THERMAL PROPERTIES OF WOOD-PLASTIC COMPOSITES PREPARED FROM HEMICELLULOSE-EXTRACTED WOOD FLOUR

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ENAYATI A.A.; HOSSEINAEI O.; WANG S.; MIRSHOKRAIE S.A.; TAJVIDI M.

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Journal: Iranian Journal of Polymer Science and Technology Year:2009 | Volume:22 | Issue:3 (ISSUE NO. 101) Page(s): 171-181

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Title

THERMAL PROPERTIES OF WOOD-PLASTIC COMPOSITES PREPARED FROM HEMICELLULOSE-EXTRACTED WOOD FLOUR

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Keywords

WOOD-PALSTICQ3

HEMICELLULOSEQ3

THERMAL PROPERTIESQ2

DSCQ2

TGAQ3

Abstract

Hemicellulose of Southern Yellow Pine wood spices was extracted by pressurized hot water at three different temperatures: 140oC, 155oC and 170°C. Compounding with PP (polypropylene) was per-formed by extrusion after preparing wood flour and sieving to determine its mesh size. The ratio of wood to polymer was 50:50 based on oven-dry weight of wood flour. All extraction treatments and control samples were compounded under two sets of conditions, without and with 2% MAPP as coupling agent. Injection molding was used to make tensile test samples (dogbone) from the pellets made by extrusion. THERMAL PROPERTIES of wood-plastic composites were studied by TGA and DSC while the thermal stability of pretreated wood flours, PP and MAPP were studied by TGA as well.The greater weight loss of wood materials was an indication that higher treatment temperature increases the extractability of HEMICELLULOSE. The removal of HEMICELLULOSE by extraction improves thermal stability of wood flour, especially for extraction at 170oC. Wood-plastic composites made from extracted fibers at 170oC showed the highest thermal stability. Coupling agent did not have a significant effect on thermal stability but it improved the degree of crystallinity of the composites.Surface roughness of wood fiber increased after treatment. Extraction of HEMICELLULOSE increased the degree of crystallinity but it was not significant except for samples from treated wood flour at 170oC and witli MAPP.

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APA: Copy

ENAYATI, A.A., HOSSEINAEI, O., WANG, S., MIRSHOKRAIE, S.A., & TAJVIDI, M.. (2009). THERMAL PROPERTIES OF WOOD-PLASTIC COMPOSITES PREPARED FROM HEMICELLULOSE-EXTRACTED WOOD FLOUR. IRANIAN JOURNAL OF POLYMER SCIENCE AND TECHNOLOGY (PERSIAN), 22(3 (ISSUE NO. 101)), 171-181. SID. https://sid.ir/paper/6323/en

Vancouver: Copy

ENAYATI A.A., HOSSEINAEI O., WANG S., MIRSHOKRAIE S.A., TAJVIDI M.. THERMAL PROPERTIES OF WOOD-PLASTIC COMPOSITES PREPARED FROM HEMICELLULOSE-EXTRACTED WOOD FLOUR. IRANIAN JOURNAL OF POLYMER SCIENCE AND TECHNOLOGY (PERSIAN)[Internet]. 2009;22(3 (ISSUE NO. 101)):171-181. Available from: https://sid.ir/paper/6323/en

IEEE: Copy

A.A. ENAYATI, O. HOSSEINAEI, S. WANG, S.A. MIRSHOKRAIE, and M. TAJVIDI, “THERMAL PROPERTIES OF WOOD-PLASTIC COMPOSITES PREPARED FROM HEMICELLULOSE-EXTRACTED WOOD FLOUR,” IRANIAN JOURNAL OF POLYMER SCIENCE AND TECHNOLOGY (PERSIAN), vol. 22, no. 3 (ISSUE NO. 101), pp. 171–181, 2009, [Online]. Available: https://sid.ir/paper/6323/en

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