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Effect of Carbon Nanotube Deposition Time to the Surface of Carbon Fibres on Flexural Strength of Resistance Welded Carbon Fibre Reinforced Thermoplastics Using Carbon Nanotube Grafted Carbon Fibre as Heating Element
- Source :
- Journal of Composites Science, Volume 3, Issue 1, Journal of Composites Science, Vol 3, Iss 1, p 9 (2019)
- Publication Year :
- 2019
- Publisher :
- Multidisciplinary Digital Publishing Institute, 2019.
-
Abstract
- In recent years, carbon fibre reinforced thermoplastics (CFRTP) are expected to be used as lightweight structural materials for mass-produced vehicles. CFRTP with thermoplastics as matrix allows us to weld them using melting of matrix by heating. We have been developing a direct resistance heating method, which uses carbon fibres as the resistance heating element. Carbon nanotube (CNT) is expected to be used as additive to FRP and we reported that the fibre/matrix interfacial shear strength was improved by grafting CNT on the surface of carbon fibres and tensile lap-shear strength was improved by using CNT grafted carbon fibre as the heating element for welding. For the practical use of CFRTP for structural parts, flexural strength is also necessary to be evaluated. In this study, flexural test was carried out to clarify the effect of CNT deposition time to the surface of carbon fibres on flexural strength of resistance welded CFRTP using CNT grafted carbon fibre as the heating element. The highest flexural strength was obtained when CNT10, for which CNT is grafted on the carbon fibres for deposition time of 10 min, was used for the heating element of resistance welding. In the case of CNT deposition time of 60 min, the lowest flexural strength was obtained because of the poor impregnation of the resin into the carbon fibre due to the excess CNT on the carbon fibres.
- Subjects :
- Materials science
carbon fibre reinforced thermoplastics (CFRTP)
02 engineering and technology
Welding
Carbon nanotube
Electric resistance welding
01 natural sciences
lcsh:Technology
law.invention
Flexural strength
law
0103 physical sciences
Ultimate tensile strength
Composite material
lcsh:Science
Engineering (miscellaneous)
CNT grafted carbon fibre
010302 applied physics
Structural material
resistance welding
Heating element
lcsh:T
carbon nanotube (CNT)
Fibre-reinforced plastic
021001 nanoscience & nanotechnology
CNT deposition time
flexural test
flexural strength
Ceramics and Composites
lcsh:Q
0210 nano-technology
Subjects
Details
- Language :
- English
- ISSN :
- 2504477X
- Database :
- OpenAIRE
- Journal :
- Journal of Composites Science
- Accession number :
- edsair.doi.dedup.....530334ae0c7e6365e63b88c533c59f1a
- Full Text :
- https://doi.org/10.3390/jcs3010009