Potential Use of Paddy Straw as Filler in Poly Lactic Acid/Paddy Straw Powder Biocomposite: Thermal and Thermal Properties

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• 作者：Noorulnajwa Diyana Yaacab^a ; ^b ; Hanafi Ismail^b ; ^{ihanafi@usm.my" class="auth_mail" title="E-mail the corresponding author} ; Sam Sung Ting^c
• 关键词：Paddy straw powder ; Polylactic acid ; Thermogravimetry ; Mechanical properties
• 刊名：Procedia Chemistry
• 出版年：2016
• 出版时间：2016
• 年：2016
• 卷：19
• 期：Complete
• 页码：757-762
• 全文大小：399 K

文摘

Paddy Straw Powder (PSP) show potential as a new reinforcement based-natural fibre. A Haake internal mixer was used to incorporated paddy straw powder (PSP) into polylactic acid (PLA). Polylactic acid (PLA)/paddy straw powder biocomposite was prepared using constant rotor speed (60 rpm) for 14 minutes at 180∘C. The effects of paddy straw powder content (5-20 wt %) on mechanical and thermal properties of the biocomposites were investigated. The tensile strength of the biocomposites was above 30 MPa up to 15 wt.% of PSP whereas the elongation at break was ranged between 2-3% with the incorporation of PSP up to 15 wt.%. Modulus elasticity was increased by increasing the paddy straw powder content. Differential scanning calorimetry (DSC) results have demonstrated a minor effect of the rice straw on thermal behavior of PLA resin Thermogravimetry, analysis (TGA) demonstrated that thermal stability of PLA/PSP biocomposites is reduced by the incorporation of PSP.