Influence of Cooling Rate on Crystallization Behavior of Semi-Crystalline Polypropylene: Experiments and Mathematical Modeling

被引：18

作者：

Hu, Yeyuan ^{[1
]}

Liao, Yang ^{[1
]}

Zheng, Yanyan ^{[2
]}

Ikeda, Kosuke ^{[3
]}

Okabe, Ryoji ^{[3
]}

Wu, Ruifen ^{[3
]}

Ozaki, Ryota ^{[3
]}

Xu, Jun ^{[2
]}

Xu, Qingyan ^{[1
]}

机构：

[1] Tsinghua Univ, Sch Mat Sci & Engn, Key Lab Adv Mat Proc Technol, Minist Educ, Beijing 100084, Peoples R China

[2] Tsinghua Univ, Dept Chem Engn, Adv Mat Lab Minist Educ, Beijing 100084, Peoples R China

[3] Mitsubishi Heavy Ind Co Ltd, Composite Lab Res & Innovat Ctr, Nagasaki 8510392, Japan

来源：

POLYMERS | 2022年 / 14卷 / 17期

关键词：

cooling rate; crystallization; polypropylene; Flash DSC; PVT model; ISOTACTIC POLYPROPYLENE; THERMAL-CONDUCTIVITY; POLYMERS; TEMPERATURE; PP; CRYSTALLINITY; COMPOSITES; MORPHOLOGY; KINETICS;

D O I：

10.3390/polym14173646

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

As crystallization behavior has a great effect on the injection molding process, the flash differential scanning calorimetry (FSC) method was employed to study the influence of cooling rate on the crystallization behavior of a semi-crystalline polypropylene (PP). As the experimental results show, crystallization temperatures (onset crystallization temperature and maximum crystallization temperature) and crystallinity decrease as the cooling rate increases. In addition, the corresponding mathematical models were established to describe the relationship between the crystallization temperatures/crystallinity and the cooling rate. A revised Tait equation was also carried out based on the mathematical models.

引用

页数：9

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