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High-intensity waterproof breathable multilayer composite material and preparation method thereof

A multi-layer composite material, waterproof and breathable technology, applied in the field of building materials, can solve problems such as no high-strength waterproof and moisture-permeable composite materials, no polyolefins, etc.

Inactive Publication Date: 2016-03-23
NINGBO SHANQUAN WATERPROOF VENTILATED MEMBRANE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

So far, there has been no relevant report on high-strength waterproof and moisture-permeable composite materials made of polyolefin fabrics and polyolefin waterproof and moisture-permeable microporous membranes; there have been no reports on polyolefin melt radial line coating technology and similar processes

Method used

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  • High-intensity waterproof breathable multilayer composite material and preparation method thereof
  • High-intensity waterproof breathable multilayer composite material and preparation method thereof
  • High-intensity waterproof breathable multilayer composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] The above and other technical features and advantages of the present invention will be described in more detail below in conjunction with examples and test data.

[0028] Example 1

[0029] Polyethylene (LLDPE, Maoming Petrochemical / DNDA-7144) 60Kg, polypropylene (s2040, Shanghai Secco Petrochemical) 30Kg, POE (POE8200, Dow) 8.5Kg, heat stabilizer (B215, Beijing Yanlian Chemical Factory) 0.5 Kg, ethylene bis stearamide 0.8Kg, polysuccinic acid (4-hydroxy-2,2,6,6-tetramethyl-1-piperidine ethanol) ester 0.2Kg after premixing in a high-speed premixer , using a twin-screw extruder to extrude and granulate to obtain a polyolefin mixed material masterbatch for polyolefin melting and radial line bonding.

[0030] The reinforcing layer is polypropylene split silk woven cloth (50g / m 2 , Laiwu Baoli Engineering Materials Co., Ltd.). Split film yarn woven fabric is made of polypropylene split film flat yarn. It consists of two sets of parallel yarns (the shape of which is a flat ...

Embodiment 2

[0034] The preparation process and conditions of the high-strength multi-layer waterproof and breathable composite material in this example are the same as those in Example 1. The difference is that the woven fabric of the reinforcing layer is polypropylene filament plain weave (522-62×64, Shanghai Tianyuan Filtration Equipment Co., Ltd.). The test properties of the composite materials are shown in Table 1.

Embodiment 3

[0036] The preparation process and conditions of the high-strength multi-layer waterproof and breathable composite material in this example are the same as those in Example 1. The difference is that the woven fabric of the reinforcing layer is polyethylene woven fabric (50g / m 2 , Ningbo Jiashimei Plastic Co., Ltd.). The test properties of the composite materials are shown in Table 1.

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Abstract

The invention discloses a high-intensity waterproof breathable multilayer composite material which is prepared by compounding the following materials: a waterproof breathable functional layer (6), a polyolefin radial line-shaped adhesive layer (4) and a high-intensity woven cloth enhanced layer (5), wherein the waterproof breathable functional layer (6) is formed by a spunbound nonwoven fabric (1), a polyolefin waterproof breathable microporous membrane (2) and a second spunbound nonwoven fabric (3) which are subjected to point heat pressing. The high-intensity woven cloth and the waterproof breathable functional layer are compounded by a polyolefin melting radial line-shaped coating technology, so that the shortcomings that glue is low in temperature resistance and easy to age due to adhesion of adhesives such as a hot melt adhesive are overcome; meanwhile, due to line-shaped adhesion and adhesive surface made of a breathable nonwoven cloth material, the prepared waterproof breathable multilayer composite material is good in waterproofing performance, breathability and moisture permeability.

Description

technical field [0001] The invention relates to the field of building materials, in particular to a high-strength waterproof and breathable multilayer composite material and a preparation method thereof. Background technique [0002] Waterproof and breathable material is a new type of energy-saving and thermal insulation material that only allows vaporized water vapor to pass through and prevents liquid water from passing through. In the field of construction, in order to improve the service life of the building insulation layer and prevent the thermal conductivity of the insulation layer from increasing, most buildings must use waterproof and breathable materials to block moisture penetration, and at the same time remove the water vapor that causes condensation in the insulation layer. This waterproof and breathable material has been widely used in developed countries for roof waterproof and breathable, waterproof and breathable wall insulation, and external wall dry-hangin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/02B32B27/08B32B27/12B32B7/12B32B37/06B32B37/10B32B37/12
CPCB32B5/02B32B5/22B32B7/12B32B27/08B32B27/32B32B37/06B32B37/10B32B37/12B32B2262/0253B32B2307/724B32B2307/73B32B2309/02B32B2419/00B32B2419/06
Inventor 叶琛王依建江永波
Owner NINGBO SHANQUAN WATERPROOF VENTILATED MEMBRANE CO LTD