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Development and characterization of halloysite nanotubes reinforced polyetherimide (PEI) nanocomposites
Author : Abrar Ahamad, Dhananjay Singh and Pradeep Kumar*
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ABSTRACT
Nanocomposites comprising of polyetherimide (PEI) incorporated with various loadings (1, 2 and 3) wt% of halloysite nanotubes (HNT’s). The developed PEI/HNT’s nanocomposites were characterized by UTM, TGA, SEM and FTIR. The mechanical properties of the developed nanocomposites have shown an appreciable enhancement in tensile and toughening properties. The maximum enhancement was found at 2 wt% loading of HNTs in PEI matrix nearly 8% enhancement in tensile stress, 4% modulus, 40% impact energy and 43% izod impact strength as compared to pure PEI. Thermo-gravimetric analysis (TGA) result of prepared nanocomposites shows that there is an increase in the temperature of 20ºC in thermal stability with the addition of 2 wt% HNT’s in PEI matrix. SEM studies reveal that PEI matrix possesses excellent dispersion of HNTs. The possible interaction between PEI and HNTs was investigated by Fourier Transform Infrared Spectroscopy (FTIR) which confirms the better activity of HNT’s in PEI matrix.
KEYWORD
Halloysite, PEI, tensile properties, TGA, morphology