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A flexible waterproof adhesive coating for stone

A flexible waterproof and self-adhesive coating technology, used in the field of stone backing, can solve the problems of poor compatibility between Tg emulsion and cement, and achieve the effects of good water retention, improved stability and reduced water-cement ratio

Active Publication Date: 2017-09-19
NANJING REGAL POLYMER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to propose a kind of stone material flexible waterproof back glue coating in view of the deficiencies in the prior art, this coating selects the acrylic emulsion of core-shell structure, can solve the problem of poor compatibility between low Tg emulsion and cement, introduces a A thickener, which can better control the fluidity of stone adhesive coatings, to overcome the compatibility and fluidity problems of existing water-based waterproof adhesive coatings

Method used

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  • A flexible waterproof adhesive coating for stone
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Examples

Experimental program
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Effect test

Embodiment 1

[0021] According to mass percentage, take 25% of acrylic emulsion, 0.2% of water reducer, 0.1% of thickener, and 0.1% of defoamer and mix them evenly into a liquid; then select 25% of cement, 15% of 70-140 mesh quartz sand, 120- 15% of 180 quartz sand and 19.6% of 325 heavy calcium are mixed evenly to form a powder, and the prepared liquid and powder are evenly mixed to obtain the flexible waterproof adhesive coating for stone.

[0022] Among them, in the acrylic emulsion, styrene accounts for 20% of the total mass of the five monomers, methyl methacrylate accounts for 10% of the total mass of the five monomers, methacrylic acid accounts for 3% of the total mass of the five monomers, and isooctyl acrylate accounts for 65% of the total mass of the five monomers, and silicone accounts for 2% of the total mass of the five monomers; the acrylic emulsion is prepared according to the preparation method disclosed in Chinese patent 201110450289.3.

Embodiment 2

[0024] According to mass percentage, take 35% of acrylic emulsion, 0.1% of water reducer, 0.1% of thickener, and 0.1% of defoamer to mix evenly into a liquid; then select 25% of cement, 5% of 70-140 mesh quartz sand, 120- 15% of 180% quartz sand and 19.7% of 500% heavy calcium are uniformly mixed to form a powder, and the prepared liquid and powder are evenly mixed to obtain the flexible waterproof adhesive coating for stone materials.

[0025] Among them, in the acrylic emulsion, styrene accounts for 70% of the total mass of the five monomers, methyl methacrylate accounts for 2% of the total mass of the five monomers, methacrylic acid accounts for 5% of the total mass of the five monomers, and isooctyl acrylate accounts for 21% of the total mass of the five monomers, and silicone accounts for 2% of the total mass of the five monomers; the acrylic emulsion is prepared according to the preparation method disclosed in Chinese patent 201110450289.3.

Embodiment 3

[0027] According to mass percentage, take 30% of acrylic emulsion, 0.1% of water reducer, 0.2% of thickener, and 0.1% of defoamer to mix evenly into a liquid; then select 20% of cement, 5% of 70-140 mesh quartz sand, 120- 25% of 180 quartz sand and 19.6% of 325 heavy calcium are uniformly mixed to form a powder, and the prepared liquid and powder are uniformly mixed to obtain the flexible waterproof adhesive coating for stone.

[0028] Among them, in the acrylic emulsion, styrene accounts for 27% of the total mass of the pentamonomer, methyl methacrylate accounts for 1% of the total mass of the pentamonomer, methacrylic acid accounts for 1% of the total mass of the pentamonomer, and isooctyl acrylate accounts for 1% of the total mass of the pentamonomer. 70% of the total mass of the five monomers, and silicone accounts for 1% of the total mass of the five monomers; the acrylic emulsion is prepared according to the preparation method disclosed in Chinese patent 201110450289.3. ...

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Abstract

The invention discloses a novel flexible waterproof gum coating for stone. The coating is prepared by mixing the following components in percentages by weight: 10 to 50 percent of acrylic emulsion, 0.01 to 2 percent of a water reducing agent, 0.01 to 2 percent of a thickener, 0.01 to 2 percent of a defoamer, 5 to 60 percent of cement, 5 to 60 percent of silica sand and 5 to 60 percent of heavy calcium, wherein the acrylic emulsion is preferably a low-Tg pentabasic copolymer emulsion of a core-shell structure. The novel flexible waterproof gum coating for stone disclosed by the invention is good in flexibility, fluidity and stability, the caking property of stone and cement surfaces is improved, and the phenomena of efflorescence, waterlogging, bulking, cracking and the like are effectively prevented.

Description

technical field [0001] The invention relates to stone adhesive technology, in particular to a flexible waterproof adhesive coating for stone. Background technique [0002] Two-component adhesives based on water-based emulsions and inorganic silicates are replacing traditional unsaturated polyester resins on a large scale. Compared with unsaturated polyester resin, water-based waterproof back glue not only has less environmental smell, but also no longer needs to remove the back mesh layer, which greatly reduces the damage of stone materials. When using wet paste construction, the compatibility between the back of the stone and the cement-based adhesive is poor, and it is prone to shelling, hollowing, falling off and cracking. If the water-based stone adhesive is not used properly, it will also cause problems such as white blooms and water stains on the stone surface. The water-based stone adhesive needs to have good compatibility with the cement-based adhesive to ensure th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/04C04B28/06C04B24/16C04B24/26C04B14/06C04B14/28C04B24/42C04B103/30C04B103/44C04B103/50C04B111/00C04B111/27
CPCC04B24/163C04B24/2652C04B28/04C04B28/06C04B2111/00508C04B2111/00637C04B2111/27C04B14/06C04B14/28C04B24/42C04B2103/302C04B2103/44C04B2103/50
Inventor 徐健冯中军傅乐峰
Owner NANJING REGAL POLYMER
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