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Formaldehyde catching agent and preparation method thereof

A technology of formaldehyde scavenger and auxiliary agent, applied in the field of formaldehyde scavenger and its preparation, can solve the problems such as short effective time of formaldehyde remover, inability to remove formaldehyde well, limited effective ingredients, etc., achieves good market application prospects, easy to use Get, long-lasting results

Active Publication Date: 2015-05-27
BEIJING CENT FOR PHYSICAL & CHEM ANALYSIS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are some problems in the existing formaldehyde scavenger products on the market: for example, the inorganic ammonium formaldehyde scavenger has a short effective time, and it is easy to crystallize and precipitate after spraying to affect the appearance; the organic polyamine formaldehyde scavenger is easy to volatilize and cause secondary pollution. After that, white traces are produced, and some of them have considerable toxicity and cause certain harm to the human body; although some plant extracts and natural product formaldehyde eliminators have low toxicity and no secondary pollution problems, their active ingredients are limited and cannot be used. Formaldehyde is eliminated very well, but the overall efficiency is low; high-molecular formaldehyde scavenger has the characteristics of no volatility, high efficiency, and good film-forming properties. ZL200810232101.6 discloses a formaldehyde scavenger and its preparation method. Amino-based gelatin and amino-terminated polymers are used as the main components of formaldehyde scavenger, but the preparation process is cumbersome and the production cost is high

Method used

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  • Formaldehyde catching agent and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Embodiment 1 formaldehyde capture agent and preparation thereof

[0030] Add methyl acrylate monomer to the methanol solution of divinyltriamine (the content of divinyltriamine is 35%), the molar ratio of divinyltriamine to methyl acrylate is 1:1, and the reaction temperature is controlled at 0°C , control the reaction time to 8 hours, add 5% by weight of initiator A, gradually increase the temperature, the temperature is divided into four stages, respectively 60 ℃, 100 ℃, 120 ℃ and 140 ℃, and the initial stage (heating to 60 ℃, 100°C) to maintain the vacuum with a water pump, and use an oil pump after the third stage (heating to 120°C, 140°C). The total reaction time is 8 hours, add 100% deionized water by weight, stir well, add 5% of auxiliary agent B, 5% of auxiliary agent C (succinic acid disulfide), and mix and stir at 50°C to obtain Efficient polymer formaldehyde capture agent.

Embodiment 2

[0031] Embodiment 2 formaldehyde capture agent and preparation thereof

[0032] Add methyl acrylate monomer to the methanol solution of divinyltriamine (the content of divinyltriamine is 35%), the molar ratio of divinyltriamine to methyl acrylate is 1:1.2, and the reaction temperature is controlled at 20°C , control the reaction time to 16 hours, add 5% by weight of initiator A, and gradually increase the temperature. The temperature rise is divided into four stages, namely 60°C, 100°C, 120°C and 140°C. The initial stage (heating to 60°C, 100°C) to maintain the vacuum with a water pump, and use an oil pump after the third stage (heating to 120°C, 140°C). The total reaction time is 16 hours, add 200% by weight of deionized water, stir well, add 5% of auxiliary agent B, 5% of auxiliary agent C (adipic disulfide), and mix and stir at 50°C to obtain Efficient polymer formaldehyde capture agent.

Embodiment 3

[0033] Embodiment 3 formaldehyde capture agent and preparation thereof

[0034] Add methyl acrylate monomer to the methanol solution of divinyltriamine (the content of divinyltriamine is 35%), the molar ratio of divinyltriamine to methyl acrylate is 1:1.5, and the reaction temperature is controlled at 20°C , control the reaction time to 24 hours, add 5% by weight of initiator A, and gradually increase the temperature. The temperature rise is divided into four stages, namely 60°C, 100°C, 120°C and 140°C. The initial stage (heating to 60°C, 100°C) to maintain the vacuum with a water pump, and use an oil pump after the third stage (heating to 120°C, 140°C). The total reaction time is 24 hours, add 400% by weight of deionized water, stir well, add 5% of auxiliary agent B, 5% of auxiliary agent C (sebacic acid diacid) and mix and stir at 50°C to obtain Efficient polymer formaldehyde capture agent.

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Abstract

The invention provides a formaldehyde catching agent. An efficient macromolecular type formaldehyde catching agent is synthesized by performing addition polycondensation reaction on a methyl acrylate monomer and a polyamine compound to generate an amino-group-enriched hyperbranched polymer and adding corresponding auxiliaries. According to the catching agent, formaldehyde is caught by using an amino group of the hyperbranched polymer and film forming fixing is implemented by using a carbon framework of an acrylate type substance; modification is realized by the corresponding various auxiliaries, so that the physical performance and the formaldehyde elimination effect are improved. The formaldehyde catching agent has the characteristics of no toxicity, no volatility and no irritating odor, and secondary harm to a human body is avoided; the formaldehyde catching agent can be limitlessly dissolved in water, is mild in property, free from corrosion, easy to add and spray, high in film forming property and durable.

Description

technical field [0001] The invention relates to the field of polymer materials and the technical field of environmental protection products, in particular to a novel formaldehyde scavenger and a preparation method thereof. Background technique [0002] Formaldehyde is a highly toxic substance. Formaldehyde has an irritating effect on the eyes, mucous membranes, and respiratory tract. It can cause a variety of acute diseases and is considered a potential carcinogen. Several research reports have shown that 70% of infant leukemia is related to excessive formaldehyde in the environment. [0003] As the most basic chemical raw material, formaldehyde is widely used in many fields such as chemical industry, medicine, pesticide, paint, and even food processing. Especially in the field of building materials and decoration, the harm of formaldehyde has been paid more and more attention by people. [0004] At present, after the home decoration is completed, formaldehyde remover is wi...

Claims

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Application Information

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IPC IPC(8): B01D53/77B01D53/72
Inventor 刘清珺王欣欣亓学奎罗运军
Owner BEIJING CENT FOR PHYSICAL & CHEM ANALYSIS
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