Efficient neutral formaldehyde capture agent and preparation method

Abstract

The invention provides efficient neutral formaldehyde capture agent, which consists of deionized water, melamine, formalin solution, methyl salicylate, isoamyl alcohol, polysorbate, diethyl phosphate, sodium dodecyl benzene sulfonate and activated carbon. The invention further provides a method for preparing the efficient neutral formaldehyde capture agent. The efficient neutral formaldehyde capture agent can rapidly react with formaldehyde to form innocuous and unpoisonous colorless transparent liquid with excellent stability, and can not produce secondary pollution for environment at the same time. The efficient neutral formaldehyde capture agent is low in cost of raw materials, simple and easy in production process, and simple and convenient to use.

Description

technical field [0001] The invention belongs to the technical field of chemical industry, and in particular relates to a high-efficiency neutral formaldehyde scavenger and a preparation method thereof. Background technique [0002] Man-made panels such as plywood and particle board used in the decoration process, as well as materials such as wallpaper, wall covering and paint for decoration, will inevitably have residual formaldehyde. In recent years, with the extensive use of these decoration materials, the accompanying indoor formaldehyde pollution has always been a concern. Long-term exposure to low-dose formaldehyde can cause chronic respiratory diseases. When the concentration of formaldehyde is high, it can cause physical decline, decreased immunity, easy to catch colds, hair loss, sharp loss of appetite, weight loss, general weakness, headache, angina pectoris and insomnia, etc. It can cause nuclear gene mutation, DNA single-bond cross-linking, DNA-protein cross-link...

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Problems solved by technology

Application number is 92107276.7 Chinese patent document "AU formaldehyde scavenger production process", application number is 200410037055.6 Chinese patent document "a formaldehyde scavenger and its preparation method", application number is 200780002589.7 Chinese patent document "formaldehyde scavenger, Deodorizing composition, deodorizing solution and wooden material", the Chinese patent document "A formaldehyde scavenger and its preparation method" with application number 200810232101.6 all disclose a kind of amine compound based on urea, ethylenediamine, etc. Formaldehyde scavenger is the main component. Although this type of formaldehyde scavenger can remove formaldehyde significantly, excessive use of this type of compound will cause ammonia to be polluted again, making the smell of indoor ammonia strong and difficult to remove.

The Chinese patent document "A Novel Formaldehyde Scavenger and Its Preparation Method" with application number 03100568.3 discloses a formaldehyde scavenger whose main components are natural products such as tea polyphenols. Although this type of formaldehyde scavenger has no secondary pollution , but the extraction of this ingredient is difficult, the effect is limited, and it is not easy to apply on a large scale

The Chinese patent document "A Novel Efficient Formaldehyde Scavenger" with application number 200910050175.2 discloses a formaldehyde scavenger using basic amino acids and hydrazides as scavengers. Although this type of formaldehyde scavenger can remove temporary The unreleased formaldehyde achieves the purpose of long-term and permanent removal of formaldehyde, but the scavenger is alkaline and will cause corrosion to furniture. At the same time, the scavenger contains organic solvents, which will cause further pollution to the environment

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