Preparation and properties of luffa fiber- and kenaf fiber-filled poly(butylene succinate-co-lactate)/starch blend-based biocomposites |
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| Institution: | 1. Department of Chemical and Materials Engineering, National I-Lan University, I-Lan 260, Taiwan, ROC;2. Department of Chemical and Materials Engineering, Chang Gung University, Tao-Yuan 333, Taiwan, ROC;3. Graduate Institute of Biochemical and Biomedical Engineering, Chang Gung University, Tao-Yuan 333, Taiwan, ROC;1. Materials Engineering Department, Federal University of Paraíba, João Pessoa, PB, 58051-900, Brazil;2. Materials Engineering Department, Federal University of Campina Grande, Campina Grande, PB 58429-900, Brazil;3. Chemistry Engineering Department, Federal University of Pernambuco, Recife, PE, 50670-901, Brazil;1. Key Laboratory of Engineering Dielectrics and Its Application, Ministry of Education, Harbin University of Science and Technology, Harbin 150080, PR China;2. Yuancheng Cable Co. Ltd., Yixing 214200, PR China;3. Shanghai Qifan Wire and Cable Co. Ltd., Shanghai 200008, PR China;1. Carbon Composite Research Centre, Department of Polymer-Nano Science and Technology, Chonbuk National University, Jeonju, Jeonbuk 54896, Republic of Korea;2. Advanced Materials Institute of BIN Technology (BK21 plus Global), Dept. of BIN Convergence Technology, Chonbuk National University, Jeonju, Jeonbuk 54896, Republic of Korea;3. Surface Engineering & Tribology Division, CSIR-Central Mechanical Engineering Research Institute, Council of Scientific & Industrial Research (CSIR), Mahatma Gandhi Avenue, Durgapur 713209, India;1. Saitama Industrial Technology Center Northern Laboratory, Saitama, Japan;2. Saitama Industrial Technology Center, Saitama, Japan;3. Institute for High Technology Production Systems, Waseda University, Saitama, Japan;4. Precision and Intelligence Laboratory, Tokyo Institute of Technology, Kanagawa, Japan;1. Department of Botany, Utkal University, Bhubaneswar, Odisha, India;2. Department of Physics, College of Basic Sciences and Humanities, OUAT, Bhubaneswar, Odisha, India |
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| Abstract: | Biodegradable poly(butylene succinate-co-lactate) (PBSL)/starch blends that contain various amounts of starch were prepared. In addition, luffa fiber (LF) and kenaf fiber (KF) were incorporated, individually, into PBSL/starch (70/30) blend to achieve biocomposites. The LF and KF were treated with NaOH(aq) prior to their addition to the blend. The Young's modulus and flexural modulus of PBSL increased with the addition of starch and increased further after the formation of the biocomposites. The highest Young's modulus increment, which was found in the KF-added system, was up to a 2.2-fold increase compared with neat PBSL. The tensile/flexural/impact strength of PBSL declined after the formation of the blends. With the further addition of LF/KF, the said properties leveled off. The blends exhibited higher complex viscosity and dynamic storage modulus in the melt state than the neat PBSL, and the values further increased in the biocomposites. The crystallization temperature of PBSL slightly decreased in the blends. By contrast, the biocomposites showed an increment in PBSL crystallization temperature, from 73.0 °C (PBSL) to 75.3 °C (KF-added composite), thereby confirming the surface nucleation effect of LF/KF. The blends showed a higher degree of water absorption than PBSL. The formation of biocomposites led to an even higher degree of water absorption. The current approach of including LF/KF in the PBSL/starch blend to enhance the rigidity and biodegradability was advantageous in expanding the applications of PBSL. |
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| Keywords: | poly(butylene succinate-co-lactate) Starch Luffa fiber Kenaf fiber Biocomposites Physical properties |
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