Morphology and Properties of Aminosilane Grafted MWCNTPolyimide Nanocomposites
Joint Authors
Teng, Chih-Chun
Ma, Chen-Chi M.
Chiang, Chin-Lung
Yuen, Siu-Ming
Source
Issue
Vol. 2008, Issue 2008 (31 Dec. 2008), pp.1-15, 15 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2008-01-03
Country of Publication
Egypt
No. of Pages
15
Main Subjects
Engineering Sciences and Information Technology
Chemistry
Civil Engineering
Abstract EN
This investigation presents a novel method for modifying multiwalled carbon nanotubes (MWCNTs).
The morphology, electrical resistivity, and percolation threshold of MWCNT/Polyimide nanocomposites were studied.
Acid-modified MWCNTs reacted with (3-aminopropyl)triethoxysilane by ionic bonding, and were then mixed with polyamic acid via imidization.
TEM microphotographs reveal that silane-grafted MWCNTs were connected to each other.
The electrical resistivity of silane-grafted MWCNT/polyimide decreased substantially below than that of acid-treated MWCNTs when the silane-modified MWCNT content was lower than 2.4 wt%.
The percolation threshold of the MWCNT/polyimide composites is 1.0 wt% for silane-modified MWCNT and exceeds 7.0 wt% for acid-modified MWCNT.
The acid-modified MWCNT/polyimide composites possess slightly higher glass transition temperatures than that of pure polyimide.
The glass transition temperature of the polyimide increased significantly with silane-modified MWCNT content.
Tensile properties of the polyimide have been improved with the MWCNTs content.
American Psychological Association (APA)
Yuen, Siu-Ming& Ma, Chen-Chi M.& Chiang, Chin-Lung& Teng, Chih-Chun. 2008. Morphology and Properties of Aminosilane Grafted MWCNTPolyimide Nanocomposites. Journal of Nanomaterials،Vol. 2008, no. 2008, pp.1-15.
https://search.emarefa.net/detail/BIM-498005
Modern Language Association (MLA)
Yuen, Siu-Ming…[et al.]. Morphology and Properties of Aminosilane Grafted MWCNTPolyimide Nanocomposites. Journal of Nanomaterials No. 2008 (2008), pp.1-15.
https://search.emarefa.net/detail/BIM-498005
American Medical Association (AMA)
Yuen, Siu-Ming& Ma, Chen-Chi M.& Chiang, Chin-Lung& Teng, Chih-Chun. Morphology and Properties of Aminosilane Grafted MWCNTPolyimide Nanocomposites. Journal of Nanomaterials. 2008. Vol. 2008, no. 2008, pp.1-15.
https://search.emarefa.net/detail/BIM-498005
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-498005
