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Silane modified polymer waterproof coating with zero solvent and high environmental protection performance and preparation method thereof

A silane-modified, waterproof coating technology, applied in anti-corrosion coatings, polyurea/polyurethane coatings, coatings, etc., can solve the problems of high drying degree of substrates, poor weather resistance, poor water resistance of coating films, etc. Good weather resistance, excellent water resistance, fast curing effect

Inactive Publication Date: 2021-02-09
SICHUAN SHUYANG WATERPROOF MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, polyurethane waterproof coatings have excellent mechanical properties and good waterproof performance, but their weather resistance is not good, and they are prone to foaming in high-temperature and high-humidity environments. Good weather resistance, but the water resistance of the coating film is poor, and it is difficult to construct at low temperature; polymer cement (JS) waterproof coating is easy to bond with the wet base, and the construction is convenient, but there is also the problem of difficult construction at low temperature

Method used

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  • Silane modified polymer waterproof coating with zero solvent and high environmental protection performance and preparation method thereof
  • Silane modified polymer waterproof coating with zero solvent and high environmental protection performance and preparation method thereof
  • Silane modified polymer waterproof coating with zero solvent and high environmental protection performance and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] In a closed reaction kettle, add silane-modified polymer resin and start stirring, the mixer speed is 300 rpm; add water remover and light stabilizer and stir for 5 minutes, adjust the mixer speed to 600 rpm, and then add meteorological silica 1. Disperse aluminum hydroxide for 20 minutes with constant stirring speed, then add superfine calcium carbonate and disperse for 30 minutes. After the dispersion is uniform, the rotation speed is maintained at 600 rpm, slowly add the silane coupling agent, stir for 5 minutes, turn off the stirring, and defoam for 10 minutes under the vacuum pressure of -0.09~-0.1MPa to prepare a zero-solvent silane-terminated polymer waterproof coating.

[0031] The amount of each component described in the preparation method of the above-mentioned zero-solvent high-environmental protection performance silane-modified polymer waterproof coating is respectively: 35 parts of silane-modified polymer resin, 49 parts of calcium carbonate, 1 part of wat...

Embodiment 2

[0033] In a closed reaction kettle, add silane-modified polymer resin and start stirring, the mixer speed is 300 rpm; add water remover and light stabilizer and stir for 5 minutes, adjust the mixer speed to 600 rpm, and then add meteorological silica 1. Disperse aluminum hydroxide for 20 minutes with constant stirring speed, then add superfine calcium carbonate and disperse for 30 minutes. After the dispersion is uniform, the rotation speed is maintained at 600 rpm, slowly add the silane coupling agent, stir for 5 minutes, turn off the stirring, and defoam for 10 minutes under the vacuum pressure of -0.09~-0.1MPa to prepare a zero-solvent silane-terminated polymer waterproof coating.

[0034] The amount of each component described in the preparation method of the above-mentioned zero-solvent high-environmental protection performance silane-modified polymer waterproof coating is respectively: 35 parts of silane-modified polymer resin, 30 parts of nano-calcium, 3 parts of water-r...

Embodiment 3

[0036] In a closed reaction kettle, add silane-modified polymer resin and start stirring, the mixer speed is 300 rpm; add water remover and light stabilizer and stir for 5 minutes, adjust the mixer speed to 600 rpm, and then add meteorological silica 1. Disperse aluminum hydroxide for 20 minutes with constant stirring speed, then add superfine calcium carbonate and disperse for 30 minutes. After the dispersion is uniform, the rotation speed is maintained at 600 rpm, slowly add the silane coupling agent, stir for 5 minutes, turn off the stirring, and defoam for 10 minutes under the vacuum pressure of -0.09~-0.1MPa to prepare a zero-solvent silane-terminated polymer waterproof coating.

[0037]The dosage of each component described in the preparation method of the above-mentioned silane-modified polymer waterproof coating with zero solvent and high environmental performance is: 20 parts of silane-modified polymer resin, 40 parts of nano-calcium, 1 part of water-removing agent, li...

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Abstract

The invention relates to the field of waterproof coatings, in particular to a silane modified polymer waterproof coating with zero solvent and high environmental protection performance and a preparation method thereof. The waterproof coating is a silane-terminated polymer, wherein the main chain of the waterproof coating is a soft polyether chain segment, and the two ends of the waterproof coatingare connected with silane containing isocyanate groups; the resin structure is an international unique technology, and the reaction activity of the structure is high. The silane-modified polymer waterproof coating with zero solvent and high environmental protection performance comprises the following components in parts by weight: 15-40 parts of silane-modified polymer resin, 30-50 parts of calcium carbonate, 1-3 parts of a water removal agent, 1-3 parts of a light stabilizer, 1-5 parts of a silane coupling agent and 1-5 parts of other assistants.

Description

technical field [0001] The invention relates to the field of waterproof coatings, in particular to a silane-modified polymer waterproof coating with zero solvent and high environmental performance and a preparation method thereof. Background technique [0002] At present, the waterproof coatings on the market are mainly polyurethane waterproof coatings, acrylic waterproof coatings, polymer cement (JS) waterproof coatings and other products. Among them, polyurethane waterproof coatings have excellent mechanical properties and good waterproof performance, but their weather resistance is not good, and they are prone to foaming in high-temperature and high-humidity environments. The weather resistance is good, but the water resistance of the coating film is poor, and it is difficult to apply at low temperature; the polymer cement (JS) waterproof coating is easy to bond with the wet base, and the application is convenient, but it also has the problem of difficult application at l...

Claims

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Application Information

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IPC IPC(8): C09D175/04C09D5/08C09D7/61C09D7/63
CPCC08K2003/2227C08K2003/265C09D5/08C09D175/04C09D7/61C09D7/63C09D7/70C08K13/04C08K7/24C08K3/22C08K3/26
Inventor 骆晓彬李冬凤徐锦霞
Owner SICHUAN SHUYANG WATERPROOF MATERIAL
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