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A material and film with the function of adsorbing and absorbing formaldehyde and its preparation method

A formaldehyde-absorbing, functional technology, applied in the field of functional materials and film preparation, can solve problems such as corroded products, product surface pollution, product pollution, etc., and achieve long-lasting effectiveness

Inactive Publication Date: 2021-10-26
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For these residual formaldehyde, the current method is to directly spray some spray substances that can absorb and decompose formaldehyde on the product, which can effectively absorb or decompose the residual formaldehyde in the product, but because it is directly sprayed on the surface of the product, so It is easy to cause new pollution to the product, such as ammonia or amine formaldehyde removal agent, because of its strong alkalinity and corrosiveness, it is not ruled out that it will cause new pollution to the surface of the product, and even corrode the product

Method used

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  • A material and film with the function of adsorbing and absorbing formaldehyde and its preparation method
  • A material and film with the function of adsorbing and absorbing formaldehyde and its preparation method
  • A material and film with the function of adsorbing and absorbing formaldehyde and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] A material with the function of absorbing formaldehyde, in parts by weight (kg), comprising the following components:

[0041]

[0042] The preparation of the above-mentioned material with the function of absorbing formaldehyde comprises the following steps:

[0043] (1) After weighing the components according to the above parts by weight, add all the solid powder raw materials polyvinyl alcohol, zeolite molecular sieve, and caprolactam into the high-speed mixer, start the low-speed (300 rpm, the same below) pre-mixing for 5 minutes, Start high-speed stirring (1500 rpm, the same below) and stir and mix for 10 minutes;

[0044] (2) Then add glycerol, APG0810, hydroxyethyl urea and diethanolamine under high-speed stirring, continue to keep stirring at high speed for 30 minutes after adding, transfer to low-speed discharge, and set aside after the mixture is cooled;

[0045] (3) Extrude and granulate the mixed material after stirring and mixing through a twin-screw ext...

Embodiment 2

[0053] A material with the function of absorbing formaldehyde, in parts by weight (kg), comprising the following components:

[0054]

[0055] The preparation of the above-mentioned material with the function of absorbing formaldehyde comprises the following steps:

[0056] (1) After weighing the components according to the above weight parts, add all the solid powder raw materials polyvinyl alcohol and silicon dioxide into the high-speed mixer, start the low-speed (300 rpm, the same below) pre-mixing for 5 minutes, start High-speed stirring (1500 rpm, the same below) stirring and mixing for 10 minutes;

[0057] (2) Then add ethylene glycol, formamide, APG0814, hydroxyethyl urea and triethanolamine under high-speed stirring, continue to keep stirring at high speed for 30 minutes after adding, transfer to low-speed discharge, and set aside after the mixture is cooled;

[0058] (3) After the mixed material that has been stirred and mixed is extruded and made by a twin-screw ...

Embodiment 3

[0066] A material with the function of absorbing formaldehyde, in parts by weight (kg), comprising the following components:

[0067]

[0068] The preparation of the above-mentioned material with the function of absorbing formaldehyde comprises the following steps:

[0069] (1) After weighing the components according to the above parts by weight, add all the solid powder raw materials polyvinyl alcohol and silica alumina into the high-speed mixer, start the low speed (300 rpm, the same below) and pre-mix for 5 minutes , start high-speed stirring (1500 rpm, the same below) and stir and mix for 10 minutes;

[0070] (2) Then add ethylene glycol, acetamide, APG0816, hydroxyethyl urea and triethanolamine under high-speed stirring, continue to keep stirring at high speed for 30 minutes after the addition, transfer to low-speed discharge, and set aside after the mixture is cooled;

[0071] (3) After the material that has been stirred and mixed is extruded and made by a twin-screw...

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Abstract

The invention discloses a material and film with the function of adsorbing and absorbing formaldehyde and a preparation method thereof. The material with the function of absorbing formaldehyde comprises the following components in parts by weight: polyvinyl alcohol 100; plasticizer 15-40; alkyl glycoside surfactant 5-25; humectant 3-10; pH regulator 1~5; Adsorbent 3~8. After weighing each component according to the weight portion, stirring and mixing, extruding and granulating, the material having the function of adsorbing and absorbing formaldehyde is obtained. The obtained material having the function of absorbing and absorbing formaldehyde is blown into a film to obtain the film having the function of absorbing and absorbing formaldehyde. The film with the function of adsorbing and absorbing formaldehyde of the present invention can not only be used on different product packages, but also has lasting effectiveness in absorbing and absorbing the residual formaldehyde released in the package, and compared with the current direct spraying method, it will not pollute the substrate Packaged product.

Description

technical field [0001] The invention relates to the technical field of functional materials and film preparation, in particular to a material with the function of absorbing formaldehyde, a film and a preparation method thereof. Background technique [0002] The impact of formaldehyde on the environment and physical health has long been recognized by people. Formaldehyde is a protoplasmic poison that destroys biological cell proteins. It can cause damage to human skin, respiratory tract and internal organs. coma, renal failure, etc. The World Health Organization confirms that formaldehyde is a teratogen, a carcinogen, and a source of allergies, and long-term exposure will cause gene mutations. [0003] At present, the production and treatment of many civil products use a large amount of formaldehyde raw materials, such as wood products, which use a large amount of urea-formaldehyde resin and melamine-formaldehyde resin in the treatment of water and fire resistance; textiles ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J20/26B01J20/28B01J20/30B01D53/02
CPCB01D53/02B01D2257/70B01J20/08B01J20/103B01J20/12B01J20/16B01J20/22B01J20/261B01J20/28016B01J20/28033
Inventor 崔跃飞杨正高李玲玉谢斌谢东
Owner SOUTH CHINA UNIV OF TECH
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