Influence of the stretching in the crystallinity of biaxially oriented polypropylene (BOPP) films

被引：0

作者：

F. J. Díez

C. Alvarińo

J. López

C. Ramírez

M. J. Abad

J. Cano

S. García-Garabal

L. Barral

机构：

[1] Departamento de Física,

[2] E.U.P. Ferrol,undefined

[3] Universidad de A Coruna,undefined

[4] Avda.,undefined

[5] Polipropileno de Galicia,undefined

[6] S.A. (POLIGAL),undefined

[7] Departamento de Física,undefined

[8] E.U.P. Ferrol,undefined

[9] Universidad de A Coruna,undefined

[10] Avda.,undefined

[11] Departamento de Física,undefined

[12] E.U.P. Ferrol,undefined

[13] Universidad de A Coruna,undefined

[14] Avda.,undefined

[15] Departamento de Física,undefined

[16] E.U.P. Ferrol,undefined

[17] Universidad de A Coruna,undefined

[18] Avda.,undefined

[19] Departamento de Física,undefined

[20] E.U.P. Ferrol,undefined

[21] Universidad de A Coruna,undefined

[22] Avda.,undefined

[23] Departamento de Física,undefined

[24] E.U.P. Ferrol,undefined

[25] Universidad de A Coruna,undefined

[26] Avda.,undefined

[27] Departamento de Física,undefined

[28] E.U.P. Ferrol,undefined

[29] Universidad de A Coruna,undefined

[30] Avda.,undefined

来源：

Journal of Thermal Analysis and Calorimetry | 2005年 / 81卷

关键词：

isotactic polypropylene; films; orientation; stretching;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

The production of biaxially oriented polypropylene (BOPP) films, by tenter-frame technology in its different steps, was studied to find the crystalline morphology of these films. DMA, DSC, and WAXD measurements and tensile tests were carried out for the cast film, the MDO film (the produced film in the machine direction orienter unit) and BOPP film. The obtained results suggest that the stretchings lead to a strong alignment of the crystals, producing fibers oriented in the stretching direction. This fact can be proved by WAXD, DMA, and tensile tests, moreover the DSC technique is not sensitive to detect these changes.

引用

页码：21 / 25

页数：4

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