Liquid biological adhesvie using soybean separated protein as base material and production process thereof

Abstract

The invention relate to liquid biologic adhesive used soybean protein isolate as base material. It uses urea and phosphorylating method to act on soybean protein isolate and do control capability chemical modification. It is mainly used in plywood production and cabinetmaking. It belongs to wood adhesive technique field. Its manufacturing includes the following steps: using soybean-protein-isolate, urea, polyphosphate sodium, and water as main component; dispersing urea into the water to form urea solution; adding soybean protein isolate into the solution; stirring at normal temperature, and adding polyphosphate sodium. The invention can change protein structure, and inducts phosphate radical in soybean protein isolate, increase adhesive strength and water resistance, no formaldehyde volatilizing, and will not pollute environment.

Description

technical field

[0001] The invention relates to a liquid bio-adhesive with soybean protein isolate as the base material, in particular to using urea and phosphorylation methods to simultaneously act on soybean protein isolate for controlled chemical modification; it is mainly used in plywood production and furniture manufacturing, and belongs to Technical field of wood adhesives. Background technique

[0002] Most of the wood adhesives used today are polymers made of petroleum derivatives, mainly phenolic resins, polyurethanes, acrylates, urea-formaldehyde resins, etc., which are polymerized from phenol, formaldehyde, isocyanate, etc. The solvent used It is an organic chemical substance and is extremely volatile. Although the adhesive strength and water resistance of these chemical adhesives are very good, in the process of production, transportation and use, these chemical products will volatilize toxic substances harmful to human body such as phenols and formaldehyde, and...

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