Morphological and rheological characterization of multi-walled carbon nanotube/PLA/PBAT blend nanocomposites

被引：0
作者：
S. W. Ko
M. K. Hong
B. J. Park
R. K. Gupta
H. J. Choi
S. N. Bhattacharya
机构：
[1] Inha University,Department of Polymer Science and Engineering
[2] RMIT University,Rheology and Materials Processing Centre, School of Civil, Environmental and Chemical Engineering
来源：
Polymer Bulletin | 2009年 / 63卷
关键词：
Nanocomposite; Poly (lactic acid); Biodegradable polymer; Multi-walled carbon nanotube;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Biodegradable poly (lactic acid) (PLA)/poly (butyleneadipate-co-butyleneterephthalate) (PBAT)/multi-walled carbon nanotube (MWNT) polymer blend nanocomposites were prepared by using a laboratory-scale twin-screw extruder. Fractured surface morphology of the polymer blend/MWNT nanocomposites were examined via SEM. Furthermore, cross sectioned samples obtained using an ultramicrotome was observed via TEM. In addition, effects of both MWNT reinforcement and phase affinity of MWNT on thermal and rheological properties of the PLA/PBAT blends were investigated by TGA and rotational rheometer. Immiscible PLA/PBAT blend with MWNT nanocomposites showed two-step thermal degradation. The onset temperature of thermal degradation started in the PLA much earlier than in the PBAT. Nonetheless, based on TGA data, it was found that the MWNT enhanced thermal property of the PLA/PBAT blend/MWNT nanocomposites. Rheological properties revealed that both shear and complex viscosities showed unique shear thinning behavior due to selectively localized MWNT dispersion state.
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页码：125 / 134
页数：9
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  • [21] Jhon MS(2007)Highly selective dispersion of single-walled carbon nanotubes using aromatic polymers Nat Nanotechnol 2 640-646
  • [22] Grossiord N(2006)Solubilizing single-walled carbon nanotubes with pyrene-functionalized block copolymers J Polym Sci A: Polym Chem 44 1941-1951
  • [23] Loos J(1997)Estimation of the volume resistivity of electrically conductive composites Polym Compos 19 711-725
  • [24] Koning CE(2003)A method to control the dispersion of carbon black in an immiscible polymer blend Polym Eng Sci 43 1058-1063
  • [25] Ray SS(2002)Entropy penalty-induced self-assembly in carbon black or carbon fiber filled polymer blends Macromolecules 35 945-951
  • [26] Vaudreuil S(2006)Studies of ABS-graft-maleic anhydride/clay nanocomposites: morphologies, thermal stability and flammability properties Polym Degrad Stab 91 2951-2959
  • [27] Maazouz A(2005)Polymer blend/organoclay nanocomposite with poly(ethylene oxide) and poly(methyl methacrylate) Euro Polym J 41 679-685
  • [28] Bousmina M(2007)Multi-walled carbon nanotube/polystyrene composites prepared by in-situ bulk sonochemical polymerization J Nanosci Nanotech 7 3400-3403
  • [29] Vaudreuil S(undefined)undefined undefined undefined undefined-undefined
  • [30] Labzour A(undefined)undefined undefined undefined undefined-undefined
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