Available online at www.sciencedirect.com ScienceDirect Materials Today: Proceedings 16 (2019) 1611–1616 www.materialstoday.com/proceedings 2214-7853 © 2019 Elsevier Ltd. All rights reserved. Selection and/or Peer-review under responsibility of Biomedical and Advanced Materials (Biocam 2017). Bio-CAM 2017 Thermal properties of carboxymethyl cellulose (CMC) filled halloysite nanotube (HNT) bio-nanocomposite films Kathiravan Suppiah a *, Teh Pei Leng a , Salmah Husseinsyah a , Rozyanty Rahman a , Yeoh Cheow Keat a , CW Heng a a Universiti Malaysia Perlis, Division of Polymer Engineering, School of Materials Engineering, 02600 Jejawi, Perlis, Malaysia. Abstract This paper covered the effect of halloysite nanotube (HNT) content on thermal properties and moisture content of carboxymethyl cellulose (CMC)/halloysite nanotube (HNT) bio-nanocomposite films. The CMC/HNT bio-nanocomposite films were prepared by solvent casting method. The thermogravimetric analysis (TGA) shows that the addition of HNT nanofiller enhanced the thermal stability of CMC/HNT bio-nanocomposites. The results showed the thermal degradation temperature (T d1 and T d2 ) and residue remaining (char yields) at 800ºC increased with increasing HNT filler. This indicated the effective dispersion of HNT nanofiller in CMC matrix in bio-nanocomposites. Meanwhile, the moisture content of CMC/HNT bio-nanocomposite films decreased with increasing HNT content. © 2019 Elsevier Ltd. All rights reserved. Selection and/or Peer-review under responsibility of Biomedical and Advanced Materials (Biocam 2017). Keywords: Carboxymethyl cellulose, Halloysite nanotube, Bionanocomposite films, Thermal properties, TGA, DTG, Moisture content 1. Introduction Lately, the development of environmental friendly, degradable biopolymers has attracted extensive interest due to the reduced waste accumulation at the end of the life cycle compared to the petroleum-based synthetic polymers. Besides, the biocomposites consists of matrix material as biopolymer also believed to degrade the internal part of the composite by embedding with natural reinforcing fillers. Among the biopolymers, cellulose ether derivatives, in particular carboxymethyl cellulose (CMC) is a typical anionic linear polysaccharide and considered as a promising industrial polymer by possessing bundle of benefits. CMC is being widely used in various applications due to its unique characteristics such as biodegradability, biocompatibility, transparency, high viscosity, non-toxic and * Corresponding author. Tel.: +6-018-2704851; fax: +604-9798178. E-mail address: kathiravansuppiah@gmail.com