Role of interfacial interaction on the crystallization behavior and melting characteristics of PP/Nano-CaCO3 composites modified with different compatibilizers

被引：0
|
作者：
Wang Y. [1 ,2 ]
Shen H. [1 ,3 ]
Li G. [1 ]
Mai K. [1 ]
机构：
[1] Key Laboratory of Polymeric Composites and Functional Materials, School of Chemistry and Chemical Engineering, Sun Yat-sen University, Guangzhou
[2] Midea Refrigeration Equipment Co. Ltd., Fushan
[3] School of Engineering, Sun Yat-sen University, Guangzhou
来源：
E-Polymers | 2010年
关键词：
All Open Access; Bronze;
D O I：
10.1515/epoly.2010.10.1.574
中图分类号：
学科分类号：
摘要：
PP/nano-CaCO3 composites with different interfacial interaction were prepared by addition of compatibilizers with the same polar groups but different backbones. The non-isothermal and isothermal crystallization behavior of PP/nano-CaCO3 composites was investigated using differential scanning calorimetry (DSC). The results indicated that the interfacial interaction between PP and nano-CaCO3 increased the crystallization temperature and crystallization rate of PP due to the heterogeneous nucleation of nano-CaCO3. The interfacial interaction between nano-CaCO 3 and compatibilizer further increased the crystallization temperature and crystallization rate of PP and induced the formation of β-crystal of PP due to the synergistic effect of heterogeneous nucleation between nano-CaCO3 and compatibilizer. This synergistic effect of heterogeneous nucleation between nano-CaCO3 and compatibilizer depended on the interfacial interaction between compatibilizer and PP matrix. The increased compatibility between compatibilizer and PP matrix favoured the heterogeneous nucleation between nano-CaCO3 and compatibilizer.
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