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Characterization of Untreated and Acid Treated Natural Filler from L. Oryza Sativa

  • Iqmal Che Hanah
  • Mohd Lias KamalEmail author
  • Noor Aishatun Majid
  • Wahida Abdul Rahman
  • Sharifah Nafisah Syed Ismail
  • Nor Mazlina Abdul Wahab
  • Nur Fairuz Wahida Ibrahim
  • Noor Faezah Mohd Sani
  • Siti Nur Liyana Mamauod
Conference paper
  • 12 Downloads

Abstract

Natural filler has been proved as potential ingredient that can replace the existing synthetic filler in polymer industry. Among the main intent of using this filler is that it can promote better cost saving and safe for human and environment. However, it also offered the hydrophilicity property and existence impurities that coated around the main filler component. Thus, it is important to ensure an appropriate treatment for better performance of natural filler as a potent filler. The effect of acid treatment on L. Oryza sativa (Rice Husk, RH) as natural filler was investigated in this study. Through this investigation, hydrochloric acid (HCl) was used to hydrolyse the organic substance including cellulose and expose more hydroxyl (–OH) groups on RH surface. The treated and untreated RH were characterized using Attenuated Total Reflectance Fourier Transform Infrared (ATR-FTIR), Thermogravimetry Analysis (TGA) and Scanning Electron Microscopy (SEM). The ATR-FTIR spectra of RH showed higher intensity of –OH groups due to the acid that reduce intermolecular hydrogen bonding. In addition, the SEM image showed rougher surface with more pores presence on the treated compared to untreated RH. Meanwhile, in TGA analysis, it can be seen that treated RH possess higher thermal stability compared to untreated RH. Apart from that, a significant mass change can be observed from the treated RH where it is reduced from 60.22% to 55.51%; which indicated that few materials in this natural filler have been partly removed from/during the acid treatment process. As noted that acid treated RH became as ‘cleaned surfaces material’ that able to enhance the efficacy filler-polymer matrix bonding, thus, possibly can cause on the enhancement of polymer composites performance.

Keywords

L. oryza sativa Acid treatment Natural filler Intermolecular hydrogen bonding Thermal stability 

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Copyright information

© Springer Nature Singapore Pte Ltd. 2020

Authors and Affiliations

  • Iqmal Che Hanah
    • 1
  • Mohd Lias Kamal
    • 1
    Email author
  • Noor Aishatun Majid
    • 1
  • Wahida Abdul Rahman
    • 1
  • Sharifah Nafisah Syed Ismail
    • 1
  • Nor Mazlina Abdul Wahab
    • 1
  • Nur Fairuz Wahida Ibrahim
    • 1
  • Noor Faezah Mohd Sani
    • 2
  • Siti Nur Liyana Mamauod
    • 3
  1. 1.Faculty of Applied SciencesUniversiti Teknologi MARA Cawangan PerlisArauMalaysia
  2. 2.Faculty of Applied SciencesUniversiti Teknologi MARA Cawangan Perak Kampus TapahTapah RoadMalaysia
  3. 3.Centre of Polymer Composites Research & Technology (PoCReST), Institute of Science (IOS)Universiti Teknologi MARA Shah AlamShah AlamMalaysia

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