Fabrication and characterization of biodegradable poly(butylene succinate-co-adipate) nanocomposites with halloysite nanotube and organo-montmorillonite as nanofillers |
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| Institution: | 1. Department of Chemical and Materials Engineering, Chang Gung University, Tao-Yuan, 333, Taiwan;2. Department of General Dentistry, Chang Gung Memoral Hospital, Tao-Yuan, 333, Taiwan;1. Department of Materials Science and Engineering, College of New Energy and Materials, China University of Petroleum, Beijing, 102249, PR China;2. Institute of Systems Engineering, AMS, Beijing, 102300, PR China;1. School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China;2. Institute of Forensic Science, Criminal Police Corps of Chongqing Public Security Bureau, Chongqing 400021, China;3. Chongqing Academy of Science and Technology, Chongqing 401123, China;1. Department of Industrial Engineering (DII), University of Catania, Viale A. Doria 6, 95125 Catania, CT, Italy;2. Dipartimento di Ingegneria Civile, Chimica, Ambientale e dei Materiali, Università di Bologna, Via Terracini 28, 40131 Bologna, Italy;3. Interdepartmental Centre for Agri-Food Industrial Research, Alma Mater Studiorum, University of Bologna, Department of Food Science, Piazza Goidanich 60, 47023 Cesena, FC, Italy;1. DST-CSIR National Centre for Nanostructured Materials, Council for Scientific and Industrial Research, Pretoria 0001, South Africa;2. Department of Chemical Engineering, University of Johannesburg, Doornfontein, Johannesburg 2028, South Africa;3. Department of Applied Chemistry, University of Johannesburg, Doornfontein 2028, South Africa;1. Normandie Univ, UNIROUEN, INSA Rouen, CNRS, PBS, 76000 Rouen, France;2. Normandie Univ, UNIROUEN, LECAP, 76000 Rouen, France;3. Mines Douai, Department of Polymers and Composites Technology and Mechanical Engineering, F-59508 Douai, France |
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| Abstract: | Biodegradable poly(butylene succinate-co-adipate) (PBSA)-based nanocomposites were successfully prepared. A commercial halloysite nanotube (HNT) and an organo-montmorillonite (denoted as 15A) served as reinforcing fillers. Scanning electron microscopy and transmission electron microscopy results confirmed the nano-scale dispersion of HNT and 15A in the composites. Differential scanning calorimetry results showed that 15A served as nucleating agent for PBSA crystallization, but HNT hardly affected the nucleation of PBSA. Both nanofillers assisted the isothermal crystallization of PBSA, with 15A demonstrating superior efficiency. Melting behavior study suggests that the presence of HNT or 15A hampered the melting-recrystallization process of the originally less stable crystals during heating scans. Thermogravimetric analyses revealed that 15A enhanced the thermal stability of PBSA in air environment, but HNT caused a decline at high loadings. The rigidity of PBSA, including Young’s/flexural moduli, evidently increased after the addition of HNT or 15A, with 15A showing higher enhancing efficiency than HNT at similar loadings. The flexural modulus increased up to 94% with 20 wt% in HNT and up to 48% with 5 wt% 15A loading. The rheological property measurements confirmed the achievement of pseudo-network structure at 5 wt% 15A loading, whereas the HNT-included system did not develop a network structure. |
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| Keywords: | Poly(butylene succinate-co-adipate) Halloysite nanotube Organo-montmorillonite Nanocomposites Physical properties |
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