Semi-continuous shear flow investigation into medium and high molecular weight polyhydroxybutyrate blends

被引：0
|
作者：
Sharma, Llakshmi [1 ]
Ogino, Yoshino
Kanaya, Toshiji
Iwata, Tadahisa
Doi, Yoshiharu
机构：
[1] Kyoto Univ, Inst Chem Res, Polymer Mat Sci Lab, Kyoto 6110011, Japan
[2] Riken Inst Phys & Chem Res, Inst Phys & Chem Res, Polymer Chem Lab, Wako, Saitama 3510198, Japan
来源：
POLYMERS & POLYMER COMPOSITES | 2007年 / 15卷 / 02期
关键词：
D O I：
10.1177/096739110701500210
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
We investigated the changes in morphology of medium and high molecular weight polyhydroxybutyrate blends (MMWT/HMWT PHB) during shearing, using various in-situ theological methods. On single shearing, fibres were formed only at the highest MMWT/HMWT ratio of (97/3). This was attributed to a critical orientation molecular weight. Fibre formation took place with all compositions and there was a rapid initial shish formation on multiple shearing. This is evidence for a partial shish based on the Janeschitz-Kriegl model.
引用
收藏
页码：161 / 165
页数：5
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