Title :
Synthesis and dielectric property of polyimide/MWNTs nanocomposite films
Author :
Tian, Feng ; Zhang, Mingyan ; Wu, Zijian ; Zhu, Xiaoying ; Penghe Diao ; Wang, Jihua
Author_Institution :
Key Lab. of Eng. Dielectric & Its Applic., Harbin Univ. of Sci. & Technol., Harbin, China
Abstract :
Multi-wall carbon nanotubes (MWNTs) were acid modified by refluxing with the mixture of H2SO4 and HNO3 under ultrasound, then were attended into the synthesis of polyamic acid (PAA), precursor of polyimide (PI) to form PI/MWNTs films via in situ polymerization process. The dispersion situation of MWNTs in the nanocomposites was characterized using scanning electronic microscopy (SEM); dielectric properties of nanoflims were tested.
Keywords :
carbon nanotubes; hydrogen compounds; nitrogen compounds; sulphur compounds; H2SO4; HNO3; multi-wall carbon nanotubes; nanocomposite films; nanoflims dielectric properties; polyamic acid; polyimide precursor; polymerization process; refluxing; scanning electronic microscopy; ultrasound; Dielectric breakdown; Dielectric materials; Dielectrics and electrical insulation; Electric breakdown; Morphology; Nanoparticles; Polyimides; Polymer films; Pulse width modulation; Pulse width modulation converters; Polyimide; dielectric properties; multi-wall carbon nanotubes;
Conference_Titel :
Properties and Applications of Dielectric Materials, 2009. ICPADM 2009. IEEE 9th International Conference on the
Conference_Location :
Harbin
Print_ISBN :
978-1-4244-4367-3
Electronic_ISBN :
978-1-4244-4368-0
DOI :
10.1109/ICPADM.2009.5252196
