Method for producing hollow microsphere modified fluoro-silicone emulsion and outer wall heat-insulating coating thereof

A fluorine-silicon emulsion and hollow technology, which is applied in the direction of reflection/signal coatings, coatings, etc., to achieve convenient construction, improved weather resistance, and improved reflection and heat insulation effects

Active Publication Date: 2010-08-18
武汉双虎涂料股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a kind of hollow microbead modified fluorosilicone emulsion and its exterior wall thermal insulation coating against the defects of existing thermal insulation coatings.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0046] Accurately weigh 40.00g of hollow microbeads, add 200.00g of sodium hydroxide solution with a concentration of 0.20mol / L while stirring, disperse for 30 minutes, filter and wash with deionized water for 3 to 5 times to obtain hydroxylated hollow microbeads; Add 60.00 g of 25% vinyltrimethoxysilane aqueous solution to 60 g of hydroxylated hollow microbeads, disperse for 2 h, and stir the mixed solution at 90° C. for 4 h after dispersing. The vinyl hollow microbead dispersion (1) was obtained.

[0047] Accurately weigh 0.71 g of lactenamide, 1.55 g of methacrylic acid, 26.60 g of methyl methacrylate, 22.53 g of n-butyl acrylate, and 15.40 g of trifluoroethyl acrylate, and mix them uniformly to obtain a mixed solution of acrylate monomers. Weigh 0.375g of potassium persulfate and dissolve it in 15g of deionized water to prepare an initiator solution. Add 60.00g deionized water, 100g vinyl hollow microsphere dispersion (1), 0.75g sodium dodecylbenzenesulfonate, 0.15g sodiu...

example 2

[0063] Accurately weigh 40.00g of hollow microbeads, add 200.00g of sodium hydroxide solution with a concentration of 0.20mol / L while stirring, disperse for 30 minutes, filter and wash with deionized water for 3 to 5 times to obtain hydroxylated hollow microbeads; Add 60.00 g of 25% vinyltrimethoxysilane aqueous solution to 60 g of hydroxylated hollow microbeads, disperse for 2 h, and stir the mixed solution at 90° C. for 4 h after dispersing. The vinyl hollow microbead dispersion (1) was obtained.

[0064] Accurately weigh 0.71 g of acrylamide, 1.55 g of methacrylic acid, 26.60 g of methyl methacrylate, 22.53 g of n-butyl acrylate, and 15.40 g of trifluoroethyl endenoate, and mix them uniformly to obtain a mixed solution of acrylate monomers. Accurately weigh 0.375g of potassium persulfate and dissolve in 15g of deionized water to prepare an initiator solution. Add 60.00g deionized water, 100g vinyl hollow microsphere dispersion (1), 0.75g sodium dodecylbenzenesulfonate, 0.1...

example 3

[0080] Accurately weigh 40.00g of hollow microbeads, add 200.00g of sodium hydroxide solution with a concentration of 0.20mol / L while stirring, disperse for 30 minutes, filter and wash with deionized water for 3 to 5 times to obtain hydroxylated hollow microbeads; Add 60.00 g of 25% vinyl tris (2-methoxyethoxy) silane aqueous solution to 60.0 g of hydroxylated hollow microbeads, disperse for 2 h, and stir the mixture at 90° C. for 4 h after dispersing. The vinyl hollow microbead dispersion (1) was obtained.

[0081]Accurately weigh 0.69g of acrylamide, 1.65g of methacrylic acid, 21.60g of methyl methacrylate, 32.01g of lauryl methacrylate, 3.0g of vinyl triisopropoxysilane, trifluoromethacrylate 15.40 g of acetoxyethyl ester was uniformly mixed to obtain a mixed solution of acrylate monomers, and 0.375 g of potassium persulfate was accurately weighed and dissolved in 15 g of deionized water to obtain an initiator solution. Add 60.00g deionized water, 100g vinyl hollow microsp...

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PUM

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Abstract

The invention relates to a building outer wall heat-insulating coating, in particular to a method for producing hollow microsphere modified fluoro-silicone emulsion and outer wall heat-insulating coating thereof. Hollow microspheres are added into aqueous solution containing vinylsilane coupling agent and uniformly stirred, so that hollow microsphere dispersion with the solid content of 20 percent to 60 percent is produced, and the hollow microsphere dispersion, deionized water, buffer and emulsifier are uniformly mixed and then added with fluorin, silicon acrylate mixed monomer and initiator to carry out reaction, so that the hollow microsphere modified fluoro-silicone emulsion is produced. The hollow microsphere modified fluoro-silicone emulsion is uniformly mixed with bactericide, dispersing agent, wetting agent, cosolvent and defoamer and then added with thickening agent, so that the outer wall heat-insulating coating is produced. The outer wall heat-insulating coating has the advantages of excellent comprehensive performance, outstanding heat-insulating, stain-resistant and weather-resistant properties and convenient construction, and therefore has a broad market prospect.

Description

technical field [0001] The invention relates to a heat-insulating paint for building exterior walls, in particular to a hollow microbead modified fluorine-silicon emulsion and a preparation method for the heat-insulating paint for exterior walls. Background technique [0002] Thermal insulation coatings can be widely used in residential buildings, construction workshops, grain storage warehouses and petrochemical storage tanks to isolate the heat from the outside to keep the internal temperature low. The hollow microspheres used in ordinary thermal insulation coatings are added to the coating in the form of physical blending to increase the heat reflection ability of the thermal insulation coating. Generally, in order to improve the reflective heat insulation effect of heat insulation coatings, it is necessary to increase the amount of hollow microspheres by a large amount. According to the physical properties of the hollow microspheres themselves, the density is lower than...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F292/00C08F220/22C08F230/08C09D151/10C09D5/33
Inventor 文风廖笠陈俊王慧王兰玲
Owner 武汉双虎涂料股份有限公司
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