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Coir pith/nylon/epoxy hybrid composites and their thermal properties: Thermogravimetric analysis, thermal ageing, and heat deflection temperature
Author(s) -
Narendar Raguramsingh,
Priya Dasan Keereyadath,
Rajendran Kuppachari
Publication year - 2018
Publication title -
journal of vinyl and additive technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.295
H-Index - 35
eISSN - 1548-0585
pISSN - 1083-5601
DOI - 10.1002/vnl.21594
Subject(s) - materials science , composite material , thermogravimetric analysis , coir , thermal stability , pith , epoxy , sodium hydroxide , compression molding , heat deflection temperature , composite number , ultimate tensile strength , izod impact strength test , chemistry , mold , botany , organic chemistry , biology
Thermal stability of composites and their constituents becomes an important criterion during their processing and application in different fields. The present work deals with the thermal stability of coir pith/nylon/epoxy hybrid composites by studying the thermogram, heat deflection temperature, and accelerated ageing of these composites. The effect of chemical treatment of coir pith and hybridization on these properties is dealt in detail in the discussion. The composite samples were prepared by hand layup method followed and by compression molding. Coir pith was subjected to different types of chemical treatments—sodium hydroxide, dicumyl peroxide, acrylic acid, acetic acid, sodium hypochlorite, and sulfuric acid before processing. Thermogravimetric analysis of composite samples showed improved thermal stability with treatment of coir pith and hybridization with nylon fabric. The effect of temperature on the ageing of composites was studied after an accelerated ageing process followed by a comparison of retention in impact strength. The thermogram of the samples was found to complement the results obtained in accelerated ageing and heat deflection analysis. J. VINYL ADDIT. TECHNOL., 24:297–303, 2018. © 2017 Society of Plastics Engineers