▎ 摘　　要

NOVELTY - Composition comprises composition (A) and composition (B), where composition (A) comprising 75-80 pts. wt. polypropylene (A), 20-30 pts. wt. polyethylene, 10-20 pts. wt. fillers, and 0-2 pts. wt. additives. The composition (B) includes 50-70 pts. wt. polypropylene (B), 25-35 pts. wt. polyethylene, 15-24 pts. wt. polyethylene copolymer, and 5-15 pts. wt. filler. USE - Composition for solar back sheet (claimed). ADVANTAGE - The composition is no small molecule additive, which avoids the influence of the additive to the bonding strength of the back plate and EVA, and the interaction between the specific filler makes the solar back plate containing composition have good UV shielding and barrier properties.