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Coating

A coating and slurry technology, which is applied in alginic acid coatings, anti-fouling/underwater coatings, coatings, etc., can solve the problems of VOC emission exceeding the standard, coating VOC emission exceeding the standard, and affecting the adsorption of harmful gases by diatomite. Achieve the effect of excellent formaldehyde purification function

Active Publication Date: 2017-07-18
JILIN JIANZHU UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this product has not yet been popularized and applied in the market. First, because most of the film-forming substances of current water-based liquid paints are polymer resin emulsions. Membrane, when the amount of emulsion is too much, the pores of diatomite will be covered by dense polymer film, which will affect the adsorption of harmful gases by diatomite, and then affect the air purification performance of diatom coating. Second, the emulsion and auxiliary materials used in the preparation of coating The VOC emission of paint is easy to exceed the standard, which eventually leads to the excessive VOC emission of paint

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0071] 2mol / L sodium hydroxide solution was added dropwise in the titanyl sulfate solution of 1.2mol / L until the pH value was 7 to obtain a white orthotitanic acid precursor, which was washed with deionized water until it was washed with 5% chlorinated Barium does not detect the presence of sulfate ions. Add urea according to the Ti / N molar ratio of 1 / 4, place in an oven at 80°C to dry, grind, place in a muffle furnace, heat up to 500°C at a rate of 20°C / min, and hold for 1 hour to obtain nitrogen-doped Heterogeneous Nano TiO 2 powder.

[0072] Weigh 200 parts of deionized water, 0.3 parts of dispersant, 100 parts of diatomaceous earth, nitrogen-doped nano-TiO 2 Add 3 to 9 parts into the dispersion tank in turn, and disperse at high speed for 20 to 40 minutes to obtain diatomite / nano-TiO 2 Composite slurry.

[0073] Take gelatin, sodium alginate, guar gum, carrageenan and water in proportion, swell at room temperature for 30 minutes, then add a dispersant, heat and stir a...

Embodiment 2

[0077] The coating was prepared according to the method of Example 1.

[0078] Different from Example 1, the composition of the coating is (mass content): propylene glycol 1.0%, dispersant 1.6%, preservative 0.1%, defoamer 0.3%, thickener A0.35%, titanium dioxide 6%, Diatomaceous earth / nano TiO 2 Composite slurry 45%, heavy calcium powder 21.5%, multifunctional additive 0.2%, bio-glue 15%, thickener B 0.3%, thickener C 0.15%, and the balance is deionized water.

Embodiment 3

[0080] The coating was prepared according to the method of Example 1.

[0081] Different from Example 1, the composition of the coating is (mass content): propylene glycol 1.1%, dispersant 1.8%, preservative 0.15%, defoamer 0.4%, thickener A0.4%, titanium dioxide 5%, Diatomaceous earth / nano TiO 2 Composite slurry 54%, heavy calcium powder 18%, multifunctional additive 0.25%, composite biological glue 18%, thickener B 0.35%, thickener C 0.16%, and the balance is deionized water.

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PUM

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Abstract

The invention provides a coating, which is prepared from the following components 30 to 60 parts of kieselguhr slurry, 10 to 20 parts of compound biogel, 0.6 to 1.2 parts of propylene glycol, 1.3 to 1.8 parts of dispersing agent, 0.25 to 0.45 part of thickening agent A, 0.05 to 0.25 part of preservative, 0.2 to 0.6 part of defoaming agent, 24 to 45 parts of pigment filler, 0.1 to 0.3 part of multifunctional additive, 0.18 to 0.36 part of thickening agent B, 0.09 to 0.24 part of thickening agent C, and water. Compared with the prior art, the diatom liquid coating provided by the invention adopts the biogel as a base material, the biogel does not contain hazardous substances such as formaldehyde, and the VOC (Volatile Organic Compound) content is zero, so that the VOC emission of the diatom liquid coating provided by the invention tends to zero. The biogel is adopted as the base material, so that an emulsion is prevented from affecting an adsorption characteristic of kieselguhr holes after being dried to form a film, and the provided diatom coating has an excellent formaldehyde purification function.

Description

technical field [0001] The invention relates to the technical field of architecture, in particular to a paint. Background technique [0002] At present, the development of interior wall architectural coatings is developing in the direction of multi-functional and environment-friendly green architectural coatings on the basis of the original decorative function. Multi-functionality means that besides the decorative function, the coating also has health functions such as energy saving, humidity adjustment, deodorization, antibacterial and mildew resistance, air purification, sound insulation, and shielding of harmful electromagnetic waves. [0003] In recent years, diatom mud wall materials have become more and more popular in the Chinese market because of their environmental protection functionality and artistic beauty, and they have a third share of the world with latex paint and wallpaper. However, the diatom mud coating is a powder material, which needs to be mixed with w...

Claims

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Application Information

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IPC IPC(8): C09D105/00C09D105/04C09D189/00C09D5/14C09D5/02C09D7/12
CPCC08K2003/2241C08K2003/265C08K2201/011C08K2201/014C08L2205/02C08L2205/025C08L2205/035C09D5/024C09D5/025C09D5/14C09D105/00C08L5/00C08L5/04C08L89/00C08K13/04C08K7/26C08K3/22C08K3/26
Inventor 王立艳盖广清
Owner JILIN JIANZHU UNIVERSITY