Additive of urea-formaldehyde resin adhesive for artificial board and preparation method of adhesive

Abstract

An additive of urea-formaldehyde resin adhesive for wood-based panels and a preparation method of the adhesive, the additive contains sepiolite powder, carboxymethyl sweet potato residue, cassava residue, corncob residue and oat waste, and the parts by weight of each raw material component are: carboxymethyl Methyl sweet potato dregs 100, cassava dregs 20-40, sepiolite powder 50-70, oat waste 5-20, mix the raw materials uniformly according to the above ratio, and prepare the urea-formaldehyde resin additive. The above additives and urea-formaldehyde resin are uniformly mixed according to the ratio of 20-30:100 in parts by weight to obtain the urea-formaldehyde resin adhesive of the present invention. The preparation method of the present invention is simple, the additive and the urea-formaldehyde resin adhesive have good mixing properties, can endow the urea-formaldehyde resin with better pre-pressing properties, and ensure the production efficiency of plywood and blockboard; the additive can react with the formaldehyde produced in the production of wood-based panels, reducing the Formaldehyde emission from wood-based panels.

Description

technical field [0001] The invention relates to an additive for an adhesive and an adhesive containing the additive, in particular to an additive for a urea-formaldehyde resin adhesive for a wood-based panel and a preparation method for the urea-formaldehyde resin adhesive. Background technique [0002] In recent years, my country's wood-based panel production has been ranking first in the world. In 2012, my country's wood-based panel output was 286 million m3, a year-on-year increase of 19.7%. Among them: Particleboard 12.89 million m 3 , a year-on-year increase of 7.2%; fiberboard 55.54 million m 3 , a year-on-year increase of 13.1%; plywood 142 million m 3 , an increase of 18.3% year-on-year; 286 million m of decorative panels 2 , an increase of 4% year-on-year. The output of wooden furniture is 239 million pieces, and the output of composite wood flooring is 425 million m 2 , 92.27 million m of solid wood flooring 2 . The total output of wood-based panels, plywoo...

AI Technical Summary

Problems solved by technology

The wood-based panels manufactured by using this additive have the advantages of smoothness, no cracking, no collapse, no mildew, etc., but the prepared wood-based panels have a large amount of formaldehyde release and serious environmental pollution; in addition, the patent does not mention pre-compression, However, considering the properties of talcum powder and wood powder, it is difficult to ensure the pre-compression of urea-formaldehyde resin adhesives by using this patented product as an additive.

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