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Preparation method for highly water-pressure-resistant, highly air permeable and highly wet permeable garment film

A water pressure-resistant and highly breathable technology, which is used in outdoor waterproofing, footwear, military uniforms, breathable and moisture-permeable clothing, and can solve problems such as poor breathability and moisture-permeability, and low water pressure resistance.

Active Publication Date: 2017-02-01
北京佳膜环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention is to overcome the defects of low water pressure resistance, poor air permeability and moisture permeability of most of the polytetrafluoroethylene clothing films produced by the existing technology, and provide a high water pressure resistance, high air permeability and high moisture permeability clothing film The preparation method of the clothing film can be applied to outdoor waterproof, breathable and moisture-permeable clothing, shoes, military uniforms and other fields

Method used

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  • Preparation method for highly water-pressure-resistant, highly air permeable and highly wet permeable garment film
  • Preparation method for highly water-pressure-resistant, highly air permeable and highly wet permeable garment film
  • Preparation method for highly water-pressure-resistant, highly air permeable and highly wet permeable garment film

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Embodiment 1

[0031] A method for preparing a garment film with high water pressure resistance, high air permeability and high moisture permeability, comprising the steps of:

[0032] 1. Mix the dispersed polytetrafluoroethylene resin powder, solvent and surfactant according to a certain mass ratio (100:25:0.25). Tetrafluoroethylene resin powder, then mix evenly;

[0033] (1) The particle size of dispersed polytetrafluoroethylene resin powder is 0.1-0.2 μm, the molecular weight is above 8 million, and the crystallinity is ≥98%;

[0034] (2) The solvent is a mixture of isoparaffins and normal alkanes, wherein the content of isoparaffins is 90wt%, the content of normal alkanes is 10wt%, the isoparaffins are isooctane-like, and the normal alkanes are n-pentane;

[0035] (3) The surfactant is toluene;

[0036] 2. Stirring: Stir the mixture obtained in step 1 at a constant temperature of 40°C for 0.5 hours at a constant speed to make it fully mixed;

[0037] 3. Maturation: Put the mixed mater...

Embodiment 2

[0048] A method for preparing a garment film with high water pressure resistance, high air permeability and high moisture permeability, comprising the steps of:

[0049] 1. Mix the dispersed PTFE resin powder, solvent, and surfactant in a certain mass ratio (100:26:0.08). The order of addition is: first add the surfactant to the PTFE, and then mix well Add to the solvent and mix well;

[0050] (1) The particle size of dispersed polytetrafluoroethylene resin powder is 0.1-0.2 μm, the molecular weight is above 8 million, and the crystallinity is ≥98%;

[0051] (2) The solvent is a mixture of isoparaffin and normal alkane, wherein the content of isoparaffin is 98%, the content of normal alkane is 2%, the isohexadecane is isohexadecane, and n-octane is the normal alkane;

[0052] (3) The surfactant is ethylene glycol;

[0053] 2. Stirring: Stir the mixture in step 1 at a constant temperature of 38°C for 0.5 hours at a constant speed to make it fully mixed;

[0054] 3. Maturatio...

Embodiment 3

[0065] A method for preparing a garment film with high water pressure resistance, high air permeability and high moisture permeability, comprising the steps of:

[0066] 1. Mix the dispersed polytetrafluoroethylene resin powder, solvent and surfactant according to a certain mass ratio (100:30:0.15). The order of addition is: first add the surfactant to the polytetrafluoroethylene, after mixing Add to the solvent and mix well;

[0067] (1) The particle size of dispersed polytetrafluoroethylene resin powder is 0.1-0.2 μm, the molecular weight is 8 million-10 million, and the crystallinity is ≥98%.

[0068] (2) The solvent is a mixture of isoparaffin and normal paraffin, wherein the content of isoparaffin is 95%, and the content of normal paraffin is 5%. The isoparaffin is iso-eicosane, and the normal paraffin is n-dodecane ;

[0069] (3) The surfactant is a mixture of polyene succinimide and fluorosurfactant, each with a mass percentage of 50%;

[0070] 2. Stirring: Stir the ...

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Abstract

The invention discloses a preparation method for a highly water-pressure-resistant, highly air permeable and highly wet permeable garment film. The preparation method comprises the following steps of: mixing dispersed polytetrafluoroethylene resin powder with a solvent and a surfactant in a certain mass ratio; and performing maturing, blank-making, extrusion molding, calendering, one-time drawing, desolventizing, intermediate-temperature secondary longitudinal drawing, low-temperature secondary transverse drawing, high-temperature thermal treatment and sizing and the like. The method is simple in batch production process, and controllable and environmental-friendly in production process, quality is stable and appearance is good. The film has the characteristics of being highly water-pressure-resistant, great in air and wet permeability, washable, stable in chemical property and the like. The film is particularly suitable for the field of outdoor waterproofness, air permeable and wet permeable garments, shoes, military uniforms and the like.

Description

technical field [0001] The invention relates to the technical fields of outdoor waterproof, air-permeable and moisture-permeable clothing, shoes, military uniforms, etc., and in particular relates to a preparation method of a high-water-pressure-resistant, highly-breathable, high-moisture-permeable clothing film. 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. [0003] Textiles have extended from the basic functions of covering the body to keep out the cold to the functions of beauty, comfort, fashion, and protection. Similarly, outdoor clothing has extended from the basic functions of waterproof, windproof, and cold protection to waterproof, breathable, moisture-permeable, and windproof. People's consumption The concept is also gradually developing from simple application to health care, environmental protection, ...

Claims

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Application Information

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IPC IPC(8): B29C69/02B29K27/18B29L7/00
CPCB29C48/0011B29C48/0018B29K2027/18B29L2007/00
Inventor 朱红晨郑海军
Owner 北京佳膜环保科技有限公司
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