Morphology and thermal degradation studies of melt-mixed poly(lactic acid) (PLA)/poly(ε-caprolactone) (PCL) biodegradable polymer blend nanocomposites with TiO2 as filler

2015 ◽  
Vol 45 ◽  
pp. 93-100 ◽  
Author(s):  
J.P. Mofokeng ◽  
A.S. Luyt
Keyword(s):  
Lactic Acid ◽  
Thermal Degradation ◽  
Polymer Blend ◽  
Biodegradable Polymer ◽  
Poly Lactic Acid ◽  
Degradation Studies ◽  
Blend Nanocomposites

Thermal degradation kinetics of Opuntia Ficus Indica flour and talc-filled poly (lactic acid) hybrid biocomposites by TGA analysis

2021 ◽  
pp. 002199832110082
Author(s):  
Azzeddine Gharsallah ◽  
Abdelheq Layachi ◽  
Ali Louaer ◽  
Hamid Satha
Keyword(s):  
Thermal Stability ◽  
Lactic Acid ◽  
Thermal Degradation ◽  
Degradation Kinetics ◽  
Degradation Mechanism ◽  
Melt Processing ◽  
Thermal Degradation Kinetics ◽  
Poly Lactic Acid ◽  
Opuntia Ficus Indica ◽  
Model Free

This paper reports the effect of lignocellulosic flour and talc powder on the thermal degradation behavior of poly (lactic acid) (PLA) by thermogravimetric analysis (TGA). Lignocellulosic flour was obtained by grinding Opuntia Ficus Indica cladodes. PLA/talc/ Opuntia Ficus Indica flour (OFI-F) biocomposites were prepared by melt processing and characterized using Wide-angle X-ray scattering (WAXS) and Scanning Electron Microscope (SEM). The thermal degradation of neat PLA and its biocomposites can be identified quantitatively by solid-state kinetics models. Thermal degradation results on biocomposites compared to neat PLA show that talc particles at 10 wt % into the PLA matrix have a minor impact on the thermal stability of biocomposites. Loading OFI-F and Talc/OFI-F mixture into the PLA matrix results in a decrease in the maximum degradation temperature, which means that the biocomposites have lower thermal stability. The activation energies (Ea) calculated by the Flynn Wall Ozawa (FWO) and Kissinger Akahira Sunose (KAS) model-free approaches and by model-fitting (Kissinger method and Coats-Redfern method) are in good agreement with one another. In addition, in this work, the degradation mechanism of biocomposites is proposed using Coats-Redfern and Criado methods.

Rheological and mechanical properties of poly(lactic acid)/polystyrene polymer blend

2010 ◽  
Vol 65 (5) ◽  
pp. 509-519 ◽  
Author(s):  
Kotiba Hamad ◽  
Mosab Kaseem ◽  
Fawaz Deri
Keyword(s):  
Mechanical Properties ◽  
Lactic Acid ◽  
Polymer Blend ◽  
Poly Lactic Acid

scholarly journals Tensile fracture behavior of a biodegradable polymer, poly(lactic acid)

2006 ◽  
Vol 25 (5) ◽  
pp. 628-634 ◽  
Author(s):  
Kazuo Arakawa ◽  
Toshio Mada ◽  
Sang-Dae Park ◽  
Mitsugu Todo
Keyword(s):  
Lactic Acid ◽  
Biodegradable Polymer ◽  
Fracture Behavior ◽  
Poly Lactic Acid ◽  
Tensile Fracture
Sign in / Sign up

Export Citation Format

Share Document