Abstract:

The technology for the manufacture of aqueous corn starch/synthetic rubber latex/isocyanate adhesive system API was systematically studied in the paper. Corn starch was firstly esterified at a certain Ph to form a emulsion that was condensed with synthetic rubber latex to yield the main component A of API. This component A was then mixed with isocyanate as a cross-linking agent to form the adhesive system API that was used as the adhesive of three-layer composite flooring board,blockboard,plywood,laminated stuff and other glued products. After production trail,performance of all products mentioned above reached the requirement of the national standard. There are no poison materials released from the products. This API is an applicable,easily handled adhesive and meet the need of present technology. Its cost is half the similar import adhesive. It has remarkable social and environmental benefits and economic profit.

Key words: Corn starch, Esterification, Aqueous vinyl polymer solution isocyanate Adhesive, Glued product