Effect of poly lactic acid on physical and mechanical properties of wood plastic composite

Document Type : Research Paper

Authors

1 M.S. Department of wood and paper science and technology, Faculty of natural resources, University of Tehran, Karaj, Irann

2 M.S. Department of wood and paper science and technology, Faculty of natural resources, University of Tehran, Karaj, Iran

3 Ph.D. Student, wood composite products, Zabol university, Zabol, Iran

Abstract

In the present research, the mechanical and physical properties of poly lactic acid-canola stem flour composites made by compression molding technique were studied according to ASTM standards. According to the results achieved, it was found that modulus of rupture, tensile strength and impact strength were decreased by increasing the amount of Canola stem flour in comparison with pure PLA. In contrast, the elastic properties including Young's modulus, flexural modulus, and surface hardness increased. The addition of canola stem flour also increased water absorption and thickness swelling. Furthermore, a significant increase in the composite crystallinity degrees was observed in the study of thermal properties by DSC test. It can be concluded that the use of Canola stem as a cheap and renewable lignocellulose source can as well as having a filler role in making composites, improve some of the mechanical properties of the same composites.

Keywords

Main Subjects

References

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Iranian Journal of Wood and Paper Industries
Volume 10, Issue 2
August 2019
Pages 261-272

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