▎ 摘　　要

NOVELTY - Attapulgite-modified polycarbonate sound insulation board comprises 120-130 pts. wt. polycarbonate, 10-15 pts. wt. graphene nanofiber, 6-8 pts. wt. fluff powder, 6-7 pts. wt. magnesia whiskers, 20-30 pts. wt. polycarbonate microporous spheres, 20-30 pts. wt. nano-level attapulgite, 6-9 pts. wt. dispersant, 5-7 pts. wt. curing agent and 30-40 pts. wt. attapulgite filler. USE - As attapulgite-modified polycarbonate sound insulation board. ADVANTAGE - The attapulgite-modified polycarbonate sound insulation board has improved toughness, abrasion resistance, chemical stability, impact strength and radiation resistance, strong impact resistance and radiation resistance, excellent noise reduction and sound insulation, high mechanical strength, corrosion resistance and aging resistance, and long service life. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing the attapulgite-modified polycarbonate sound insulation board involving (i) drying polycarbonate and graphene nanofiber at 110-120 degrees C for 2-3 hours, adding to a high-speed mixer with fluff powder, nano-level attapulgite, and magnesia whisker, heat-preserving at 50-60 degrees C for 60-80 minutes to obtain the modified mixture, (ii) boiling the polycarbonate mixed liquid, adding nano-level attapulgite, solidifying, repeatedly washing using anhydrous ethanol, drying to obtain microporous attapulgite composite polycarbonate spheres, placing the obtained composite polycarbonate spheres in a hollow attapulgite modified polycarbonate sound insulation board, where each of the attapulgite modified polycarbonate sound insulation boards has 200-300 minute voids on each side of the board, the diameter of the voids is 1-2 mm, and the size of each hollow attapulgite modified polycarbonate sound insulation board is 1 mx 1 mx 5 cm, compacting polycarbonate spheres and attapulgite filler, filling and sealing with the polycarbonate to obtain the product.