Effect of pressure and shear stress on crystallization behaviors in injection molding

被引：27

作者：

Ito, H

Minagawa, K

Takimoto, J

Tada, K

Koyama, K

机构：

[1] YAMAGATA UNIV,DEPT MAT SCI & ENGN,YONEZAWA,YAMAGATA 992,JAPAN

[2] TSURUOKA NATL COLL TECHNOL,DEPT MAT & BIOL ENGN,TSURUOKA,YAMAGATA,JAPAN

[3] UNIV TOKUSHIMA,DEPT CHEM SCI & TECHNOL,TOKUSHIMA 770,JAPAN

[4] YAMAGATA UNIV,DEPT MAT SCI & ENGN,YONEZAWA,YAMAGATA 992,JAPAN

[5] PLAMEDIA RES CORP,TOKYO,JAPAN

来源：

INTERNATIONAL POLYMER PROCESSING | 1996年 / 11卷 / 04期

关键词：

D O I：

10.3139/217.960363

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

We studied in detail the effects of pressure and shear stress on the crystallization behaviors during injection molding process. Crystallization of isotactic-polypropylene (iPP) was simulated for various injection flow rates. The crystallization started during the filling stage under long filling condition. Moreover, the crystallization in some layers showed two-step growth behavior, while in other layers the crystallization does not progress during the packing-cooling stage. Since pressure becomes very high during molding process under long filling time condition, the change of pressure is the most important factor governing the crystallization.

引用

页码：363 / 368

页数：6

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