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a waterproof coating

A technology of waterproof coatings and raw materials, applied in the field of architectural coatings and waterproof coatings, can solve the problems of poor low temperature flexibility and crack resistance, unstable quality, limited application scope, etc., and achieve good flame retardant effect and excellent mechanical properties. , the effect of expanding the scope of application

Active Publication Date: 2016-09-07
JIANGSU CUMT DAZHENG SURFACE ENG TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, asphalt-based waterproof coatings have poor low-temperature flexibility and crack resistance, so they have been basically eliminated; polymeric asphalt-based waterproof coatings have greater environmental pollution, unstable quality, and average mechanical properties, waterproof performance and durability. , can only be used for waterproof projects with low requirements; polymer cement waterproof coatings have the extensibility and waterproofness of polymer coatings, and also have the advantages of high strength of hydraulic cementitious materials and easy bonding with wet bases. , has been successfully applied in some projects, but there are shortcomings such as insufficient bridging ability for cracks and too long complete curing time, which limits the scope of application; silicone waterproof coatings have disadvantages such as poor hardness, high viscosity, and contamination of the surface of the substrate ;Polyurethane waterproof coatings are elastic coatings with excellent mechanical properties and good flexibility. It cannot be applied in the field; polyurea waterproof coating has many advantages, but due to its extremely fast curing speed, it is difficult to achieve good mixing and atomization during construction, and technical defects such as pinholes will appear if there is a slight improper operation. The operating level of construction workers and the strong dependence on special equipment limit its application and promotion

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A waterproof coating, its raw material composition and preparation process are as follows: Weigh 10 parts of STP-E10, 15 parts of STP-E15, 25 parts of isooctyltriethoxysilane, 28 parts of heavy calcium carbonate, and 15 parts of nano-active Calcium carbonate, 1 part of hydrophobic fumed silica, 0.4 part of carbon black, 0.3 part of UV absorber, 0.3 part of light stabilizer, 0.3 part of anti-aging agent, put them together in a double planetary mixer, vacuumize and stir evenly, then add 0.8 part Dehydrating agent, vacuumize and stir for 15 minutes, add 1.0 parts of adhesion promoter, vacuumize and stir for 15 minutes, and discharge to obtain waterproof coating A. The performance test results are shown in Table 1.

Embodiment 2

[0031] A waterproof coating, its raw material composition and preparation process are as follows: Weigh 13 parts of STP-E10, 10 parts of STP-E15, 26 parts of isooctyltriethoxysilane, 15 parts of heavy calcium carbonate, and 22 parts of nano-active Calcium carbonate, 1 part of hydrophobic fumed silica, 2 parts of carbon black, 6 parts of aluminum hydroxide flame retardant, 0.3 part of ultraviolet absorber, 0.3 part of light stabilizer, 0.3 part of anti-aging agent, put them into a double planetary mixer together, After vacuuming and stirring evenly, add 1.2 parts of dehydrating agent, after vacuuming and stirring for 15 minutes, add 1.2 parts of adhesion promoter, vacuumize and stir for 15 minutes, and discharge to obtain waterproof coating B. The performance test results are shown in Table 1.

Embodiment 3

[0033] A waterproof coating, its raw material composition and preparation process are as follows: Weigh 11 parts of STP-E10, 12 parts of STP-E15, 25 parts of isooctyltriethoxysilane, 30 parts of heavy calcium carbonate, and 10 parts of nano-active Calcium carbonate, 8 parts of magnesium hydroxide flame retardant, 0.3 parts of UV absorber, 0.3 parts of light stabilizer, 0.3 parts of anti-aging agent, put them together in a double planetary mixer, and after vacuuming and stirring evenly, add 0.9 parts of dehydrating agent and vacuumize After stirring for 15 minutes, add 1.1 parts of adhesion promoter, vacuumize and stir for 15 minutes, and then discharge to obtain waterproof coating C. The performance test results are shown in Table 1.

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PUM

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Abstract

The invention discloses a waterproof coating. The raw material composition and parts by weight are: 10-35 parts of α-dimethoxysilane-terminated polyether resin, 5-25 parts of γ-trimethoxysilane-terminated polyether resin, three 10-30 parts of ethoxysilane, 20-50 parts of filler, 1-5 parts of pigment, 0.1-1 part of hydrophobic fumed silica, 0.1-1 part of UV absorber, 0.1-1 part of light stabilizer, anti-aging agent 0.1-1 part, 0.2-5 part of dehydrating agent, 0.1-3 part of adhesion promoter. The waterproof coating of the present invention is environmentally friendly and non-toxic, has excellent mechanical properties, waterproof properties and anti-corrosion properties, and has good adhesion with paint, steel, concrete, etc., and aluminum hydroxide or magnesium hydroxide inorganic flame retardants can also be added, The waterproof coating has a good flame retardant effect and further expands its application range.

Description

technical field [0001] The invention relates to an architectural coating, in particular to a waterproof coating, which belongs to the technical field of architectural coatings. Background technique [0002] The main purpose of using waterproof coatings for buildings and other components is to prevent moisture, seepage, and leaks. my country's investment in waterproof coatings for construction projects is increasing every year. Although a lot of investment has been made in waterproofing projects, the waterproofing effect is not satisfactory. The leakage rate of new construction projects is about 10%. [0003] The waterproof paint is painted on the surface of the building, and a thin film is formed after the chemical reaction between the components, which isolates the surface of the building from water, thus playing the role of waterproof and sealing. The waterproof film formed after the waterproof coating is cured should have certain extensibility, elastic-plasticity, crack ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D171/00C09D7/12C09D5/08C09D5/18
Inventor 倪雅沈亚郯李萍白书亚崔坤孟凡浩张安永殷俊
Owner JIANGSU CUMT DAZHENG SURFACE ENG TECH