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A kind of paint with formaldehyde purification function and preparation method thereof

A formaldehyde purification and functional technology, applied in the field of air purification, can solve problems such as unsatisfactory formaldehyde removal effect, inability to achieve elimination, and inability to continue, so as to eliminate the risk of secondary pollution, enhance the ability to remove formaldehyde, and the preparation process. Simple and easy effects

Active Publication Date: 2020-06-23
苏州麦茂思传感技术有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Chinese invention patent CN 102002290 A discloses a formaldehyde-resistant interior wall coating, in which the functional material is diatomite with a porous structure, but this type of functional material can only achieve the adsorption of formaldehyde, and cannot achieve the purpose of elimination
Chinese invention patent CN 104629516 A discloses a paint capable of removing formaldehyde, in which the formaldehyde removal component is a double-substituted enol, which can absorb formaldehyde through hydrogen bond association or remove formaldehyde through the reaction between enol hydroxyl and formaldehyde, but The hydrogen bond association is weak and easily affected by the external environment, and the stability is poor, which leads to the desorption of the adsorbed formaldehyde, causing secondary pollution, and the reaction between the enol hydroxyl group and formaldehyde usually needs to be carried out in an alkaline environment , under the premise that no alkaline substance is provided in the paint and the air contains carbon dioxide, the above reaction will not continue, which will affect the long-term purification effect of formaldehyde
Chinese invention patent CN 104845481 A discloses a formaldehyde-removing environmental protection coating, in which the formaldehyde trapping agent is a 2-imidazolidinone compound, which not only has an unsatisfactory removal effect on formaldehyde, but also cannot satisfy long-term and high-efficiency absorption formaldehyde requirements, and has irritating effects on the eyes, skin and mucous membranes (such as respiratory mucous membranes), improper use will pose a potential threat to human health

Method used

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  • A kind of paint with formaldehyde purification function and preparation method thereof
  • A kind of paint with formaldehyde purification function and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Embodiment 1: Preparation of coating with formaldehyde purification function.

[0033] 1) Add 1g of polyvinylpyrrolidone to 500g of deionized water, stir mechanically at 80°C to dissolve the polyvinylpyrrolidone, then add 1g of polyacrylamide, continue stirring at constant temperature to dissolve the polyacrylamide, and obtain solution A;

[0034] 2) Mix 1g of titanium dioxide, 1g of tin dioxide, 1g of silicon dioxide, 2g of magnesium oxide, 1g of activated carbon, 1g of sodium carbonate and 4g of 1,2-dimethylaminoethanol to obtain mixture B;

[0035]3) Add the mixture B obtained in step 2) to the solution A obtained in step 1), and disperse evenly by means of mechanical stirring to obtain mixture C, which is filtered through a 200-mesh filter to obtain a formaldehyde scavenger;

[0036] 4) Add the formaldehyde scavenger obtained in step 3) to 1.8kg of water-based silicone acrylic resin, disperse at a speed of 1500rpm, add 30g of emulsified silicone oil during the dispe...

Embodiment 2

[0037] Embodiment 2: Preparation of coating with formaldehyde purification function.

[0038] 1) Add 13g of polyvinylpyrrolidone into 6.5kg of absolute ethanol, stir mechanically at 60°C to dissolve the polyvinylpyrrolidone, then add 10g of polyethylene oxide, and continue stirring at constant temperature to dissolve the polyethylene oxide to obtain solution A;

[0039] 2) Mix 7g of titanium dioxide, 6g of tin dioxide, 5g of silicon dioxide, 6g of magnesium oxide, 13g of activated carbon, 9g of sodium bicarbonate and 42g of 1,2-diethylaminoethanol to obtain mixture B;

[0040] 3) Add the mixture B obtained in step 2) to the solution A obtained in step 1), and disperse evenly by means of mechanical stirring to obtain mixture C, which is filtered through a 300-mesh filter to obtain a formaldehyde scavenger;

[0041] 4) Add the formaldehyde scavenger obtained in step 3) to 5.5kg of water-based acrylic resin, disperse at a speed of 1000rpm, add 400g of polydimethylsiloxane during ...

Embodiment 3

[0042] Embodiment 3: Preparation of coating with formaldehyde purification function.

[0043] 1) Add 2g of polyvinylpyrrolidone into 1.6kg of deionized water, stir magnetically at 25°C to dissolve the polyvinylpyrrolidone, then add 2g of polymethacrylic acid, and continue stirring at a constant temperature to dissolve the polymethacrylic acid to obtain solution A;

[0044] 2) Mix 4g of titanium dioxide, 4g of tin dioxide, 4g of silicon dioxide, 3g of magnesium oxide, 3g of activated carbon, 2g of sodium sulfite and 10g of 1,2,2-triphenyl-1,2-diaminoethanol to obtain mixture B;

[0045] 3) Add the mixture B obtained in step 2) to the solution A obtained in step 1), and disperse evenly by means of magnetic stirring to obtain mixture C, which is filtered through a 200-mesh filter to obtain a formaldehyde scavenger;

[0046] 4) Add the formaldehyde scavenger obtained in step 3) to 5kg of water-based epoxy resin, disperse at a speed of 1200rpm, add 25g of polyoxypropylene glyceryl ...

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Abstract

The invention belongs to the technical field of air purification, and relates to paint having a formaldehyde removing function and a preparation method thereof. The paint specifically comprises, by weight, 1-3.4 parts of a formaldehyde removing agent, 3-13 parts of a base material, 0.05-0.1 part of an antifoaming agent, 0.05-0.1 part of a levelling agent and 0.01-0.05 part of a pH conditioning agent. The formaldehyde removing agent comprises, by weight, 1-13 parts of polyvinylpyrrolidone, 1-10 parts of water-soluble polymeric compounds, 4-42 parts of chiral amino alcohol, 1-7 parts of titaniumoxide, 1-7 parts of stannic oxide, 1-7 parts of silicon dioxide, 2-6 parts of magnesium oxide, 1-13 parts of active carbon, 1-9 parts of a soluble weak acid salt and 500-800 parts of a solvent. The formaldehyde can be removed quickly, stably and efficiently by the paint, raw materials are cheap and easily available, technology is simple and easy, and the paint and the preparation method are suitable for large-scale promotion and application.

Description

technical field [0001] The invention belongs to the technical field of air purification, and relates to a coating with formaldehyde purification function and a preparation method thereof. Background technique [0002] Formaldehyde is a protoplasmic toxic substance that can combine with amino groups in proteins to form formylated proteins. The impact of formaldehyde on human health includes abnormal sense of smell, respiratory tract irritation, abnormal lung function, central nervous system impact, abnormal immune function, and damage to genetic material in cells. The harm is serious and cannot be ignored. Therefore, my country's standard stipulates that the concentration of formaldehyde in indoor air should not be greater than 0.08mg / m 3 , and the concentration of formaldehyde in the air of public places shall not exceed 0.12mg / m 3 . [0003] At present, indoor formaldehyde pollution has become the most important indoor air pollution problem in my country, seriously endan...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D133/04C09D133/00C09D163/00C09D175/04C09D7/61C09D7/63C09D7/65C09D5/02C09D11/107C09D11/102C09D11/03
CPCC08K2201/014C08L2205/035C09D5/024C09D11/03C09D11/102C09D11/107C09D133/00C09D143/04C09D163/00C09D175/04C08L39/06C08K13/02C08K3/04C08K5/17C08K2003/222C08K2003/2241C08K2003/2231C08K3/36C08K5/18
Inventor 秦素洁
Owner 苏州麦茂思传感技术有限公司
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