Ambient temperature sulfonated carbon fiber reinforced PEEK with hydroxyapatite and reduced graphene oxide hydroxyapatite composite coating

2021 ◽  
Author(s):  
Naomi Addai Asante ◽  
Youfa Wang ◽  
Shahd Bakhet ◽  
Shefiu Kareem ◽  
Kwadwo Asare Owusu ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Carbon Fiber ◽  
Ambient Temperature ◽  
Reduced Graphene Oxide ◽  
Composite Coating ◽  
Fiber Reinforced ◽  
Reduced Graphene ◽  
Hydroxyapatite Composite ◽  
Carbon Fiber Reinforced

scholarly journals An experimental study of De-Icing property using Reduced Graphene Oxide - Boron Nitride Nano Powder in CFRP

2021 ◽  
Vol 2070 (1) ◽  
pp. 012152
Author(s):  
A Akash Raja ◽  
M S Nisha ◽  
J Jatin ◽  
Joseph Noel Kiren
Keyword(s):  
Graphene Oxide ◽  
Carbon Fiber ◽  
Boron Nitride ◽  
Fiber Reinforced Polymer ◽  
Carbon Fiber Reinforced Polymer ◽  
Fiber Reinforced ◽  
Nano Powder ◽  
Reinforced Polymer ◽  
Reduced Graphene ◽  
Carbon Fiber Reinforced

Abstract Icing is one of the critical factors that affects the flight of the aircraft in ways of drag. In this study, the rate of de-icing was experimented with the composite material using Boron Nitride Nano Powder (BNNP) and Reduced Graphene Oxide (rGO). Boron Nitride are highly thermal conductive and lesser toxic, and Graphene allows to be a good conductor of heat and electricity and thereby, these nanomaterials are used as a filler for de-icing application. The filler is mixed in Epoxy Resin using ultrasonicator. In order to get better specimen surface of composite, ultrasonic mixing method is used instead of hand-mixing. To fabricate Carbon Fiber Reinforced Polymer (CFRP) Hand Lay-up Method is carried out. The material characterization is done by X-ray Diffraction (XRD), and Scanning Electron Microscope (SEM). Mechanical properties are studied with Dynamic Mechanical Analysis (DMA), Thermo-Gravimetric Analysis (TGA), and Water Droplet test. Moreover, the Carbon Fiber Reinforced Polymer surface shows extraordinary de-icing effect contrasted with the non-functionalized surface. This study has proved that the de-icing property is very much effective with Carbon Fiber Reinforced Polymer where Graphene and Boron Nitride as the filler.

Direct growth of thermally reduced graphene oxide on carbon fiber for enhanced mechanical strength

2020 ◽  
Vol 193 ◽  
pp. 108010
Author(s):  
Beom-Gon Cho ◽  
Shalik Ram Joshi ◽  
Jaekyo Lee ◽  
Young-Bin Park ◽  
Gun-Ho Kim
Keyword(s):  
Graphene Oxide ◽  
Carbon Fiber ◽  
Mechanical Strength ◽  
Reduced Graphene Oxide ◽  
Reduced Graphene ◽  
Direct Growth

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.

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 Real-time monitored photocatalytic activity and electrochemical performance of an rGO/Pt nanocomposite synthesized via a green approach

RSC Advances ◽  
2020 ◽  
Vol 10 (23) ◽  
pp. 13722-13731 ◽  
Author(s):  
Satish Kasturi ◽  
Sri Ramulu Torati ◽  
Yun Ji Eom ◽  
Syafiq Ahmad ◽  
Byong-June Lee ◽  
...  
Keyword(s):  
Methylene Blue ◽  
Photocatalytic Activity ◽  
Graphene Oxide ◽  
Electrochemical Performance ◽  
Ambient Temperature ◽  
Real Time ◽  
Reduced Graphene Oxide ◽  
Organic Pollutant ◽  
Green Approach ◽  
Reduced Graphene

Herein, we have reported the real-time photodegradation of methylene blue, an organic pollutant, in the presence of sunlight at an ambient temperature using a platinum-decorated reduced graphene oxide (rGO/Pt) nanocomposite.

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