Coating prepared by industrial waste of microsilica and preparation methods of coating

A technology of industrial waste and micro-silica fume is applied in the field of architectural decorative coatings to achieve the effect of low cost and good adhesion

Active Publication Date: 2012-11-14
贵州皓科新型材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

my country currently has thousands of ferrosilicon and industrial silicon furnaces, with an annual output of about 250,000 tons of micro-silicon fume, but now only about 60,000 tons are collected by environmental protection equipment, and a large amount of micro-silicon fume is discharged into the atmosphere, directly polluting Environmental pollution, but also a waste of resources
The ones that have been collected are also piled up and left idle due to low utilization rate, occupying storage

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] Formula: styrene-acrylic emulsion 100kg, water 390kg, microsilica fume 479kg, film-forming aid 5kg, dispersant 7kg, wetting agent 1kg, defoamer 4kg, rheology modifier 10kg, acid-base adjustment Agent 2kg, preservative 2kg.

[0047] Preparation: Prepare according to one of the above-mentioned preparation methods.

[0048] Explanation: This formula has fewer base materials and more microsilica fume, which is beneficial to consume a large amount of microsilica fume. There are no other pigments and fillers, and the coating film is dull and dark gray. It is suitable for the alkaline base surface of the building, used as a primer, with good adhesion and low cost.

[0049]

Embodiment 2

[0051] Formula: styrene-acrylic emulsion 300kg, water 250kg, microsilica fume 406kg, film-forming aid 18kg, dispersant 7kg, wetting agent 1kg, defoamer 4kg, rheology modifier 10kg, acid-base adjustment Agent 2kg, preservative 2kg.

[0052] Preparation: Prepare according to one of the above-mentioned preparation methods.

[0053] Description: The amount of base material in this formula is moderate, the amount of microsilica is relatively large, there are no other pigments and fillers, and the coating film is matte dark gray. It is suitable for the alkaline base surface of the building and used as a primer with good performance and low cost.

[0054]

Embodiment 3

[0056] Formula: 500kg of silicon-acrylic emulsion, 200kg of water, 165kg of micro-silica fume, 20kg of rutile titanium dioxide, 60kg of 800 mesh talcum powder, 35kg of film-forming aid, 2kg of dispersant, 1kg of wetting agent, defoamer 6 kg, rheology modifier 7 kg, acid-base regulator 2 kg, preservative 2 kg.

[0057] Preparation: Prepare according to one of the above-mentioned preparation methods.

[0058] Description: This formula has a large amount of base material and moderate amount of silica fume. The coating film is light gray and has a certain covering power. It is suitable for the alkaline base surface of the building and used as a primer with excellent performance.

[0059]

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PUM

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Abstract

The invention relates to a coating prepared by an industrial waste of microsilica and preparation methods of the coating, belonging to the field of decorative materials. The coating comprises the following components in percentage by weight: 5-90 percent of substrate, 1-70 percent of microsilica, 0-10 percent of an adjuvant, 0-30 percent of pigment, 0-60 percent of a filler, 0-60 percent of a diluent and 0-40 percent of color paste. Moreover, the invention provides the two preparation methods. The industrial waste of microsilica is fully utilized and is changed into valuables, thus the environment pressure is reduced; and due to cheap raw materials, the coating has relatively good cost advantage, and the coating also has the advantages of compactness in structure, good gap-filling effect, firm attachment and delicate color.

Description

technical field [0001] The invention relates to a building material, in particular to a building decoration coating, and also to a preparation method thereof. [0002] Background technique: [0003] In the current coating technology, typical coatings are composed of base materials, pigments, fillers, additives, diluents, and color pastes. There are no reports and practices of using industrial waste microsilica. [0004] During the high-temperature smelting of industrial silicon and ferrosilicon, the dust that escapes with the exhaust gas is called micro-silica fume, and its main component is SiO 2 , SiO in flue gas 2 The content accounts for about 94% of the total smoke. Its particle size is very small, with an average particle size of about 0.3um. It can directly enter the alveoli of the human body through breathing, and is extremely harmful to human health. my country currently has thousands of ferrosilicon and industrial silicon furnaces, with an annual output of abo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D201/00C09D7/12
Inventor 谢新林熊海罗昌文易思梅
Owner 贵州皓科新型材料有限公司
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