A kind of wood-based panel formaldehyde adsorption fixative and preparation method thereof

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

Inactive Publication Date: 2016-08-24
GUANGDONG YIHUA TIMBER IND +1
View PDF6 Cites 0 Cited by
  • 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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

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

[0025] (2) Add 55 parts of solid ammonium sulfate to 40 parts of phosphate buffered saline, stir thoroughly for 30 minutes, then add 5 parts of liquid paraffin to the mixed solution, and stir thoroughly to prepare 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 of wood-based panels, accounting for 4% of the weight of the adhesive, and component B is directly sprayed on On the surface of wood-based panels, the spraying rate is 50g / m2 2 .

Embodiment 2

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

[0029] (2) Add 53 parts of solid ammonium sulfate to 43 parts of phosphate buffered saline, stir thoroughly for 30 minutes, then add 4 parts of liquid paraffin to the mixed solution, and stir thoroughly to prepare 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 of wood-based panels, accounting for 5% of the weight of the adhesive, and component B is directly sprayed on On the surface of wood-based panels, the spraying rate is 40g / m2 2 .

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a formaldehyde adsorption fixative for wood-based panels, which comprises component A and component B. According to parts by weight, component A comprises: 90-95 parts of 200-mesh diatomite, 2-4 parts of silane coupling agent, 3-8 parts of urea; component B includes: 40-60 parts of phosphate buffered saline, 35-55 parts of solid ammonium sulfate, and 2-5 parts of liquid paraffin. Component A and component B are stored separately and cannot be mixed. Component A is directly added to the adhesive during the production of wood-based panels, accounting for 4-5% of the weight of the adhesive. Component B is directly sprayed on the surface of the wood-based panel, and the spraying amount is 40-50g / m2. The invention also provides a preparation method of the above-mentioned formaldehyde adsorption and fixing agent for wood-based panels. The formaldehyde adsorption and fixing agent for wood-based panels of the invention can efficiently absorb and fix the formaldehyde of wood-based panels, effectively reduce the release of free formaldehyde, and make the environmental protection level of the panels reach 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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & AuthorityPatents(China)
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