Nonisothermal crystallization kinetic studies on melt processed poly(ethylene terephthalate)/polylactic acid blends containing graphene oxide and exfoliated graphite nanoplatelets

2019 ◽  
Vol 136 (23) ◽  
pp. 47569 ◽  
Author(s):  
Seyed Mohammad Ali Jafari ◽  
Ramin Khajavi ◽  
Vahabodin Goodarzi ◽  
Mohammad R. Kalaee ◽  
Hossein A. Khonakdar
Keyword(s):  
Graphene Oxide ◽  
Ethylene Terephthalate ◽  
Crystallization Kinetic ◽  
Kinetic Studies ◽  
Exfoliated Graphite ◽  
Graphite Nanoplatelets ◽  
Nonisothermal Crystallization ◽  
Poly Ethylene Terephthalate ◽  
Exfoliated Graphite Nanoplatelets ◽  
Poly Ethylene

scholarly journals Oxygen Barrier Properties and Melt Crystallization Behavior of Poly(ethylene terephthalate)/Graphene Oxide Nanocomposites

2015 ◽  
Vol 2015 ◽  
pp. 1-10 ◽  
Author(s):  
Anna Szymczyk ◽  
Sandra Paszkiewicz ◽  
Iwona Pawelec ◽  
Sławomir Lisiecki ◽  
Marek Jotko ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Ethylene Terephthalate ◽  
Oxygen Permeability ◽  
Barrier Properties ◽  
Nanocomposite Films ◽  
Oxygen Barrier ◽  
Melt Crystallization ◽  
Nonisothermal Crystallization ◽  
Poly Ethylene Terephthalate ◽  
Poly Ethylene

Poly(ethylene terephthalate) nanocomposites with low loading (0.1–0.5 wt%) of graphene oxide (GO) have been prepared by usingin situpolymerization method. TEM study of nanocomposites morphology has shown uniform distribution of highly exfoliated graphene oxide nanoplatelets in PET matrix. Investigations of oxygen permeability of amorphous films of nanocomposites showed that the nanocomposites had better oxygen barrier properties than the neat PET. The improvement of oxygen permeability for PET nanocomposite films over the neat PET is approximately factors of 2–3.3. DSC study on the nonisothermal crystallization behaviors proves that GO acts as a nucleating agent to accelerate the crystallization of PET matrix. The evolution of the lamellar nanostructure of nanocomposite and neat PET was monitored by SAXS during nonisothermal crystallization from the melt. It was found that unfilled PET and nanocomposite with the highest concentration of GO (0.5 wt%) showed almost similar values of the long period (L=11.4 nm for neat PET andL=11.5 nm for PET/0.5GO).

One-step sonochemical synthesis of a graphene oxide–manganese oxide nanocomposite for catalytic glycolysis of poly(ethylene terephthalate)

Nanoscale ◽  
2012 ◽  
Vol 4 (13) ◽  
pp. 3879 ◽  
Author(s):  
Gle Park ◽  
Leian Bartolome ◽  
Kyoung G. Lee ◽  
Seok Jae Lee ◽  
Do Hyun Kim ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Manganese Oxide ◽  
Ethylene Terephthalate ◽  
Sonochemical Synthesis ◽  
Poly Ethylene Terephthalate ◽  
One Step ◽  
Poly Ethylene
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