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A kind of exterior wall inorganic coating for tropical island and reef buildings

A technology for building exterior walls and inorganic coatings, used in antifouling/underwater coatings, coatings, and biocide-containing paints, etc. It can meet the needs of long-term use of the exterior walls of tropical islands and reefs, and achieve the effect of excellent photocatalytic effect and low price.

Active Publication Date: 2019-01-25
YANCHENG INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the film-forming process of silica sol inorganic coatings is a dehydration and polycondensation process. Due to excessive cohesion, it is easy to cause cracks or even large-scale peeling off of the coatings. Poor storage stability
At the same time, silica sol and silicate coatings are also more expensive
None of the existing polymer organic or inorganic coatings can fully meet the needs of long-term use of the exterior walls of tropical islands and reefs

Method used

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  • A kind of exterior wall inorganic coating for tropical island and reef buildings
  • A kind of exterior wall inorganic coating for tropical island and reef buildings
  • A kind of exterior wall inorganic coating for tropical island and reef buildings

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Its basic composition includes the following components by mass percentage:

[0017]

[0018] The silicon-acrylic emulsion and nano-silica dispersion are commercially available products without special requirements.

[0019] The film-forming aids (AMP-95 multifunctional additive, defoamer, leveling agent, thickener, antifreeze and dispersant) are all commercially available products without special requirements.

[0020] Nano-silica dispersion, black tin dioxide powder and vinyltrimethoxysilane, ultrasonic dispersion for 10 minutes, adding silicon acrylic emulsion and stirring for 20 minutes, adding film-forming aids and stirring for 20 minutes; finally adding calcium carbonate and making up moisture, and grind for 20 minutes to obtain an inorganic coating for the exterior walls of tropical island and reef buildings.

Embodiment 2

[0022] Its basic composition includes the following components by mass percentage:

[0023]

[0024] The silicon-acrylic emulsion and nano-silica dispersion are commercially available products without special requirements.

[0025] The film-forming aids (AMP-95 multifunctional additive, defoamer, leveling agent, thickener, antifreeze and dispersant) are all commercially available products without special requirements.

[0026] Nano-silica dispersion, black tin dioxide powder and vinyltrimethoxysilane, ultrasonic dispersion for 10 minutes, adding silicon acrylic emulsion and stirring for 20 minutes, adding film-forming aids and stirring for 20 minutes; finally adding calcium carbonate and making up moisture, and grind for 20 minutes to obtain an inorganic coating for the exterior walls of tropical island and reef buildings.

Embodiment 3

[0028] Its basic composition includes the following components by mass percentage:

[0029]

[0030]

[0031] The silicon-acrylic emulsion and nano-silica dispersion are commercially available products without special requirements.

[0032] The film-forming aids (AMP-95 multifunctional additive, defoamer, leveling agent, thickener, antifreeze and dispersant) are all commercially available products without special requirements.

[0033] Nano-silica dispersion, black tin dioxide powder and vinyltrimethoxysilane, ultrasonic dispersion for 10 minutes, adding silicon acrylic emulsion and stirring for 20 minutes, adding film-forming aids and stirring for 20 minutes; finally adding calcium carbonate and making up moisture, and grind for 20 minutes to obtain an inorganic coating for the exterior walls of tropical island and reef buildings.

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PUM

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Abstract

The invention discloses an outer wall inorganic coating for tropical island buildings. The outer wall inorganic coating basically comprises, by weight percentage, 5-20% of silicone acrylic emulsion, 20-80% of nano-silica dispersing liquid, 1-3% of coupling agent, 2-6% of black tin dioxide powder, 1-5% of film-forming auxiliary, 10-20% of inorganic filler and the balance of deionized water, wherein the weight percentage of the outer wall inorganic coating is 100%. The outer wall inorganic coating has the advantages that the main film-forming substance of the outer wall inorganic coating is the nano-silica dispersing liquid, and the outer wall inorganic coating has the high temperature resistance, high humidity resistance, salt mist resistance and ultraviolet aging resistance of common inorganic coating; meanwhile, the silicone acrylic emulsion is mixed with the nano-silica dispersing liquid to allow organic polymer to be evenly distributed in the gaps between inorganic coating layers, the shrinkage of a coating film is buffered when the coating film is subjected to alternated cooling and heating, the coating film has certain elasticity, the formed coating film has the features of inorganic and organic coating, and the defects of the inorganic and organic coating are overcome; the added black tin dioxide powder has good photocatalytic activity and can generate an oxidation effect under the effect of sunlight, and effects of sterilizing, self-cleaning and mildew preventing are achieved.

Description

technical field [0001] The invention belongs to the technical field of architectural coatings, and relates to an inorganic coating for exterior walls of tropical island and reef buildings. Background technique [0002] Tropical island and reef buildings are in a natural environment of high temperature, high humidity, high salinity and high-intensity ultraviolet rays. The coatings used for the exterior walls of tropical island and reef buildings must meet the requirements of high temperature resistance, high humidity resistance, salt spray resistance, and UV aging resistance. During long-term use, there will be no mildew, blackening, or odor due to mold reproduction. [0003] In the high-temperature and high-humidity environment of the tropical island and reef environment, the exterior wall coatings with organic polymers as film-forming substances are prone to stick back, and may grow moldy and smelly due to the appearance of mold; at the same time, under high ultraviolet int...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D133/04C09D1/00C09D5/14
CPCC09D1/00C09D5/14C09D143/04
Inventor 侯贵华时士猛代少俊张峰许宁张勤芳姜瑞雨
Owner YANCHENG INST OF TECH
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