| 动态硫化EPDM/PP共混物力学性能的研究 |
| Study on mechanical properties of dynamical ly vulcanized EPDM/PP blends |
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| DOI： |
| 中文关键词: EPDM PP 热塑性弹性体 动态硫化 |
| 英文关键词: EPDM PP thermoplastic elastomer dynamic vulcanization |
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| 中文摘要: |
| 考察了硫黄用量和聚合物共混比对动态硫化EPDM/PP热塑性弹性体性能的影响。结果表明 ,随着硫黄用量增大,EPDM/PP共混物的拉伸强度、100%定伸应力和扯断伸长率先增大后减小,硬度有所增大；随着PP用量的增大,EPDM/PP共混物的拉伸强度、100%定伸应力和硬度均有所增大,扯断伸长率也是先增大后减小。PP用量的变化对这些性能的影响更显著。 |
| 英文摘要: |
| The influence of the sulfur level and the rubber/plastics ratio on the mechanical properties of dynamically vulcanized EPDM/PP thermoplastic elastomers was investigated .The results showed that the tensile strength, the modulus at 100% elongation, and the elongation at break of EPDM/PP blends increased at first and then decreased as the sulfur level increased;the tensile strength, the modulus at 100% elongation and the hardness of EPDM/PP blends increased, and their elongation at break increased at first and then decreased as the PP proportion increased;and the PP proportion had more significant effect on the mechanical properties of the blends. |
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