabrics, in particular to the technology of multifunctional textile fabrics, in particular to a super-strong waterproof multifunctional composite fabric and a manufacturing method thereof. Background technique [0002] At present, rain and snow clothes are made of hemp stalk core ultrafine powder modified polyurethane coating material, which has limited moisture permeability and is basically not breathable. It is stuffy to wear in summer, and the polyester fabric becomes hard at -10°C in winter, resulting in poor wearing comfort. Polyurethane coating is easy to age and not resistant to stock. [0003] Usually the basic function of raincoats is to prevent rain, but with the development of society and the specialization and integration of social work division, raincoats with a single rainproof function can no longer meet the actual needs, and people's needs for raincoats continue to add many appea...

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): B32B27/02B32B27/34B32B7/14B32B27/32B32B27/12B32B27/08B32B37/12B32B37/06B32B38/16A41D31/102
CPCB32B5/026B32B7/14B32B27/322B32B27/12B32B27/08B32B37/1292B32B37/06B32B38/164A41D31/102B32B2262/0261B32B2307/7265B32B2307/73B32B2307/552B32B2250/24
Inventor 肖文华王爽智赖军吴慧生杨颖赵艳娇沈红霞陈玉林张长健李大庆李茂明王庆春葛爱雄刘壮洪任然然
Owner 际华集团股份有限公司系统工程中心