An alternative method for the determination of the birefringence in stretched polymeric films

被引：6
|
作者：
Russo, R [1 ]
机构：
[1] CNR, Ist Ric & Tecnol Mat Plast, I-80072 Arco Felice, NA, Italy
来源：
POLYMER TESTING | 2001年 / 20卷 / 03期
关键词：
birefringence; isotactic polypropylene;
D O I：
10.1016/S0142-9418(00)00033-7
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
In this paper an alternative experimental set-up for the determination of the birefringence of an oriented polymeric film is introduced. The method is based on the determination of the phase difference Gamma (lambda) using three different laser beams with different wavelengths and a tilting compensator. The accuracy of this method is given by the fact that using laser beams, a very restricted area of the sample can be investigated. (C) 2001 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码：283 / 286
页数：4
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