▎ 摘　　要

NOVELTY - Graphene-modified rubber material involves washing 72-135 pts. wt. waste rubber. The washed waste rubber is dried until its water content becomes 0.8%. The dried waste rubber is crushed and sieved through 200-300 mesh to obtain rubber powder. The obtained rubber powder is added with 1-1.6 pts. wt. surfactant at 72-78 degrees C at a rotational speed of 140-200 revolutions/minutes to obtain activated rubber powder. The 1.6-3.8 pts. wt. graphene is crushed over 200-300 mesh to obtain powder. USE - Graphene-modified rubber material for three dimensional printing (claimed). DETAILED DESCRIPTION - Graphene-modified rubber material involves washing 72-135 pts. wt. waste rubber. The washed waste rubber is dried until its water content becomes 0.8%. The dried waste rubber is crushed and sieved through 200-300 mesh to obtain rubber powder. The obtained rubber powder is added with 1-1.6 pts. wt. surfactant at 72-78 degrees C at a rotational speed of 140-200 revolutions/minutes to obtain activated rubber powder. The 1.6-3.8 pts. wt. graphene is crushed over 200-300 mesh to obtain powder. The obtained powder is treated ultrasonically under a power of 520-650 watt at 52-56 degrees C under a rotation speed of 200-300 revolutions/ minutes with stirring for 42-55 minutes to obtain graphene energy powder. The 32-50 pts. wt. polylactic acid, 30-42 pts. wt. dimeric sodium phosphate, 15-22 pts. wt. 2-hydroxy-4-octyloxybenzobutanone, 18-30 pts. wt. butenyl bis-stearamide, 6-12 pts. wt. of polybutylene terephthalate resin, 12-18 pts. wt. acrylic acid stearate, 9-15 pts. wt. tris (2,4-di-tert-butylphenyl) phosphite, 7-12 pts. wt. polyimide fiber, 6-9 pts. wt. carbon fiber, 0.5-0.9 pts. wt. regulator, 0.4-0.6 pts. wt. generating agent, 0.4-.7 pts. wt. crosslinking agent, 0.5-1 pts. wt. compatibilizer, 0.6-1.2 pts. wt. bridging agent, 0.2-0.4 pts. wt. catalyst, 0.4-0.8 pts. wt. of dispersant, 0.3-0.6 pts. wt. plasticizer and 0.4-0.6 pts. wt. tackifier are mixed in microwave at 142-146 degrees C under a power of 320-380 watt at a rotating speed of 200-400 revolutions/minutes for 2.5-3.6 hours to obtain first mixture. The obtained first mixture is mixed with 1-2.2 pts. wt. curing agent, 0.2-0.4 pts. wt. antioxidant, 0.3-0.5 pts. wt. stabilizer, 0.8-1.2 pts. wt. anti-aging agent, 1.4-1.8 pts. wt. flame retardant and 1.7-3.5 pts. wt. smoke suppressing agent at 73-82 degrees 9C with stirring at a rotational speed of 160-240 revolutions/minutes for 1.8-2.2 hours to obtain second mixture. The obtained second mixture is placed in screw extruder and subjected to extrusion molding at 190-200 degrees C at a rotational speed of 130-140 revolutions/ minutes to obtain graphene modified rubber material.