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A bentonite-based composite waterstop strip

A technology of bentonite and water-stop strips, which is applied in the field of building materials, can solve the problems of poor mechanical properties and expansion effects of water-stop strips, and achieve the effects of reducing mechanical properties, improving compatibility, and increasing glass transition temperature

Active Publication Date: 2020-06-23
上安实业江苏有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The main technical problem to be solved by the present invention is to provide a bentonite-based composite water-stop strip for the disadvantages of poor mechanical properties and expansion effects of the traditional water-stop strip

Method used

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  • A bentonite-based composite waterstop strip

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0030] Pour bentonite and isocyanate into a ball milling tank at a mass ratio of 20:1, and add a silane coupling agent with a mass ratio of 8% of bentonite, then add zirconia ball milling beads at a mass ratio of 20:1, and ball mill for 6 hours. Pass through a 300-mesh sieve to obtain modified bentonite; in parts by weight, 30 parts of modified bentonite, 45 parts of water-absorbing resin, 15 parts of polyallylamine, 12 parts of rubber compound, 10 parts of tackifying resin, 3 parts of Plasticizer, 0.8 parts of anti-aging agent, firstly add the rubber compound into the plastic mixer, and masticate for 30 minutes at a temperature of 80°C to obtain plasticized rubber, then plasticized rubber, modified bentonite, water-absorbing resin, plasticized Agent, anti-aging agent, tackifying resin and polyallylamine were mixed at a temperature of 110°C for 15 minutes to obtain a mixed rubber, and the obtained mixed rubber was extruded through an extruder to obtain a bentonite-based composi...

example 2

[0032] According to the mass ratio of 20:1, pour the bentonite into the ball mill jar, and add 8% silane coupling agent of the mass of bentonite, then add zirconia ball milling beads according to the mass ratio of the ball to material at 20:1. After ball milling and mixing for 6 hours, pass 300 mesh sieve to obtain modified bentonite; in parts by weight, successively get 30 parts of modified bentonite, 45 parts of water-absorbing resin, 15 parts of polyallylamine, 12 parts of rubber compound, 10 parts of tackifying resin, and 3 parts of plasticizer , 0.8 parts of anti-aging agent, first add the rubber compound into the plastic mixer, and masticate for 30 minutes at a temperature of 80°C to obtain plasticized rubber, and then plasticized rubber, modified bentonite, water-absorbing resin, plasticizer, Anti-aging agent, tackifying resin and polyallylamine were kneaded for 15 minutes at a temperature of 110°C to obtain a mixed rubber, and the obtained mixed rubber was extruded thro...

example 3

[0034]Pour bentonite and isocyanate into a ball milling tank at a mass ratio of 20:1, and add a silane coupling agent with a mass ratio of 8% of bentonite, then add zirconia ball milling beads at a mass ratio of 20:1, and ball mill for 6 hours. Pass through a 300-mesh sieve to obtain modified bentonite; in parts by weight, take 30 parts of modified bentonite, 45 parts of water-absorbing resin, 12 parts of rubber compound, 10 parts of tackifying resin, 3 parts of plasticizer, and 0.8 part of anti-aging Add the rubber compound to the plasticizer first, and masticate for 30 minutes at a temperature of 80°C to obtain the plasticized rubber, and then add the plasticized rubber, modified bentonite, water-absorbing resin, plasticizer, anti-aging agent, The viscose resin was mixed for 15 minutes at a temperature of 110°C to obtain a compounded rubber, and the obtained mixed rubber was extruded through an extruder to obtain a bentonite-based composite waterstop strip. The bentonite is ...

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PUM

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Abstract

The invention discloses a bentonite based composite sealing rod, and belongs to the technical field of building materials. The developed bentonite based composite sealing rod comprises modified bentonite, a water absorbent resin, poly-allylamine, a rubber compound, a tackifying resin, a plasticizer and an antiager. In the preparation process, the rubber is plasticated firstly to obtain a plasticated rubber, then the plasticated rubber, the modified bentonite, the water absorbent resin, the plasticizer, the antiager, the tackifying resin and the poly-allylamine are mixed, extracted and formed to obtain the bentonite based composite sealing rod, wherein the modified bentonite is prepared by mixing and ball-milling the bentonite, isocyanate and a coupling agent.

Description

technical field [0001] The invention discloses a bentonite-based composite water-stop strip, which belongs to the technical field of building materials. Background technique [0002] In recent years, with the acceleration of urban construction, a large number of underground spaces have been developed and utilized. There are more and more large-scale underground garages and civil air defense projects. There are horizontal and vertical concrete construction joints on both the roof and the roof. The joints of the construction joints are the weak points of waterproofing. If they are not handled properly, there will be leakage, which will affect the use function. The water-swellable water-stop strip is a new type of waterproof sealing material for the construction treatment of building construction joints. This material is mainly used for water-proof and anti-seepage of building construction joints. Compared with the steel plate waterstop, it has the advantages of light weight, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L33/02C08L33/26C08L1/28C08L61/06C08L57/02C08L47/00C08L9/02C08L7/00C08L23/22C08L33/12C08L75/04C08L39/00C08K13/06C08K9/00C08K3/34C08K5/12C08K5/18
CPCC08L33/02C08L2205/02C08L2205/035C08L33/26C08L1/284C08L61/06C08L57/02C08L47/00C08L9/02C08L7/00C08L23/22C08L33/12C08L75/04C08L39/00C08K13/06C08K9/00C08K3/346C08K5/12C08K5/18
Inventor 龙端福许蘅陈龙
Owner 上安实业江苏有限公司
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