Chitosan-based adhesives and uses thereof

摘要

There is provided an adhesive comprising chitosan an optionally a crosslinking agent. A method for preparing such an adhesive is also disclosed. A wood-panel made with such an adhesive is also provided. Moreover, a method for manufacturing a wood-based panel is provided. The method comprises preparing a mixture comprising wood, chitosan, optionally a crosslinking agent, and optionally an acid, forming a mat with the mixture, and pressing the mat under heat and pressure so as to obtain the wood-based panel.

主权项

1. An adhesive comprising hydrolyzed chitosan obtained by a chemical process consisting of an acid hydrolysis of chitosan or obtained by enzymatic hydrolysis of chitosan, an acid and a crosslinking agent that is phenylglyoxal, wherein said adhesive has a curing time of about 30 seconds to about 120 seconds at a temperature comprised between 60° C. and 120° C.