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Fumed silica modified acrylate waterproof paint, and preparation method thereof

A technology of fumed silica and waterproof coating, which is applied in the direction of coating, etc., can solve the problems that low temperature flexibility and tensile strength cannot be improved at the same time, the tensile strength of acrylate waterproof coating is low, and waterproof coating does not have superhydrophobicity, etc. Achieve the effects of improving tensile strength and scrub resistance, high elongation at break, and strong resistance to deformation

Active Publication Date: 2016-03-16
WEIFANG HONGYUAN WATERPROOF MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The prior art has the following defects: (1) Acrylic waterproof coating has poor water resistance and high water absorption; (2) Acrylic waterproof coating has low tensile strength and poor washing resistance; (3) Acrylic waterproof coating has low temperature flexibility and stretchability The strength cannot be improved at the same time, the low temperature flexibility is poor, and the tensile strength is poor, and vice versa; (4) Waterproof coatings do not have superhydrophobicity

Method used

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  • Fumed silica modified acrylate waterproof paint, and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] Embodiment 1 A kind of fumed silica modified acrylate waterproof coating

[0050] Described waterproof paint, by weight, comprises following raw material:

[0051] 40 parts of polymer emulsion, 30 parts of modified fumed silica, 0.6 parts of wetting and dispersing agent, 0.5 parts of defoamer, 0.2 parts of preservative, 0.2 parts of thickener, 5 parts of kaolin, 20 parts of heavy calcium powder, titanium 5 parts white powder, 1 part water;

[0052] Wherein, the modified fumed silica includes, in parts by weight, 15 parts of fumed silica, 10 parts of water, 6 parts of ethanol, 6 parts of acetone, and 1.5 parts of silane coupling agent.

[0053] The polymer emulsion is a styrene-acrylic emulsion with a glass transition temperature of -20°C, purchased from Dongying Jinyoulai Industry and Trade Co., Ltd., and the model is GT-167;

Embodiment 2

[0054] Embodiment 2 A kind of fumed silica modified acrylate waterproof coating

[0055] Described waterproof paint, by weight, comprises following raw material:

[0056] 45 parts of polymer emulsion, 25 parts of modified fumed silica, 0.4 part of wetting and dispersing agent, 0.4 part of defoamer, 0.1 part of preservative, 0.3 part of thickener, 8 parts of kaolin, 25 parts of heavy calcium powder, titanium 5 parts white powder, 3 parts water;

[0057] Wherein, the modified fumed silica includes, in parts by weight, 12 parts of fumed silica, 8 parts of water, 5 parts of ethanol, 4 parts of acetone, and 1.2 parts of silane coupling agent.

[0058] The polymer emulsion described is a styrene-acrylic emulsion with a glass transition temperature of -6°C, from Shanghai Badefu Industrial Co., Ltd., and the model is 300s;

Embodiment 3

[0059] Embodiment 3 A kind of fumed silica modified acrylate waterproof coating

[0060] Described waterproof paint, by weight, comprises following raw material:

[0061] 50 parts of polymer emulsion, 20 parts of modified fumed silica, 0.2 parts of wetting and dispersing agent, 0.2 parts of defoamer, 0.2 parts of preservative, 0.5 parts of thickener, 10 parts of kaolin, 20 parts of heavy calcium powder, titanium 5 parts white powder, 5 parts water;

[0062] Wherein, the modified fumed silica includes, in parts by weight, 10 parts of fumed silica, 5 parts of water, 4 parts of ethanol, 4 parts of acetone, and 1 part of silane coupling agent.

[0063] The polymer emulsion is a pure acrylic emulsion with a glass transition temperature of -23°C, from Dongying Jinyoulai Industry and Trade Co., Ltd., and the model is TX-2068;

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Abstract

The invention provides a fumed silica modified acrylate waterproof paint. The fumed silica modified acrylate waterproof paint comprises, by weight, 40 to 50 parts of a polymer emulsion, 20 to 30 parts of modifying fumed silica, 0.2 to 0.6 part of a wetting dispersant, 0.2 to 0.5 part of an antifoaming agent, 0.1 to 0.2 part of a preservative, 0.2 to 0.5 part of a thickening agent, 5 to 10 parts of kaoline, 20 to 30 parts of heavy calcium carbonate powder, 2 to 5 parts of titanium dioxide powder, and 1 to 5 parts of water. Acrylate waterproof paint water resistance is improved greatly, water absorption rate is reduced, waterproofing is realized at 0.3MPa in 60min, and water absorption rate is zero.

Description

technical field [0001] The invention relates to an acrylic waterproof coating, in particular to a gas-phase silica-modified acrylic waterproof coating and a production process thereof, belonging to the field of building waterproofing. Background technique [0002] With the improvement of people's environmental protection and healthy life quality, water-based coatings have become more and more new favorites of waterproof coatings due to their green and environmental protection characteristics. [0003] Acrylic waterproof coating is a one-component water-emulsion waterproof coating made of pure acrylic polymer emulsion as the base material and adding other additives. [0004] Acrylic waterproof coating is a water-based emulsion, does not contain any organic solvents, is non-toxic, harmless, and is a green and environmentally friendly product; it can be constructed on a wet base surface, has high bonding strength, and can be firmly combined with the base layer and the outer pro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D125/14C09D133/04C09D7/12
CPCC08L2201/08C08L2205/02C09D7/61C09D7/62C09D7/63C09D7/65C09D125/14C09D133/04C08L33/02C08K13/06C08K9/06C08K3/36C08K3/346C08K2003/265C08K2003/2241
Inventor 刘晓东蹇磊张冬冬王泮阳郑建勇
Owner WEIFANG HONGYUAN WATERPROOF MATERIAL
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