▎ 摘　　要

NOVELTY - Automotive plastic sound insulation board comprises quartz sand, aerogel, nanocalcium carbonate, nanosilver, graphene, polyvinyl chloride, polyurethane, acrylic cotton, silicone oil, fatty acid amide, oleamide, erucamide, sodium polyacrylate, hydroxypropylmethylcellulose, methyl methacrylate, tribasic lead sulfate, aluminum stearate, ceramic beads, vermiculite powder, and four needle-shaped zinc oxide whiskers. USE - Automotive plastic sound insulation board. ADVANTAGE - The board has high structural density, excellent sound insulating effect, good water absorption, long service life, and bacteriostatic function. DETAILED DESCRIPTION - Automotive plastic sound insulation board comprises 30-35 pts. wt. quartz sand, 16-20 pts. wt. aerogel, 22-28 pts. wt. nanocalcium carbonate, 10-15 pts. wt. nanosilver, 36-30 pts. wt. graphene, 40-46 pts. wt. polyvinyl chloride, 20-25 pts. wt. polyurethane, 10-15 pts. wt. acrylic cotton, 7-9 pts. wt. silicone oil, 17-21 pts. wt. fatty acid amide, 5-10 pts. wt. oleamide, 5-12 pts. wt. erucamide, 14-20 pts. wt. sodium polyacrylate, 25-26 pts. wt. hydroxypropylmethylcellulose, 7-13 pts. wt. methyl methacrylate, 4-8 pts. wt. tribasic lead sulfate, 2-8 pts. wt. aluminum stearate, 11-15 pts. wt. ceramic beads, 14-18 pts. wt. vermiculite powder, and 7-8 pts. wt. four needle-shaped zinc oxide whiskers. An INDEPENDENT CLAIM is included for preparation of automotive plastic sound insulation board comprising mixing quartz sand, aerogel, nano-calcium carbonate, nanosilver, graphene, polyvinyl alcohol, polyurethane, acrylic cotton, silicone oil, fatty acid amide, oleamide, erucamide and sodium polyacrylate at 3000-3500 revolutions/minute (rpm) speed for 25-30 minutes to obtain mixture (i); mixing hydroxypropylmethylcellulose, methyl methacrylate, tribasic lead sulfate, aluminum stearate, ceramic beads, vermiculite powder and four-needle-shaped zinc oxide whiskers, and heating to 125-150 degrees C with stirring at 1200-1600 rpm for 6-17 minutes to obtain mixture (ii); and pouring mixture (i) into mixture (ii), stirring mixture at room temperature with 500-800 rpm speed for 12-14 minutes, heating to 250-350 degrees C in mold, hot-pressing at 5-15 MPa, and cooling to obtain product.