The Study on the Mechanical Properties of Poly(lactic acid)/Straw Fiber Composites

Abstract:

The paper describes the production and the mechanical characteristics of composites made completely from renewable raw materials, the corn straw fiber and the biodegradable plastic, poly(lactic acid). The effect of straw fiber content on the mechanical properties of the composites was studied and the optimum mass fraction was 15%. To enhance the mechanical properties of the composites, two different methods were tested. Maleic anhydride as the compatilizer was introduced into the composites but the changes of the mechanical properties were small. While the other method, pre-treatment for straw fiber before blending, the mechanical properties increased obviously. The tensile strength and the impact strength were 35.6 MPa and 1.67 kJ/m2, respectively.

• Periodical: Applied Mechanics and Materials (Volume 200)
• Pages: 312-315
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.200.312
• Online since: October 2012
• Authors: Ping Zhang, Bing Tao Wang, De Gao, Li Hua Wen
• Keywords: Composite, Corn Straw Fiber, Mechanical Property, Poly(lactic acid) (PLA)

References

[1] D. Garlotta and J. Polym: Environ. Vol. 9 (2001), p.63.

[2] B. Gupta, N. Revagade and J. Hilborn: Prog. Polym. Sci. Vol. 32 (2007), p.455.

[3] B. Kucera: Bioplastics Mag. Vol. 2 (2007), p.20.

[4] N. Graupner: Bioplastics Mag. Vol. 1 (2006), p.18.

[5] S. Herrmann: Bioplastics Mag. Vol. 2 (2007), p.14.

[6] K. Oksman, M.Skrifvars and J. F. Selin: Compos. Sci. Technol. Vol. 63 (2003), p.1317.

[7] S. Lee and S. Wang: Compos. Part A-Appl. S. Vol. 37 (2005), p.80.

[8] D. Plackett, T. L. Andersen, W. B. Pedersen and L. Nielsen: Compos. Sci. Technol. Vol. 63 (2003), p.1287.

[9] S. Ochi: Mechanicals of materials, Vol. 40 (2008), p.446.