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Self-adhesive waterproof rubber sealing material with water swelling property and preparation method of self-adhesive waterproof rubber sealing material

A water-swelling, waterproof and sealing technology, applied in the field of polymer materials, can solve the problem of no chemical cross-linking reaction of concrete, achieve excellent water-swelling sealing performance, good sealing effect, and prevent water infiltration.

Inactive Publication Date: 2016-11-09
ANHUI RONGDA VALVE
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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 a self-adhesive water-swellable waterproof rubber sealing material, which overcomes the problem that existing waterproof sealing products do not have chemical cross-linking reactions with concrete

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Weighing: 100 kg of butyl rubber, 20 kg of bentonite-calcium carbonate microspheres, 15 kg of SAP resin, 15 kg of polyisobutylene, 10 kg of tackifying resin, 2 kg of stearic acid, 6 kg of silicon dioxide, N-phenyl - 5 kg of β-naphthylamine, 2 kg of ethylene glycol dimethacrylate.

[0025] The bentonite-calcium carbonate microspheres are composed of the following raw materials in parts by weight: 60 parts of calcium chloride, 60 parts of sodium carbonate, 10 parts of sodium dodecylsulfonate and 10 parts of polyacrylamide.

[0026] Specific steps are as follows:

[0027] (1) Preparation of bentonite-calcium carbonate microspheres:

[0028] ①. Prepare calcium chloride solution, sodium carbonate solution, sodium dodecyl sulfonate aqueous solution and polyacrylamide aqueous solution, wherein calcium chloride and calcium carbonate solution have the same concentration, and their molar concentration is between 0.2mol / L, ten The molar concentration of dialkyl sodium sulfonate ...

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Abstract

The invention discloses a self-adhesive waterproof rubber sealing material with water swelling property and a preparation method of the self-adhesive waterproof rubber sealing material. The self-adhesive waterproof rubber sealing material comprises the following raw materials in parts by weight: 100 parts of butyl rubber, 15-25 parts of bentonite-calcium carbonate microspheres, 10-16 parts of SAP (super absorbent polymer) resin, 10-20 parts of polyisobutene, 8- 12 parts of tackifying resin, 1-3 parts of stearic acid, 5-10 parts of silica, 4-6 parts of N-phenyl-beta-naphthylamine and 1- 3 parts of ethyleneglycol dimethacrylate. The self-adhesive waterproof rubber sealing material prepared with the preparation method has excellent water swelling sealing performance, a full-adhesion effect is formed between the material and concrete mortar during use, penetration of water is effectively prevented, and the sealing effect is better.

Description

technical field [0001] The invention relates to the field of polymer materials, in particular to a self-adhesive water-swellable waterproof rubber sealing material and a preparation method thereof. Background technique [0002] Water Swelling Rubber (WSR for short) is a new functional polymer material developed by Japan in the late 1970s. After absorbing water, it can expand to several times or even hundreds of times its own weight or volume. When it encounters water, it can absorb water to expand its volume and generate a large expansion pressure. Ability. The characteristics of water absorption and expansion make the material play a role of water-stop within the effective volume expansion range. Compared with traditional pressure sealing materials, it not only has the sealing effect of conventional water-stop materials, but also can effectively fill the gap when the building joint is deformed. It plays the role of stopping water with water. Water-absorbing swellable rub...

Claims

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Application Information

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IPC IPC(8): C08L23/22C08L23/20C08L33/26C08K13/06C08K9/12C08K7/18C08K3/16C08K3/26C08K5/42C08K3/34C08K5/09
CPCC08L23/22C08L2205/025C08L2205/035C08L33/26C08K13/06C08K9/12C08K7/18C08K2003/162C08K2003/262C08K5/42C08K3/346C08K5/09
Inventor 胡光荣
Owner ANHUI RONGDA VALVE
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