Functionalized graphene nanoplatelets/poly (lactic acid)/chitosan nanocomposites: Mechanical, biodegradability, and electrical conductivity properties

2021 ◽  
Author(s):  
Azin Paydayesh ◽  
Seyed Rasoul Mousavi ◽  
Sara Estaji ◽  
Hossein Ali Khonakdar ◽  
Mohammad Amin Nozarinya
Keyword(s):  
Electrical Conductivity ◽  
Lactic Acid ◽  
Graphene Nanoplatelets ◽  
Poly Lactic Acid ◽  
Functionalized Graphene

Graphene nanoplatelets as poly(lactic acid) modifier: linear rheological behavior and electrical conductivity

2013 ◽  
Vol 1 (28) ◽  
pp. 8253 ◽  
Author(s):  
Mohammad Sabzi ◽  
Long Jiang ◽  
Fei Liu ◽  
Ismail Ghasemi ◽  
Mohammad Atai
Keyword(s):  
Electrical Conductivity ◽  
Lactic Acid ◽  
Rheological Behavior ◽  
Graphene Nanoplatelets ◽  
Poly Lactic Acid

scholarly journals Effect of combining cellulose nanocrystals and graphene nanoplatelets on the properties of poly(lactic acid) based films

2018 ◽  
Vol 12 (6) ◽  
pp. 543-555 ◽  
Author(s):  
S. Montes ◽  
A. Etxeberria ◽  
V. Mocholi ◽  
A. Rekondo ◽  
H. Grande ◽  
...  
Keyword(s):  
Lactic Acid ◽  
Cellulose Nanocrystals ◽  
Graphene Nanoplatelets ◽  
Poly Lactic Acid

Preparation and Characterization of Micro-Graphite Filled Poly(Lactic Acid) Composites: Part 1 - Rheological and Thermal Properties

2020 ◽  
Vol 981 ◽  
pp. 138-143
Author(s):  
Esa N. Shohih ◽  
Mujtahid Kaavessina ◽  
Henry A. S. Lomi ◽  
Betha P. Pratiwi ◽  
Sperisa Distantina ◽  
...  
Keyword(s):  
Electrical Conductivity ◽  
Lactic Acid ◽  
Thermal Properties ◽  
Conductive Polymer ◽  
Complex Viscosity ◽  
Poly Lactic Acid ◽  
Homogeneous Distribution ◽  
Mechanical And Thermal Properties ◽  
Blending Method ◽  
Stirring Time

Conductive polymer composites (CPCs) have attracted great attention of researchers due to their enhanced properties such as an adjustable electrical conductivity, good processability, good mechanical and thermal properties, etc. CPCs had many potencies for wider application in electronic devices. Poly (lactic acid) or PLA is one of the interesting polymers used in the developing of these new important materials. PLA properties are comparable to the synthetic petroleum-based polymers such as polyethylene terephthalate (PET), polypropylene (PP), etc. This research focuses on studying the rheological and thermal properties of PLA/micro-graphite as a conductive polymer composite which adjustable its electrical conductivity. In this study, the PLA/micro-graphite was prepared through solvent blending method using chloroform. The micro-graphite composition was varied from 0%, 5%, and 10 % (w/w) with different stirring time (30 and 60 minutes) and then, poured in glass mould. In the melt rheology study, the frequency sweep test showed that the complex viscosity (|η*|) of the bio-composite increased with the micro-graphite loading. The same tendency was also found in thermal property and stability. The melting temperature and thermal degradation were slightly increasing. The crystallinity of PLA was influenced by the presence of micro-graphite. In this solvent blending method, the homogeneous distribution of micro-graphite in the bio-composite required at least 60 minutes (stirred at 650 rpm and 60 °C).

Polyethylene glycol functionalized graphene oxide and its influences on properties of Poly(lactic acid) biohybrid materials

2019 ◽  
Vol 161 ◽  
pp. 651-658 ◽  
Author(s):  
Nguyen Dang Mao ◽  
Hun Jeong ◽  
Thi Kim Ngan Nguyen ◽  
Thi Mai Loan Nguyen ◽  
Thi Vi Vi Do ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Lactic Acid ◽  
Polyethylene Glycol ◽  
Poly Lactic Acid ◽  
Functionalized Graphene ◽  
Functionalized Graphene Oxide

Formation the Polypyrrole / Chitosan / Polylactic Acid Microencapsules

2014 ◽  
Vol 881-883 ◽  
pp. 83-86 ◽  
Author(s):  
Hong Ye ◽  
Ying Liu ◽  
Xiang Hong Peng ◽  
Kun Wan ◽  
Feng Chen
Keyword(s):  
Electrical Conductivity ◽  
Acetic Acid ◽  
Lactic Acid ◽  
Polylactic Acid ◽  
Smooth Surface ◽  
Poly Lactic Acid ◽  
Spray Dried

The emulsion of chitosan in acetic acid aqueous and poly lactic acid in chloroform was spray-dried to obtain the chitosan/poly lactic acid microencapsules (CS-PLA). The polypyrrole / chitosan/ polylactic acid microencapsules were prepared by polymerization pyrrole on CS-PLA. The structures and the morphologies of microencapsules were characterized by FTIR, SEM, TGA and four probes technique. The results showed that multilayer polypyrrole were formation on the surface of CS-PLA microencapsules, the microencapsules had 3.0-8.0 μm diameters with smooth surface, and the electrical conductivity value was 1.03×10-3 S/cm.

scholarly journals Biocompatible reinforcement of poly(Lactic acid) with graphene nanoplatelets

2016 ◽  
Vol 39 ◽  
pp. E308-E320 ◽  
Author(s):  
Carolina Gonçalves ◽  
Artur Pinto ◽  
Ana Vera Machado ◽  
Joaquim Moreira ◽  
Inês C. Gonçalves ◽  
...  
Keyword(s):  
Lactic Acid ◽  
Graphene Nanoplatelets ◽  
Poly Lactic Acid
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