Design of high impact thermal plastic polymer composites with balanced toughness and rigidity: Toughening with core-shell rubber modifier
Design of high impact thermal plastic polymer composites with balanced toughness and rigidity: Toughening with core-shell rubber modifier
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韧性和刚性平衡的高抗冲热塑性聚合物复合材料的设计：核壳橡胶改性剂增韧
DOI：
10.1016/j.polymer.2020.122237
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发表时间：
2019-04
期刊：
影响因子：
4.6
通讯作者：
Jiang Wei
中科院分区：
文献类型：
--
作者：
Li Fushi;Gao Yunbao;Zhang Yue;Jiang Wei
它不同于乙丙橡胶（EPR）、三元乙丙橡胶（EPDM）、聚烯烃弹性体（POE）等单相抗冲改性剂，由硬核和软壳构成的核-壳橡胶粒子是典型的两相抗冲改性剂。它们已被成功地和广泛地用于通过熔融共混或在反应器中合金化来增韧聚合物。然而，如何通过优化核壳相的结构和性能，获得具有较小刚性损失的高抗冲热塑性聚合物复合材料，是一个重要但尚未明确的问题。为了回答这一问题，本文将模型从单相改性剂发展到两相改性剂，并进行了定量计算，得出以下结论：（1）为了获得低刚性损失的高抗冲聚合物复合材料，核的模量应尽可能高，壳的模量应尽可能低;（2）与单相抗冲改性剂相比，核壳橡胶粒子增韧聚合物复合材料的刚性损失较小。高抗冲PP的最低模量损失可从单相改性剂的26.1%降至PE核的核壳改性剂的13.5%，再降至PP核的核壳改性剂的5.4%;（3）杂质，即橡胶壳含有均聚PP或PE，核含有EPR，导致反应器中高抗冲PP合金的刚度损失增加。
It is different from one phase impact modifier such as ethylene-propylene rubber (EPR), ethylene-propylenediene monomer copolymer (EPDM), polyolefin elastomer (POE) et al., that the core-shell rubber particles constructed by a hard core and a soft shell is a typical two phases impact modifier. They have been successfully and widely introduced to toughen polymers by melt blending or alloying in reactor. However, an important but unclear question is how to obtain the high impact thermal plastic polymer composites with less rigidity loss by optimizing the structure and the properties of the core and shell phases. To answer this question, we develop the model from one phase modifier to two phases modifier and make a quantitative calculation in this study and obtain the following results: (1) In order to obtain the high impact polymer composites with low rigidity loss, the modulus of the core should be as higher and the modulus of shell should be as lower as they can; (2) Comparing to one phase impact modifier, core-shell rubber particles toughened polymer composites can have less rigidity loss. The lowest modulus loss for the high impact PP can decrease from 26.1% for one phase modifier, to 13.5% for the core-shell modifier with PE core, and to 5.4% for the core-shell modifier with PP core; (3) The impurity, i.e. the rubber shell contains homo PP or PE and the core contains EPR, leads to the increase of the rigidity loss for the high impact PP alloys in reactor.
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影响因子：
3
作者：
Biao Zhang;Zhisheng Fu;Zhiqiang Fan;P. Phiriyawirut;Sumate Charoenchaidet
通讯作者：
Biao Zhang;Zhisheng Fu;Zhiqiang Fan;P. Phiriyawirut;Sumate Charoenchaidet
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影响因子：
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影响因子：
3
作者：
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影响因子：
9.1
作者：
Li, Zibiao;Muiruri, Joseph K.;He, Chaobin
通讯作者：
He, Chaobin
影响因子：
6
作者：
Zhisheng Fu;Zhiqiang Fan;Yu-Qing Zhang;Lin-Xian Feng
通讯作者：
Zhisheng Fu;Zhiqiang Fan;Yu-Qing Zhang;Lin-Xian Feng