Properties of polyvinylidene difluoride-carbon nanotube blends

被引：286
作者：
Levi, N [1 ]
Czerw, R [1 ]
Xing, SY [1 ]
Iyer, P [1 ]
Carroll, DL [1 ]
机构：
[1] Wake Forest Univ, Dept Phys, Ctr Nanotechnol, Winston Salem, NC 27109 USA
来源：
NANO LETTERS | 2004年 / 4卷 / 07期
关键词：
D O I：
10.1021/nl0494203
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Single-walled and multiwalled carbon nanotube blends with polyvinylidene difluoride (and its copolymers) have been characterized. The nanotubes are observed to form a well-dispersed, structurally random nanophase within the fluoropolymer matrix. X-ray analysis coupled with differential scanning calorimetry suggests that the nanophase alters crystal formation within the polymer. For most loadings and nanotube types, the piezoelectric beta-polymorph is significantly enhanced over other crystal phases. Solution-cast composite thin films exhibit enhancements in both the pyroelectric response and mechanical transduction over pure polymer. This is interpreted as resulting from the change in crystallinity.
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收藏
页码：1267 / 1271
页数：5
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