| EPDM/聚烯烃共混型热塑性弹性体的研究 |
| Study on Thermoplastic EPDM/Polyolefin Elastomers |
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| DOI： |
| 中文关键词: 热塑性弹性体 EPDM 聚烯烃 共混物 |
| 英文关键词: thermoplastic elastomer EPDM polyolefin blend |
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| 中文摘要: |
| 制备EPDM/聚烯烃简单共混型热塑性弹性体。研究了聚合物种类、橡塑比、二元和三元共混对共混物力学性能的影响。结果表明，部分结晶性EPDM共混物的力学性能比无定形EPDM共混物好，部分结晶性EPDM与LDPE（低密度聚乙烯）共混物的拉伸强度大于两者的加和值，而其它二元共混物的拉伸强度均低于两共混单元的加和值；用LDPE部分替代PP，或用氯磺化聚乙烯（CSM）部分替代结晶性EPDM进行三元共混，能改善部分结晶性EPDM/PP共混物的某些性能。 |
| 英文摘要: |
| Thermoplastic EPDM/polyolefin elastomers (TPO) were prepared by using simple mechanical blending technique.The influences of polymer type，rubber/plastics ratio，binary blending or ternary blending on the physical properties of blends were investigated.The results showed that the physical properties of semi-crystalline EPDM TPO were superior to those of amorphous EPDM TPO；the tensile strength of semi-crystalline EPDM/LDPE blend was higher than their additive value，while the tensile strengthes of other binary blends were lower than their respective additive values；semi-crystalline EPDM/PP blend could be improved in certain properties when PP was partly replaced with LDPE，or semi-crystalline EPDM was partly replaced with CSM to form a ternary blend. |
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