Production of polypropylene/ poplar wood flour and starch powder composite with improved mechanical and biodegradability properties

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ASGARI A.R.; HEMMASI A.H.; BAZYAR B.; TALAEIPOUR M.; NOURBAKHSH A.

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Journal Paper

Paper Information

Journal: Iranian Journal of Wood and Paper Science Research Year:2021 | Volume:36 | Issue:3 (76) Page(s): 182-193

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Information Journal Paper

Title

Production of polypropylene/ poplar wood flour and starch powder composite with improved mechanical and biodegradability properties

Author(s)

Keywords

Wood plasticQ2

wood flourQ2

starch powderQ1

mechanical propertiesQ2

biodegradabilityQ1

Abstract

The mechanical (tensile strength and modulus, bending strength and modulus), humidity (water absorption and thickness swelling) and biodegradability properties of wood-plastics produced from polypropylene and poplar wood-flour (wood flour in three levels of 0, 20 and 25 percentage) and the starch powder (at four levels of 0, 5, 10 and 15 percentage) are assessed as a strength agent. The material mixing process was run in two stages using an extruder machine and applying an internal mixer haake machine. The mechanical and humidity tests specimens are produced by mold injection method and the biodegradability test specimens are formed by hot press method. The tests are run according to standards procedures. The results indicate that an increase in weight percentage of wood-flour in the composition, increased the mechanical strength, water absorption, thickness swelling and biodegradability of composites. An increase in weight percentage of starch powder in the composition, increased the bending strength and modulus, tensile modulus, water absorption, thickness swelling and biodegradability of composites, while decreasing the tensile strength. Additional studies using the scanning electron microscopy indicate that by adding wood-flour and starch powder to the composition, the intensity of biodegradation increased at the surface of the specimens. By adding starch powder to the composition, the starch powder particles fill the cavities in the composite structure, thus a reduced in the volume of the pores in the composite structure.

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APA: Copy

ASGARI, A.R., HEMMASI, A.H., BAZYAR, B., TALAEIPOUR, M., & NOURBAKHSH, A.. (2021). Production of polypropylene/ poplar wood flour and starch powder composite with improved mechanical and biodegradability properties. IRANIAN JOURNAL OF WOOD AND PAPER SCIENCE RESEARCH, 36(3 (76) ), 182-193. SID. https://sid.ir/paper/388229/en

Vancouver: Copy

ASGARI A.R., HEMMASI A.H., BAZYAR B., TALAEIPOUR M., NOURBAKHSH A.. Production of polypropylene/ poplar wood flour and starch powder composite with improved mechanical and biodegradability properties. IRANIAN JOURNAL OF WOOD AND PAPER SCIENCE RESEARCH[Internet]. 2021;36(3 (76) ):182-193. Available from: https://sid.ir/paper/388229/en

IEEE: Copy

A.R. ASGARI, A.H. HEMMASI, B. BAZYAR, M. TALAEIPOUR, and A. NOURBAKHSH, “Production of polypropylene/ poplar wood flour and starch powder composite with improved mechanical and biodegradability properties,” IRANIAN JOURNAL OF WOOD AND PAPER SCIENCE RESEARCH, vol. 36, no. 3 (76) , pp. 182–193, 2021, [Online]. Available: https://sid.ir/paper/388229/en

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