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Mechanical and barrier properties of epoxy polymer filled with nanolayered silicate clay particles

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Abstract

The diglycidyl ether of bisphenol A (DGEBA) epoxy resin system filled with organo clay (OC) and unmodified clay (UC) were processed separately by two different curing agents. Triethylene tetramine (TETA) and Diaminodiphenyl methane (DDM) hardeners were used as curing agents. The nanocomposites were processed by shear mixing at different clay concentrations (1, 2, 3,5 and 10 wt%). The OC and UC were characterized by x-ray diffraction (XRD) technique. The morphology of the nanocomposites was obtained by XRD and Transmission Electron Microscopy (TEM). Bending and Impact tests conducted on these materials revealed that the organo clay filled epoxy resin showed good improvement in property over unmodified clay filled epoxy composites. The mass uptake of the nanocomposites was studied in the acid, base and water mediums. It is observed that the mass uptake in the acid medium is higher than in other mediums. The equilibrium mass uptake in all the mediums for nanocomposites was found to be lower compared to neat epoxy polymer system.

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Authors and Affiliations

  1. Composites Technology Centre, Indian Institute of Technology Madras, Chennai, 600 036, India

    T. P. Mohan, M. Ramesh Kumar & R. Velmurugan

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  1. T. P. Mohan
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  2. M. Ramesh Kumar
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  3. R. Velmurugan
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Correspondence to R. Velmurugan.

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Mohan, T.P., Kumar, M.R. & Velmurugan, R. Mechanical and barrier properties of epoxy polymer filled with nanolayered silicate clay particles. J Mater Sci 41, 2929–2937 (2006). https://doi.org/10.1007/s10853-006-5164-4

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  • DOI: https://doi.org/10.1007/s10853-006-5164-4

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