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Process of preventing building or ornament from being stuck and daubed adopting organic silicon

An organosilicon coating and organosilicon compound technology, which is applied to coatings, devices for coating liquid on surfaces, special surfaces, etc. Low polarity, easy removal, low surface tension effect

Inactive Publication Date: 2009-07-08
王睿 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The outer surfaces of buildings or public facilities, decorations, etc. are often covered by a large number of stickers (such as stickers), or painted with oily paint, which seriously affects the appearance
However, since most of the exterior wall surface coatings currently used are acrylic, polyurethane, alkyd and other types of coatings, or there is no coating coverage at all, the surface energy is relatively high, which makes it very difficult to remove the above-mentioned pastes or smear them.
However, there is no report on the use of silicone coatings for anti-sticking on the surface of buildings or decorations

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] 95 parts by weight of methyltrichlorosilane and 5 parts by weight of dimethyldichlorosilane are hydrolyzed with a large amount of water, and the resulting precipitate is filtered, washed with water, mixed with NaOH aqueous solution, and heated at 90-95°C for 2 hours , diluted with water to 5%, and filtered to obtain sodium methyl silicate and polymethylsilyl ether prepolymer solution. Apply the obtained sodium methyl silicate / polymethylsilyl ether prepolymer solution evenly on the surface of a cylindrical cement light pole simulant with a diameter of 30 cm and a length of 60 cm, and cure at room temperature at 25°C for 48 hours to obtain an organic Silicone coating.

Embodiment 2

[0019] Make a 40% solution of polymethyltriethoxysilane resin with ethanol. The prepared silicone resin solution was evenly sprayed on the surface of a cylindrical cement light pole simulant with a diameter of 30 cm and a length of 60 cm, and cured at room temperature at 25°C for 12 hours to obtain a silicone resin coating. The coating is colorless, matte and non-tacky.

Embodiment 3

[0021] Immerse the cleaned glass in simethicone oil with a viscosity of 0.2-0.5 Pa·s for 3 minutes, take it out, put it in an oven and bake it at 250-270°C for 3 hours, and slowly cool it down to room temperature. A transparent silicone film is formed on the surface of the glass, and the measured surface tension is 25 millinewtons / meter.

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PUM

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Abstract

The invention discloses a method to prevent the building or the decoration from being stuck or covered by the organic silicon. It covers the organic silicon compound on the buildings then to solidify under normal temperature to 300DEG C. Because of the organic silicon coating has the low surface energy, so the adhered or the paint is easy to clear. The organic compound can use the silicone oil, silicon rubber or the silicone resin to form the film which has the low toxic, polar and surface energy. The surface energy is less than 30mN / m according to the 30-50mN / m of the more organic adhesives. The water paint is difficulty to adhere because of its hydrophobicity.

Description

technical field [0001] The invention relates to a method for preventing buildings or decorations from being pasted or smeared, in particular to a method for preventing buildings or decorations from being pasted or smeared by using a silicone coating. Background technique [0002] The outer surfaces of buildings or public facilities, decorations, etc. are often covered by a large number of stickers (such as stickers), or smeared by oily paint, which seriously affects the appearance. But because most of the exterior wall surface coatings used at present are the coatings of types such as acrylic acid, polyurethane, alkyd, or do not have coating coverage at all, make its surface energy higher, cause removing above-mentioned paste or smear very difficult. Organosilicon is a polymer synthetic material containing elemental silicon in its molecular structure. It has been widely used in many fields such as medical and health care, textiles, printing and building waterproofing. Silic...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D183/04B05D5/08
Inventor 王睿屈小中
Owner 王睿