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MADAKBAŞ, SEYFULLAH

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Author: ÇAKMAKÇI, EMRAH × Subject: h-BN ×

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    Preparation and Characterization of Polyaniline/Hexagonal Boron Nitride Composites
    (WALTER DE GRUYTER GMBH, 2013) ÇAKMAKÇI, EMRAH; Cakmakci, Emrah; Madakbas, Seyfullah
    Polyaniline (PANI) is one of the most studied conductive polymer with several unique properties and good conductivity. In this study it was aimed to prepare Polyaniline (PANI)/Hexagonal boron nitride (h-BN) composites. Chemical structures of the composites were characterized by FTIR analysis. Thermal properties of these novel composites were analyzed by TGA and DSC measurements. Glass transition temperatures and char yields of the composites increased with increasing h-BN percentage. FTIR, XRD and UV measurements indicated that the boron atoms in h-BN particles interact with the unpaired electrons in nitrogen atoms of PANI. Dielectric measurements revealed dipolar polarization behavior of the composites.
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    Preparation and thermal properties of polyacrylonitrile/hexagonal boron nitride composites
    (ELSEVIER SCIENCE BV, 2013) ÇAKMAKÇI, EMRAH; Madakbas, Seyfullah; Cakmakci, Emrah; Kahraman, Memet Vezir
    Polyacrylonitrile is a thermoplastic polymer with unique properties and it has several uses. However its flammability is a major drawback for certain applications. In this study it was aimed to prepare polyacrylonitrile (PAN)/hexagonal boron nitride (h-BN) composites with improved flame retardancy and thermal stability. Chemical structures of the composites were characterized by FTIR analysis. Thermal properties of these novel composites were analysed by TGA and DSC measurements. Glass transition temperatures and char yields increased with increasing h-BN percentage. Flame retardancy of the PAN composite materials improved with the addition of h-BN and the LOI value reached to 27% from 18%. Furthermore, the surface morphology of the composites was investigated by SEM analysis. (c) 2012 Elsevier B.V. All rights reserved.