Establishment of the Rheological Model of Polyethylene/Alumina Considering the Influence of Particle Size and Filling Amount

被引：0
|
作者：
Zhang M. [1 ]
Xie L. [1 ]
Ma Y. [1 ]
Li G. [1 ]
Shan X. [1 ]
机构：
[1] Engineering Center of Efficient Green Process Equipment and Energy Conservation of Ministry of Education, East China University of Science and Technology, Shanghai
来源：
Gaofenzi Cailiao Kexue Yu Gongcheng/Polymeric Materials Science and Engineering | 2019年 / 35卷 / 09期
关键词：
Alumina; Dynamic rheological behavior; Filler network; Modified rheological model;
D O I：
10.16865/j.cnki.1000-7555.2019.0261
中图分类号：
学科分类号：
摘要：
The effect of the alumina particle size and filling amount on the rheological behavior of polyethylene/alumina was investigated and the rheological model of polyethylene/alumina considering the influence of particle size and filling amount was established. The polyethylene/alumina composites with different filler particle sizes and loadings were subjected to steady and dynamic rheological tests, and the formation of the filler network was analyzed through the storage modulus, and a modified viscosity model was established by nonlinear regression of the steady viscosity. The results show that for nano-alumina, the viscosity and modulus of the composite systems increase with the increase of the loading, and the zero-viscosity and relaxation time increase, the filler network starts to form near 10% filler loading, and a liquid-like to solid-state transition occurs; for micron-alumina, as the particle size increases, the viscosity and modulus of the composite systems increase, and the zero-viscosity and relaxation time increase. But when the filler amount is 12%, no filler network structure is formed. © 2019, Editorial Board of Polymer Materials Science & Engineering. All right reserved.
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页码：103 / 108
页数：5
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