Self-heal waterproof sealant and production method thereof

A technology of waterproof sealing and sealant, applied in the direction of chemical instruments and methods, adhesives, adhesive additives, etc., can solve the problems that have not been widely promoted, and achieve the effect of strong bonding performance, good elasticity and flexibility

Inactive Publication Date: 2011-11-09
王文立
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, this coating is rarely used in our country and has not been widely promoted.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0025] Liquid material component (component A):

[0026] Water-based polyurethane water-swellable sealant 95%

[0027] Tackifier 5%

[0028] Powder component (component B):

[0029] Nanoscale silica powder 4.5%

[0030] Nanoscale montmorillonite powder 90%

[0031] Super absorbent resin 1%

[0032] Cement-based penetrating crystalline masterbatch 4.4%

[0033] Anti-aging agent 0.1%

[0034] The production method of self-healing waterproof sealant of the present invention:

[0035] Preparation of component A: Weigh each component of the above-mentioned liquid material in proportion by weight, add water-based polyurethane water-swellable sealant and tackifier into a dispersion mixer in turn, and stir evenly to obtain liquid material A.

[0036] Preparation of component B: Weigh each component of the above-mentioned powder according to the weight ratio, and then add nano-scale silica powder, nano-scale montmorillonite powder, high-power water-absorbing resin, cement-based ...

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PUM

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Abstract

The invention discloses a two-component self-heal waterproof sealant in the field of construction. A liquid material comprises an aqueous polyurethane water expandable sealant and a tackifier, and a powder material comprises nano-scale silica powder, nano-scale montmorillonite powder, super water absorbing resin, a cement-base osmotic crystalline parent material and an age resister. The self-heal waterproof sealant has the advantages that: (1) after construction, the two components can be reacted for solidification in a sealed state, and the sealing waterproof effect is achieved; (2) cracks are cracked again after construction, and the sealant can block the cracks in a self-heal mode to achieve the waterproof effect; (3) the sealant has high substrate adaptability, and can be inlaid or poured; (4) the coated sealant has high elasticity and flexibility; (5) the sealant has high substrate bonding performance; and (6) the product does not contain any solvent, is environment-friendly and is an environment-friendly waterproof sealant.

Description

technical field [0001] The invention relates to a self-healing waterproof sealant and a production method thereof, in particular to construction engineering expansion joints, structural settlement joints, highways, high-speed rail, rail transit, etc. Self-healing waterproof sealant for airport runway expansion joints, expansion joints reserved for canal dams, etc., and also introduces the production method of the sealant. Background technique [0002] At present, the materials used in the domestic market for sealing and waterproofing such as cracks and deformation joints include "polysulfide sealant", "polyurethane sealant", "silicone sealant", "acrylate sealant", "PVC sealant", " asphalt horseshoe grease", etc. The above waterproof sealing materials are all traditional products and have made great contributions in the field of waterproofing for many years. But none of them have self-healing function. Once the gap widens due to various factors such as foundation settlement...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J175/04C09J11/04C09J9/00C09K3/10
Inventor 王文立马朝霞丁新军李周荣李玉良
Owner 王文立
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