Advanced Composite Materials

The Korean Society for Composite Materials (한국복합재료학회)
권호 표지

Thermal conductivity of PLA-bamboo fiber composites

  • Takagi, Hitoshi (Institute of Technology and Science, University of Tokushima) ;
  • Kako, Shuhei (Graduate School of Engineering, University of Tokushima) ;
  • Kusano, Koji (Institute of Technology and Science, University of Tokushima) ;
  • Ousaka, Akiharu (Institute of Technology and Science, University of Tokushima)
  • Published : 2007.12.01
Download PDF
⟨ Previous Next ⟩

Abstract

'Green' composites were fabricated from poly lactic acid (PLA) and bamboo fibers by using a conventional hot pressing method. The insulating properties of the PLA-bamboo fiber 'green' composites were evaluated by determination of the thermal conductivity, which was measured using a hot-wire method. The thermal conductivity values were compared with theoretical estimations. It was demonstrated that thermal conductivity of PLA-bamboo fiber 'green' composites is smaller than that of conventional composites, such as glass fiber reinforced plastics (GFRPs) and carbon fiber reinforced plastics (CFRPs). The thermal conductivity of PLA-bamboo fiber 'green' composites was significantly influenced by their density, and was in fair agreement with theoretical predictions based on Russell's model. The PLA-bamboo fiber composites have low thermal conductivity comparable with that of woods.

Keywords

References

  1. M. Wollerdorfer and H. Bader, Influence of natural fibers on the mechanical properties of biodegradable polymers, Industrial Crops and Products 8, 105-112 (1998). https://doi.org/10.1016/S0926-6690(97)10015-2
  2. S. Luo and A. N. Netravali, Interfacial and mechanical properties of environment-friendly 'green' composites made from pineapple fibers and poly(hydroxybutyrate-co-valerate) resin, J. Mater. Sci. 34, 3709-3719 (1999). https://doi.org/10.1023/A:1004659507231
  3. S. Luo and A. N. Netravali, Mechanical and thermal properties of environmentally friendly 'green' composites made from pineapple leaf fibers and poly(hydroxybutyrate-co-valerate) resin, Polym. Compos. 20, 367-378 (1999). https://doi.org/10.1002/pc.10363
  4. P. Lodha and A. N. Netravali, Characterization of interfacial and mechanical properties of 'green' composites with soy protein isolate and ramie fiber, J. Mater. Sci. 37, 3657-3665 (2002). https://doi.org/10.1023/A:1016557124372
  5. A. N. Netravali and S. Chabba, Composites get greener, Materials Today April, 22-28 (2003).
  6. A. K. Mohanty, M. Misra and G. Hinrichsen, Biofibers, biodegradable polymers and biocomposites: an overview, Macromol. Mater. Engng 276/277, 1-24 (2000). https://doi.org/10.1002/(SICI)1439-2054(20000301)276:1<1::AID-MAME1>3.0.CO;2-W
  7. D. H. Mueller and A. Krobjilowski, New discovery in the properties of composites reinforced with natural fibers, J. Ind. Textiles 33, 111-130 (2003). https://doi.org/10.1177/152808303039248
  8. H. Takagi and S. Ochi, Characterization of high-strength 'green' composites using Manila hemp fibers and starch-based resin, in: Proc. Third Japan-Canada Joint Conf. New Appl. Adv. Compos. (JCJC-III), pp. 19-27 (2003).
  9. H. Takagi and Y. Ichihara, Effect of fiber length on mechanical properties of 'green' composites using a starch-based resin and short bamboo fibers, JSME Int. J., Series A 47, 551-555 (2004). https://doi.org/10.1299/jsmea.47.551
  10. H. Takagi, Biodegradation behavior of starch-based 'green' composites reinforced by Manila hemp fibers, in: Proc. Third Int. Conf. Eco-Compos., pp. 141-147 (2005).
  11. R. Mangal, N. S. Saxena, G. P. Joshi, M. S. Sreekala and S. Thomas, Measurement of effective thermal conductivity and thermal diffusivity for assessing the integrity of fiber to matrix bond in natural fiber composite, Indian J. Pure Appl. Phys. 41, 712-718 (2003).
  12. J. Khedari, S. Charoenvai and J. Hirunlabh, New insulating particleboards from durian peel and coconut coir, Building and Environment 38, 435-441 (2006). https://doi.org/10.1016/S0360-1323(02)00030-6
  13. S. W. Kim, S. H. Lee, J. S. Kang and K. H. Kang, Thermal conductivity of thermoplastics reinforced with natural fibers, Int. J. Thermophys. 27, 1873-1881 (2006). https://doi.org/10.1007/s10765-006-0128-0
  14. A. J. Ragauskas, C. K. Williams, B. H. Davison, G. Britovsek, J. Cairney, C. A. Eckert, W. J. Frederick Jr, J. P. Hallett, D. J. Leak, C. L. Liotta, J. R. Mielenz, R. Murphy, R. Templer and T. Tschaplinski, The path forward for biofuels and biomaterials, Science 311, 484-489 (2006). https://doi.org/10.1126/science.1114736
  15. S. Ochi, H. Takagi and R. Niki, Mechanical properties of heat-treated natural fibers, in: Proc. 1st Conf. High Performance Structures and Composites, pp. 117-125 (2002).
  16. H.W. Russell, Principles of heat flow in porous insulation, J. Amer. Ceramic Soc. 18, 1-5 (1935). https://doi.org/10.1111/j.1151-2916.1935.tb19340.x