| 聚丙烯共混改性的研究* |
| Study on Polypropylene Modified with Blending |
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| DOI： |
| 中文关键词: 聚丙烯 聚酰胺 乙丙橡胶 天然橡胶 共混物 接枝 |
| 英文关键词: polypropylene polyamide EPR NR blend graft |
| 基金项目:黑龙江省自然科学基金资助项目 |
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| 中文摘要: |
| 聚丙烯与聚酰胺、乙丙橡胶、天然橡胶进行二元共混或三元共混，探讨主要成分比对共混体系力学性能的影响，并对聚丙烯的增韧机理作了分析。制得的增韧聚丙烯的拉伸强度不低于24MPa、简支梁缺口冲击强度不低于9kJ·m-2、弯曲模量不低于550MPa、脆性温度比基料聚丙烯降低10℃以上。给出了3个主要成分含量影响力学性能的经验公式。 |
| 英文摘要: |
| The influence of blending ratio of polypropylene with polyamide，EPR or NR on the mechenical properties of their binary or ternary blend was investigated.The toughening mechanism of polypropylene was analysed.For the toughened polypropylene，the tensile strength was not less than 24 MPa，the simple beam impact strength not less than 9 kJ·m-2，bending modulus not less than 550 MPa，the brittle temperature was lower than that of basic polypropylene by more than 10 ℃.
An experimential formula was given to evaluate the influence of levels of main components on the mechenical properties of the blend. |
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