Fibers and Polymers

, Volume 11, Issue 1, pp 60–66

Mechanical properties of denim fabric reinforced poly(lactic acid)

  • Jung Tae Lee
  • Myung Wook Kim
  • Young Seok Song
  • Tae Jin Kang
  • Jae Ryoun Youn
Article

DOI: 10.1007/s12221-010-0060-6

Cite this article as:
Lee, J.T., Kim, M.W., Song, Y.S. et al. Fibers Polym (2010) 11: 60. doi:10.1007/s12221-010-0060-6

Abstract

Denim, a twilled cotton fabric, was used to enhance the mechanical and thermal properties of poly(lactic acid) (PLA). The denim fabric reinforced composites with different numbers of denim layers were fabricated by using a hand layup method. The impact, tensile, and dynamic mechanical properties of the composites were observed with increasing denim layers to examine the reinforcing effect of denim fabrics. Numerical analysis was carried out to model the elastic modulus of the composite by using a commercial software. Three-dimensional geometry of the denim fabric reinforced PLA composite was generated through a CAD program, and the elastic modulus was calculated by applying uniform deformation on one surface. The impact strength, tensile strength, and thermal properties of the composites were improved by piling denim fabrics. The denim fabric reinforced composites exhibited outstanding impact strength due to the retarded crack propagation as well as large energy dissipation. The 3 layer denim reinforced composite showed best results among all specimens, and its impact strength, tensile strength, and tensile modulus were measured to be 82 J/m, 75.76 MPa, and 4.65 GPa, respectively. The PLA/denim composites have good mechanical properties and can substitute traditional composites such as glass fiber or carbon fiber reinforced composites.

Keywords

Green composite PLA Denim Tensile modulus Impact strength 

Copyright information

© The Korean Fiber Society and Springer Netherlands 2010

Authors and Affiliations

  • Jung Tae Lee
    • 1
  • Myung Wook Kim
    • 1
  • Young Seok Song
    • 2
  • Tae Jin Kang
    • 1
  • Jae Ryoun Youn
    • 1
  1. 1.Research Institute of Advanced Materials (RIAM), Department of Materials Science and EngineeringSeoul National UniversitySeoulKorea
  2. 2.Department of Fiber System EngineeringDankook UniversityGyeonggi-doKorea

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