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A kind of anti-aging polymer waterproof architectural coating and preparation method thereof

A technology of architectural coatings and polymers, applied in the direction of coatings, etc., can solve the problems of waterproof failure, no bonding ability, etc., and achieve the effects of improving acid and alkali resistance, improving water impermeability, and promoting polymerization

Active Publication Date: 2021-08-24
陈长仙
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome the deficiencies of the prior art, provide a kind of anti-aging polymer waterproof architectural coating and its preparation method, solve the polymer cement waterproof coating anti-aging cross in the prior art and cause plastic agent small molecule and polymer large Molecules have no bonding ability and waterproof failure. The anti-aging polymer waterproof architectural coating provided promotes the polymerization of polymer cement through the slow-release initiator after film formation, improving the acid and alkali resistance and aging resistance of the coating. At the same time It also greatly improves the impermeability of the coating

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] An aging-resistant polymer waterproof architectural coating, the aging-resistant polymer waterproof architectural coating consists of the following components by weight: 130 parts of acrylate emulsion, 20 parts of urea-formaldehyde resin, 20 parts of melamine resin, 15 parts of polypropylene fiber, 10 parts of methacrylate, 5 parts of ordinary Portland cement, 10 parts of bentonite stone, 5 parts of nano-silica, 3 parts of gluten powder, 3 parts of slow-release initiator fixed by nano-silica.

[0031] The preparation method of above-mentioned anti-aging polymer waterproof building coating, comprises the steps:

[0032] Step 1. After mixing organosilicon methacrylate and ethyl acetate at a molar ratio of 1:3, adjust the pH of the mixture to 1 with an acidic reagent, stir and disperse evenly to form a silica sol, and then benzene peroxide Add formyl (BPO) and n-dodecyl mercaptan to silica sol, wherein the molar ratio of peroxide, n-dodecyl mercaptan and organosilicon este...

Embodiment 2

[0036] An aging-resistant polymer waterproof architectural coating, said aging-resistant polymer waterproof architectural coating is composed of the following components in parts by weight: 150 parts of ethylene-vinyl acetate emulsion, 40 parts of urea-formaldehyde resin, 40 parts of melamine resin, and 30 parts of polypropylene fiber 20 parts, 20 parts of methacrylate, 15 parts of pozzolan Portland cement, 20 parts of sepiolite, 10 parts of nano-alumina, 8 parts of corn flour, 10 parts of slow-release initiator fixed by nano-silica.

[0037] The preparation method of above-mentioned anti-aging polymer waterproof building coating, comprises the steps:

[0038] Step 1. After mixing silicone methacrylate and ethyl acetate at a molar ratio of 1:5, adjust the pH of the mixture to 3 with an acidic reagent, stir and disperse evenly to form a silica sol, and then add laurel peroxide Acyl (LPO) and n-dodecyl mercaptan were added to the silica sol, and the molar ratio of peroxide, n-do...

Embodiment 3

[0042] An aging-resistant polymer waterproof architectural coating, said aging-resistant polymer waterproof architectural coating consists of 150 parts of styrene-butadiene rubber emulsion, 30 parts of urea-formaldehyde resin, 30 parts of melamine resin, 20 parts of polypropylene fiber, 15 parts of methacrylate, 10 parts of high-alumina high-iron cement, 15 parts of kaolin, 8 parts of nano-zinc oxide, parts of glutinous rice flour, and 5 parts of slow-release initiator fixed by nano-silica.

[0043] The preparation method of above-mentioned anti-aging polymer waterproof building coating, comprises the steps:

[0044] Step 1. Mix organosilicon methacrylate and ethyl acetate at a molar ratio of 1:4, then adjust the pH of the mixture to 2 with an acidic reagent, stir and disperse evenly to form a silica sol, and then mix the peroxide Add silica sol for benzoyl peroxide (BPO) and n-dodecyl mercaptan, wherein the molar ratio of peroxide, n-dodecyl mercaptan and organosilicon ester ...

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Abstract

The invention relates to the technical field of architectural coatings and their preparation, in particular to an aging-resistant polymer waterproof architectural coating and a preparation method thereof. The waterproof architectural coating includes: polymer emulsion, urea-formaldehyde resin, melamine resin, polypropylene fiber, methacrylic acid Esters, inorganic gels, inorganic fillers, nanopowders, tougheners, slow-release initiators. The preparation method includes: adding peroxide and n-dodecyl mercaptan to the silica sol, aging and freeze-drying to obtain a slow-release initiator; then mixing the raw materials of the initiator according to the weight ratio and then dispersing them evenly , and then add a slow-release initiator, stir and disperse, and vacuum defoam to obtain an aging-resistant polymer waterproof architectural coating. The invention solves the problem of aging-resistant crossover of the polymer cement waterproof coating in the prior art, and provides an anti-aging polymer waterproof architectural coating that improves the acid and alkali resistance and aging resistance of the coating, and also greatly improves the water impermeability of the coating .

Description

technical field [0001] The invention relates to the technical field of architectural coatings and their preparation, in particular to an aging-resistant polymer waterproof architectural coating and a preparation method thereof. Background technique [0002] Polymer cement waterproof coating (referred to as JS waterproof coating), JS waterproof coating is composed of a certain proportion of organic polymer emulsion (such as acrylate emulsion, ethylene-vinyl acetate emulsion, styrene-butadiene latex and various additives) and inorganic powder (such as ordinary silicon / high-aluminum high-iron cement, quartz powder and additives, etc.) are uniformly blended and stirred, and a high-strength and tough waterproof coating film is formed through the hydration reaction of the inorganic powder and the cross-linking and curing of the water-based emulsion. Polymer cement waterproof coating is a two-component, water-based building waterproof coating made of inorganic powder composed of ce...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D4/02C09D4/06C09D7/61C09D7/65
CPCC09D4/06C09D7/61C09D7/65C09D7/70
Inventor 陈长仙
Owner 陈长仙