BE1029696B1 - PROCESS FOR MAKING AN ALDEHYDE-FREE, PHENOLIC-FREE WOOD-BASED BOARD BY ELIMINATION OF FORMALDEHYDE WITH PHOTOCATALYST/WAVE CATALYST - Google Patents

Abstract

The present disclosure discloses a method for manufacturing an aldehyde-free phenol-free wood-based board by eliminating formaldehyde with a photocatalyst/wave catalyst, comprising the steps of: mixing nano-titanium dioxide, nickel oxide powder, manganese oxide powder and cobalt oxide powder in a mass ratio of nano-titanium dioxide to nickel oxide to manganese oxide to cobalt oxide from 10: (0-10): (0-10): (0-10) to obtain a catalyst; uniformly mixing an adhesive with the catalyst in a mass ratio of adhesive to catalyst of 100: (0.1-30), processing a wood-based board according to a conventional adhesive application mode for wood-based boards and a conventional manufacturing process.

Description

PROCESS FOR MANUFACTURING AN ALDEHYDE-FREE PHENOL

FREE WOOD-BASED PLATE BY ELIMINATION OF FORM-

ALDEHYDE WITH PHOTOCATALYST/WAVE CATALYST

TECHNICAL ENVIRONMENT

[01] The present disclosure relates to the field of prevention and control of formaldehyde pollution in wood-based boards, and more particularly to a method of manufacturing an aldehyde-free phenol-free wood-based board by eliminating formaldehyde with a photocatalyst/wave catalyst.

TECHNICAL BACKGROUND

[02] A large amount of adhesive with high formaldehyde content is in the

Manufacturing process used for wood-based panels. Because formaldehyde can be harmful to human health, consumer concerns are focused on how the

Production of formaldehyde can be avoided with wood-based panels. Activated carbon is a formaldehyde elimination mode that is commonly used in residential settings and is inexpensive. With activated carbon, however, adsorption saturation can occur within a short time and dangerous substances can return to the

Air will be released if in the period after saturation no replacement with new ones

Charcoal bag done. In addition, the most important point in using the activated carbon is that a large amount of activated carbon is used, so that a minimum effect can be obtained only by adsorbing formaldehyde with activated carbon, and on the contrary, there is harm from misuse can arise.

[03] The wood-based board exhibits formaldehyde pollution in three main ways, the first being in free formaldehyde present unreacted in the wood-based board, the second being formaldehyde produced by hydrolysis of

Adhesive is produced using the wood-based board, and the third is formaldehyde, which is produced by wood aging using the wood-based board. The project group has found that the free formaldehyde that is unreacted in the wood-based board is the main cause of excess formaldehyde in wood-based boards, which accounts for 95% or more of the formaldehyde pollution. Formaldehyde and VOCs can occur when under the influence of

Ultraviolet rays and microwaves are in contact through nano-titanium dioxide,

Nickel oxide, manganese oxide and cobalt oxide are decomposed into carbon dioxide and water.

Considering the principle, the technology has been through testing and verification in the

practice invented.

SHORT VERSION

[04] The present invention aims to solve the problem of formaldehyde indoors. To achieve the aim, the present invention discloses a

Method of manufacturing an aldehyde-free, phenol-free, wood-based panel

Eliminating formaldehyde with a photocatalyst/wave catalyst that can eliminate formaldehyde fouling of a wood-based panel.

[05] According to one aspect of the present disclosure, a method for

Manufacturing an aldehyde-free, phenol-free wood-based panel by eliminating

Formaldehyde with a photocatalyst/wave catalyst comprising:

[06] Mixing nano-titanium dioxide, nickel oxide powder, manganese oxide powder and

Cobalt oxide powder in a mass ratio of nano-titanium dioxide to nickel oxide to - manganese oxide to cobalt oxide of 10: (0-10): (0-10): (0-10) to obtain a catalyst, the particle sizes of the nickel oxide powder, of the manganese oxide powder and the cobalt oxide powder are 60 to 2000 mesh;

[07] uniformly mixing an adhesive with the catalyst in a mass ratio of adhesive to catalyst of 100: (0.1-30) to obtain a modified

get glue; wherein the adhesive is a urea-formaldehyde resin adhesive or a phenolic resin adhesive;

[08] Processing a semi-finished product of the aldehyde-free phenol-free plate

Wood base with the modified adhesive as the raw material; and

[09] Conducting UV or microwave irradiation of the semi-finished product of the aldehyde-free phenol-free wood-based board for 0.5-30 minutes to remove formaldehyde-

eliminate hyd inside to obtain an aldehyde-free phenol-free wood-based panel BE20215918; where the microwave is 300MHz-3000GHz.

[10] The present disclosure has the advantages of being sophisticated, easy to process, inexpensive, and capable of free in a non-invasive manner

Eliminate formaldehyde in the wood-based panel. She is inherently creative and has far-reaching prospects in application and high market development potential.

DETAILED DESCRIPTION OF EMBODIMENTS

[11] The concept and technical effects of the present disclosure are described below clearly and fully in connection with the embodiments to contribute to the complete understanding of the related features and effects of the present disclosure. The described embodiments are obviously only part of the embodiments of the present one

Disclosure and are not all embodiments thereof. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present disclosure without creative efforts fall within the scope of the present disclosure.

[12] Example 1

[13] Nano titanium dioxide, nickel oxide, manganese oxide and cobalt oxide were mixed uniformly in a mass ratio of nano titanium dioxide to nickel oxide to manganese oxide to cobalt oxide of 10:1:1:1 to obtain a catalyst; an adhesive and the catalyst were uniformly mixed in a mass ratio of adhesive to

100:0.1 catalyst mixed; a wood-based panel was processed according to a conventional wood-based panel adhesive application mode and manufacturing process; and the processed wood-based board was exposed to microwave radiation for 0.5 minutes to eliminate formaldehyde inside to obtain an aldehyde-free phenol-free wood-based board. The microwaves were 300 MHz; the particle sizes of the nickel oxide powder, the manganese oxide powder and the cobalt oxide powder were 60 mesh; and the glue was a urinary

fabric-formaldehyde resin adhesive. PE60E1/5918

[14] Example 2

[15] Nano titanium dioxide, nickel oxide, manganese oxide and cobalt oxide were mixed uniformly in a mass ratio of nano titanium dioxide to nickel oxide to manganese oxide to cobalt oxide of 10:0:2:0 to obtain a catalyst; an adhesive and the catalyst were uniformly mixed in a mass ratio of adhesive to

Catalyst of 100:0.5 mixed; a wood-based panel was processed according to a conventional wood-based panel adhesive application mode and manufacturing process; and the processed wood-based board was exposed to UV rays for 5 minutes to eliminate formaldehyde inside to obtain an aldehyde-free phenol-free wood-based board. The particle sizes of

nickel oxide powder, manganese oxide powder and cobalt oxide powder were 120

mesh; and the adhesive was a phenolic resin adhesive.

[16] Example 3

[17] Nano titanium dioxide, nickel oxide, manganese oxide and cobalt oxide were mixed uniformly in a mass ratio of nano titanium dioxide to nickel oxide to manganese oxide to cobalt oxide of 10:10:10:10 to obtain a catalyst; an adhesive and the catalyst were uniformly mixed in a mass ratio of adhesive to catalyst of 100:1; a wood-based panel was processed according to a conventional wood-based panel adhesive application mode and manufacturing process; and the processed wood-based board was exposed to microwave radiation for 1 minute to eliminate formaldehyde inside to obtain an aldehyde-free phenol-free wood-based board. The microwaves were 500 MHz; the particle sizes of the nickel oxide powder, the manganese oxide powder and the cobalt oxide powder were 200 mesh; and the adhesive was a urea-formaldehyde resin adhesive.

[18] The embodiments of the present disclosure are described in detail above, however, the present disclosure is not limited to the foregoing embodiments. A person of ordinary skill can do several

Make changes within the scope of their knowledge without departing from the tenet of the present disclosure. If there is no conflict, can

. . ; ; BE2021/5918 also the embodiments of the present disclosure and the technical

Features are combined in the embodiments.

Claims (1)

PATENT CLAIMS GERO2 SIT Claims 1. A method of manufacturing an aldehyde-free, phenol-free wood-based board by eliminating formaldehyde with a photocatalyst/wave catalyst, comprising the steps of: mixing nano-titanium dioxide, nickel oxide powder, manganese oxide powder and cobalt oxide powder in a mass ratio of nano-titanium dioxide to nickel oxide manganese oxide to cobalt oxide of 10:(0-10):(0-10):(0-10) to obtain a catalyst, wherein the particle sizes of the nickel oxide powder, the manganese oxide powder and the cobalt oxide powder are 60 to 2000 mesh ; uniformly mixing an adhesive with the catalyst in a mass ratio of adhesive to catalyst of 100: (0.1-30) to obtain a modified adhesive; wherein the adhesive is a urea-formaldehyde resin adhesive or a phenolic resin adhesive; processing a semi-finished product of the aldehyde-free phenol-free wood-based board with the modified adhesive as a raw material; and conducting UV or microwave irradiation of the semi-finished product of the aldehyde-free phenol-free wood-based board for 0.5 to 30 minutes to eliminate formaldehyde inside to obtain an aldehyde-free phenol-free wood-based board; wherein the microwave is 300MHz to 3000GHz.