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Waterproof moisture-permeable polyurethane membrane and composite material and preparation method and application thereof

A waterproof and moisture-permeable membrane, waterproof and moisture-permeable technology, applied in building thermal insulation materials, chemical instruments and methods, roofing using flexible materials, etc., to achieve excellent waterproof and moisture-permeable functions, high-strength effects.

Active Publication Date: 2010-07-14
宁波曦昀高分子新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] So far, there is no waterproof and moisture-permeable polyurethane film made by the coating method, and the glass fiber mesh cloth as the reinforcement layer and the polyester non-woven fabric as the surface layer and the bottom layer are hot-pressed and composited to have a waterproof and moisture-permeable function. Related reports on high-strength four-layer composite materials

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] 100Kg of polyurethane (TPU 1180A, BASF, Germany) was dried and dehydrated with a double-cone rotary vacuum dryer (GZS type, Hangzhou Qianjiang Drying Equipment Co., Ltd.), the ultimate vacuum was ≤5Pa, the drying temperature was 120-140°C, and the time was 4 hours. Residual water content ≤ 20ppm;

[0034]Dry and dehydrate 90Kg of heavy calcium carbonate (particle size 3-5 μm, HT-1500, Zhejiang Changxing Dadi New Material Co., Ltd.) with a double-cone rotary vacuum dryer (GZS type, Hangzhou Qianjiang Drying Equipment Co., Ltd.), and the ultimate vacuum is ≤ 5Pa, drying temperature 140~160℃, time 4 hours, residual water content≤20ppm;

[0035] The above residual water content was measured with a differential pressure moisture analyzer (SF-1, Changzhou No. 2 Textile Instrument Factory).

[0036] Add 90Kg of the above-mentioned dried heavy calcium carbonate into a high-speed mixer (Zhangjiagang Wuhe Machinery Co., Ltd., WH-SRL-Z200 / 500 high-speed / low-speed mixing unit), mi...

Embodiment 2

[0039] Titanium dioxide (particle diameter 4~6 μm, R1931, Shanghai Yuejiang Titanium White Chemical Co., Ltd.) 90Kg after the method drying dehydration of Example 1 replaces the heavy calcium carbonate in Example 1, with coupling agent 3-mercaptopropyl Trimethoxysilane (KH-580, Nanjing Yudeheng Fine Chemical Co., Ltd.) 3kg replaces the coupling agent aluminate and titanate in Example 1, the remaining raw materials and parts by weight, drying and dehydration, mixing, granulation , coating and the process and conditions of preparing four-layer composite material are the same as in Example 1.

Embodiment 3

[0041] Replace the coupling agent aluminate and titanate in Example 1 with coupling agent 3-methacryloxypropyltrimethoxysilane (KH-570, Nanjing Yudeheng Fine Chemical Co., Ltd.), Replace the dispersant linear polysiloxane in Example 1 with dispersant ethylene-vinyl acetate copolymer (3342AC, Canada AT company) 2kg, all the other raw materials and used parts by weight, drying and dehydration, mixing, coating and preparation of four layers The technological process and conditions of the composite material are the same as in Example 1.

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Abstract

The invention relates to a waterproof moisture-permeable polyurethane membrane and a four-layer composite material as well as a preparation method thereof and application thereof in the building field, wherein the four-layer composite material takes a polyurethane membrane as a water proof moisture-permeable functional layer, fiberglass gridding cloth as a reinforced layer and a polyester spunbonded non-woven fabric as a fabric layer and a bottom layer. By the invention, the four-layer composite material with a waterproof moisture-permeable function and high strength is prepared by taking the fiberglass gridding cloth as the reinforced layer and the polyester spunbonded non-woven fabric as the fabric layer and the bottom layer and carrying out hot press and compounding while a waterproof moisture-permeable membrane is prepared from polyurethane, inorganic filler and a processing aid by using a film coating method. The composite material can be used as a waterproof moisture-permeable layer of a slope type roofing cover or used as dry-hanging type decoration of a building outer wall and a waterproof moisture-permeable lining layer inside a heat-insulating material.

Description

technical field [0001] The present invention relates to a waterproof and moisture-permeable polyurethane film, and also relates to a four-layer composite material in which the polyurethane film is used as a waterproof and moisture-permeable functional layer, glass fiber grid cloth is used as a reinforcement layer, and polyester non-woven fabric is used as a surface layer and a bottom layer, and The preparation method and application in the building field belong to the building material field. Background technique [0002] The multi-layer composite material composed of polymer-based waterproof and moisture-permeable membrane and synthetic fiber non-woven fabric can be used as a waterproof and moisture-permeable cushion for the roof, dry-hanging decoration for the exterior wall and waterproof and moisture-permeable lining inside the insulation material in the field of construction. Cushion. Among the above-mentioned composite materials, synthetic fiber non-woven fabrics are u...

Claims

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Application Information

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IPC IPC(8): C08L75/04C08K13/02C08K3/26C08K3/22B29C47/00B29B13/06B32B27/12B32B37/15E04B1/64E04D5/10
Inventor 孙建中叶泉友王依建
Owner 宁波曦昀高分子新材料有限公司
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