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Waterproof and breathable membrane, waterproof and breathable fabric, and method for manufacturing the same

A moisture-permeable waterproof membrane, a technology for making it, applied in other household appliances, chemical instruments and methods, lamination, etc.

Pending Publication Date: 2021-10-26
NANYA PLASTICS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] According to the above, there is currently no better moisture-permeable waterproof membrane on the market, which can be applied to ordinary fiber cloth under the condition that gas water molecules can pass through and liquid water molecules can pass through, and it also has the characteristics of direct recycling

Method used

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  • Waterproof and breathable membrane, waterproof and breathable fabric, and method for manufacturing the same
  • Waterproof and breathable membrane, waterproof and breathable fabric, and method for manufacturing the same
  • Waterproof and breathable membrane, waterproof and breathable fabric, and method for manufacturing the same

Examples

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Comparison scheme
Effect test

no. 1 example

[0026] see figure 1 as shown, figure 1 It is a three-dimensional schematic view of the moisture-permeable waterproof membrane according to the first embodiment of the present invention. The moisture-permeable waterproof membrane 1 of the present invention may be a single-layer structure, and a plurality of micropores 100 are formed on the moisture-permeable waterproof membrane 1 to serve as passages for removing moisture. In this embodiment, the dimensions of the plurality of micropores 100 are all smaller than 500 nanometers. Since the micropores 100 formed on the moisture-permeable waterproof membrane 1 are small in size, moisture can permeate from one side of the moisture-permeable waterproof membrane 1 to the other side by the principle of capillary phenomenon, so as to discharge moisture.

[0027] Furthermore, the plurality of micropores 100 on the moisture-permeable waterproof membrane 1 communicate with the two opposite surfaces of the moisture-permeable waterproof me...

no. 2 example

[0039] see image 3 as shown, image 3 It is a schematic side view of the moisture-permeable waterproof membrane according to the second embodiment of the present invention. The moisture-permeable waterproof membrane 1 of the present invention can also be a three-layer structure. In the second embodiment, the moisture-permeable waterproof membrane 1 includes an intermediate layer 10, a first surface layer 20 and a second surface layer 30, and the intermediate layer 10 is set Between the first surface layer 20 and the second surface layer 30 . Moreover, the middle layer 10 is formed from a middle layer material, the first surface layer 20 is formed from a first material, and the second surface layer 30 is formed from a second material.

[0040] The moisture-permeable waterproof membrane 1 of the second embodiment is also formed with a plurality of micropores 100. The structure of the micropores 100 of the second embodiment is similar to the structure of the micropores 100 of ...

no. 3 example

[0058] see Figure 4 as shown, Figure 4 It is a schematic side view of the moisture-permeable waterproof fabric according to the third embodiment of the present invention. The moisture-permeable waterproof fabric 2 of the present invention includes the aforementioned moisture-permeable waterproof membrane 1 and a fiber cloth 40, and the moisture-permeable waterproof membrane 1 is arranged on the fiber cloth 40, so that a moisture-permeable waterproof fabric having both moisture-permeable and waterproof effects can be obtained. fabric2.

[0059] In order to make the fiber cloth 40 have a moisture-permeable and waterproof effect, the moisture-permeable waterproof membrane 1 in the third embodiment may be disposed on the fiber cloth 40 by lamination. The method of bonding the film may be to attach the prepared moisture-permeable waterproof membrane 1 to the fiber cloth 40 through adhesive, and completely cover the fiber cloth 40 to complete the preparation of the moisture-perm...

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Abstract

A breathable and waterproof membrane, a breathable and waterproof fabric, and a method for manufacturing the same are provided. The breathable and waterproof membrane is formed by stretching a polyolefin material. The breathable and waterproof membrane has a density ranging from 0.6 g / cm<3> to 0.8 g / cm<3>. A plurality of micropores are formed on the breathable and waterproof membrane, and the plurality of micropores each has a size smaller than 500 nm. The polyolefin material includes: 60 wt % to 80 wt % of first polypropylene resin, 15 wt % to 30 wt % of second polypropylene resin, and 1 wt % to 10 wt % of inorganic particles. The second polypropylene resin is modified polypropylene resin having a hydrophilic group. The second polypropylene resin is different from the first polypropylene resin.

Description

technical field [0001] The invention relates to a moisture-permeable waterproof membrane, a moisture-permeable waterproof fabric and a preparation method thereof, in particular to a moisture-permeable waterproof membrane made of polyolefin material, a moisture-permeable waterproof fabric and a preparation method thereof. Background technique [0002] A moisture-permeable waterproof membrane is a membrane that allows water vapor to pass through, but blocks the passage of liquid water molecules. Water vapor is a water molecule in a gaseous state. Due to its very small size, it can penetrate from one side of the moisture-permeable waterproof membrane to the other side through the principle of capillarity, thereby achieving the effect of water vapor (moisture) permeability. However, once water vapor condenses into liquid water molecules, under the joint action of surface tension and cohesion, the liquid water molecules tend to gather to form a larger molecular cluster, which can...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J5/18C08L23/12C08L23/14C08L53/00C08K3/013C08K3/36C08K3/30C08K3/26C08K3/22C08K3/34C08K7/26B32B27/32B32B27/06B32B27/12B32B27/02B32B3/26
CPCC08J5/18B32B27/32B32B27/08B32B27/12B32B5/02B32B3/26B32B2262/0253B32B2307/7265B32B2307/724C08J2323/12C08J2423/12C08J2423/14C08J2453/00C08K3/013C08K3/36C08K2003/3045C08K2003/265C08K2003/2241C08K3/34C08K3/346C08K7/26C08K2003/2227C08K2003/3036B32B37/1284B29D99/005B32B7/12B32B5/024B32B2307/558B32B27/34B32B2307/732B32B2307/72B32B27/205B32B2437/00B32B2038/0028B32B27/20B32B37/156B32B38/0012B32B3/266B32B2270/00B32B2264/10
Inventor 廖德超袁敬尧郑文瑞王志锋
Owner NANYA PLASTICS CORP