Study of Processing and Properties of a few Hemp Linter Fiber Reinforced Polylactic Acids Composite Materials

Abstract:

Composites of poly(L-lactide) (PLA) with hemp linter fibers, prepared by batch mixing and plasticized with poly(ethylene glycol) (PEG; weight-average molecular weight 1000 g/mol), were examined by differential scanning calorimetry, thermogravimetric analysis, and mechanical tests. The properties of samples of PLA/hemp and PLA–PEG/hemp composites were analyzed as a function of the fiber amount. The thermogravimetric analysis of the composites, carried out in air, showed that the degradation process of fiber-filled systems started earlier than that of plain PLA, independently of the presence of the plasticizer. Mechanical tests showed that the property of the composites have been enhanced increased with the hemp content. The mechanical performance high-point of composites appear with count of hemp linter fiber at 1%.(sample count of hemp fiber form 1% to 7%). Plasticization with PEG did not improve the tensile properties of the composites, but improve its break stress.

• Periodical: Advanced Materials Research (Volumes 332-334)
• Pages: 1785-1789
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.332-334.1785
• Online since: September 2011
• Authors: Jia Shuang Luan, Mei Zhang, Fu Gui Zhou, Yang Wang, Gang Ma, Xiu Jie Li, Gui Bin Wang
• Keywords: Composite, Hemp Fiber, Mechanical Property, Poly(lactic acid) (PLA), Thermal Behavior

References

[1] D. Nabi-Saheb, J.P. Jog: Adv Polym Technol Vol. 18 (1999), p.351.

[2] P. Wambua, J. Ivens, I. Verpoest :Compos Sci Technol Vol. 63 (2003), p.1259.

[3] R. Hans, Kricheldorf: Chemophere Vol. 43(2001), p.49.

[4] L. Wang , W. Ma, R.A. Gross, et al. : Polym Deg Stab, Vol. 59(1998), p.161.

[5] Plackett D, Logstrup A T,Batsberg P W, et al. : Comp Sci Techn, Vol. 63(2003), p.1287.

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

[7] L. Seung-Hwan, W. Siqun: Composites Part A: Appl Sci Manu, Vol. 37 (2006), p.80.

[9] Mathew, A. P.; Oksman, K.; Sain, M. J Appl Polym Sci 97 (2005), p.2014.

[8] O. Martin,L. Averous: Polym Vol. 42 (2001), p.6209.

[9] T.Ke, X.S. Sun: J Appl Polym Sci Vol. 89 (2003), p.1203.

[10] B.Braun, J.R. Dorgan, D.M. Knauss: J Polym Environ Vol. 14 (2006), p.49.

[11] W.C. Lai, W.B. Liau, T.T. Lin: Polym Vol. 45 (2004), p.3073.

[12] Robert Masirek, Zbigniew Kulinski, et al. :J Appl Polym Sci. Vol. 105 (2007) , p.255.