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A waterproof and moisture-permeable two-component membrane for detergent and water resistance and its preparation method

A waterproof, moisture-permeable, detergent-resistant technology, applied in the direction of chemical instruments and methods, applications, flat products, etc., to achieve the effect of light weight

Active Publication Date: 2016-06-01
HUZHOU SENNUO FLUORINE MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] With the improvement of people's living standards, people's requirements for quality of life are getting higher and higher. For example, people's requirements for sports and leisure clothing are not only comfortable to wear, light in weight, but also breathable, windproof, waterproof, UV-resistant, Moisture permeability and other functions, but the products on the existing market cannot achieve the above functions

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Example 1, a waterproof and moisture-permeable two-component film for washing with detergent and its preparation method, the steps are as follows:

[0021] (1) Mixing: fully mix the polytetrafluoroethylene dispersion resin powder labeled F106 produced by Daikin Chemicals Co., Ltd. of Japan and the ISOPARK hydrocarbon extrusion aid of Exxon Mobil Company in proportion, and mix them at 60 ° C. After standing for 24 hours, a mass formed.

[0022] (2) Billet making: pre-press the material into a cylindrical billet of Φ120mm at 50°C.

[0023] (3) Pushing: Place the cylindrical billet on a pushing machine, and push it into a round bar of Φ18mm at 55°C.

[0024] (4) Calendering: place the round bar on a calender, and calender it at 50°C to form an oil-containing base belt with a thickness of 150um and a width of 25cm.

[0025] (5) Degreasing treatment: Degrease the oil-containing base tape at 270°C, remove the extrusion aid, and obtain a degreased base tape.

[0026] (6) Lo...

Embodiment 2

[0030] Example 2, a waterproof and moisture-permeable two-component membrane that is resistant to washing with detergent and its preparation method, the steps are as follows:

[0031] (1) Mixing: fully mix the polytetrafluoroethylene dispersion resin powder labeled F106 produced by Daikin Chemicals Co., Ltd. of Japan and the ISOPARK hydrocarbon extrusion aid of Exxon Mobil Company in proportion, and mix them at 70 ° C. After standing for 24 hours, a mass formed.

[0032] (2) Billet making: pre-press the material into a cylindrical billet of Φ120mm at 55°C.

[0033] (3) Pushing: Place the cylindrical billet on a pushing machine and push it into a round bar of Φ29mm at 60°C.

[0034] (4) Calendering: place the round bar on a calender, and calender it at 50°C to form an oil-containing base belt with a thickness of 180um and a width of 35cm.

[0035] (5) Degreasing treatment: Degrease the oil-containing base tape at 280°C, remove the extrusion aid, and obtain a degreased base ta...

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Abstract

The invention relates to a detergent and washing resistant, waterproof and moisture-permeable bi-component film and a preparation method thereof. The preparation method comprises the steps of mixing, blank formation, pushing, degreasing treatment, drawing longitudinally, drawing in a two-way arc-shaped manner, sintering solidification after drawing transversely, and laminating by adopting a release paper transfer method. The bi-component film prepared by the steps is applied to the fields such as functional garments, special equipment clothes, down garments, recreational sports garments, shoemaking and the like, wherein a polytetrafluoroethylene microporous film has the thickness of 20-50 microns and porosity of more than 80%, and the bi-component film has the thickness of 50-80 microns, has the light weight, has functions of keeping out the wind, perspiring, water proofness, moisture permeability, ultraviolet ray resistance, corrosion resistance, warming and the like, and is suitable for diversified products made of functional materials in the fields of sports, leisure, women and children.

Description

Technical field: [0001] The invention relates to the field of membranes, and more specifically relates to a waterproof and moisture-permeable two-component membrane that is resistant to washing with detergents and a preparation method thereof. Background technique: [0002] Expanded PTFE microporous membrane is a porous material formed by multi-directional stretching (i.e. expansion treatment), calendering, heat treatment and other processes. It is a flexible and elastic microporous material. When the porosity is high, it can have Water permeable function, uniform pore size distribution, sterilizing and filtering membrane, the surface of the material is smooth and soft, but under the scanning electron microscope, it can be seen that there are a large number of micropores of 0.4 μm to 1 μm inside the material, and its porosity can account for 80%. . This material has the following characteristics: non-hazardous, light in weight, corrosion-resistant, resistant to environmenta...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29D7/01B32B37/06C08J9/28
Inventor 王中华
Owner HUZHOU SENNUO FLUORINE MATERIAL TECH
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