▎ 摘　　要

NOVELTY - High performance fiber reinforced polyurethane conductive pressure-sensitive adhesive comprises 70-80 pts. wt. polyurethane block copolymer, 4-8 pts. wt. chain extender, 1-7 pts. wt. graphene oxide modified carbon fiber, 1-5 pts. wt. modified nano cellulose crystal, 25-35 pts. wt. a tackifying resin, 1-3 pts. wt. antioxidant and 3-7 pts. wt. curing agent. In the polyurethane block copolymer, the ratio of the block to the soft segment/hard segment is 80/20. USE - Used as high performance fiber reinforced polyurethane conductive pressure-sensitive adhesive. ADVANTAGE - The pressure sensitive adhesive has excellent surface peel strength, stickiness, wettability and thermal stability, good cohesion, mechanical properties and good electrical conductivity. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing high-performance fiber-reinforced polyurethane conductive pressure-sensitive adhesive, comprising (i) taking 70-80 pts. wt. polyurethane block copolymer, 4-8 pts. wt. chain extender, 1-7 pts. wt. graphene oxide modified carbon fiber, 1-5 pts. wt. modified nano cellulose crystal, 25-35 pts. wt. a tackifying resin, 1-3 pts. wt. antioxidant and 3-7 pts. wt. curing agent and 200 pts. wt. dispersant acetone according to the ratio, dissolving the modified nano cellulose crystals, dissolving graphene oxide modified carbon fiber in 100 pts. wt. dispersant in turn, stirring and dispersing to obtain component A; (ii) adding 2,4-toluene diisocyanate and polyhexandiol adipate diol into the reaction kettle under the protection of inert gas flow, mixing well, heating continuolsy to 65-75 degrees C, reacting for 2-3 hours, cooling to below 60 degrees C, adding the chain extender, reacting continuously at 65-70 degrees C for 2-4 hours, adding antioxidant and the remaining dispersant and the stirring continuously for 1-2 hours to obtain component B; and (iii) mixing component A and component B, heating up to 50-55 degrees C, stirring and dispersing for 0.5-1 hour, adding tackifying resin and curing agent, stirring continuously for 0.5-1 h, using a wire rod coater with a wire diameter of 10 mu m to uniformly coat the reaction solution on a release polyethylene film with a thickness of 60 mu m, curing at 120-125 degrees C for 1 min, and at 60-65 degrees C for 48 hours and volatilizing the dispersant.