Enhanced toughness and glass transition temperature of epoxy nanocomposites filled with solvent-free liquid-like nanocrystal-functionalized graphene oxide

2016 ◽  
Vol 89 ◽  
pp. 653-659 ◽  
Author(s):  
Peipei Li ◽  
Yaping Zheng ◽  
Mengzhi Li ◽  
Ting Shi ◽  
Dewang Li ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Glass Transition ◽  
Transition Temperature ◽  
Glass Transition Temperature ◽  
Solvent Free ◽  
Functionalized Graphene ◽  
Epoxy Nanocomposites ◽  
Functionalized Graphene Oxide

Enhancement of the crosslink density, glass transition temperature, and strength of epoxy resin by using functionalized graphene oxide co-curing agents

2016 ◽  
Vol 7 (1) ◽  
pp. 36-43 ◽  
Author(s):  
Jin Won Yu ◽  
Jin Jung ◽  
Yong-Mun Choi ◽  
Jae Hun Choi ◽  
Jaesang Yu ◽  
...  
Keyword(s):  
Tensile Strength ◽  
Graphene Oxide ◽  
Glass Transition ◽  
Transition Temperature ◽  
Glass Transition Temperature ◽  
Epoxy Resin ◽  
Crosslink Density ◽  
Functionalized Graphene ◽  
Functionalized Graphene Oxide ◽  
Curing Agents

Epoxy nanocomposites are fabricated by using diamine-functionalized GO and exhibit high Tg, tensile strength, and crosslink density.

Effect of reduced graphene oxide on mechanical behavior of an epoxy adhesive in glassy and rubbery states

2021 ◽  
pp. 002199832110316
Author(s):  
Ata Khabaz-Aghdam ◽  
Bashir Behjat ◽  
EAS Marques ◽  
RJC Carbas ◽  
Lucas FM da Silva ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Glass Transition ◽  
Transition Temperature ◽  
Glass Transition Temperature ◽  
Ambient Temperature ◽  
Mechanical Behavior ◽  
Reduced Graphene Oxide ◽  
Epoxy Adhesive ◽  
Ultimate Strain ◽  
Reduced Graphene

The mechanical behavior of an adhesive, in neat state and reinforced with up to 0.5 wt% of reduced graphene oxide (RGO) was investigated here. Tests were done at temperatures between the ambient temperature and the glass transition temperature ( Tg[Formula: see text] of the adhesive. Using a metal mold, cured plates of the neat and RGO reinforced epoxy adhesive were prepared. The adhesive powder and the bulk dumbbell-shaped specimens, obtained from cured adhesive plates, were subjected to differential scanning calorimetry (DSC) and tensile tests, respectively, to obtain the Tg as well as mechanical properties of the adhesives. The results indicated that adding RGO up to 0.5 wt% increased the glass transition temperature, the modulus of elasticity, and the strength of the adhesive. It was found that the presence of RGO reduced the adhesive’s strain at the break at the ambient temperature. However, at high temperatures, near the Tg, the ultimate strain of RGO-reinforced adhesives decreased slightly when compared to the ultimate strain of the neat specimens. This explains the reduction in toughness at ambient temperature obtained by adding RGO and the increase at high temperatures. Finally, the failure morphology of the neat and RGO-reinforced adhesive specimens was investigated using microscopic imaging of the specimens’ failure cross-sections, which supported and justified the experimental observations.

In situ preparation of functionalized graphene oxide/epoxy nanocomposites with effective reinforcements

2011 ◽  
Vol 21 (35) ◽  
pp. 13290 ◽  
Author(s):  
Chenlu Bao ◽  
Yuqiang Guo ◽  
Lei Song ◽  
Yongchun Kan ◽  
Xiaodong Qian ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Functionalized Graphene ◽  
Epoxy Nanocomposites ◽  
Functionalized Graphene Oxide ◽  
In Situ Preparation

Glass transition temperature of functionalized graphene–polymer composites

2013 ◽  
Vol 71 ◽  
pp. 66-71 ◽  
Author(s):  
Qingzhong Xue ◽  
Cheng Lv ◽  
Meixia Shan ◽  
Hongxin Zhang ◽  
Cuicui Ling ◽  
...  
Keyword(s):  
Glass Transition ◽  
Transition Temperature ◽  
Glass Transition Temperature ◽  
Polymer Composites ◽  
Functionalized Graphene

Octadecyl Amine Functionalized Graphene Oxide towards Hydrophobic Chemical Resistant Epoxy Nanocomposites

2018 ◽  
Vol 3 (25) ◽  
pp. 7200-7207 ◽  
Author(s):  
Seyyed Mojtaba Mousavi ◽  
Seyyed Alireza Hashemi ◽  
Mohammad Arjmand ◽  
Ali Mohammad Amani ◽  
Farbod Sharif ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Functionalized Graphene ◽  
Epoxy Nanocomposites ◽  
Functionalized Graphene Oxide ◽  
Amine Functionalized ◽  
Hydrophobic Chemical ◽  
Octadecyl Amine

scholarly journals Influence of reduced graphene oxide on flow behaviour, glass transition temperature and secondary crystallinity of plasticized poly(vinyl chloride)

RSC Advances ◽  
2020 ◽  
Vol 10 (49) ◽  
pp. 29247-29256 ◽  
Author(s):  
H. Akhina ◽  
Koduvayur A. Ramya ◽  
M. R. Gopinathan Nair ◽  
Allisson Saiter-Fourcin ◽  
Marie-Rose Garda ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Glass Transition ◽  
Transition Temperature ◽  
Glass Transition Temperature ◽  
Reduced Graphene Oxide ◽  
Vinyl Chloride ◽  
Rheological Behaviour ◽  
Flow Behaviour ◽  
Poly Vinyl Chloride ◽  
Reduced Graphene

Understanding the rheological behaviour of thermoplastic nanocomposites is important to obtain a concrete knowledge of their processability.

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