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Stone surface protective coating and preparation method thereof

A protective coating and stone technology, applied in the direction of coating, etc., can solve the problems that affect the decorative effect and service life, damage the surface gloss of stone, rust spots, etc., achieve good economic benefits and application prospects, block water migration, and prolong service life Effect

Active Publication Date: 2020-05-26
佛山市元通胶粘实业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The reason for efflorescence is: cement mortar reacts with water and carbon dioxide to produce an aqueous solution containing alkali and salt, which penetrates into the surface of the stone through the pores. After the water evaporates, the alkali and salt become white crystals and adhere to the surface of the stone. White spots will form, which will seriously damage the surface luster of the stone and seriously affect the decorative effect and service life
[0008] (3) rust spots

Method used

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  • Stone surface protective coating and preparation method thereof
  • Stone surface protective coating and preparation method thereof
  • Stone surface protective coating and preparation method thereof

Examples

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Effect test

Embodiment 1

[0029] Take 1000g of cyclohexane and 12g of triethylene glycol methyl ether, after mixing, add 45g of nano-silica (particle size 150-200nm), stir for 30min (stirring speed 500r / min), and then add 155g of vinyl-terminated dimethyl base siloxane, mix well, and let it stand for 12h; then, add 5g perfluoromethyl vinyl ether and 45g polystyrene-polybutadiene-polystyrene block copolymer, mix well, and obtain the present invention Stone surface protective coating A-1.

Embodiment 2

[0031] Take 1000g of cyclohexane and 10g of triethylene glycol methyl ether, after mixing, add 52g of nano-silica (particle size 150-200nm), stir for 30min (stirring speed 800r / min), then add 98g of vinyl-terminated dimethyl base siloxane, mix well, and let it stand for 2h; then, add 8g perfluoromethyl vinyl ether and 50g polystyrene-polybutadiene-polystyrene block copolymer, mix well, and obtain the present invention Stone surface protective coating A-2.

Embodiment 3

[0033] Take 1000g of cyclohexane and 10g of triethylene glycol methyl ether, after mixing, add 55g of nano-silica (particle size 150-200nm), stir for 30min (stirring speed 1000r / min), then add 125g of vinyl-terminated dimethyl base siloxane, mix well, and let it stand for 6h; then, add 10g perfluoromethyl vinyl ether and 40g polystyrene-polybutadiene-polystyrene block copolymer, mix well, and obtain the present invention Stone surface protective coating A-3.

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Abstract

The invention discloses a surface protecting coating of a stone. The coating is composed of the following components in parts by weight: 1000 parts of cyclohexane, 5-15 parts of triethylene glycol methyl ether, 10-100 parts of nano silicon dioxide, 80-180 parts of vinyl blocked dimethyl siloxane, 2-15 parts of perfluoromethyl vinyl ether and 20-60 parts of a polystyrene-polybutadiene-polystyrene block copolymer. After applying the surface protecting coating of the stone disclosed by the invention, effects of blocking moisture migration and diffusion of salt and alkali can be exerted, so that various diseases such as water spots, saltpetering, rust and cracks after a natural stone is in contact with cement mortar can be avoided better, the bonding strength can be increased, and the service life of the natural stone, in particular of the natural stone for building decoration, is greatly prolonged. The coating has quite good economical benefit and application prospect.

Description

technical field [0001] The invention relates to a stone surface protective coating and a preparation method thereof. Background technique [0002] In the construction industry, stone is the most widely used building material, from ancient grottoes, stone bridges, stone towers, stone pavilions to the most commonly used modern decorative stones, as well as various petroglyphs, statues, wall carvings and monuments, etc. Stone is more and more widely used for its solid texture, beautiful and colorful tones and magical changing stripes. It not only beautifies people's living environment, but also makes people fully feel the beauty and charm of nature. [0003] However, because stone is composed of a variety of minerals, it is very easy to react with other chemical substances, so the surface of stone is often easily polluted and corroded. The common adverse diseases mainly include: [0004] (1) Water stains [0005] After the stone is in contact with the cement mortar, the alkal...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D4/06C09D7/61C09D7/63C04B41/50
CPCC04B41/009C04B41/50C09D4/06C09D7/63C04B41/4857C04B41/463C04B41/4922C04B14/02
Inventor 程伟霞
Owner 佛山市元通胶粘实业有限公司
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