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Scrutinization of Poly(ethylene-co-ethyl acrylate)/Poly(methyl acrylate) and Zein-based Nanocomposite

Ayesha Kausar

Abstract


In this study, a blend of poly(ethylene-co-ethyl acrylate) (PEEA) and poly(methyl acrylate) (PMA) was prepared using solution technique. Later the blend was reinforced with 1-5 wt.% zein (corn protein) as filler. Mechanical, thermal and morphological characteristics of PEEA/PMA/Zein nanocomposite were measured using suitable techniques. The analysis of the fractured surfaces by scanning electron microscope showed that the zein was dispersed in the form of elliptical grains. Morphology of PEEA/PMA/Zein nanocomposite illustrated homogeneous granular dispersion with no phase separation due to blend miscibility and compatibility with zein nanoparticles. Tensile strength of PEEA/PMA/Zein 1-5 nanocomposite was increased from 30.1 to 45.8 MPa relative to neat blend (24.7 MPa). Similarly Young’s modulus of PEEA/PMA with 5 wt. % zein filler was 31% higher than the neat blend. The dynamic mechanical thermal analysis (DMTA) results depicted shift in tan δ peaks of blend at 187 °C to 219 °C in PEEA/PMA/Zein 5 nanocomposite.


Keywords


Poly(ethylene-co-ethyl acrylate); poly(methyl acrylate); blend; solution route; zein; DMTA

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References


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