Macromolecular environment-friendly formaldehyde removal spray and preparation method thereof

An environmentally friendly, macromolecular technology, applied in separation methods, chemical instruments and methods, and dispersed particle separation, etc., can solve problems such as pollution, human harm, and impact on people's health, and achieve simple production processes, easy access to raw materials, and removal of Excellent effect of aldehyde effect

Inactive Publication Date: 2019-11-29
常州良福朗清生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The effect of traditional chemical removal reagents is relatively good, but traditional chemical reagents will cause secondary pollution and affect people's health
[0004] Chinese patent CN105921008A discloses a photocatalyst formaldehyde-removing spray. The raw materials used in this spray are nano-silica, nano-silver, and nano-titanium dioxide, which are expensive and may cause other harm to the human body.
[0006] And Chinese patent CN109289429A discloses a kind of formaldehyde-removing odor-removing spray liquid, comprising the following raw materials in parts by weight: 1-chloro-2,2,6,6-tetramethylpiperidinol, 15-19 parts; N, N- Dichloro-4-methylbenzenesulfonamide, 10-14 parts; carboxymethyl cellulose, 5-10 parts; essential oil, 4-6 parts; dispersant, 6-8 parts; solvent, 40-50 parts; The components that effectively remove formaldehyde in the invention are 1-chloro-2,2,6,6-tetramethylpiperidinol, N,N-dichloro-4-methylbenzenesulfonamide, these small molecule chemical reagents may be harmful to the environment cause secondary harm and pollution to the human body

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Dehydrate PEG with a number average molecular weight Mn of 1000 at 100°C for 30 minutes, then cool to 50°C, take 53.8 grams and add it to a 500 ml three-necked flask, then add 28.2 grams of HDI, stir and heat up to 90°C for 2 hours. , add 9.0 grams of DMPA, 0.02 grams of DBTDL and 20 grams of acetone, stir and react at 70°C for 4 hours at a constant temperature, then add 10 grams of end-capping agent hydroxyethyl acrylate and 0.01 grams of polymerization inhibitor BHT, and react at 75°C for 2 hours to obtain a prepolymer with a double bond in the end group; then add 0.02 grams of initiator AIBN and 10 grams of acrylamide monomer to the double bond-terminated polymer prepolymer, and react at 60-80 ° C for 2 hours Cool down to 40°C, add neutralizing agent and stir for 1-5 minutes, then add 200 grams of water with a reference mass under high-speed shear stirring, and remove the solvent at 40-50°C and 0.01MPa vacuum after stirring for 20 minutes to obtain side Aqueous polym...

Embodiment 2

[0046] The number average molecular weight M n 1000 PEG was dehydrated at 100°C for 30 minutes and then cooled to 50°C. Take 43 grams and add it to a 500 ml three-neck flask, then add 28.2 grams of HDI, stir and heat up to 90°C for 2 hours, then add 9.0 grams of DMPA , 0.02 grams of DBTDL and 20 grams of acetone, stirred and reacted at 70°C for 4 hours at a constant temperature, then added 20 grams of end-capping agent hydroxyethyl acrylate and 0.01 grams of polymerization inhibitor BHT, and reacted at 75°C for 2 hours to obtain a terminal group containing Double bond prepolymer; then add 0.02 grams of initiator AIBN and 20 grams of acrylamide monomer to the double bond-terminated polymer prepolymer, react at 60-80°C for 2 hours and then cool down to 40°C. Add neutralizer and stir for 1-5 minutes, then add 200 grams of water with a reference mass under high-speed shear stirring, and remove the solvent at 40–50°C and 0.01MPa vacuum after stirring for 20 minutes to obtain a large ...

Embodiment 3

[0055] The number average molecular weight M n 1000 PPG was dehydrated at 100°C for 30 minutes and then cooled to 50°C. Take 43 grams and add it to a 500 ml three-neck flask, then add 28.2 grams of HDI, stir and heat up to 90°C for 2 hours, then add 9.0 grams of DMPA , 0.02 grams of DBTDL and 20 grams of acetone, stirred and reacted at 70°C for 4 hours at a constant temperature, then added 20 grams of end-capping agent hydroxyethyl acrylate and 0.01 grams of polymerization inhibitor BHT, and reacted at 75°C for 2 hours to obtain a terminal group containing Double bond prepolymer; then add 0.02 grams of initiator AIBN and 40 grams of acrylamide monomer into the double bond-terminated polymer prepolymer, react at 60-80°C for 2 hours and then cool down to 40°C. Add the neutralizing agent and stir for 1-5 minutes, then add 200 grams of water with a reference mass under high-speed shear stirring, and remove the solvent at 40-50°C and 0.01MPa vacuum after stirring for 20 minutes to ...

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PUM

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Abstract

The invention discloses a macromolecular environment-friendly formaldehyde removal spray and a preparation method thereof, and relates to the technical field of air purifying agents. The formaldehyderemoval spray is prepared from the following raw materials in percentage by mass: 10 to 50 percent of water-based polymer emulsion with the mass concentration of 30 to 40 percent, 0.1 to 2.0 percent of a dispersing agent, 0.1 to 1.0 percent of a thickening agent, 1.0 to 10 percent of a plant extracting solution with the mass concentration of 30 to 50 percent and the balance of deionized water, thepreparation method comprises the step of uniformly mixing the raw material components to obtain the formaldehyde-removing spray. The formaldehyde removal spray formed by combining the water-based polymer emulsion and the plant extracting solution as main components has the advantages of no secondary chemical pollution, safety, reliability and excellent formaldehyde removal effect.

Description

technical field [0001] The invention belongs to the technical field of air purifiers, in particular to a macromolecule environment-friendly formaldehyde-removing spray and a preparation method thereof. Background technique [0002] Formaldehyde is a colorless, water-soluble and highly volatile irritating poisonous gas. Indoor formaldehyde mainly comes from building materials, furniture, wood-based panels, adhesives, paints and synthetic textiles in home decoration. Residues in these materials Formaldehyde that has not yet participated in the reaction will gradually be released to the surrounding environment. Generally, the higher the temperature, the greater the release. Formaldehyde is very harmful to the human body. It can be absorbed through the respiratory tract, leading to an increase in tissue active oxygen, lipid peroxidation, and affecting the body's immune system, thereby causing damage to the body. On the other hand, formaldehyde has a stimulating effect on the sk...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/78B01D53/72
CPCB01D53/72B01D53/78B01D2257/708
Inventor 李怡霞胡衎刘洪亮薛烽李军配
Owner 常州良福朗清生物科技有限公司
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