教授
博士生导师
硕士生导师
教师拼音名称：shixinyan
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所在单位：橡塑材料与工程省部共建教育部重点实验室
职务：橡塑材料与工程省部共建教育部重点实验室常务副主任
学历：博士研究生
办公地点：青岛市舞阳路51-1号青岛科技大学橡塑楼406房间
性别：女
联系方式：0532-84022468
学位：博士
职称：教授
毕业院校：青岛科技大学
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关键字：Phase structure;Blending - Impact strength - Non Newtonian flow - Phase separation
摘要：Among many characterization methods for the compatibility of blends, the rheological ones have attracted more and more attention due to its sensitive response to the changes of structure of blends. In this work, PVC and PLA blends were prepared by melt mixing in torque rheometer. Static and dynamic rheological responses were used to analyze the compatibility of PLA/PVC blends, and a variety of analytical methods were also used, such as SEM and DSC, to assist revealing the phase morphology of the blends. The results showed that PVC/PLA = 50/50 formed a co-continuous phase structure, the other ratio blends formed a "sea-island" structure. The blend with co-continuous structure exhibited the lowest viscosity, the highest non-Newtonian index and the lowest entrance pressure drop, and the phase separation was more difficult than those with "sea-island" structures. It was concluded that the blend with co-continuous phase structure showed the strongest rheological responses. PVC/PLA = 50/50 also showed the highest impact strength among the blends.<br/> © 2019
卷号：176
期号：0
是否译文：否
