Formaldehyde scavenging agent and formaldehyde scavenging method thereof

Abstract

The invention discloses a formaldehyde scavenging agent which comprises the following components in percentage by mass: 7%-15% of pulullan, 6%-10% of semen cassiae gum, 3%-6% of sodium carboxymethyl cellulose, 2%-5% of glucolactone, 2%-5% of hydrophilic caprylic / capric glyceride, 4%-8% of 2-imidazolidinone and 57%-74% of deionized water, the glucolactone is a coagulant, the hydrophilic caprylic / capric glycerol is an emulsifier, and the 2-imidazolidone is a formaldehyde catching agent. The coating is stable in film forming, has better barrier property, flexibility and sealing property, is easy to use, deeply blocks a formaldehyde release path after being sprayed on the surface of an object, achieves the effects of blocking and closing the formaldehyde release path and synchronously adsorbing and decomposing formaldehyde, achieves the effect of continuously treating formaldehyde, has the formaldehyde content in air reaching the national standard, is safe and reliable, and has a good application prospect. Secondary pollution is avoided, objects are not damaged, and the using effect is good.

Description

technical field [0001] The invention relates to the technical field of formaldehyde removal, in particular to a formaldehyde scavenger and a formaldehyde removal method thereof. Background technique [0002] Formaldehyde is a highly toxic substance. Formaldehyde has irritating effects on eyes, mucous membranes and respiratory tract, can cause a variety of acute diseases, and is considered to be a potential carcinogen. Many research reports show that 70% of infant leukemia is related to excessive formaldehyde in the environment. As the most basic chemical raw material, formaldehyde is widely used in many fields such as chemical industry, medicine, pesticide, coating, 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. [0003] At present, the commonly used methods to eliminate formaldehyde mainly include: ventilation replacement, placing green plants and using activat...

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Problems solved by technology

[0003] At present, the commonly used methods to eliminate formaldehyde mainly include: ventilation replacement, placing green plants and using activated carbon, but the adsorption of formaldehyde by activated carbon and green plants is very limited, activated carbon will soon reach saturation, and the efficiency of activated carbon and green plants to remove formaldehyde is low

In addition, the formaldehyde pollution removal catalyst and nano-scale titanium dioxide sol are mainly composed of titanium dioxide. Since titanium dioxide is an ultraviolet photocatalyst, the formaldehyde removal effect is extremely limited under natural light or no light conditions, which has application limitations; it is proposed to react with ultraviolet light through titanium dioxide The post-film formation method seals the surface of the pollutants to prevent the release of formaldehyde. In view of the above reasons, the film formation cannot be satisfied, resulting in a rebound soon after treatment, and the effect of eliminating formaldehyde is not good.

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