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Factors affecting barrier performance of composite anti-corrosion coatings prepared by using electrochemically exfoliated few-layer graphene as filler

The electro-exfoliated few-layer graphene (FLG) sheet and epoxy composite systems were studied as model composite coatings. Increasing the loading up to 1?wt% increased the corrosion resistance of the coating by ?20 times, hardness by 30%, elastic modulus by 35% as compared to neat epoxy coating. At a fixed FLG loading, the above mentioned parameters strongly varied with the homogenization time. The mean ‘agglomerates’ size of FLG in the composite coating decreased from 17.4??m to 10.6??m for increasing the homogenization from 10 to 60?min. Correspondingly, mechanical properties of the composite coatings decreased and anticorrosion property increased.

» Author: Sneha Daradmare, Sunny Raj, Arup R. Bhattacharyya, Smrutiranjan Parida

» Reference: 10.1016/j.compositesb.2018.08.023

» Publication Date: 08/08/2018

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This project has received funding from the European Union Seventh Framework Programme (FP7/2007-2013) under grant agreement n° [609149].

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