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Poly(butylene terephthalate)/oxytetramethylene + oxidized single wall carbon nanotubes hybrids : mechanical and tribological behavior
Publikationstyp
Conference Paper
Date Issued
2011
Sprache
English
Volume
1
Start Page
604
End Page
607
Citation
Technical Proceedings of the 2011 NSTI Nanotechnology Conference and Expo, NSTI-Nanotech 2011 ; 13 June 2011 through 16 June 2011 ; Vol.1 (): 604-607 (2011)
Contribution to Conference
Scopus ID
Publisher
CRC Press
We have created functionalized single wall carbon nanotubes (fSWCNTs) before placing them in PBT/PTMO, a block copolymer of semicrystalline poly(butylene terephthtalate) (PBT) with amorphous poly(oxytetramethylene) (PTMO). Together with the neat copolymer, nanohybrids containing 0.1, 0.2, 0.3 and 0.5 wt. % fSWCNTs were investigated. Scanning electron microscopy (SEM) shows significant agglomeration of CNTs at 0.2% CNTs concentration. Tensile Young modulus as a function of concentration diagram has a maximum at 0.2% CNTs. Tensile elongation at break is the highest at 0.3% CNTs. Repetitive tensile tests were also performed; each loading cycle results in lowering the tensile modulus.
Subjects
Brittleness
Nanohybrids
Scratch resistance
Sliding wear
Tensile testing
DDC Class
600: Technik
620: Ingenieurwissenschaften