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Waterproof gas-permeable membrane

A technology of waterproof and breathable film and breathable layer, applied in the field of construction film, can solve the problems of poor waterproof breathability, short service life, reduced bonding strength, etc., and achieve moderate cost, excellent impact strength, and excellent heat resistance. Effect

Active Publication Date: 2017-08-22
安徽瑞联节能科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the mainstream waterproof and breathable membranes are mainly made of polypropylene and polymer breathable membranes. Due to the use outside the building, under the action of high temperature, ultraviolet radiation and rain, the bonding strength of each layer is significantly reduced year by year. Short lifespan, resulting in gradual deterioration of waterproof and breathable properties

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] The invention provides a waterproof and breathable membrane, which includes a waterproof surface layer, a breathable layer and a base material layer from top to bottom; the base material layer is a TPU layer, and the base material layer is bonded to the waterproof surface layer through the breathable layer; the waterproof surface layer is waterproof without Fabric layer.

[0023] The components of the breathable layer and the parts by mass of each component are: polyether resin: 55 parts, activated base: 11 parts, auxiliary agent: 3 parts; the components of the activated base and the parts by mass of each component in the activated base They are: calcium carbonate: 8 parts, linear low-density polyethylene: 17 parts; the components of the additives and the mass parts of the additives accounted for by each component are: coupling agent: 3 parts, lubricant: 3 parts, anti- Oxygen agent: 1 part, dispersant: 1 part.

[0024] The method of making the breathable layer is as fo...

Embodiment 2

[0031] The invention provides a waterproof and breathable membrane, which includes a waterproof surface layer, a breathable layer and a base material layer from top to bottom; the base material layer is a TPU layer, and the base material layer is bonded to the waterproof surface layer through the breathable layer; the waterproof surface layer is waterproof without Fabric layer.

[0032] The components of the air-permeable layer and the parts by mass of each component are: polyether resin: 75 parts, activated base: 15 parts, auxiliary agent: 6 parts; the components of the activated base and the parts by mass of each component in the activated base They are: calcium carbonate: 15 parts, linear low-density polyethylene: 10 parts; the components of the additives and the mass parts of the additives accounted for by each component are: coupling agent: 6 parts, lubricant: 5 parts, anti- Oxygen agent: 3 parts, dispersant: 3 parts.

[0033] The method of making the breathable layer is...

Embodiment 3

[0040] The invention provides a waterproof and breathable membrane, which includes a waterproof surface layer, a breathable layer and a base material layer from top to bottom; the base material layer is a TPU layer, and the base material layer is bonded to the waterproof surface layer through the breathable layer; the waterproof surface layer is waterproof without Fabric layer.

[0041] The components of the breathable layer and the parts by mass of each component are: polyether resin: 65 parts, activated base: 13 parts, auxiliary agent: 5 parts; the components of the activated base and the parts by mass of each component in the activated base They are: calcium carbonate: 11 parts, linear low-density polyethylene: 14 parts; the components of the additives and the mass parts of the additives accounted for by each component are: coupling agent: 5 parts, lubricant: 4 parts, anti- Oxygen agent: 2 parts, dispersant: 2 parts.

[0042] The method of making the breathable layer is as...

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PUM

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Abstract

The invention provides a waterproof gas-permeable membrane. The waterproof gas-permeable membrane sequentially comprises a waterproof surface layer, a gas-permeable layer and a base material layer from top to bottom, wherein the base material layer is adhered with the waterproof surface layer through the gas-permeable layer; the gas-permeable layer contains the following components in parts by mass: 55-75 parts of polyether ester, 11-15 parts of an activated substrate and 3-6 parts of an aid; the activated substrate contains the following components in parts by mass: 8-15 parts of calcium carbonate and 10-17 parts of linear low-density polyethylene; the aid contains the following components in parts by mass: 3-6 parts of a coupling agent, 3-5 parts of a lubricating agent, 1-3 parts of an antioxidant and 1-3 parts of a dispersing agent. The waterproof gas-permeable membrane has excellent bonding strength with an outer wall of a building, has excellent adhesive strength and good waterproof and gas-permeable effects and is durable, moderate in cost and suitable for being generalized and used.

Description

technical field [0001] The invention belongs to the technical field of building films, and in particular relates to a waterproof and breathable film. Background technique [0002] In the building breathable waterproof layer in the construction industry, breathable membranes are often used to improve the life of the insulation material inside the masonry and the insulation performance of the building itself. Waterproof and breathable membrane is a new type of polymer waterproof material. The technical requirements are much higher than that of ordinary waterproof materials. While strengthening the air and water tightness of the building, it also requires the water vapor inside the structure to be discharged quickly to avoid the growth of mold and protect the property. value. [0003] At present, the mainstream waterproof and breathable membranes are mainly made of polypropylene and polymer breathable membranes. Due to the use outside the building, under the action of high tem...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/02B32B27/12B32B27/30B32B27/08B32B27/40B32B7/10B32B33/00
CPCB32B5/02B32B7/10B32B27/08B32B27/12B32B27/30B32B27/40B32B33/00B32B2307/724B32B2307/73
Inventor 范伟王壮
Owner 安徽瑞联节能科技股份有限公司
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