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研究了添加低密度聚乙烯嵌段-聚丙烯酸酯共聚物(PE-双嵌段)对含有乙烯-丙烯-二烯烃三元共聚物(EPDM)和滑石粉的聚丙烯(PP)三元复合材料冲击强度的影响。滑石粉表面用γ-环氧丙氧基三甲基硅烷(GPMS)进行处理,以增强滑石粉表面与所添加共聚物羧基官能团之间的相互作用。复合材料用双螺杆挤出机制备,当PE-双嵌段的含量达到3wt%时,PP/EPDM(5wt%)/滑石(30wt%)粉复合材料的冲击强度显著增加,大约可提高40%。
The effects of adding low density polyethylene block-polyacrylate copolymer (PE-diblock) on polypropylene (PP) ternary composites containing ethylene-propylene-diene terpolymer (EPDM) and talc Impact strength. The talc surface is treated with gamma-glycidoxytrimethylsilane (GPMS) to enhance the interaction between the talc surface and the carboxyl functional groups of the added copolymer. The composites were prepared using a twin-screw extruder. The impact strength of the PP / EPDM (5wt%) / talc (30wt%) powder composites increased significantly when the content of PE-diblock reached 3wt%, which increased about 40% .