Dynamic Mechanical Thermal Analysis of Wood Polymer Composite Endurance to Prolonged Ultra Violet Irradiation Exposure

 
 
 
  • Abstract
  • Keywords
  • References
  • PDF
  • Abstract


    This study was constructed to examine the viscoelastic properties and the microstructure of wood-plastic composites (WPCs) before and after being subjected to UV irradiation. The pellet of the wood polymer composites consists of polypropylene as the matrix and rice-husk flour as the reinforcing filler. The samples were UV irradiated from 5000 hours to 20,000 hours with the increment of 5000 hours to study the effect of weathering on the viscoelastic properties of the WPCs. The microstructures of the surface of the samples were examined using Optical Microscopy (OM). The mechanical properties of WPCs through dynamic mechanical analysis test were assessed for both polyvinyl chloride (PVC) and polypropylene (PP) samples. The value of storage modulus (E’) decreases when been exposed in the ultra violet irradiation, in both glassy and rubbery states. Moreover, the density of the WPC samples is closed to light weight and result is comparable. As for morphological properties test, the surface of cracked, voids appeared at the surface of the WPC samples of both PVC and PP interface and the density of composite decreased.

     

     

  • Keywords


    Wood polymer composites; dynamic mechanical analysis; rice husk; ultra-violet; weathering; polyvinyl chloride; polypropylene.

  • References


      [1] Anuar, H., & Ahmad, Z. (2011). Thermal properties of injection moulded polylactic acid – Kenaf fibre biocomposite. Malaysian Polymer Journal, 6(1), 51–57.

      [2] Arjmandi, R., Hassan, A., Majeed, K., & Zakaria, Z. (2015). Rice husk filled polymer composites. International Journal of Polymer Science, 2015, 1-32.

      [3] Bakar, N. A., Chee, C. Y., Abdullah, L. C., Ratnam, C. T., & Ibrahim, N. A. (2015). Thermal and dynamic mechanical properties of grafted kenaf filled poly (vinyl chloride)/ethylene vinyl acetate composites. Materials and Design, 65, 204–211.

      [4] Beyler, C. L., & Hirschler, M. M. (2001). Thermal decomposition of polymers. In M. J. Hurley, D. T. Gottuk, J. R. Hall Jr., K. Harada, E. D. Kuligowski, M. Puchovsky, J. L. Torero, J. M. Watts Jr., & C. J. Wieczorek, (Eds.), SPE Handbook of Fire Protection Engineering. Berlin: Springer Verlag, pp. 110–131.

      [5] Bourne, P. J. (2007). Evaluation of rice hulls as a lignocellulosic substitute in wood plastic composites. Inquiry: The University of Arkansas Undergraduate Research Journal, 7(2), 66–72.

      [6] Carlsson, K. (2007). Light microscopy. Stockholm: KTH Physics.

      [7] Chen, R. S., Ab Ghani, M. H., Salleh, M. N., Ahmad, S., & Tarawneh, M. A. (2015). Mechanical, water absorption, and morphology of recycled polymer blend rice husk flour biocomposites. Journal of Applied Polymer Science, 132(8), 1–12.

      [8] Chuah, T. G., Jumasiah, A., Azni, I., Katayon, S., & Thomas Choong, S. Y. (2005). Rice husk as a potentially low-cost biosorbent for heavy metal and dye removal: An overview. Desalination, 175(3), 305–316.

      [9] Dez-Gutirrez, S., Rodrguez-Prez, M. A., De Saja, J. A., & Velasco, J. I. (1999). Dynamic mechanical analysis of injection-moulded discs of polypropylene and untreated and silane-treated talc-filled polypropylene composites. Polymer, 40(19), 5345–5353.

      [10] Dukarska, D., Czarnecki, R., Dziurka, D., & Mirski, R. (2017). Construction particleboards made from rapeseed straw glued with hybrid pMDI / PF resin. European Journal of Wood and Wood Products, 75(2), 175–184.

      [11] Gardner, D. J., Han, Y., & Wang, L. (2015). Wood–plastic composite technology. Current Forestry Reports, 1(3), 139–150.

      [12] Göpferich, A. (1996). Mechanisms of polymer degradation and erosion. Biomaterials, 17(2), 103–114.

      [13] Jais, F. H. M., Omar, N. A. A., & Rus, A. Z. M. (2016). Photostability characterization of wood polymer composites of polyvinyl chloride and rice husk to ultra-violet irradiation exposure. MATEC Web of Conferences, 78, 1-5.

      [14] Kamweru, P. K., Ndiritu, F. G., Kinyanjui, T., Muthui, Z. W., & Gichuki, R. (2014). UV Absorption and dynamic mechanical analysis of polyethylene films. International Journal of Physical Sciences, 9(24), 545–555.

      [15] Maddah, H. A. (2016). Polypropylene as a promising plastic: A review. American Journal of Polymer Science, 6(1), 1–11.


 

View

Download

Article ID: 26908
 
DOI: 10.14419/ijet.v7i4.34.26908




Copyright © 2012-2015 Science Publishing Corporation Inc. All rights reserved.