Journal of the Korean Wood Science and Technology

The Korean Society of Wood Science & Technology (한국목재공학회)
권호 표지

Influence of Hwangto on the Mechanical Properties of Wood Flour Reinforced High Density Polyethylene (HDPE) Composites

  • Lee, Sun-Young (Laboratory of Functional Wooden Materials, Department of Forest Products, Korea Forest Research Institute) ;
  • Doh, Geum-Hyun (Laboratory of Functional Wooden Materials, Department of Forest Products, Korea Forest Research Institute) ;
  • Kang, In-Aeh (Laboratory of Functional Wooden Materials, Department of Forest Products, Korea Forest Research Institute) ;
  • Wu, Qinglin (School of Renewable Natural Resources, Louisiana State University Agricultural Center)
  • Received : 2006.06.09
  • Accepted : 2006.07.07
  • Published : 2007.03.25
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Abstract

The mechanical properties of wood flour, Hwangto (325 and 1,400 mesh per 25,4 mm) and coupling agent-reinforced HDPE composites were investigated in this study. Hwangto and maleated polyethylene (MAPE) were used as an inorganic filler and a coupling agent, respectively. The addition of Hwangto and MAPE to virgin HDPE also increased the Young's modulus in the smaller degree. The addition of wood flour and Hwangto to virgin HDPE increased the tensile strength, due to the high uniform dispersion of HDPE by high surface area of Hwangto in HDPE and wood flour. MAPE also significantly increased the tensile strength. When wood flour was added, there was no notable difference on the tensile properties, in terms of Hwangto particle size. Hwangto also improved the flexural modulus and strength of reinforced HDPE composites. With different particle sizes of Hwangto, there was no considerable difference in flexural modulus and strength of reinforced HDPE composites. The addition of Hwangto showed slightly lower impact strength than that of wood flour. However, the particle size of Hwangto showed no significant effect on the impact strength of reinforced composites. In conclusion, reinforced HDPE composites with organic and inorganic fillers provide highly improved mechanical properties over virgin HDPE.

Keywords

References

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