▎ 摘　　要

NOVELTY - Polypropylene composition comprises polypropylene and thermally conductive fillers, polypropylene includes homopolypropylene and ultra-high molecular weight polypropylene. The melt index of the ultra-high molecular weight polypropylene is 0.1-0.8 g/10 minutes and the melt index of the homopolymerized polypropylene is 0.9-6 g/10 minutes. USE - Used as a polypropylene composition. ADVANTAGE - The polypropylene composition significantly improves the mechanical properties, heat dissipation performance and electrical insulation of the MPP power pipe. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for: (1) polypropylene material, which is obtained by blending the polypropylene composition for 0.05-0.3 hours and granulating at 190-245degrees Celsius; and (2) MPP power pipe, which is obtained by extruding the polypropylene material at 175-225degrees Celsius.