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Structural and Rheological Properties of PP/EPR/PE Alloys
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摘要:Linear and non-linear rheological properties were examined for in-reactor alloy samples composed of isotactic polypropylene(i PP),ethylene-propylene rubber(EPR), and polyethylene(PE). The samples were prepared through two-or three-stage sequential polymerization,where i PP, as the majority, was synthesized in the first stage, and either EPR or PE, as the minority, was synthesized in the second or third stage.Above Tm of both PE and i PP, the linear viscoelasticity shows two relaxation processes, where the fast and slow processes are attributable to the relaxation of the i PP component and that of the EPR/PE domains, respectively. Both the damping behavior upon applying the step-strain measurements and the shear-thinning behavior under the shear-rate sweep measurements are strongly related to the different degrees of nonlinearity of the two relaxation processes.
卷号:v.41
期号:02
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张春雨

教授 博士生导师 硕士生导师

教师拼音名称:zhangchunyu

出生日期:1978-11-30

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入职时间:2019-11-28

所在单位:先进橡胶材料教育部重点实验室

学历:博士研究生

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性别:男

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学位:理学博士

毕业院校:吉林大学

所属院系:先进橡胶材料教育部重点实验室

学科:材料科学与工程其他专业
高分子化学与物理

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