scholarly journals Surface modification and thermal performance of a graphene oxide/novolac epoxy composite

RSC Advances ◽  
2018 ◽  
Vol 8 (37) ◽  
pp. 20505-20516 ◽  
Author(s):  
Shasha Li ◽  
Xi Liu ◽  
Changqing Fang ◽  
Nailiang Liu ◽  
Donghong Liu
Keyword(s):  
Surface Modification ◽  
Graphene Oxide ◽  
Thermal Performance ◽  
Epoxy Composite ◽  
Functionalized Graphene ◽  
Functionalized Graphene Oxide ◽  
Novolac Epoxy

Functionalized graphene oxide (GO) was successfully modified by grafting 1,3,5-triglycidylisocyanurate (TGIC) onto the surface of GO.

The effect of addition of functionalized graphene oxide on the dielectric properties of epoxy composite

2013 ◽  
Vol 39 (9) ◽  
pp. 798-800 ◽  
Author(s):  
V. E. Muradyan ◽  
A. A. Arbuzov ◽  
E. A. Sokolov ◽  
S. D. Babenko ◽  
G. V. Bondarenko
Keyword(s):  
Graphene Oxide ◽  
Dielectric Properties ◽  
Epoxy Composite ◽  
Functionalized Graphene ◽  
Functionalized Graphene Oxide

The correlated effects of polyetheramine-functionalized graphene oxide loading on the curing reaction and the mechanical properties of epoxy composites

2021 ◽  
pp. 095400832199675
Author(s):  
Junpeng Tian ◽  
Cheng Yang ◽  
Jiping Yang ◽  
Shuangqiang Shi ◽  
Sijia Hao
Keyword(s):  
Mechanical Properties ◽  
Graphene Oxide ◽  
Epoxy Composite ◽  
Flexural Modulus ◽  
Chemical Properties ◽  
Interfacial Structure ◽  
Epoxy Composites ◽  
Functionalized Graphene ◽  
Functionalized Graphene Oxide ◽  
Curing Reaction

In this study, the effects of polyetheramine (D230) functionalized graphene oxide loading on the curing reaction, thermal and mechanical properties of epoxy composites were studied and the correlation between structure and property of epoxy composite was established. In the functionalization of graphene oxide (GO), the effect of the mass ratio of D230 to GO on chemical properties of the functionalized GO was investigated. Results showed that D230 were successfully covalently grafted onto surface of two-dimensional functionalized GO sheet. The functionalized GO sheets prepared under optimal condition of D230/GO ratio of 1:1 dispersed evenly in epoxy composites, indicating the possibility of the epoxy composite fabrication by the solvent-free technique. The analysis of qualitative Cure Index suggested that epoxy composites were subjected to excellent curing. The quantitative evaluation of curing kinetics demonstrated that the functionalized GO exhibited a chemical facilitation on the curing reaction. However, the functionalized GO simultaneously physically restricted the curing reactivity, especially at high loading. These contributed to the improved interfacial properties and high toughness of the epoxy composites. Compared to neat epoxy, the epoxy composites showed effective tensile strength improvement of ∼10.0% (77.0 MPa), tensile modulus enhancement of ∼7.7% (3.34 GPa), flexural modulus increment of ∼12.1% (3.43 GPa), and flexural strength increment of ∼10.6% (124.3 MPa). This study demonstrated an effective and environment-friendly strategy to design GO reinforced epoxy composites with favorable dispersion and interfacial bonding, and it further clarified the relationship between the crosslinking network/interfacial structure and the mechanical properties of epoxy composites.

Polymer Functionalized Graphene Oxide: A Versatile Nanoplatform for Drug/Gene Delivery

2015 ◽  
Vol 19 (18) ◽  
pp. 1828-1837 ◽  
Author(s):  
George V. Theodosopoulos ◽  
Panayiotis Bilalis ◽  
Georgios Sakellariou
Keyword(s):  
Graphene Oxide ◽  
Gene Delivery ◽  
Functionalized Graphene ◽  
Functionalized Graphene Oxide
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