Epoxy composites coating with Fe3O4 decorated graphene oxide: Modified bio-inspired surface chemistry, synergistic effect and improved anti-corrosion performance

2018 ◽  
Vol 436 ◽  
pp. 756-767 ◽  
Author(s):  
Yingqing Zhan ◽  
Jieming Zhang ◽  
Xinyi Wan ◽  
Zhihang Long ◽  
Shuangjiang He ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Synergistic Effect ◽  
Surface Chemistry ◽  
Epoxy Composites ◽  
Corrosion Performance

scholarly journals Synergistic effect of hybrid graphene oxide-aluminum dihydric tripolyphosphate in epoxy-based anticorrosive coatings

2020 ◽  
Author(s):  
Weiqiang Song ◽  
Xiaohua Liu ◽  
Qingsong Zhu ◽  
Yuxiang Zhang
Keyword(s):  
Graphene Oxide ◽  
Synergistic Effect ◽  
Electrochemical Impedance ◽  
Chemical Interaction ◽  
Synergetic Effect ◽  
Corrosion Performance ◽  
Chemical Coupling ◽  
Ft Ir ◽  
Inhibition Performance ◽  
Coupling Treatment

ADTP-GO hybrid was prepared from multi-layered aluminum dihydric tripolyphosphate (ADTP) and flake-shaped graphene oxide (GO) by a coupling method using (3-aminopropyl) triethoxysilane (ASi) as the coupling agent. Characterization analyses of the hybrid were performed by FT-IR, XRD and SEM. The effect of incorporating 2wt% ADTP-GO hybrid on corrosion inhibition performance of epoxy coating was evaluated in 3.5wt.% NaCl aqueous solution by using Tafel and electrochemical impedance spectroscopy (EIS) analysis. For comparison, the effects of ADTP and GO, alone and in combination without coupling treatment were also evaluated. FT-IR and XRD showed the presence of the chemical interaction between ADTP and GO in ADTP-GO hybrid. SEM indicated that GO was spread on the surface of ADTP layers in the hybrid. Tafel and EIS data indicated that the hybrid displayed an anti-corrosion performance superior to ADTP/GO blend without coupling treatment. The superiority was attributed to the stronger synergetic effect of ADTP and GO in ADTP-GO hybrid than in ADTP/GO blend. Additionally, epoxy/ADTP/GO coating was better than pure epoxy, epoxy/ADTP, and epoxy/GO coatings in the anti-corrosion performance on mild steel. It seems that the combination of ADTP and GO produced synergistic effect, and the synergistic effect was more obvious after chemical coupling.

scholarly journals Synergistic effect of functionalized graphene oxide and carbon nanotube hybrids on mechanical properties of epoxy composites

RSC Advances ◽  
2018 ◽  
Vol 8 (67) ◽  
pp. 38689-38700 ◽  
Author(s):  
Zehao Qi ◽  
Yefa Tan ◽  
Zhongwei Zhang ◽  
Li Gao ◽  
Cuiping Zhang ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Graphene Oxide ◽  
Carbon Nanotube ◽  
Synergistic Effect ◽  
3D Structure ◽  
Epoxy Composites ◽  
Functionalized Graphene ◽  
Functionalized Graphene Oxide

The 3D structure hybrids obtained by combining CNT and epoxy functionalized GO exhibit an obvious synergistic effect on the improvement of mechanical properties of epoxy composites.

scholarly journals Enhanced flexural properties of aramid fiber/epoxy composites by graphene oxide

2019 ◽  
Vol 8 (1) ◽  
pp. 484-492 ◽  
Author(s):  
Yinqiu Wu ◽  
Bolin Tang ◽  
Kun Liu ◽  
Xiaoling Zeng ◽  
Jingjing Lu ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Flexural Strength ◽  
Interfacial Shear Strength ◽  
Flexural Modulus ◽  
Weight Fraction ◽  
Interfacial Shear ◽  
Aramid Fiber ◽  
Epoxy Composites ◽  
Flexural Properties ◽  
Pure Epoxy

Abstract The reinforcing effect of graphene oxide (GO) in enhancing the flexural strength and flexural modulus of aramid fiber (AF)/epoxy composites were investigated with GO-AFs at a weight fraction of 0.1-0.7%. The flexural strength and flexural modulus of the composite reached 87.16 MPa and 1054.7 MPa, respectively, which were about 21.19% and 40.86% higher than those of the pure epoxy resin, respectively. In addition, the flexural properties and interfacial shear strength (IFSS) of composite reinforced by GO-AFs were much higher than the composites reinforced by AFs due to GO improved the interfacial bonding between the reinforcement material and matrix.

scholarly journals Boron nitride nanoplatelets as two-dimensional thermal fillers in epoxy composites: new scenarios at very low filler loadings

2020 ◽  
Vol 40 (10) ◽  
pp. 859-867
Author(s):  
Yao Shi ◽  
Genlian Lin ◽  
Xi-Fei Ma ◽  
Xiao Huang ◽  
Jing Zhao ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Boron Nitride ◽  
Filler Content ◽  
Hexagonal Boron Nitride ◽  
Filler Loading ◽  
Epoxy Composites ◽  
General Phenomenon ◽  
Sudden Drop ◽  
Reduced Graphene ◽  
Thermal Conducting

AbstractHexagonal boron nitride (h-BN) nanoplatelets (0.6 μm in diameter and 100 nm in thickness) are introduced into epoxy resin to improve the polymer’s thermal conducting ability. As expected, the thermal conductivities (TCs) of the composites, especially the in-plane TCs, are significantly increased. The in-plane TC of the epoxy composites can reach 1.67 W/mK at only 0.53 wt% loading, indicating h-BN nanopletelets are very effective thermal fillers. However, after carefully studied the correlation of the TC improvement and filler content, a sudden drop of the TC around 0.53 wt% filler loading is observed. Such an unexpected decrease in TC has never been reported and is also found to be consistent with the Tg changes versus filler content. Similar trend is also observed in other 2-D nanofillers, such as graphene oxide, reduced graphene oxide, which may indicate it is a general phenomenon for 2-D nanofillers. SEM results suggest that such sudden drop in TC might be coming from the enrichment of these 2-D nanofillers in localized areas due to their tendency to form more ordered phase above certain concentrations.

Graphene oxide modified carbon fiber reinforced epoxy composites

2020 ◽  
Vol 40 (5) ◽  
pp. 415-420 ◽  
Author(s):  
Yasin Altin ◽  
Hazal Yilmaz ◽  
Omer Faruk Unsal ◽  
Ayse Celik Bedeloglu
Keyword(s):  
Graphene Oxide ◽  
Carbon Fiber ◽  
Carbon Fibers ◽  
Spray Coating ◽  
Sem Analysis ◽  
Epoxy Composites ◽  
Matrix Composites ◽  
Fiber Reinforced ◽  
Quick Method ◽  
Carbon Fiber Reinforced

AbstractThe interfacial interaction between the fiber and matrix is the most important factor which influences the performance of the carbon fiber-epoxy composites. In this study, the graphitic surface of the carbon fibers was modified with graphene oxide nanomaterials by using a spray coating technique which is an easy, cheap, and quick method. The carbon fiber-reinforced epoxy matrix composites were prepared by hand layup technique using neat carbon fibers and 0.5, 1 and 2% by weight graphene oxide (GO) modified carbon fibers. As a result of SEM analysis, it was observed that GO particles were homogeneously coated on the surface of the carbon fibers. Furthermore, Young's modulus increased from 35.14 to 43.40 GPa, tensile strength increased from 436 to 672 MPa, and the elongation at break was maintained around 2% even in only 2% GO addition.

scholarly journals Mechanical properties of graphene oxide (GO)/epoxy composites

HBRC Journal ◽  
2015 ◽  
Vol 11 (2) ◽  
pp. 151-156 ◽  
Author(s):  
Shivan Ismael Abdullah ◽  
M.N.M. Ansari
Keyword(s):  
Mechanical Properties ◽  
Graphene Oxide ◽  
Epoxy Composites
Sign in / Sign up

Export Citation Format

Share Document