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A kind of furniture formaldehyde scavenger and its preparation method that deeply penetrates the surface layer and continuously catches

A formaldehyde scavenger and deep penetration technology are applied in the field of preparation of environment-friendly and high-efficiency formaldehyde scavengers, which can solve the problems of formaldehyde scavengers being mixed, lacking a long-term reaction mechanism, and unstable reaction products, and achieving broad market prospects and promotion value. , product stability, high removal efficiency

Active Publication Date: 2021-11-19
BELLFLOWERHANGZHOUENVIRONMENTAL PROTECTION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the products used to control formaldehyde in furniture panels are mainly formaldehyde scavengers or traps, but the formaldehyde scavengers on the market are mixed, and there are three major problems at present: 1. The reaction is replaced by sealing, which only temporarily delays the release of formaldehyde rather than permanent removal. Formaldehyde; 2. The reaction product is unstable, and it is easy to reverse the reaction to regenerate formaldehyde; 3. Insufficient reaction volume or lack of long-term reaction mechanism, resulting in incomplete formaldehyde reaction

Method used

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  • A kind of furniture formaldehyde scavenger and its preparation method that deeply penetrates the surface layer and continuously catches
  • A kind of furniture formaldehyde scavenger and its preparation method that deeply penetrates the surface layer and continuously catches

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Weigh 1g of amino-terminated hyperbranched polymer and 5g of carboxymethylated chitosan and dissolve them in 49g and 44.7g of deionized water respectively, then mix the two solutions and then add 0.1g of penetrant and 0.1g of citric acid and 0.1 g coalescence aid. Apply 100g of the above-mentioned formaldehyde scavenger to the surfaces and sides of 10 pieces of E2 grade blockboards with a length of 15cm and a width of 5cm. The natural release of formaldehyde gas was carried out in the humid box, and samples were taken with an atmospheric sampler after 1 day, 7 days, 30 days, 90 days, 180 days and 360 days, and then the sampled gas was analyzed by phenol reagent-spectrophotometry , and the results were compared with 10 blockboards of the same specifications that were not coated with this product. Such as figure 1 Shown: In the 360-day follow-up test, the formaldehyde removal rate of this product has been stable above 93.2%, the maximum removal rate has reached 97.7%, a...

Embodiment 2

[0029] Weigh 3g of amino-terminated hyperbranched polymer and 8g of carboxymethylated chitosan and dissolve them in 46 and 41g of deionized water respectively, then mix the two solutions and then add 1g of penetrant, 0.5g of citric acid and 0.5g of g film-forming aids. Apply 100g of the above-mentioned formaldehyde scavenger to the surfaces and sides of 10 pieces of E2 grade blockboards with a length of 15cm and a width of 5cm. The natural release of formaldehyde gas was carried out in the humid box, and samples were taken with an atmospheric sampler after 1 day, 7 days, 30 days, 90 days, 180 days and 360 days, and then the sampled gas was analyzed by phenol reagent-spectrophotometry , and the results were compared with 10 blockboards of the same specifications that were not coated with this product. The results show that: in the 360-day follow-up test, the formaldehyde removal rate of this product has been stable at more than 93.2%, and the maximum removal rate has reached 9...

Embodiment 3

[0030] Weigh 5g of amino-terminated hyperbranched polymer and 10g of carboxymethylated chitosan and dissolve them in 44g and 38g of deionized water respectively, then mix the two solutions and then add 1g of penetrant, 1g of citric acid and 1g of synthetic Membrane aids. Apply 100g of the above-mentioned formaldehyde scavenger to the surfaces and sides of 10 pieces of E2 grade blockboards with a length of 15cm and a width of 5cm. The natural release of formaldehyde gas was carried out in the humid box, and samples were taken with an atmospheric sampler after 1 day, 7 days, 30 days, 90 days, 180 days and 360 days, and then the sampled gas was analyzed by phenol reagent-spectrophotometry , and the results were compared with 10 blockboards of the same specifications that were not coated with this product. Such as figure 2 Shown: In the 360-day follow-up test, the formaldehyde removal rate of this product has been stable at more than 93.5%, and the maximum removal rate has reac...

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Abstract

The invention discloses a furniture formaldehyde scavenger that penetrates deep into the surface layer and continuously captures it and its preparation method. The amino-terminated hyperbranched polymer, the main reactant of the invention, continuously removes formaldehyde in the furniture board under the action of the fast penetrating agent. Formaldehyde has high reaction efficiency and high removal efficiency. Each component of the invention is a safe and non-toxic raw material, and the reacted product is stable and non-toxic, will not cause secondary pollution during use, will not cause harm to users, and is safe and environmentally friendly. The formaldehyde scavenger adopted in the invention has a simple preparation method, a simple and convenient treatment and operation method for furniture, and has broad market prospects and popularization value.

Description

technical field [0001] The invention relates to the field of environment-friendly products, in particular to a preparation method and application of an environment-friendly high-efficiency formaldehyde scavenger. Background technique [0002] People's new homes, offices and other places must carry out interior decoration and purchase furniture. Because decoration and furniture manufacturing need to use a large number of man-made panels (such as plywood, large core board, MDF, particle board, laminate flooring and composite wood flooring, etc.), and The manufacture of wood-based panels requires a large amount of adhesives made of highly toxic formaldehyde as a raw material. Since the release period of formaldehyde in adhesives is very long, generally as long as 3-15 years, formaldehyde has become the main pollutant in indoor air. [0003] At present, the products used to control formaldehyde in furniture panels are mainly formaldehyde scavengers or traps, but the formaldehyde...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A62D3/33A62D101/28
CPCA62D3/33A62D2101/28
Inventor 于雄胜陈果
Owner BELLFLOWERHANGZHOUENVIRONMENTAL PROTECTION TECH