Hot-pressed veneer adhesive and preparation method thereof

Abstract

The invention discloses a hot-pressed veneer adhesive and a preparation method thereof. The hot-pressed veneer adhesive mainly comprises the following components: deionized water, polyvinyl alcohol, an emulsifier, an initiator, methacrylic acid, N-methylol acrylamide, vinyl acetate, a plasticizer, a buffering agent, cassava starch, borax, a dispersing agent, aqueous rosin, a defoaming agent and a corrosion inhibitor. When the hot-pressed veneer adhesive is prepared, the preparation method comprises the following steps of: firstly synthesizing a self-crosslinked polyvinyl acetate copolymerization modified emulsion, then adding 20-35% of raw cassava starch, a crosslinking agent, waterborne tackifying resin and other auxiliaries for mixing and finally preparing the hot-pressed veneer adhesive with excellent performances. Compared with a traditional urea resin veneer adhesive, the adhesive prepared by the invention has the advantages of convenience in use, low curing temperature, short curing time and no harm to an environment and a human body.

Description

technical field [0001] The invention relates to an adhesive, in particular to a hot-pressed veneer veneer adhesive and a preparation method thereof. Background technique [0002] With the continuous improvement of people's material and cultural living standards, the requirements for furniture are getting higher and higher. In the past, furniture made of MDF, blockboard and ordinary wood can no longer meet people's requirements in terms of aesthetics and practicability. For this reason, a veneer veneer technology has appeared on the market. This technology is to laminate beech, rosewood, red sandalwood, walnut, teak, aqua, etc. on the surface of MDF, blockboard and ordinary wood. The veneer of precious natural tree species such as willow and cherry wood, the veneer maintains the natural texture and color of the precious tree species, and through the lamination of natural veneer with MDF, blockboard and ordinary wood, the added value of the product is increased, while reducing...

AI Technical Summary

Problems solved by technology

This type of adhesive is inconvenient to use, the hot-pressing temperature is too high, the energy consumption is large, the hot-pressing time is long, and there is formaldehyde release during processing and later use, which pollutes the environment and seriously endangers the health of users. Therefore, the development A heat-pressed veneer veneer adhesive with one component, easy to use, low processing energy consumption, and no formaldehyde release has important economic and social benefits