Effects of carbon nanotube functionalization and annealing on crystallization and mechanical properties of melt-spun carbon nanotubes/poly(ethylene terephthalate) fibers

2012 ◽  
Vol 72 (15) ◽  
pp. 1834-1840 ◽  
Author(s):  
Hye Jin Yoo ◽  
Kyoung Hou Kim ◽  
Santosh Kumar Yadav ◽  
Jae Whan Cho
Keyword(s):  
Mechanical Properties ◽  
Carbon Nanotubes ◽  
Carbon Nanotube ◽  
Ethylene Terephthalate ◽  
Poly Ethylene Terephthalate ◽  
Melt Spun ◽  
Poly Ethylene

From lab-scale film preparation to up- scale spinning fibre manufacturing of multiwall carbon nanotube/poly ethylene terephthalate composites

2017 ◽  
Vol 47 (6) ◽  
pp. 1241-1260 ◽  
Author(s):  
Effrosyni D Vogli ◽  
Ozlem Turkarslan ◽  
Sofia M Iconomopoulou ◽  
Deniz Korkmaz ◽  
Amaia Soto Beobide ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Electron Microscope ◽  
Carbon Nanotube ◽  
Ethylene Terephthalate ◽  
Multiwall Carbon Nanotube ◽  
Fibre Reinforcement ◽  
Nucleation Agent ◽  
Poly Ethylene Terephthalate ◽  
Poly Ethylene ◽  
Multiwall Carbon

Carbon nanotubes are among the stiffest and strongest fibres known and they are thus considered as ideal fillers for polymeric fibre reinforcement. Carbon nanotube polymer composites have consequently attracted huge academic and industrial interest with thousands of relevant research works being published every year. In current work, we present a quite integrated study of multiwall carbon nanotube (MWCNT)-reinforced poly ethylene terephthalate (PET) composites prepared at laboratory scale along with industrial melt-spun fibres. For an optimum dispersion of the nanomaterial in the polymer matrix, we proceeded to appropriate functionalization of multiwall carbon nanotubes. The morphology of the composites was inspected by scanning electron microscope and transmission electron microscope, while the physical properties, such as crystallinity and orientation, by differential scanning calorimetry, X-ray diffraction and Raman spectroscopy. The addition of well-dispersed carbon nanotubes acts as a nucleation agent increasing the crystallization of poly ethylene terephthalate matrix, however, decreasing the orientation of either films or fibres. Carbon nanotubes /poly ethylene terephthalate polymer composite films present an increment of Young’s modulus and tensile strength to detriment of failure strain; namely, stiffness is accompanied by a less ductile behaviour. With the addition of carbon nanotubes to poly ethylene terephthalate fibres, a decrease in shrinkage and only a slight improvement in dimensional stability was attained; this once more explains the slow growth of their commercial applications since the mechanical properties of these materials still remain a fraction of the expected theoretical values.

Near infrared laser-heated electrospinning and mechanical properties of poly(ethylene terephthalate)/multi-walled carbon nanotube nanofibers

RSC Advances ◽  
2015 ◽  
Vol 5 (96) ◽  
pp. 78476-78482 ◽  
Author(s):  
Eui Rang Lee ◽  
Jae Whan Cho
Keyword(s):  
Mechanical Properties ◽  
Carbon Nanotube ◽  
Ethylene Terephthalate ◽  
Near Infrared ◽  
Infrared Laser ◽  
Poly Ethylene Terephthalate ◽  
Multi Walled Carbon Nanotube ◽  
Poly Ethylene ◽  
Laser Heated

Carbon nanotube-including poly(ethylene terephthalate) nanofibers with enhanced mechanical properties were electrospun by using near infrared laser-heated electrospinning.

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