Artificial board formaldehyde adsorbing and fixing agent and preparation method thereof

A formaldehyde adsorption and wood-based panel technology, applied in separation methods, chemical instruments and methods, and other chemical processes, can solve problems such as poor adsorption capacity, undurable fixation, and harm to human health, and achieve large specific surface area and strong adsorption capacity , the effect of reducing the amount of release

Inactive Publication Date: 2015-03-04
GUANGDONG YIHUA TIMBER IND +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the adhesives used in the production of wood-based panels are mainly aldehyde-based adhesives such as urea-formaldehyde resin glue and phenolic resin glue. Free formaldehyde will be released during the production and use of wood-based panels, polluting the production and living environment, and seriously endangering human health.
At present, there are various kinds of wood-based panel formaldehyde adsorption and fixatives on the market, but the adsorption capacity is poor, the fixation is not durable, and the effect is not good.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] (1) Evenly spray 2 parts of silane coupling agent on the surface of 90 parts of 200-mesh diatomite, and then evenly mix 8 parts of urea with diatomite sprayed with silane coupling agent to obtain formaldehyde adsorption and fixation of wood-based panels Component A of the agent.

[0025] (2) 55 parts of solid ammonium sulfate was added to 40 parts of phosphate buffered saline, fully stirred for 30 minutes, and then 5 parts of liquid paraffin was added to the mixed solution and fully stirred to obtain component B of formaldehyde adsorption fixative for wood-based panels.

[0026] (3) Component A and Component B are stored separately and cannot be mixed; Component A is directly added to the adhesive during the production process of wood-based panels, accounting for 4% of the weight of the adhesive, and Component B is directly sprayed onto the adhesive. On the surface of wood-based panels, the spraying amount is 50g / m2 2 .

Embodiment 2

[0028] (1) Evenly spray 4 parts of silane coupling agent on the surface of 93 parts of 200-mesh diatomite, and then evenly mix 3 parts of urea with diatomite sprayed with silane coupling agent to obtain formaldehyde adsorption and fixation of wood-based panels Component A of the agent.

[0029] (2) 53 parts of solid ammonium sulfate was added to 43 parts of phosphate buffered saline, fully stirred for 30 minutes, and then 4 parts of liquid paraffin were added to the mixed solution and fully stirred to obtain component B of formaldehyde adsorption fixative for wood-based panels.

[0030] (3) Component A and Component B are stored separately and cannot be mixed; Component A is directly added to the adhesive during the production process of wood-based panels, accounting for 5% of the weight of the adhesive, and Component B is directly sprayed onto the adhesive. On the surface of wood-based panels, the spraying amount is 40g / m2 2 .

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PUM

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Abstract

The invention discloses an artificial board formaldehyde adsorbing and fixing agent, which comprises a component A and a component B, wherein the component A comprises 90-95 parts of diatomite with 200 meshes, 2-4 parts of a silane coupling agent and 3-8 parts of urea; the component B comprises 40-60 parts of phosphate buffered saline, 35-55 parts of solid ammonium sulfate and 2-5 parts of liquid paraffin; the component A and the component B are respectively and independently stored and cannot be mixed; the component A is directly added to an adhesive during artificial board production and takes 4-5% of the weight of the adhesive; the component B is directly sprayed on the surface of an artificial board, and the spraying amount is 40-50 g / m<2>. The invention further provides a preparation method of the artificial board formaldehyde adsorbing and fixing agent. The artificial board formaldehyde adsorbing and fixing agent can highly effectively adsorb and fix artificial board formaldehyde, and effectively reduces the free formaldehyde emission, so that the environment protection level of the board is up to E0.

Description

technical field [0001] The invention relates to the field of wood-based panels, in particular to an efficient formaldehyde adsorption and fixative for wood-based panels and a preparation method thereof. Background technique [0002] Wood-based panels are made of wood, bamboo and other plants, added with adhesives and prepared through a certain molding process. They can be widely used in furniture manufacturing and interior decoration and other fields. At present, the adhesives used in the production of wood-based panels are mainly aldehyde adhesives such as urea-formaldehyde resin glue and phenolic resin glue. Free formaldehyde will be released during the production and use of wood-based panels, polluting the production and living environment, and seriously endangering human health. At present, there are various kinds of wood-based panel formaldehyde adsorption and fixatives on the market, but the adsorption capacity is poor, the fixation is not durable, and the effect is no...

Claims

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Application Information

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IPC IPC(8): B01J20/22B01J20/30B01D53/04
CPCB01D53/04B01D2253/106B01D2253/20B01J20/14B01J20/22B01J2220/46B01J2220/4806B01J2220/4812
Inventor黄琼涛李新功刘壮青吴义强杜安磊
OwnerGUANGDONG YIHUA TIMBER IND