▎ 摘　　要

NOVELTY - Composition (10) of bio adhesive (60) comprises: 1-40 wt.% protein (20); 5-25 wt.%hardening agent (30), where the hardening agent comprises isocyanate; 0 1-5 wt.% additive material (40), where the additive material comprises graphene oxide particles comprising particle size less than 50 μm and 5-20 wt.% filler material, where the filler material comprises urea and magnesium oxide. USE - The composition is useful in construction industry, and furniture industry. ADVANTAGE - The composition is cost-effective. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparing a bio adhesive comprising mixing in a mixer 1-40 wt.% protein, 5-25 wt.% hardening agent, 0. 1-5 wt.% additive material and 5-20 wt.% filler material to obtain a homogeneous mixture, grinding by a milling machine the homogenous mixture to obtain a powdery material, where grinding the homogenous mixture to obtain the powdery material comprises grinding the homogenous mixture to obtain the powdery material comprising particle size of 80 meshes and 600 meshes, and blending the powdery material with a deforming agent and a thickener agent to obtain the bio adhesive. DESCRIPTION OF DRAWING(S) - The figure shows a block representation of the composition of bio adhesive. 10Composition 20Protein 30Hardening agent 40Additive material 60Bio-adhesive