چکیده مقاله
The aim of this study was to investigate the effect of solid state drawing at different conditions on mechanical and thermal properties of PLA/GO nanocomposite films For this purpose, PLA/GO films were prepared by melt blending followed by compression molding The films were uniaxially drawn at ratios of 2 and 3, temperatures of 60 and 70 œC, and speeds of 20 and 50 mm/min Field emissions scanning electron microscopy revealed oriented structure for the samples after the drawing The tensile testing and differential scanning calorimetry results indicated that all the properties were improved for all the drawn samples compared to the undrawn films For the drawn samples, the stiffness, strength, glass transition temperature, and degree of crystallinity were increased by increasing the drawing ratio from 2 to 3 and also the temperature from 60 to 70 œC In addition, the stiffness and strength were enhanced by increasing the drawing speed from 20 to 50 mm/min Hence, this study introduces a new approach to improve the properties of renewable polymers for packaging and medical applications
کلیدواژهها
نویسندگان
Ehsan Bagheri
MSc Graduate of Manufacturing Engineering, Department of Mechanical Engineering, Isfahan University of Technology,Isfahan, P O Box ۸۴۱۵۶ ۸۳۱۱۱, Iran
Mohammad Ali Hassannia
PhD Student of Polymer Engineering, Department of Chemical Engineering, Isfahan University of Technology, Isfahan,P O Box ۸۴۱۵۶ ۸۳۱۱۱, Iran
Hadi Rahnama
MSc Graduate of Polymer Engineering, Department of Chemical Engineering, Isfahan University of Technology, Isfahan,P O Box ۸۴۱۵۶ ۸۳۱۱۱, Iran
Peiman Mosaddegh
Associate Professor of Mechanical Engineering, Department of Mechanical Engineering, Isfahan University of Technology,Isfahan, P O Box ۸۴۱۵۶ ۸۳۱۱۱, Iran
Tayebeh Behzad
Associate Professor of Chemical Engineering, Department of Chemical Engineering, Isfahan University of Technology,Isfahan, P O Box ۸۴۱۵۶ ۸۳۱۱۱, Iran
شیوه ارجاع
Bagheri, Ehsan and Hassannia, Mohammad Ali and Rahnama, Hadi and Mosaddegh, Peiman and Behzad, Tayebeh,1399,Mechanical and Thermal Properties of Oriented Polylactic acid/Graphene oxide Nanocomposite Films,17th National Conference and 6th International Conference on Manufacturing Engineering,Tehran
ارائهشده در
مجموعه مقالات هفدهمین همایش ملی و ششمین کنفرانس بین المللی مهندسی ساخت و تولید12 اسفند 1399 · تهران