Polypropylene/high impact polystyrene blend nanocomposites obtained from E-waste: evaluation of mechanical, thermal and morphological properties

Polypropylene/high impact polystyrene blend nanocomposites obtained from E-waste: evaluation of mechanical, thermal and morphological properties

Postconsumer Polypropylene and High Impact Polystyrene were obtained from E-waste by mechanical recycling. Recycled PP/HIPS at various blend ratios of 30/70, 50/50 and 70/30 were blended in a batch mixer and was optimized at a blend composition of 70/30 wt ratio of PP/HIPS based on mechanical perfor...

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Bibliographic Details
Published in:International journal of plastics technology Vol. 15; no. Suppl 1; pp. 46 - 60
Main Authors: Mural, Prasanna K. S., Mohanty, Smita, Nayak, Sanjay K., Anbudayanidhi, S.
Format: Journal Article
Language:English
Published: India Springer-Verlag 2011
Springer Nature B.V
Subjects:
Blends
Chemistry
Chemistry and Materials Science
Hips
Materials Science
Nanocomposites
Polymer Sciences
Polypropylenes
Polystyrene resins
Recycled
Research Article
Thermal properties
X-ray diffraction
E-waste
Recycled blends
Nanocomposites
Styrene-ethylene-butadiene-styrene
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Summary:Postconsumer Polypropylene and High Impact Polystyrene were obtained from E-waste by mechanical recycling. Recycled PP/HIPS at various blend ratios of 30/70, 50/50 and 70/30 were blended in a batch mixer and was optimized at a blend composition of 70/30 wt ratio of PP/HIPS based on mechanical performance. Mechanical, morphological and thermal properties of optimized recycled blend were studied using triblock copolymer SEBS, as well as SEBS with C20A. Mechanical tests revealed that the blends prepared using 3 wt% of C20A and 5 wt% SEBS with 3% C20A exhibited an increase of 45.13% and 60.73% in impact strength respectively thus indicating interaction of SEBS and C20A with HIPS and PP. Scanning Electron Microscopy (SEM) showed that incorporation of SEBS and C20A reduced average particle size from 5.078 to 2.082 and 1.724 μm respectively. X ray diffraction patterns in the recycled blend nanocomposites showed an increase in the basal spacing indicating the formation of an intercalated structure. Thermal properties of the blend and blend nanocomposites were investigated employing DSC and TGA. Further, DMA analysis showed existence of two distinct T g s corresponding to PP and HIPS thus indicating the formation of a biphase morphology.
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ISSN:0972-656X
0975-072X
DOI:10.1007/s12588-011-9005-1