Study on Crystallization Kinetics of Dynamically-Vulcanized PP/EPDM Blends: Effect of β Nucleating Agent

被引：2

作者：

Yang, Bin ^{[1
,2
]}

Deng, Yan-Li ^{[1
,2
]}

Ru, Xia ^{[1
,2
]}

Miao, Ji-Bin ^{[1
,2
]}

Cao, Ming ^{[1
,2
]}

Qian, Jia-Sheng ^{[1
,2
]}

Su, Li-Fen ^{[1
,2
]}

Chen, Peng ^{[1
,2
]}

Liu, Jing-Wang ^{[3
]}

Wu, La-Xia ^{[4
]}

Pang, Tao ^{[4
]}

机构：

[1] Anhui Univ, Inst High Performance Rubber Mat & Prod, Coll Chem & Chem Engn, Hefei, Anhui, Peoples R China

[2] Anhui Univ, Key Lab Environm Friendly Polymer Mat Anhui Prov, Hefei, Anhui, Peoples R China

[3] Sichuan Univ, Coll Polymer Sci & Engn, State Key Lab Polymer Mat Engn, Chengdu, Sichuan, Peoples R China

[4] Anqing Normal Univ, Collaborat Innovat Ctr Petrochem New Mat, Anqing, Anhui, Peoples R China

来源：

POLYMER-KOREA | 2016年 / 40卷 / 04期

基金：

中国国家自然科学基金;

关键词：

beta nucleating agent; PP/EPDM; crystallization kinetics; toughening; dynamic-vulcanization; PROPYLENE-DIENE RUBBER; NONISOTHERMAL CRYSTALLIZATION; ISOTACTIC POLYPROPYLENE; ISOTHERMAL CRYSTALLIZATION; MECHANICAL-PROPERTIES; MELTING BEHAVIOR; PHASE; MORPHOLOGY;

D O I：

10.7317/pk.2016.40.4.524

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Two types of beta nucleating agents (beta-NAs), aryl dicarboxylic acid amide (TMB-5) and diphenyl phthalate diamine (NT-C), were adopted to modify the polypropylene (PP)/ethylene propylene diene monomer (EPDM) blends, which were prepared by dynamic-vulcanization technology. Wide angle X-ray diffraction (WAXD) and differential scanning calorimetry (DSC) were used to study the crystallization kinetics of PP. Our results showed that the addition of beta-NAs can considerably increase the crystallization temperature, and significantly decrease the spherulite size of beta-PP (L-300). The Jeziorny analysis showed there were similar to 82% and similar to 89% of relative crystallinity generated from the primary crystallization in the composites containing TMB-5 and NT-C, respectively. The crystallization half time (t(0.5)) showed that NT-C improved the overall crystallization rate more effectively than TMB-5. In addition, the peaks of the relative crystallization rate curves were shifted towards higher temperature by 14 and 9 degrees C with the addition of TA4B-5 and NT-C, respectively.

引用

页码：524 / 532

页数：9

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