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An aging-resistant rubber waterstop

A rubber waterstop and anti-aging technology, which is applied in the fields of construction, bridges and tunnels, can solve the problems of poor aging resistance and high maintenance costs, and achieve improved aging resistance and salt spray resistance, good protection, and super anti-aging sexual effect

Active Publication Date: 2018-08-07
尚德建设集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide an aging-resistant rubber waterstop, which is used to solve the problems of poor aging resistance and high maintenance cost of the rubber waterstop in the prior art

Method used

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  • An aging-resistant rubber waterstop
  • An aging-resistant rubber waterstop
  • An aging-resistant rubber waterstop

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A U-shaped anti-aging rubber waterstop, such as figure 1 As shown, it includes a polyurea protective layer 2 and a rubber elastic layer 1 that are compounded together; the rubber elastic layer 1 adopts one of neoprene, natural rubber or EPDM rubber; the rubber elastic layer 1 is U-shaped;

[0031] The polyurea protective layer 2 is composed of the isocyanate component (referred to as component A) and the amino compound component (referred to as component B) through high temperature and high pressure impact mixing and spraying on the cured layer film of the rubber elastic layer. The thickness of the polyurea protective layer 2 is generally 2mm. ; Among them, the materials and contents of components A and B are the same as above;

[0032] The polyurea protective layer 2 of the present invention has super aging resistance and salt spray resistance, plays a good protective role on the inner rubber elastic layer 1, and effectively improves the aging resistance and salt spray...

Embodiment 2

[0034] A W-type anti-aging rubber waterstop, such as figure 2 As shown, including the polyurea protective layer 2 and the rubber elastic layer 1 compounded together, the rubber elastic layer adopts one of neoprene rubber, natural rubber or EPDM rubber; the rubber elastic layer is W-shaped;

[0035] The polyurea protective layer is sprayed on the cured layer film of the rubber elastic layer by mixing the isocyanate component and the amino compound component through high temperature and high pressure impact type. ;

Embodiment 3

[0037] A PE type anti-aging rubber waterstop, such as image 3 As shown, it includes a polyurea protective layer 2 and a rubber elastic layer 1 that are compounded together; the rubber elastic layer adopts neoprene, natural rubber or EPDM rubber; the rubber elastic layer is PE type;

[0038] The polyurea protective layer is made of isocyanate component (referred to as component A) and amino compound component (referred to as component B) through high temperature and high pressure impact mixing and spraying on the cured layer film of the rubber elastic layer, wherein the materials and contents of components A and B are Same as above; the thickness of polyurea protective layer is generally 1mm;

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Abstract

The invention discloses an anti-ageing rubber water stop which comprises a rubber elastic layer and a polyurea protecting layer, wherein the polyurea protecting layer is compounded on the outer surface of the rubber elastic layer; the rubber elastic layer is made from one of neoprene, natural rubber or ethylene-propylene-diene-terpolymer rubber; the polyurea protecting layer is formed by coating an isocyanate component and an amino compound component on the rubber elastic layer in the manner of high-temperature high-pressure impact type mixing and curing into a film. The polyurea protecting layer adopted by the invention has ultrahigh anti-ageing property and salt spray resistance; the polyurea protecting layer is compounded with the rubber elastic layer, so that the inner rubber elastic layer is effectively protected; the anti-ageing property and salt spray resistance of the rubber water stop are effectively promoted.

Description

technical field [0001] The invention belongs to the technical fields of bridges, tunnels and buildings, and in particular relates to an anti-aging rubber waterstop. Background technique [0002] Waterstop is an important component for waterproofing and waterstopping in bridges, tunnels and construction projects, especially in bridge expansion joints and tunnel joints. In addition to meeting certain physical and mechanical properties, the hose should also have good durability. [0003] For example, if the existing rubber waterstop for bridge expansion device works in the natural environment for 5-7 years, there will be a large number of cracks, cracks and other aging phenomena, and the water-stop and waterproof functions will be lost, and the rainwater will flow down through the beam end to the beam end. , bridge support and other main structures, bring a great threat to the life of the bridge structure. At the same time, the replacement of the waterstop of the bridge expan...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D175/02C08J7/04E01D19/06E02D29/16
CPCC08J7/0427C08J2375/02C08J2407/00C08J2411/00C08J2423/16C09D175/02E01D19/06E02D29/16
Inventor 张春徐彬周杰英孙鹏齐飞吴世海汪红梅
Owner 尚德建设集团有限公司