The result indicated that the anhydrite could toughen and reinforce PP. The anhydrite modified by aluminium coupling agent was more effecive than the unmodified anhydrite.
结果表明：硬石膏能够增韧增强PP，经铝酸酯偶联剂改性的硬石膏的增韧增强效果比不改性更加明显；
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