Preparation, morphology, and properties of silane-modified MWCNT/epoxy composites

Both epoxy resin and acid-modified multiwall carbon nanotube (MWCNT) were treated with 3-isocyanatopropyltriethoxysilane (IPTES). Scanning electron microscopy (SEM) and transmission electronic microscope (TEM) images of the MWCNT/epoxy composites have been investigated. Tensile strength of cured sil...

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Bibliographic Details
Published in:Journal of applied polymer science 2010-03, Vol.115 (6), p.3481-3488
Main Authors: Wu, Sheng-Yen, Yuen, Siu-Ming, Ma, Chen-Chi M, Chiang, Chin-Lung, Huang, Yuan-Li, Wu, Hsin-Ho, Teng, Chih-Chun, Yang, Cheng-Chien, Wei, Ming-Hsiung
Format: Article
Language:English
Subjects:
Applied sciences
CNT
Composites
electrical properties
Electronics
epoxy
Exact sciences and technology
Flexural strength
Forms of application and semi-finished materials
mechanical properties
Modulus of rupture in bending
morphology
Multi wall carbon nanotubes
Polymer industry, paints, wood
Polymer matrix composites
Scanning electron microscopy
Technology of polymers
Tensile strength
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Summary:Both epoxy resin and acid-modified multiwall carbon nanotube (MWCNT) were treated with 3-isocyanatopropyltriethoxysilane (IPTES). Scanning electron microscopy (SEM) and transmission electronic microscope (TEM) images of the MWCNT/epoxy composites have been investigated. Tensile strength of cured silane-modified MWCNT (1.0 wt %)/epoxy composites increased 41% comparing to the neat epoxy. Young's modulus of cured silane-modified MWCNT (0.8 wt %)/epoxy composites increased 52%. Flexural strength of cured silane-modified MWCNT (1.0 wt %)/epoxy composites increased 145% comparing to neat epoxy. Flexural modulus of cured silane-modified MWCNT (0.8 wt %)/epoxy composites increased 31%. Surface and volume electrical resistance of MWCNT/epoxy composites were decreased with IPTES-MWCNT content by 2 orders and 6 orders of magnitude, respectively.
ISSN:0021-8995
1097-4628
1097-4628
DOI:10.1002/app.30588