Effect of short jute fibers on the hydrolytic degradation behavior of poly(lactic acid)

2020 ◽  
Vol 178 ◽  
pp. 109214
Author(s):  
Ning Jiang ◽  
Yaomin Li ◽  
Yuankun Li ◽  
Tao Yu ◽  
Yan Li ◽  
...  
Keyword(s):  
Lactic Acid ◽  
Hydrolytic Degradation ◽  
Poly Lactic Acid ◽  
Degradation Behavior ◽  
Jute Fibers

Effect of reinforcing particles on hydrolytic degradation behavior of poly (lactic acid) composites

2016 ◽  
Vol 96 ◽  
pp. 248-254 ◽  
Author(s):  
Mei-Xian Li ◽  
Sung-Ha Kim ◽  
Sung-Woong Choi ◽  
Koichi Goda ◽  
Woo-Il Lee
Keyword(s):  
Lactic Acid ◽  
Hydrolytic Degradation ◽  
Poly Lactic Acid ◽  
Degradation Behavior ◽  
Reinforcing Particles

Morphological behaviour of poly(lactic acid) during hydrolytic degradation

2008 ◽  
Vol 93 (10) ◽  
pp. 1964-1970 ◽  
Author(s):  
Xiaoqing Zhang ◽  
Maria Espiritu ◽  
Alex Bilyk ◽  
Lusiana Kurniawan
Keyword(s):  
Lactic Acid ◽  
Hydrolytic Degradation ◽  
Poly Lactic Acid

Synthesis and hydrolytic degradation of graft copolymers containing poly(lactic acid) side chains

2002 ◽  
Vol 76 (3) ◽  
pp. 411-417 ◽  
Author(s):  
Valérie Langlois ◽  
Karine Vallee-Rehel ◽  
Jean Jacques Peron ◽  
Alain le Borgne ◽  
Michael Walls ◽  
...  
Keyword(s):  
Lactic Acid ◽  
Graft Copolymers ◽  
Hydrolytic Degradation ◽  
Poly Lactic Acid ◽  
Side Chains

scholarly journals Improved Weathering Performance of Poly(Lactic Acid) through Carbon Nanotubes Addition: Thermal, Microstructural, and Nanomechanical Analyses

Biomimetics ◽  
2020 ◽  
Vol 5 (4) ◽  
pp. 61
Author(s):  
Thevu Vu ◽  
Peyman Nikaeen ◽  
William Chirdon ◽  
Ahmed Khattab ◽  
Dilip Depan
Keyword(s):  
Carbon Nanotubes ◽  
Lactic Acid ◽  
Uv Light ◽  
Degradation Mechanism ◽  
Decomposition Temperature ◽  
Poly Lactic Acid ◽  
Accelerated Weathering ◽  
Degradation Behavior ◽  
Scanning Calorimetry ◽  
Norrish Type

To understand the interrelationship between the microstructure and degradation behavior of poly(lactic acid) (PLA), single-walled carbon nanotubes (CNTs) were introduced into PLA as nucleating agents. The degradation behavior of PLA-CNT nanocomposites was examined under accelerated weathering conditions with exposure to UV light, heat, and moisture. The degradation mechanism proceeded via the Norrish type II mechanism of carbonyl polyester. Differential scanning calorimetry (DSC) studies showed an increase in glass transition temperature, melting temperature, and crystallinity as a result of the degradation. However, pure PLA showed higher degradation as evidenced by increased crystallinity, lower onset decomposition temperature, embrittlement, and a higher number of micro-voids which became broader and deeper during degradation. In the PLA-CNT nanocomposites, CNTs created a tortuous pathway which inhibits the penetration of water molecules deeper into the polymer matrix, making PLA thermally stable by increasing the initial temperature of mass loss. CNTs appear to retard PLA degradation by impeding mass transfer. Our study will facilitate designing environmentally friendly packaging materials that display greater resistance to degradation in the presence of moisture and UV light.

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