Tunable dielectric properties in polyacrylonitrile/multiwall carbon nanotube composites

被引：11
|
作者：
Palade, Stefania [1 ]
Pantazi, Aida [1 ]
Vulpe, Silviu [1 ]
Berbecaru, Ciceron [1 ,2 ]
Tucureanu, Viorica [3 ]
Oprea, Ovidiu [4 ]
Negrea, R. Florentina [5 ]
Dragoman, Daniela [1 ,6 ]
机构：
[1] Univ Bucharest, Fac Phys, Bucharest 077125, Romania
[2] Romanian Mat Sci Crystal Growth Soc, Bucharest 077125, Romania
[3] Natl Res & Dev Inst Microtechnol, Bucharest 077190, Romania
[4] Univ Politehn Bucuresti, Fac Appl Chem & Mat Sci, Bucharest 011061, Romania
[5] Natl Inst Mat Phys, Bucharest 077125, Romania
[6] Acad Romanian Scientists, Bucharest 050094, Romania
来源：
POLYMER COMPOSITES | 2017年 / 38卷 / 08期
关键词：
NANOFIBERS; TRANSITION;
D O I：
10.1002/pc.23744
中图分类号：
TB33 [复合材料];
学科分类号：
摘要：
Composites containing polyacrylonitrile (PAN) and different mass contents of multiwall carbon nanotubes (MWCNTs) were prepared and structurally investigated. X-ray Diffraction of pristine PAN reveals the presence of crystalline and amorphous phases which change their ratio under thermal annealing and addition of MWCNT. For as prepared samples, thermal analysis reveals two glass transition temperatures, which support the hypothesis that unoriented PAN is a two-phase material. Infrared spectrum of as prepared PAN suggests that the polymer is not stabilized. Dielectric investigations of PAN/MWCNT composites show that permittivity has a strong increase as the MWCNT mass content increases, while the dielectric losses are comparable in all samples. These results suggest that PAN/MWCNT composites could find important applications in electronics. POLYM. COMPOS., 38:1741-1748, 2017. (c) 2015 Society of Plastics Engineers
引用
收藏
页码：1741 / 1748
页数：8
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