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Multi-layer composite waterproof roll material and preparation method thereof

A waterproofing membrane, multi-layer composite technology, applied in the direction of roof covering, building insulation materials, roofs using flexible materials, etc., can solve problems such as overall waterproofing failure

Active Publication Date: 2022-04-22
GUANGDONG BOZHILIN ROBOT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to improve the strength of the waterproof membrane, avoid being punctured by sharp objects such as steel bars, and ensure the reliability of the waterproof layer, a series of waterproof membranes with tire bases have been developed, but this type of waterproof membrane still cannot completely avoid damage. , the overall waterproofing failure

Method used

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  • Multi-layer composite waterproof roll material and preparation method thereof
  • Multi-layer composite waterproof roll material and preparation method thereof
  • Multi-layer composite waterproof roll material and preparation method thereof

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preparation example Construction

[0090] In one of the more preferred embodiments, the preparation method of the encapsulated material includes the following steps:

[0091] The non-cured asphalt waterproof material is heated to a molten state, and then the osmotic crystalline waterproof microcapsules are added to the non-cured asphalt waterproof material under stirring.

[0092] Compared with solid-solid mixing, solid-liquid mixing is more conducive to increasing the contact area between the non-curing asphalt waterproof material and the osmotic crystalline waterproof microcapsules, so that the osmotic crystalline waterproof microcapsules can be more uniformly dispersed in the non-curable asphalt waterproof material, and further Enhance the waterproof ability of waterproof membrane.

[0093] In one of the more preferred embodiments, the packaging material is at least one selected from polypropylene, polyethylene, ethylene-vinyl acetate copolymer, polyvinyl chloride and ethylene copolymer modified asphalt.

...

Embodiment 1

[0125] This embodiment provides a multi-layer composite waterproof roll material and a preparation method thereof, comprising the following steps:

[0126] (1) Preparation of the first supporting protective layer:

[0127] The first supporting protective layer is formed by extrusion molding PE, with a thickness of 0.3mm, and the PE is a non-woven fabric base reinforced PE made of glass fibers;

[0128] (2) Prepare the pressure layer:

[0129] Prepare and form a pressure layer by extrusion encapsulation, in parts by weight, the pressure layer is a water-absorbable swellable layer composed of 80 parts of bentonite composite rubber and 20 parts of water-absorbent resin, with a thickness of 0.5mm;

[0130] (3) Preparation of self-healing layer:

[0131] The self-healing layer includes an encapsulating material and an encapsulated material; wherein the encapsulating material is PE, and the encapsulated material is formed by mixing 99 parts of non-cured asphalt waterproof material...

Embodiment 2

[0142] This embodiment provides a multi-layer composite waterproof roll material and a preparation method thereof, comprising the following steps:

[0143] (1) Preparation of the first supporting protective layer:

[0144] The first supporting protective layer is formed by extrusion molding PP, the thickness of which is 1 mm, and the PP is PP reinforced by a non-woven fabric base composed of basalt fibers;

[0145] (2) Prepare the pressure layer:

[0146] Prepare and form a pressure layer by extrusion encapsulation, in parts by weight, the pressure layer is a water-absorbable swellable layer composed of 80 parts of bentonite composite rubber and 20 parts of water-absorbent resin, with a thickness of 0.8 mm;

[0147] (3) Preparation of self-healing layer:

[0148] The self-healing layer includes an encapsulating material and an encapsulated material; wherein the encapsulating material is PP, and the encapsulated material is mixed by 97 parts of non-cured asphalt waterproof ma...

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Abstract

The invention relates to a multi-layer composite waterproof coiled material and a preparation method thereof. Belonging to the technical field of waterproof materials, the multilayer composite waterproof roll material includes a pressure layer and a self-healing layer stacked with the pressure layer; wherein, the pressure layer includes bentonite composite rubber and water-absorbing resin; the self-healing layer includes an encapsulation material and an encapsulated material The encapsulated materials include non-cured asphalt waterproof material and osmotic crystalline waterproof microcapsule; the osmotic crystalline waterproof microcapsule has a core-shell structure, the shell material is a water-soluble polymer, and the core material is a cement-based waterproof repair material. When water flows to the coiled material, the pressure layer absorbs water and expands, squeezing the self-healing layer, and the colloidal material in the self-healing layer flows to the damaged coiled material to seal the gap of the coiled material, and the osmotic crystal embedded in the self-healing layer is waterproof The microcapsules can enter the concrete cracks with the water flow to improve the waterproof effect. The pressure layer retracts after dehydration, which can avoid continuous extrusion of the self-healing layer, and re-expand after the next encounter with water, so that the coil has continuous healing ability.

Description

technical field [0001] The invention relates to the technical field of waterproof materials, in particular to a multilayer composite waterproof coiled material and a preparation method thereof. Background technique [0002] According to the statistics of relevant departments, at present, 65% of new houses in China will have different degrees of leakage within five years, 65% of real estate quality complaints come from leakage, and 65% of building waterproofing projects need to be renovated after 6-8 years. These three "65%" in the building waterproofing industry reflect the current high incidence of housing leakage problems. According to the "2013 National Building Leakage Survey Project Report" issued by the China Waterproof Association, the leakage rate reached 95.33% among thousands of house samples collected for investigation. [0003] Waterproof failure is closely related to waterproof materials and waterproof construction. At present, all kinds of waterproof material...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E04B1/66E04D5/10C09J7/29
CPCE04B1/66E04D5/10C09J7/29
Inventor 刘晓丽唐振中向青云
Owner GUANGDONG BOZHILIN ROBOT CO LTD
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