TY - GEN
T1 - Effect of processing conditions on mechanical and barrier properties of PLA/Clay nanocomposites
AU - Nakade, Yoji
AU - Tanaka, Tatsuya
AU - Arao, Yoshihiko
PY - 2014
Y1 - 2014
N2 - Elongation, toughness, and barrier properties of PLA are not sufficient to use for many applications such as food packing and films. But, elongation, toughness and gas barrier can be improved by addingnanoclay in the PLA. Now, the most used Melt-Compounding Method is the twin-screw extruder because of productivity and continuity. The processing conditions such as screw configurations and screw speed determine the dispersions state of nanoclay in the matrix: hence affect the mechanical and barrier properties of PLA/clay nanocomposites. We prepared nanocomposites using three types of screw configulations with various screw speed. Dispersion state of nanoclays in the PLA was evaluated by TEM observation and rheology tests. It was found the screw configurations with mixing and blister elements showed the best in dispersion of clay. Furthermore, elongation of PLA nanocomposites increased from 5% to 15% with improving the dispersion state of nanocomposites. We confirmed that the processing consitions of twin-screw extruder was important to enhance the properties of PLA/clay nanocomposites.
AB - Elongation, toughness, and barrier properties of PLA are not sufficient to use for many applications such as food packing and films. But, elongation, toughness and gas barrier can be improved by addingnanoclay in the PLA. Now, the most used Melt-Compounding Method is the twin-screw extruder because of productivity and continuity. The processing conditions such as screw configurations and screw speed determine the dispersions state of nanoclay in the matrix: hence affect the mechanical and barrier properties of PLA/clay nanocomposites. We prepared nanocomposites using three types of screw configulations with various screw speed. Dispersion state of nanoclays in the PLA was evaluated by TEM observation and rheology tests. It was found the screw configurations with mixing and blister elements showed the best in dispersion of clay. Furthermore, elongation of PLA nanocomposites increased from 5% to 15% with improving the dispersion state of nanocomposites. We confirmed that the processing consitions of twin-screw extruder was important to enhance the properties of PLA/clay nanocomposites.
KW - Barrier
KW - Elongation
KW - PLA/Clay nanocomposites
UR - http://www.scopus.com/inward/record.url?scp=84915750622&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84915750622&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:84915750622
T3 - 16th European Conference on Composite Materials, ECCM 2014
BT - 16th European Conference on Composite Materials, ECCM 2014
PB - European Conference on Composite Materials, ECCM
T2 - 16th European Conference on Composite Materials, ECCM 2014
Y2 - 22 June 2014 through 26 June 2014
ER -