Polyetherimide/Bucky Gels Nanocomposites with Superior Conductivity and Thermal Stability

被引：19

作者：

Chen, Ye ^{[1
]}

Tao, Jing ^{[1
]}

Deng, Lin ^{[1
]}

Li, Liang ^{[2
]}

Li, Jun ^{[2
]}

Yang, Yang ^{[2
]}

Khashab, Niveen M. ^{[1
]}

机构：

[1] King Abdullah Univ Sci & Technol KAUST, Controlled Release & Delivery Lab, Adv Membranes & Porous Mat Ctr, Thuwal 239556900, Saudi Arabia

[2] King Abdullah Univ Sci & Technol KAUST, Adv Nanofabricat Imaging & Characterizat Core Lab, Thuwal 239556900, Saudi Arabia

来源：

ACS APPLIED MATERIALS & INTERFACES | 2013年 / 5卷 / 15期

关键词：

PEI; MWCNT; nanocomposites; ionic liquid; mechanical properties; conductivity; WALLED CARBON NANOTUBES; IONIC LIQUID; RAMAN-SPECTROSCOPY; FUNCTIONALIZATION; SOLVENTS; SPECTRUM; ROUTE;

D O I：

10.1021/am401792c

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Polyetherimide (PEI) nanocomposites comprising bucky gels of industrial-grade multiwalled carbon nanotubes (MWCNTs) and ionic liquid (IL, 1-butyl-3-methyl imidazolium hexafluorophosphate ([BMIM][PF6])) were prepared. The processing framework for this nanocomposite is simple, reproducible, and easily scalable. The strong interaction between IL and MWCNTs caused the latter to uniformly disperse in the PEI matrix while IL flowed into the gaps between the nanotubes' walls. The nanocomposite exhibited an enhanced conductivity of 2.01 x 10(4) Omega.cm volume resistivity at room temperature; the value decreased dramatically by 12 orders of magnitude, compared to pristine PEI. The IL free ions and MWCNTs networks provided excellent channels for electron transfer. PEI/bucky gels nanocomposites also showed improved thermal stability and high tensile strength. Other than having antiwear properties, this material can have numerous applications in the aerospace and electronics industries. Moreover, our work presents a "green" method toward modified nanocomposites industrial production as IL is environmentally safe and is easily recyclable.

引用

页码：7478 / 7484

页数：7

共 53 条

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