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Electrical conducting polymer nanoco...

Li, Jing.

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Electrical conducting polymer nanocomposites containing graphite nanoplatelets and carbon nanotubes.

Record Type:	Language materials, printed : Monograph/item
Title/Author:	Electrical conducting polymer nanocomposites containing graphite nanoplatelets and carbon nanotubes./
Author:	Li, Jing.
Description:	173 p.
Notes:	Adviser: Jang-Kyo Kim.
Contained By:	Dissertation Abstracts International68-02B.
Subject:	Engineering, Materials Science. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3250557

Electrical conducting polymer nanocomposites containing graphite nanoplatelets and carbon nanotubes.
Li, Jing.

Electrical conducting polymer nanocomposites containing graphite nanoplatelets and carbon nanotubes. - 173 p.

Adviser: Jang-Kyo Kim.

Thesis (Ph.D.)--Hong Kong University of Science and Technology (People's Republic of China), 2007.

Graphite nanoplatelets (GNP) and carbon nanotubes (CNT) are new types of nanoscale filler with high aspect ratios, which are used to produce conducting polymer composites. Compared to conventional conducting fillers such as carbon fibre or carbon black, composites reinforced with GNPs or CNTs have much lower percolation thresholds. In this project, experimental and theoretical studies have been carried out to evaluate the electrical conducting behaviours and to identify the critical factors affecting the percolation threshold of conducting polymer nanocomposites.Subjects--Topical Terms:

1017759
Engineering, Materials Science.

Electrical conducting polymer nanocomposites containing graphite nanoplatelets and carbon nanotubes.
LDR:02640nam 2200289 a 45 001 974393
005 20110929
008 110929s2007 eng d
035 $a (UMI)AAI3250557
035 $a AAI3250557
040 $a UMI $c UMI
100 1 $a Li, Jing. $3 1256720
245 1 0 $a Electrical conducting polymer nanocomposites containing graphite nanoplatelets and carbon nanotubes.
300 $a 173 p.
500 $a Adviser: Jang-Kyo Kim.
500 $a Source: Dissertation Abstracts International, Volume: 68-02, Section: B, page: 1258.
502 $a Thesis (Ph.D.)--Hong Kong University of Science and Technology (People's Republic of China), 2007.
520 $a Graphite nanoplatelets (GNP) and carbon nanotubes (CNT) are new types of nanoscale filler with high aspect ratios, which are used to produce conducting polymer composites. Compared to conventional conducting fillers such as carbon fibre or carbon black, composites reinforced with GNPs or CNTs have much lower percolation thresholds. In this project, experimental and theoretical studies have been carried out to evaluate the electrical conducting behaviours and to identify the critical factors affecting the percolation threshold of conducting polymer nanocomposites.
520 $a GNP/epoxy nanocomposites with good dispersion, improved interfacial adhesion and optimized exfoliation extent of GNP were fabricated. About 1 wt% of percolation threshold was achieved due to the high aspect ratio (104) of GNP. Vapor phase bromination was employed to improve the electrical properties of GNPs. CNT/epoxy nanocomposites with different CNT dispersion states were produced, and the corresponding percolation thresholds varied from 0.1 to above 1 wt%. The critical factors on percolation threshold were identified as disentanglement, uniform distribution and aspect ratio of CNTs.
520 $a An improved analytical model based on the average interparticle distance concept is proposed to predict the percolation threshold of conducting polymer composites containing GNPs and CNTs. For GNP/polymer nanocomposites, the percolation threshold can be predicted based on the geometric shape of GNPs. For CNT/epoxy nanocomposites, the model was further improved by taking the dispersion states of CNTs into consideration. The correlations between percolation threshold, dispersion states and aspect ratios were established.
590 $a School code: 1223.
650 4 $a Engineering, Materials Science. $3 1017759
650 4 $a Engineering, Mechanical. $3 783786
690 $a 0548
690 $a 0794
710 2 0 $a Hong Kong University of Science and Technology (People's Republic of China). $3 1249812
773 0 $t Dissertation Abstracts International $g 68-02B.
790 $a 1223
790 1 0 $a Kim, Jang-Kyo, $e advisor
791 $a Ph.D.
792 $a 2007
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3250557