TY - JOUR
T1 - Investigation of the Effects of Magnetic Additive Cobalt/Carboxyl functionalized Multi-walled Carbon Nanotubes for Enhancing the Machinability of Polycarbonate Composites under Magnetic Field
AU - Gao, Ming
AU - Cheung, Chi Fai
AU - Wang, Bo
AU - Wong, Wai Yeung
N1 - Funding Information:
The authors would like to express their sincere thanks to the Research Committee of The Hong Kong Polytechnic University for their financial support of the project through a PhD studentship (project code: RK24). The work described in this paper was also supported by the funding support to the State Key Laboratories in Hong Kong from the Innovation and Technology Commission (ITC) of the Government of the Hong Kong Special Administrative Region (HKSAR), China.
Publisher Copyright:
© Published under licence by IOP Publishing Ltd.
PY - 2021/6/4
Y1 - 2021/6/4
N2 - Polycarbonate (PC) has been widely applied in various industrial areas including biomedical, optical, and defence systems. According to the optical requirements of PC devices, a high-quality surface with better surface finish and transparency are necessary. However, due to the mechanical property of PC, poor surface finish due to tool marks generated during machining [1]. In this paper, a novel fabrication process is presented for enhancing the machineability in terms of higher ductility of PC without significant loss of transparency by mixing with cobalt/carboxyl multi-walled carbon nanotubes (Co/COOH-MWCNTs). Carboxyl worked as a bridge between Co and PC chain, under a magnetic field, Co caused the movement of PC chains, and connect better with polymer chains. Experimental investigations show that a low concentration of Co/COOH-MWCNTs can increase the ductility of PC by fibre reinforcing effects. The experimental results provide promising guidance for enhancing the machinability of PC by appropriate concentration of the additive.
AB - Polycarbonate (PC) has been widely applied in various industrial areas including biomedical, optical, and defence systems. According to the optical requirements of PC devices, a high-quality surface with better surface finish and transparency are necessary. However, due to the mechanical property of PC, poor surface finish due to tool marks generated during machining [1]. In this paper, a novel fabrication process is presented for enhancing the machineability in terms of higher ductility of PC without significant loss of transparency by mixing with cobalt/carboxyl multi-walled carbon nanotubes (Co/COOH-MWCNTs). Carboxyl worked as a bridge between Co and PC chain, under a magnetic field, Co caused the movement of PC chains, and connect better with polymer chains. Experimental investigations show that a low concentration of Co/COOH-MWCNTs can increase the ductility of PC by fibre reinforcing effects. The experimental results provide promising guidance for enhancing the machinability of PC by appropriate concentration of the additive.
UR - http://www.scopus.com/inward/record.url?scp=85108327245&partnerID=8YFLogxK
U2 - 10.1088/1742-6596/1919/1/012003
DO - 10.1088/1742-6596/1919/1/012003
M3 - Conference article
SN - 1742-6588
VL - 1919
JO - Journal of Physics: Conference Series
JF - Journal of Physics: Conference Series
M1 - 012003
ER -