التفاصيل البيبلوغرافية
| العنوان: |
A comparative study of fracture behavior between carbon black/poly(ethylene terephthalate) and multiwalled carbon nanotube/poly(ethylene terephthalate) composite films. |
| المؤلفون: |
Haruki Kobayashi, Masatoshi Shioya, Tomoya Tanaka, Toshihira Irisawa, Shinichi Sakurai, Katsuhiro Yamamoto |
| المصدر: |
Journal of Applied Polymer Science; Oct2007, Vol. 106 Issue 1, p152-160, 9p |
| مصطلحات موضوعية: |
NANOTUBES, X-ray diffraction, PARTICLES (Nuclear physics), ELECTROMAGNETIC waves |
| مستخلص: |
Fracture behavior of amorphous poly(ethylene terephthalate) (PET) films added multiwalled carbon nanotube (MWCNT) has been compared with that of the PET films added with carbon black (CB) to elucidate the effects of the large aspect ratio of MWCNT. Fracture toughness has been evaluated using the essential work of fracture tests. Evolution of the crazes has been analyzed by conducting timeâresolved smallâangle Xâray scattering measurements during tensile deformation of the films at room temperature using synchrotron radiation. CB and MWCNT increased the fracture toughness of the PET film by increasing the plastic work of fracture. This resulted from the effects of the fillers to prevent the localization of deformation upon the crazes formed at earlier stages of tensile deformation and to retard the growth of the fibrils in the crazes to a critical length. The CB particles provided a number of sites where the crazes were preferably formed due to stress concentration. In the case of MWCNT, on the other hand, the widening of the crazes formed at earlier stages was suppressed due to the bridging effect arising from the large aspect ratio of MWCNT. © 2007 Wiley Periodicals, Inc. J Appl Polym Sci 2007 [ABSTRACT FROM AUTHOR] |
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| قاعدة البيانات: |
Complementary Index |
