TY - JOUR
T1 - Mechanical and fracture properties of poly(ethylene terephthalate) with glycol/carbon nanotube nanocomposite films under accelerated weathering conditions
AU - Choi, Min Seok
AU - Lee, Jin Hyoung
AU - Choi, Byoung Ho
N1 - Funding Information:
The study was supported by the Technology Innovation Program Project (No. 10076562) of Korea Evaluation Institute of Industrial Technology (KEIT) funded by the Ministry of Trade, Industry & Energy (MI, Korea). This work was also supported by Korea University.
Publisher Copyright:
© 2021, The Korean Society of Mechanical Engineers and Springer-Verlag GmbH Germany, part of Springer Nature.
PY - 2021/9
Y1 - 2021/9
N2 - In this study, we developed a nanocomposite with one of the most popular engineering thermoplastics, i.e., poly(ethylene terephthalate) with glycol (PETG), and multi-walled carbon nanotubes (CNT). Commercial PETG pellets were extruded into 50-μm thick films with and without 1.0 and 2.0 weight percentages (wt%) of CNT. PETG films and PETG, CNT nanocomposite films were artificially degraded in a customized ultraviolet (UV) weathering apparatus with UV radiance for a certain temperature. They were analyzed in three stages. In the first stage, we attempted to quantify the effect of the accelerated weathering via ultraviolet-visible spectroscopy (UV-Vis) and x-ray photoelectron spectroscopy analyses (XPS). In the second stage, mechanical and fracture characteristics were examined by tensile tests and essential work of fracture (EWF) tests. Finally, fracture surfaces of PETG films and PETG, CNT nanocomposite films were observed via scanning electron microscope (SEM) images.
AB - In this study, we developed a nanocomposite with one of the most popular engineering thermoplastics, i.e., poly(ethylene terephthalate) with glycol (PETG), and multi-walled carbon nanotubes (CNT). Commercial PETG pellets were extruded into 50-μm thick films with and without 1.0 and 2.0 weight percentages (wt%) of CNT. PETG films and PETG, CNT nanocomposite films were artificially degraded in a customized ultraviolet (UV) weathering apparatus with UV radiance for a certain temperature. They were analyzed in three stages. In the first stage, we attempted to quantify the effect of the accelerated weathering via ultraviolet-visible spectroscopy (UV-Vis) and x-ray photoelectron spectroscopy analyses (XPS). In the second stage, mechanical and fracture characteristics were examined by tensile tests and essential work of fracture (EWF) tests. Finally, fracture surfaces of PETG films and PETG, CNT nanocomposite films were observed via scanning electron microscope (SEM) images.
KW - Accelerated weathering
KW - Carbon nanotubes
KW - Essential work of fracture test
KW - Nanocomposite film
UR - http://www.scopus.com/inward/record.url?scp=85111150836&partnerID=8YFLogxK
U2 - 10.1007/s12206-021-2107-6
DO - 10.1007/s12206-021-2107-6
M3 - Article
AN - SCOPUS:85111150836
SN - 1738-494X
VL - 35
SP - 3837
EP - 3845
JO - Journal of Mechanical Science and Technology
JF - Journal of Mechanical Science and Technology
IS - 9
ER -