Non-isothermal crystallization kinetics of UHMWPE composites filled by oligomer-modified CaCO3

被引：22
作者：
Wu, Zexiong [1 ]
Zhang, Zishou [1 ]
Mai, Kancheng [1 ]
机构：
[1] Sun Yat Sen Univ, Key Lab Polymer Composites & Funct Mat, Guangdong Prov Key Lab High Performance Polymer B, Mat Sci Inst,Sch Chem,Minist Educ, Guangzhou 510275, Peoples R China
来源：
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY | 2020年 / 139卷 / 02期
关键词：
Non-isothermal crystallization kinetics; Ultrahigh molecular weight polyethylene; Oligomer-modified calcium carbonate; Crystallization; MOLECULAR-WEIGHT POLYETHYLENE; ABRASIVE WEAR-RESISTANCE; SURFACE MODIFICATION; CARBON-FIBERS; BEHAVIOR; PERFORMANCE; PARTICLES; FRICTION; NANO;
D O I：
10.1007/s10973-019-08428-w
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
The processability of ultrahigh molecular weight polyethylene (UHMWPE) improved by oligomer-modified calcium carbonate (CaCO3) was observed in our previous work. In order to understand the effect of oligomer-modified CaCO3 on the crystallization of UHMWPE, the non-isothermal crystallization behavior and crystallization kinetics of UHMWPE composites filled by oligomer-modified CaCO3 was studied by differential scanning calorimetry in this work. Jeziorny and Mo methods were used to describe the non-isothermal crystallization kinetics of UHMWPE composites. The effect of modified filler content and cooling rate on the crystallization temperature and crystallization rate was discussed. The heterogeneous nucleation of modified CaCO3 slightly increases the crystallization temperature of UHMWPE. The crystallization enthalpy of UHMWPE composites is significantly higher than that of UHMWPE. The crystallization rate of UHMWPE composites depends on the filler contents and cooling rate.
引用
收藏
页码：1111 / 1120
页数：10
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