High-water-resistance silicate coating and preparation method thereof

A silicate and coating technology, used in alkali metal silicate coatings, epoxy resin coatings, coatings, etc., can solve the problems of easy damage to the surface structure and poor water resistance, achieve obvious dispersion effect and improve storage stability performance effect

Pending Publication Date: 2021-08-31
QINGDAO UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention: Aiming at the problem that the current silicate coating has poor water resistance and the surface structure is easily damaged, a highly water-resistant inorganic silicate coating and its preparation method are proposed

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A high-water-resistant silicate coating, a weight fraction of the total, including 4 parts of aluminum oxide, 2 parts of titanium dioxide, methyltrioxorhenium 0.5 parts of methyl silane, 14 parts of potassium-modified silicone resin (an aqueous epoxy added in an amount of 15% of potassium silicate resin modified resin), 1 part of a leveling agent, 8 parts of deionized water, 1 part of a hydrophobic agent, 1 part of wetting and dispersing agent, 0.8 parts stabilizer; wherein a weight fraction of the total, 2.1 parts of the aqueous epoxy resin, 0.5 parts of a silane coupling agent, 0.5 parts of isopropyl alcohol, 0.5 parts of magnesium oxide, 4.5 parts of potassium silicate, 4.5 parts of deionized water, 1.4 parts of silica sol, modified potassium silicate resin steps:

[0021] A: Slowly add aqueous epoxy resin, silane coupling agent, iscyclone, stirring, and produce an epoxy resin polymer emulsion;

[0022] B: Add potassium silicate, silica sol, stirring with a water bath, s...

Embodiment 2

[0025] A high-water-resistant silicate coating, a weight fraction of the total, comprising 3 parts of aluminum oxide, 2 parts of titanium dioxide, methyltrioxorhenium 0.5 parts of methyl silane, 14 parts of potassium-modified silicone resin (an aqueous epoxy 20% of total addition amount of the modified silicone resins potassium), 1 part of a leveling agent, 8 parts of deionized water, 1 part of a hydrophobic agent, 1 part of wetting and dispersing agent, 0.8 parts stabilizer; wherein a weight fraction of the total, 2.8 parts of the aqueous epoxy resin, 0.2 parts of a silane coupling agent, 0.5 parts of isopropyl alcohol, 0.5 parts of magnesium oxide, 4 parts of potassium silicate, 4.5 parts of deionized water, 1.5 parts of silica sol, modified potassium silicate resin steps:

[0026] A: Slowly add aqueous epoxy resin, silane coupling agent, iscyclone, stirring, and produce an epoxy resin polymer emulsion;

[0027] B: Add potassium silicate, silica sol, stirring with a water bath, ...

Embodiment 3

[0030] A high-water-resistant silicate coating, a weight fraction of the total, comprising 3 parts of aluminum oxide, 2 parts of titanium dioxide, methyltrioxorhenium 0.5 parts of methyl silane, 14 parts of potassium-modified silicone resin (an aqueous epoxy added in an amount of 15% of potassium silicate resin modified resin), 1 part of a leveling agent, 9 parts of deionized water, 0 parts of a hydrophobic agent, 1 part of wetting and dispersing agent, 0.8 parts stabilizer; wherein a weight fraction of the total, 2.1 parts of the aqueous epoxy resin, 0.5 parts of a silane coupling agent, 0.5 parts of isopropyl alcohol, 0.5 parts of magnesium oxide, 4.5 parts of potassium silicate, 4.5 parts of deionized water, 1.4 parts of silica sol, modified potassium silicate resin steps:

[0031] A: Slowly add aqueous epoxy resin, silane coupling agent, iscyclone, stirring, and produce an epoxy resin polymer emulsion;

[0032] B: Add potassium silicate, silica sol, stirring with a water bath,...

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Abstract

The invention discloses a high-water-resistance silicate coating and a preparation method thereof. The coating is composed of a film-forming substance modified potassium silicate resin, a high-temperature-resistant pigment, a filler, an auxiliary agent and water. The preparation method of the coating comprises the steps: firstly, preparing modified potassium silicate resin from water-borne epoxy resin, a silane coupling agent, isopropyl-ketone, magnesium oxide, potassium silicate, silica sol and deionized water according to a specific ratio and steps; treating pigment filler in a specific way; and dispersing and grinding the prepared modified potassium silicate resin, a water repellent agent, the treated high-temperature-resistant pigment and a metal oxide, and finally adding an auxiliary agent and water for stirring to prepare the high-water-resistance silicate coating. The coating is convenient to construct, low in coating VOC emission, high in adhesive force and high in water resistance, and is an excellent choice for coating in the field of water resistance.

Description

Technical field [0001] The present invention belongs to the field of coating technology, particularly to a high water silicate coating formulation and preparation method. Background technique [0002] Silicate coating is a potassium silicate and sodium silicate as a film forming material-based paint, which comprises a main component of film forming materials, a curing agent, pigments and fillers and adjuvants and the like; inorganic silicate coating solids content will increase with decreasing moisture, siloxane bonds step polymerization to form a multimeric silica gel, and the final composition of the silica network structure, which has excellent weather resistance, has a good chemical stability under UV irradiation, readily decomposed, It also has excellent heat resistance, good film formability and stain resistance; and when the coating with water, part of the metal ions dissolved in water, to gradually replace the water molecules caused by the position of a metal ion absorben...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D1/04C09D163/00C09D7/61C09D7/63
CPCC09D1/04C09D163/00C09D7/61C09D7/63
Inventor 朱开兴隋玮红李松梅
Owner QINGDAO UNIV OF SCI & TECH
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