Wood adhesive

Abstract

The invention discloses a wood adhesive. The wood adhesive is prepared from the following raw materials in parts by weight: 2.5-4.2 parts of ammonium chloride, 0.8-1.6 parts of acrylamide, 1-1.8 parts of aluminate waterproofing agent, 3-8 parts of potato starch, 3-8 parts of diatomite, 0.5-1.6 parts of 4-nonyl phenol, 2.8-4.6 parts of polyamide polyamine epichlorohydrin resin and 1.2-3.6 parts of trioctyl citrate. Compared with the traditional product, the wood adhesive has the advantage that starch serving as a main component is rich in source, is low in cost and is environmentally friendly, thus ensuring low cost, cleanness and non pollution of the wood adhesive; adhesive strength and water resistance of the starch-based wood adhesive can be comparable with those of a three-formaldehyde resin adhesive, and the technical defects that environment is polluted and health is endangered due to toxic aldehyde compounds brought by the traditional three-formaldehyde resin adhesive used for adhesion in a wood product are also solved; the starch-based wood adhesive can be cured at room temperature and can also be widely applied to the field of splicing of wood-based panels and woods and the like.

Description

technical field [0001] The invention relates to a wood adhesive and belongs to the field of building materials. Background technique [0002] The three major types of glue used in the traditional wood processing industry: urea-formaldehyde resin, phenolic resin and melamine-formaldehyde resin, have the problem of releasing toxic aldehyde compounds during preparation, curing and use, which seriously pollute the environment and endanger human health. With the gradual enhancement of people's awareness of environmental protection and the improvement of national environmental protection laws and regulations, the development of non-toxic, non-polluting, green and environmentally friendly wood adhesives has become an inevitable trend in the development of the industry. Starch adhesive is a kind of cheap, non-toxic, natural environmental protection, green and renewable adhesive species. At present, it is mainly used in paper product bonding, label making, building mounting, decorati...

AI Technical Summary

Problems solved by technology

Starch adhesive is a kind of cheap, non-toxic, natural environmental protection, green and renewable adhesive species. At present, it is mainly used in paper product bonding, label making, building mounting, decoration, etc., but the existing products are due to There are problems such as low bonding strength and poor water resistance, and it is not enough for wood bonding