Fabrication, characterization, and application of biocomposites from poly(lactic acid) with renewable rice husk as reinforcement
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Filaments for three-dimensional printing were fabricated from composites based from biodegradable Poly(lactic Acid) (PLA) and renewable rice husk (RH). Acrylic acid (AA)-grafted PLA (PLA-g-AA) and coupling agent-treated rice husk (TRH) were incorporated to improve the properties of PLA/RH biocomposites. The biocomposite morphology, tensile properties, water absorption, and biodegradability were investigated. PLA-g-AA/TRH demonstrated superior tensile properties than PLA/RH because of the improved compatibility between the polymer and the TRH. TRH was evenly dispersed in the PLA-g-AA, brought about by ester reaction; consequently, branched and three-dimensional networks structures were generated. These PLA-g-AA/TRH biocomposites can be used as biodegradable materials or filaments for 3D printing applications because of their low cost and excellent properties.
KeywordsPoly(lactic acid) (PLA) Rice husk (RH) Surface treatment Coupling agent-treated Three-dimensional networks structures 3D printing application
The authors would like to thank the National Science Council (Taipei City, Taiwan, R.O.C.) for the financial support (MOST 103-2622-E-244 -001 -CC3) and Wuliangye Group Co. Ltd. The authors also express their appreciation to the National Natural Science Foundation of China, Apex Nanotek Co. Ltd., the Ratchadapisek Sompote Fund for Postoctoral Fellowship (Chulalongkon University), the Sichuan Province Science and Technology Support Program (19CXRC0081), the Zigong City Science and Technology office (2017XC16).
- 8.Tsou CH, Suen MC, Yao WH, Yeh JT, Wu CS, Tsou CY, Chiu SH, Chen JC, Wang RY, Lin SM, Hung WS, De Guzman M, Hu CC, Lee KR (2014) Preparation and characterization of bioplastic-based green renewable composites from tapioca with acetyl Tributyl citrate as a plasticizer. Materials 7:5617–5632PubMedPubMedCentralCrossRefGoogle Scholar
- 9.Tsou CH, Wu CS, Hung WS, De Guzmana MR, Gao C, Wang RY, Chen J, Wan N, Peng YJ, Suen MC (2019) Rendering polypropylene biocomposites antibacterial through modification with oyster shell powder. Polymer 160:265–271. https://doi.org/10.1016/j.polymer.2018.11.048
- 23.Tsou CH, Hung WS, Wu CS, Chen JC, Huang CY, Chiu SH, Tsou CY, Yao WH, Lin SM, Chu CK, Hu CC, Lee KR, Suen MC (2014) New composition of maleic-anhydride-grafted poly(lactic acid)/rice husk with methylenediphenyl diisocyanate 20:446–451Google Scholar
- 35.Wu CS (2012). Polym Degrad Stab 97:64–71Google Scholar