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Effect of Graphene Nanoplatelets on Morphology and Property Enhancement of Immiscible Polycarbonate/poly(lactic Acid) Blends


Title: Effect of Graphene Nanoplatelets on Morphology and Property Enhancement of Immiscible Polycarbonate/poly(lactic Acid) Blends

Authors: Zaheeruddin Mohammed, Shaik Jeelani, and Vijaya Rangari

DOI: 10.33599/nasampe/s.19.1452

Abstract: With the advent of Additive manufacturing and 3D printing technologies various thermoplastic blends are being investigated for high performance applications. Amino functionalized Graphene Nanoplatelets (GNP) were incorporated into Polycarbonate (PC) and Poly (lactic acid) (PLA) blend to enhance the thermal and mechanical properties while reducing the dependence on petroleum resources. Nanocomposites containing 70PC/30PLA and 0.2-5 wt. % GNP were prepared via simple solution blending method and then 3D printed. Dispersion of nanoparticles and morphology of the blended composites were studied via Scanning Electron Microscopy (SEM). Using Differential scanning calorimetry (DSC) glass transition and melting behaviors were investigated. Thermal decomposition behavior was examined via Thermogravimetric Analysis (TGA). Mechanical properties were investigated by static tensile tests. It was found that selective localization of GNP’s into continuous, dispersed and interface phases of the blend affected the overall properties of the thermoplastic blend.

References: 1. Kim, Hyunwoo, and Christopher W. Macosko. "Processing-property relationships of polycarbonate/graphene composites." Polymer 50.15 (2009): 3797-3809. ( 2. Rajeev Mehta, Vineet Kumar, Haripada Bhunia & S. N. Upadhyay (2005) Synthesis of Poly(Lactic Acid): A Review,Journal of Macromolecular Science, Part C, 45:4, 325-349, DOI: 10.1080/15321790500304148 3. Guo, H. F., et al. "Prediction and manipulation of the phase morphologies of multiphase polymer blends: 1. Ternary systems." Polymer 38.4 (1997): 785-794.( 4. Guo, H-F., N. V. Gvozdic, and D. J. Meier. "Prediction and manipulation of the phase morphologies of multiphase polymer blends: II. Quaternary systems." Polymer 38.19 (1997): 4915-4923. ( 5. Lee, Jae Bok, et al. "Compatibilizing effects for improving mechanical properties of biodegradable poly (lactic acid) and polycarbonate blends." Polymer degradation and stability 96.4 (2011): 553-560. ( 6. Phuong, Vu Thanh, et al. "Compatibilization and property enhancement of poly (lactic acid)/polycarbonate blends through triacetin-mediated interchange reactions in the melt." Polymer 55.17 (2014): 4498-4513. ( 7. Kanzawa, Takeshi, and Katsuhisa Tokumitsu. "Mechanical properties and morphological changes of poly (lactic acid)/polycarbonate/poly (butylene adipate co terephthalate) blend through reactive processing." Journal of Applied Polymer Science 121.5 (2011): 2908-2918. ( 8. Xiang, Fangming, et al. "Largely enhanced ductility of immiscible high density polyethylene/polyamide 6 blends via nano-bridge effect of functionalized multiwalled carbon nanotubes." Polymers for Advanced Technologies 22.12 (2011): 2533-2542. ( 9. Shi, Yunyun, et al. "Carbon nanotubes induced microstructure and mechanical properties changes in cocontinuous poly (L-lactide)/ethylene-co-vinyl acetate blends." Polymers for Advanced Technologies 23.4 (2012): 783-790. ( 10. Chen, Jie, et al. "Improving interfacial adhesion between immiscible polymers by carbon nanotubes." Polymer 54.1 (2013): 464-471.( 11. Liu, Li, et al. "Improved fracture toughness of immiscible polypropylene/ethylene-co-vinyl acetate blends with multiwalled carbon nanotubes." Polymer 50.14 (2009): 3072-3078. ( 12. Wang, Yong-hong, et al. "Super toughened immiscible polycarbonate/poly (L-lactide) blend achieved by simultaneous addition of compatibilizer and carbon nanotubes." RSC Advances 4.103 (2014): 59194-59203. ( 10.1039/C4RA11282B) 13. Zhu, Yanwu, et al. "Graphene and graphene oxide: synthesis, properties, and applications." Advanced materials 22.35 (2010): 3906-3924. ( 14. Lee, Jian-Yuan, Jia An, and Chee Kai Chua. "Fundamentals and applications of 3D printing for novel materials." Applied Materials Today 7 (2017): 120-133. ( 15. Stephens, Brent, et al. "Ultrafine particle emissions from desktop 3D printers." Atmospheric Environment 79 (2013): 334-339. (

Conference: SAMPE 2019 - Charlotte, NC

Publication Date: 2019/05/20

SKU: TP19--1452

Pages: 10

Price: FREE

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