A novel -nucleating agent for isotactic polypropylene

被引：13
|
作者：
Pan, Chunmeng [1 ]
Qin, Wei [1 ]
Chen, Lan [1 ]
Xin, Zhong [1 ]
Zhao, Shicheng [1 ]
Ye, Chunlin [2 ]
机构：
[1] East China Univ Sci & Technol, Shanghai Key Lab Multiphase Mat Chem Engn, Dept Prod Engn, Shanghai 200237, Peoples R China
[2] Shanghai Res Inst Chem Ind, Shanghai 200062, Peoples R China
来源：
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY | 2018年 / 134卷 / 03期
基金：
国家重点研发计划; 中国国家自然科学基金;
关键词：
Isotactic polypropylene; Nucleating agent; OBCHED; Crystallization; Mechanical properties; BETA-CRYSTALLINE FORM; NONISOTHERMAL CRYSTALLIZATION; MECHANICAL-PROPERTIES; METALLIC SALTS; PIMELIC ACID; BEHAVIOR; COMPOSITES; MORPHOLOGY; KINETICS; SODIUM;
D O I：
10.1007/s10973-018-7768-8
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
A series of metal salts of 7-oxabicyclo[2.2.1]hept-5-ene-2,3-dicarboxylic acid were synthesized, and their nucleation efficiency in isotactic polypropylene (iPP) was investigated. The results showed that potassium 7-oxabicyclo[2.2.1]hept-5-ene-2,3-dicarboxylate (OBCHE19) is an effective -nucleating agent. Then, the effect of OBCHE19 concentration on the relative content of -crystals (K) and mechanical properties of iPP was investigated. The results indicated that the maximum K reached 0.82 and impact strength increased by 125% compared to that of pure iPP when the content of OBCHE19 is 0.1mass%. Furthermore, the non-isothermal crystallization kinetics and crystallization activation energy were investigated by the Caze method and Kissinger method, respectively.
引用
收藏
页码：2029 / 2040
页数：12
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