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Environment-friendly coating

A technology of environmentally friendly coatings and raw materials, applied in epoxy resin coatings, polyester coatings, antifouling/underwater coatings, etc., can solve the problems of unbearable odor, insufficient effective exposed area, high content of free formaldehyde, etc., and achieve good antibacterial effect , Long-term effect of removing formaldehyde

Active Publication Date: 2020-12-22
佛山威迪科彩色装饰涂料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In the prior art, the materials used to remove formaldehyde by adsorption are mostly activated carbon, but the effective exposed area is not enough and the cost is high
[0007] Chinese invention patent ZL2017112704875 uses silver loading to modify and activate activated carbon. The raw material contains anions, and the cost of raw materials is relatively high. In addition, there is a shortcoming that the removal of formaldehyde is not long-lasting.
[0008] Existing decorative coatings have high content of free monomers and free formaldehyde, which often cause coughing, sore throat, and unbearable odor after decoration, causing serious damage to the human respiratory tract

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0065] A preparation method of formaldehyde-removing activated carbon, comprising the following steps:

[0066] (1) acidification: mix coal-based activated carbon with citric acid, the mass ratio of the activated carbon and citric acid is 75:1, and dry at a temperature of 120 ° C for 6 hours to obtain acidified activated carbon;

[0067] (2) Attached graphene: the above-mentioned acidified activated carbon is stirred and mixed with graphene oxide, titanium dioxide, and ethanol, and then dried at 80° C. for 30 hours to obtain graphene-modified activated carbon;

[0068] The mass ratio of the acidified activated carbon, graphene oxide, titanium dioxide and ethanol is 2000:2:4:200;

[0069] (3) carbonization: the graphene modified activated carbon is carbonized to obtain carbonized activated carbon;

[0070] In the carbonization step, the negative pressure is controlled at 70Pa, and the carbonization is performed at a temperature of 500°C for 2 hours;

[0071] (4) Activation: a...

Embodiment 2

[0100] A preparation method of formaldehyde-removing activated carbon, comprising the following steps:

[0101] (1) acidification: mix coal-based activated carbon with citric acid, the mass ratio of the activated carbon and citric acid is 75:1, and dry at a temperature of 120 ° C for 6 hours to obtain acidified activated carbon;

[0102] (2) Attached graphene: the above-mentioned acidified activated carbon is stirred and mixed with graphene oxide, manganese dioxide, and ethanol, and then dried at 80° C. for 30 hours to obtain graphene-modified activated carbon;

[0103] The mass ratio of the acidified activated carbon, graphene oxide, manganese dioxide and ethanol is 2000:2:4:200;

[0104] (3) carbonization: the graphene modified activated carbon is carbonized to obtain carbonized activated carbon;

[0105] In the carbonization step, the negative pressure is controlled at 70Pa, and the carbonization is performed at a temperature of 500°C for 2 hours;

[0106] (4) Activation:...

Embodiment 3

[0108] A preparation method of formaldehyde-removing activated carbon, comprising the following steps:

[0109] (1) acidification: mix coal-based activated carbon with citric acid, the mass ratio of the activated carbon and citric acid is 75:1, and dry at a temperature of 120 ° C for 6 hours to obtain acidified activated carbon;

[0110] (2) Attached graphene: the above-mentioned acidified activated carbon is stirred and mixed with graphene oxide, titanium dioxide, manganese dioxide, and ethanol, and then dried at 80° C. for 30 hours to obtain graphene-modified activated carbon;

[0111] The mass ratio of the acidified activated carbon, graphene oxide, titanium dioxide, manganese dioxide and ethanol is 2000:2:3:1:200;

[0112] (3) carbonization: the graphene modified activated carbon is carbonized to obtain carbonized activated carbon;

[0113] In the carbonization step, the negative pressure is controlled at 70Pa, and the carbonization is performed at a temperature of 500°C ...

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PUM

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Abstract

The invention discloses an environment-friendly coating. The environment-friendly coating is prepared from the following raw materials in parts by weight: 35-55 parts of polyester resin,; 20-30 partsof epoxy resin, 15-25 parts of titanium dioxide, 2-8 parts of barium sulfate, 1-5 parts of formaldehyde-removing activated carbon, 0.2-0.8 part of a leveling agent, and 0.2-0.8 part of a defoaming agent. The above raw materials are uniformly mixed and are then subjected to extrusion by an extruder, cooling and crushing to obtain the environment-friendly coating. The environment-friendly coating disclosed by the invention has a relatively good antibacterial effect and can remove formaldehyde for a long time.

Description

technical field [0001] The present invention relates to an environment-friendly paint. Background technique [0002] The paint industry has become an important part of a country's national economy, and the paint output and per capita output have become one of the important symbols for measuring the economic level of contemporary countries in the world. However, the paint industry itself has the characteristics of polluting the environment. This has aroused great concern of the whole society. Therefore, vigorously developing environmentally friendly coatings is the general trend of the world's coatings development. [0003] The main hazard of formaldehyde is the stimulation of skin and mucous membranes. When formaldehyde reaches a certain concentration indoors, people will feel uncomfortable. Greater than 0.08m 3 High formaldehyde concentration can cause eye redness, itching, throat discomfort or pain, hoarseness, sneezing, chest tightness, asthma, dermatitis, etc. Newly...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D167/00C09D163/00C09D5/14C09D7/62C09D7/63B01J20/20B01J20/30B01J20/34B01D53/02B01D53/72B01D53/86
CPCB01D53/02B01D53/8668B01D2253/102B01D2255/20707B01D2255/2073B01D2255/802B01D2257/704B01D2259/804B01J20/06B01J20/20B01J20/205B01J20/3078B01J20/3416B01J20/345C08K2003/2241C08K2003/3045C09D5/14C09D167/00C09D7/62C09D7/63C09D7/70C08L63/00C08K13/06C08K9/12C08K5/3445C08K9/02C08K7/24C08K3/22C08K3/30
Inventor 张艺峰
Owner 佛山威迪科彩色装饰涂料有限公司
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