Comparative Study of the Mechanical and Thermal Properties of Polyamide-66 Filled with Commercial and Nano-Mg(OH)2 Particles

In the present work, polyamide-Mg(OH) 2 nanocomposites were prepared via melt intercalation on a twin-screw extruder. Different particle sizes (24, 20, 11 nm) of Mg(OH) 2 were synthesized by in-situ deposition technique and its shape and sizes was confirmed on transmission electron microscope (TEM)....

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Bibliographic Details
Published in:Polymer-plastics technology and engineering 2011-01, Vol.49 (5), p.474-480
Main Authors: Sonawane, S. S., Mishra, S., Shimpi, N. G., Rathod, A. P., Wasewar, K. L.
Format: Article
Language:English
Subjects:
Applied sciences
Composites
Dispersions
Electron microscopes
Exact sciences and technology
Flame retardency
Forms of application and semi-finished materials
Glass transition temperature
Mechanical properties
Melting Temperature (M.T.)
Nano-Mg(OH)
Nanocomposites
Nanomaterials
Nanostructure
Particulate composites
Polyamide 66
Polyamide resins
Polymer industry, paints, wood
Technology of polymers
Thermal properties
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Summary:In the present work, polyamide-Mg(OH) 2 nanocomposites were prepared via melt intercalation on a twin-screw extruder. Different particle sizes (24, 20, 11 nm) of Mg(OH) 2 were synthesized by in-situ deposition technique and its shape and sizes was confirmed on transmission electron microscope (TEM). Nano-Mg(OH) 2 was added from 1 to 4 wt% in the polyamide. Properties such as tensile strength, elongation at break, hardness, and flame retardency were studied. These results were then compared with commercial Mg(OH) 2 -filled composites. There was propounding effect to be observed on properties of polyamide nanocomposites due to uniform dispersion of nano-Mg(OH) 2 and commercial Mg(OH) 2 . Moreover, thermal property like thermal degradation was studied on TGA. Extent of dispersion of nano-Mg(OH) 2 was studied along with microcracks generated during tensile testing using AFM. It was found that nano-Mg(OH) 2 is thermally more stable compared to that of commercial Mg(OH) 2 . Besides that, T g and M.T. are studied on DSC.
ISSN:0360-2559
1525-6111
DOI:10.1080/03602550903413938