TY - CONF
T1 - Supercritical carbon dioxide assisted extrusion of graphene nanofiller reinforced polymers for biomedical applications
AU - Karode, Nireeksha
AU - Fitzhenry, Laurence
AU - Matthew, Siobhan
AU - Walsh, Philip
AU - Coffey, Austin
N1 - Funding Information:
This research is supported by Irish Research Council Government of Ireland Scholarship and partly by Institute of Technology Postgraduate Award. The authors acknowledge the support provided by Applied Polymer Technologies Research Centre, Athlone Institute of Technology (APT, AIT) and Dr Anup Poudel from Centre for Research in Medical Devices, National University of Ireland, Galway, Ireland.
Publisher Copyright:
© 2018 Society of Plastics Engineers. All rights reserved.
PY - 2018
Y1 - 2018
N2 - Over the years, the need for multifunctional medical tubing systems have grown tremendously subsequently increasing the precision tubing design and manufacturing consideration. The requirements smaller dimension along with enhanced mechanical and flexibility characteristics have resulted in elevating the complexity in manufacturing and design considerations, hence higher cost per device. A research gap exists in scientific understanding on the use of nanofillers to match similar characteristics medical tubes. This lack of understanding and industrial transition exists due to filler agglomeration at low aspect ratio and uneven dispersion within the polymer matrix. This study investigates ability of supercritical fluid technology to exfoliate graphene filler particles in order to enhance the mechanical, homogeneity and even dispersion of particles within Pebax matrix. A one step direct scCO2-assisted extrusion to exfoliate and provide even dispersion was demonstrated. These properties were verified using thermomechanical and electrical characterisation.
AB - Over the years, the need for multifunctional medical tubing systems have grown tremendously subsequently increasing the precision tubing design and manufacturing consideration. The requirements smaller dimension along with enhanced mechanical and flexibility characteristics have resulted in elevating the complexity in manufacturing and design considerations, hence higher cost per device. A research gap exists in scientific understanding on the use of nanofillers to match similar characteristics medical tubes. This lack of understanding and industrial transition exists due to filler agglomeration at low aspect ratio and uneven dispersion within the polymer matrix. This study investigates ability of supercritical fluid technology to exfoliate graphene filler particles in order to enhance the mechanical, homogeneity and even dispersion of particles within Pebax matrix. A one step direct scCO2-assisted extrusion to exfoliate and provide even dispersion was demonstrated. These properties were verified using thermomechanical and electrical characterisation.
UR - http://www.scopus.com/inward/record.url?scp=85072982735&partnerID=8YFLogxK
M3 - Paper
AN - SCOPUS:85072982735
T2 - 2018 Society of Plastics Engineers Annual Technical Conference, ANTEC 2018
Y2 - 7 May 2018 through 10 May 2018
ER -