Biaxial flow-induced alignment of silicate layers in polypropylene/clay nanocomposite foam

被引:258
作者
Okamoto, M
Nam, PH
Maiti, P
Kotaka, T
Nakayama, T
Takada, M
Ohshima, M
Usuki, A
Hasegawa, N
Okamoto, H
机构
[1] Toyota Technol Inst, Adv Polymer Mat Engn, Grad Sch Engn, Tempaku Ku, Nagoya, Aichi 4688511, Japan
[2] Kyoto Univ, Dept Chem Engn, Mat Proc Engn Lab, Kyoto 6068501, Japan
[3] Toyota Cent Res & Dev Labs Inc, Nagakute, Aichi 4801192, Japan
关键词
D O I
10.1021/nl010051+
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Via batch process in an autoclave, we conducted foam processing on polypropylene (PP)/clay nanocomposite (PPCN) by using supercritical CO2 as foaming agent under 10 MPa at 134.7 degreesC. Through transmission electron microscopy observation, the biaxial flow-induced alignment of clay particles along the cell boundary was identified. Such aligning behavior of clay particles helps cells to withstand the stretching force from breaking the so thin cell wall and to improve the modulus of the foam.
引用
收藏
页码:503 / 505
页数:3
相关论文
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Klempner D., 1991, HDB POLYM FOAMS FOAM
[2]  
NAM PH, 2001, IN PRESS POLYMER
[3]  
NAM PH, 2001, UNPUB POLYM ENG SCI
[4]   A house of cards structure in polypropylene/clay nanocomposites under elongational flow [J].
Okamoto, M ;
Nam, PH ;
Maiti, P ;
Kotaka, T ;
Hasegawa, N ;
Usuki, A .
NANO LETTERS, 2001, 1 (06) :295-298