Study on Isocyanate Adhesive Using Esterified Corn Starch Emulsion as Main Agent

摘要

The paper systematically studies the manufacture of aqueous vinyl polymer solution-isocyanate adhesive (API) through utilizing esterified corn starch. Taking the certain acid and basicity as condition, corn starch was esterified to form emulsion that was condensed with synthesized no poison, no environmental pollution rubber emulsion to manufacture the main agent of API; Isocyanao compound which isocyanate group are taken as curing agent of API adhesive. Main a-gent and curing agent make up double component API adhesive which have no formaldehyde emission and improve water resistance. After production experiments in three layers composite flooring board, blockboard, plywood, laminated stuff and other bond products with this API adhesive proved, all performance indexes are passed and there are no poison materials emission from products. This API adhesive not only operated easily in production but also met the need of present technology. Besides, its cost is half of other import adhesives, so API adhesive we manufactured had obviously social environmental benefits and economic profits.