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Waterproof coating

A waterproof coating and modified asphalt technology, applied in asphalt coatings, coatings, etc., can solve the problems of large latex content, low solid content, and high cost, and achieve low transportation costs, high impermeable pressure, and reduced content.

Inactive Publication Date: 2016-04-13
张力元
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, at present, the preparation process of water-emulsion rubber asphalt waterproof coating generally adopts the process of first emulsification and then modification. Firstly, the base asphalt is emulsified to obtain emulsified asphalt, and then latex modifier and other materials are mixed with emulsified asphalt to obtain water emulsion. Type rubber asphalt waterproof coating has the disadvantages of low solid content, large latex content, and high cost.

Method used

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Examples

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Embodiment 1

[0021] The waterproof coating of the present invention comprises the following components in parts by mass:

[0022] SBS modified asphalt: 350-450 parts;

[0023] Neoprene latex: 110-145 parts;

[0024] Emulsifier: 11.3-21.8 parts;

[0025] Water: 203-254 parts;

[0026] 4-8 parts of dispersant;

[0027] 1.5-2.5 parts of defoamer;

[0028] 1.8-3.2 parts of pH regulator;

[0029] The dispersant includes at least one of polyacrylate, polymethacrylate, methylcellulose, carboxymethylcellulose, gelatin, starch and sodium alginate.

[0030] Specifically, the softening point of the SBS modified asphalt is 56°C-70°C, the ductility is 21-45cm, the penetration is 41-65; the rotational viscosity is 200-600mPa·s.

[0031] Specifically, the neoprene latex includes CRL50LK cationic neoprene latex, and the emulsifier includes cationic asphalt emulsifier.

[0032] Further, the defoamer includes silicone defoamer and / or tributyl phosphate.

[0033] Further, the pH regulator includes: o...

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Abstract

The invention relates to the technical field of water-based coatings, in particular to a waterproof coating. The waterproof coating is prepared from, by mass, 350-450 parts of SBS modified asphalt, 110-145 parts of neoprene latex, 11.3-21.8 parts of emulgator, 203-254 parts of water, 4-8 parts of a dispersing agent, 1.5-2.5 parts of a defoaming agent and 1.8-3.2 parts of a PH conditioning agent. The dispersing agent comprises one or more of polyacrylate, polymethacrylate, methylcellulose, carboxymethyl cellulose fibers, gelatin, starch and sodium alginate. The coating has dual characteristics of asphalt and rubber and has the advantages of being high in water impermeable pressure, high in solid content, safe and environmentally friendly.

Description

technical field [0001] The invention relates to the technical field of water-based paint, in particular to a waterproof paint. Background technique [0002] Rubber asphalt waterproof coatings can be divided into water-emulsion rubber asphalt waterproof coatings and solvent-based rubber asphalt waterproof coatings according to their composition. The dispersion medium of solvent-based rubber asphalt waterproof coating is an organic solvent, which has a strong smell, poor safety, easy to cause environmental pollution, and seriously endanger the health of production personnel, testing personnel and construction personnel. With the enhancement of people's awareness of environmental protection, water-emulsion rubber asphalt waterproof coatings with excellent environmental performance and cost advantages will be the future development direction. [0003] However, at present, the preparation process of water-emulsion rubber asphalt waterproof coating generally adopts the process of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D195/00C09D7/12
CPCC09D195/00C08L2205/03C09D7/65C08L11/02C08L53/02
Inventor 张力元
Owner 张力元
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