Preparation and Characterization of Chemically Modified Wood Flour Reinforced Phenol-formaldehyde Composites

  • Nam, Byeong-Uk (School of Energy, Material & Chemical Engineering, Korea University of Technology and Education) ;
  • Mun, Jun-Yeong (School of Energy, Material & Chemical Engineering, Korea University of Technology and Education)
  • Received : 2018.02.02
  • Accepted : 2018.03.21
  • Published : 2018.03.31

Abstract

Wood Polymer Composites(WPC) have attracted significant attention because of ecological and environmental concerns. However, the structure of Wood Flour containing many hydroxyl groups(-OH) reduces the interface adhesion to Phenol-formaldehyde(PF) and it decreases the mechanical properties of the PF/Wood Flour Composites. The present work involves the modification of Wood Flour using silanes reinforced with Phenol-formaldehyde to enhance the mechanical properties of the composites. The spectroscopic properties of the composites were analyzed using FT-IR, XPS(X-ray Photoelectron Spectroscopy) and the mechanical properties i.e., tensile strength, flexural strength and impact strength were studied. We confirmed the modification effect of silanes by spectroscopic analysis, and the mechanical properties of the composites using wood flour modified by silanes were significantly improved.

Keywords

References

  1. L. M. Matuana, J. J. Balatinecz, C. B. Park, R. N. S. Sodhi, "X-ray Photoelectron spectroscopy study of silane-treated newsprint-fibers", Wood Science and Technology, 33, 259-270, 1999. https://doi.org/10.1007/s002260050114
  2. R.K. Sood, S. Krishnamoorthy, B. L. Khandelwal, "The effect of silane coupling agent and microfiller on the strength of phenol-formaldehyde resin concrete", The International Journal of Cement Composites and Lightweight Concrete, Vol. 6, No. 2, 1984.
  3. A.Pawlak, M. Mucha, "Thermogravimetric and FTIR studies of chitosan blends", Thermochimica Acta, Vol. 396, pp. 153-166, 2003. https://doi.org/10.1016/S0040-6031(02)00523-3
  4. L. M. Matuana, J. J. Balatinecz, R. N. S. Sodhi, C. B. Park, "Surface characterization of esterified cellulosic fibers by XPS and FTIR Spectroscopy", Wood Sciences and Technology, Vol. 35, pp. 191-201, 2001. https://doi.org/10.1007/s002260100097
  5. Hisayuki Nakatani, Keisuke Iwakura, Kensuke Miyazaki, Noriyasu Okazaki, Minoru Terano, "Effect of Chemical Structure of Silane Coupling Agent on Interface Adhesion Properties of Syndiotactic Polypropylene/Cellulose Composite", Journal of Applied PolymerScience, Vol. 119, pp. 1732-1741, 2011. https://doi.org/10.1002/app.32873
  6. A. H. Taghvaei, H. Shokrollahi, A. Ebrahimi, K. Janghorban, "Soft magnetic composites of iron-phenolic and the influence of silane coupling agent on the magnetic properties, Materials Chemistry and Physics, Vol. 116, pp. 247-253, 2009. https://doi.org/10.1016/j.matchemphys.2009.03.023
  7. Lu Fang, Liang Chang, Wen-jing Guo, Yongping Chen, Zheng Wang, "Influence of silane surface modification of veneer on interfacial adhesion of wood-plastic plywood", Applied Surface Science, Vol. 288, pp. 682-689, 2014. https://doi.org/10.1016/j.apsusc.2013.10.098
  8. Lei Chen, Yajie Wang, Zia-ud-Din, Peng Fei, Wensi Jin, Hanguo Xiong, Zhenjion Wang, "Enhancing the performance of starch-based wood adhesive by silane coupling agent(KH750)", International Journal of Biological Macromolecules, Vol. 104, pp. 137-144, 2017. https://doi.org/10.1016/j.ijbiomac.2017.05.182