Water-tolerant inorganic coating and preparation method thereof

A technology of inorganic coatings and raw materials, applied in the field of water-resistant inorganic coatings and their preparation, can solve the problems of easy bubbles, peeling off, and rainwater erosion of external wall coatings, so as to achieve long-term bright and new walls, high water resistance and durability, and mixing. High degree of uniformity

Active Publication Date: 2016-07-06
广东施彩新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The current inorganic coatings are basically silicate film-forming substances, which have poor water resistance and cannot be washed away by rainwater for years and months when applied to the exterior wall. If the rain lasts for a long time, the exterior wall coating is prone to air bubbles , easy to fall off after drying, causing mottled exterior walls, and easy to fall off exterior wall paint is equivalent to falling objects that may fall off at any time, seriously endangering human health.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0062] A water-resistant inorganic coating mainly composed of the following raw materials by weight:

[0063] 0.3 parts of hydrophobically modified hydroxyethyl cellulose

[0064] 2 parts of multifunctional additives

[0065] 2.5 parts of dispersant

[0066] 2 parts of wetting agent

[0067] 25 parts of titanium dioxide

[0068] 80 parts heavy calcium carbonate

[0069] 20 parts of silicone acrylic emulsion

[0070] 2.5 parts of film forming aid

[0071] 0.2 parts of defoamer

[0072] 75 parts of potassium silicate

[0073] Thickener 0.5 parts

[0074] 6 parts of coupling agent

[0075] 80 parts of water.

[0076] The dispersant is a mixture of ammonium salt dispersant and silicate dispersant, and the mixing weight ratio is 1:1.5.

[0077] The thickener is a polyurethane thickener.

[0078] The multifunctional auxiliary agent is purchased from AMP-95 of Angus.

[0079] The coupling agent is a silane coupling agent.

[0080] The viscosity of the hydrophobically modified hydroxyethyl cellulose is 3000...

Embodiment 2

[0089] A water-resistant inorganic coating mainly composed of the following raw materials by weight:

[0090] 1.8 parts of hydrophobically modified hydroxyethyl cellulose

[0091] Multifunctional additives 0.5 parts

[0092] 5.5 parts of dispersant

[0093] Wetting agent 0.5 parts

[0094] 36 parts of titanium dioxide

[0095] 75 parts heavy calcium carbonate

[0096] 40 parts of silicone acrylic emulsion

[0097] 1.5 parts of film forming aid

[0098] 0.8 parts of defoamer

[0099] 55 parts of potassium silicate

[0100] Thickener 2 parts

[0101] Coupling agent 4 parts

[0102] 80 parts of water.

[0103] The dispersant is a mixture of ammonium salt dispersant and silicate dispersant, and the mixing weight ratio is 3:2.5.

[0104] The thickener is a polyurethane thickener.

[0105] The multifunctional auxiliary agent was purchased from Deqian MA-95.

[0106] The coupling agent is a silane coupling agent.

[0107] The viscosity of the hydrophobically modified hydroxyethyl cellulose is 30000 cps.

[...

Embodiment 3

[0116] A water-resistant inorganic coating mainly composed of the following raw materials by weight:

[0117] 1 part of hydrophobically modified hydroxyethyl cellulose

[0118] Multifunctional additives 1 part

[0119] Dispersant 3.5 parts

[0120] Wetting agent 1.5 parts

[0121] 30 parts of titanium dioxide

[0122] 78 parts heavy calcium carbonate

[0123] 30 parts of silicone acrylic emulsion

[0124] 2 parts of film forming aids

[0125] 0.5 parts of defoamer

[0126] 65 parts of potassium silicate

[0127] Thickener 1.5 parts

[0128] Coupling agent 5 parts

[0129] 85 parts of water.

[0130] The dispersant is a mixture of ammonium salt dispersant and silicate dispersant, and the mixing weight ratio is 2:1.5.

[0131] The thickener is a polyurethane thickener.

[0132] The multifunctional auxiliary agent is purchased from AMP-95 of Angus.

[0133] The coupling agent is a silane coupling agent.

[0134] The viscosity of the hydrophobically modified hydroxyethyl cellulose is 30000 cps.

[0135] ...

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PUM

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Abstract

The invention relates to the technical field of inorganic coating preparation, and in particular to a water-tolerant inorganic coating and a preparation method thereof. The preparation method comprises the following steps: reasonably compounding hydrophobic modified cellulose, multifunctional additives, a defoaming agent, a dispersing agent, a wetting agent, titanium dioxide, coarse whiting, silicone acrylic emulsion, a coalescing agent, potassium silicate, a thickening agent, a coupling agent and water, and adding and mixing the components in different steps, thereby obtaining the water-tolerant inorganic coating. The water-tolerant inorganic coating has the characteristics of being good in water tolerance, good in weather resistance and good in adhesion property.

Description

Technical field [0001] The invention relates to the technical field of inorganic coating preparation, in particular to a water-resistant inorganic coating and a preparation method thereof. Background technique [0002] Inorganic coating is a kind of coating with inorganic material as the main film-forming substance. It is the abbreviation of all-inorganic mineral coating and is widely used in daily life fields such as construction and painting. Commonly used coatings in construction projects are aqueous dispersions of alkali metal silicate solutions and colloidal silica. With the above two film-forming substances, silicate and silica sol (colloidal silica) inorganic coatings can be made. Inorganic coatings are made of inorganic polymers and dispersed and activated metals, metal oxide nanomaterials, and rare earth ultrafine powders. The inorganic polymer coating composed of solid body can quickly react with the iron atoms on the surface of the steel structure to form an inorganic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/26
CPCC04B28/26C04B2111/27C04B24/383C04B2103/408C04B14/305C04B14/28C04B24/40C04B24/28
Inventor 叶邦君钟小秋
Owner 广东施彩新材料科技有限公司
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