Crystallization and melting behavior of isotactic polypropylene composites filled by zeolite supported β-nucleator

被引：22
作者：
Jiang, Juan [1 ,2 ]
Li, Gu [2 ]
Tan, Nanshu [2 ]
Ding, Qian [1 ,2 ]
Mai, Kancheng [1 ,2 ]
机构：
[1] Sun Yat Sen Univ, Inst Mat Sci, Sch Chem & Chem Engn, Guangzhou 510275, Guangdong, Peoples R China
[2] Key Lab Designed Synth & Applicat Polymer Mat Gua, Minist Educ, Key Lab Polymer Composites & Funct Mat, Guangzhou 510275, Guangdong, Peoples R China
来源：
THERMOCHIMICA ACTA | 2012年 / 546卷
基金：
中国博士后科学基金;
关键词：
Isotactic polypropylene; Zeolite; beta-Nucleating agent; Crystallization; MECHANICAL-PROPERTIES; FRACTURE-TOUGHNESS; AGENT; PHASE; MEMBRANES; SURFACE; ALPHA; NANO-CACO3; PP; REINFORCEMENT;
D O I：
10.1016/j.tca.2012.07.032
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
In order to prepare the zeolite filled beta-iPP composites, the calcium pimelate as beta-nucleator supported on the surface of zeolite (beta-zeolite) was prepared by the interaction between calcified zeolite and pimelic acid. The beta-nucleation, crystallization behavior and melting characteristic of zeolite, calcified zeolite and beta-zeolite filled iPP composites were investigated by differential scanning calorimetry and wide-angle X-ray diffractometer. The results indicated that addition of the zeolite and calcified zeolite as well as beta-zeolite increased the crystallization temperature of iPP. The zeolite and calcified zeolite filled iPP composites mainly crystallized in the alpha-crystal form and the strong beta-heterogeneous nucleation of beta-zeolite results in the formation of only beta-crystal in beta-zeolite filled iPP composites. The zeolite filled beta-iPP composites with high beta-crystal contents (above 0.90) can be easily obtained by adding beta-zeolite into iPP matrix. (C) 2012 Elsevier B.V. All rights reserved.
引用
收藏
页码：127 / 133
页数：7
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