Rheological and mechanical properties of surface modified multi-walled carbon nanotube-filled PET composite
Cited 60 times inCited 59 times in
- Rheological and mechanical properties of surface modified multi-walled carbon nanotube-filled PET composite
- Jin, Sang Hyun; Park, Young-Bin; Yoon, Kwan Han
- A. Nanostructures; A. Polymer-matrix composites (PMCs); B. Mechanical properties; D. Raman spectroscopy; D. Scanning electron microscopy (SEM)
- Issue Date
- ELSEVIER SCI LTD
- COMPOSITES SCIENCE AND TECHNOLOGY, v.67, no.15-16, pp.3434 - 3441
- Poly(ethylene terephthalate) (PET)/multi-walled carbon nanotube (MWCNT) composites were prepared by in situ polymerization. To improve the dispersion of MWCNTs in PET matrix, the surface modified MWCNTs having acid groups (acid-MWCNT) and diamine groups (diamine-MWCNT) were used. The functional groups on the surface of modified MWCNTs were confirmed by infrared (IR) spectrometry. SEM analysis showed better dispersion of diamine-MWCNTs as compared to pristine-MWCNTs and acid-MWCNTs in the PET. The reaction between PET and diamine-MWCNTs was evidenced by the shifting of the G band to a higher frequency in Raman spectroscopy and an increase of the complex viscosity in rheological properties. The composites containing functionalized MWCNTs showed a large increase in the tensile strength and modulus. The PET/diamine-MWCNT composites showed maximum tensile strength and modulus increases by 350% and 290% at 0.5 and 2.0 wt%, respectively, as compared to pure PET.
- ; Go to Link
- Appears in Collections:
- MEN_Journal Papers
- Files in This Item:
can give you direct access to the published full text of this article. (UNISTARs only)
Show full item record
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.