Study of silane modified MWNT/polyimide composites by in-situ polymerization

Autor:	Hung-Han Ko, Pi-Sheng Ku, Shang-Chin Chou, Yao-Yi Cheng
Rok vydání:	2011
Předmět:	Nanocomposite Materials science Dodecylbenzene Carbon nanotube law.invention chemistry.chemical_compound Polymerization chemistry Pulmonary surfactant law Thermal stability In situ polymerization Fourier transform infrared spectroscopy Composite material
Zdroj:	The 4th IEEE International NanoElectronics Conference.
DOI:	10.1109/inec.2011.5991708
Popis:	In this study, we attempt to enhance the electrical conductivity of polyimide (PI) by non-covalently modified multiwall carbon nanotubes (MWNTs). The multiwall carbon nanotubes were first oxidized (o-CNT) and modified with nitric acid (n-CNT). The o-CNT and n-CNT were then modified with anionie surfactant (Sodium dodecylbenzene sulfonate) (SDBS) to improve their dispersion in the PI matrix. We also compare the properties of the surfactant modified MWNTs prepared by filtration or centrifuge. We confirmed the successful preparation of the surfactant modified MWNTs by Fourier transform infrared (FTIR), scanning electron microscope (SEM) and UV visible spectroscopy. Furthermore, the thermal stability, electrical and mechanical properties of PI/MWNT nanocomposites can be increased through in-situ polymerization.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::e85ae50033d3028943004ca273e59219 https://doi.org/10.1109/inec.2011.5991708 Zobrazit plný text záznamu