Effects of Starch Content and Compatibilizer on the Mechanical, Water Absorption and Biodegradable Properties of Potato Starch filled Polypropylene Blends

Authors(6) :-Obasi, H. C., Egeolu, F. C., Ezenwajiaku, H. I.

Tensile, water absorption and biodegradable properties of potato starch filled polypropylene blends have been investigated. Polypropylene grafted maleic anhydride (PP-g-MA) was used as compatibilizer. It was observed that the tensile strength and elongation at break are inversely related to the starch content but Young’s modulus followed a direct relationship with the starch content. However, the addition of PP-g-MA to the blends improved the tensile strength and elongation at break even though they were still lower than the neat polymer but the Young’s modulus increased progressively. This is as a result of the enhanced interfacial bonding between the starch and matrix which can be proved by the SEM images. The tensile strength and elongation at break of the compatibilized blends increased by 30.59%; 42.62% and 23.36%; 24.62% in comparison with the uncompatibilized blends at 10 wt.% and 50 wt.% respectively. The percent water absorbed and weight loss of the PS/PP were higher than the CPS/PP blends due to poor interfacial bonding. Biodegradation products of the blends showed no deleterious effects on the growth of plants.

Authors and Affiliations

Obasi
Department of Polymer and Textile Engineering, Federal University of Technology, Owerri, Nigeria
H. C.
Library Department, Federal University of Technology, Owerri, Nigeria
Egeolu
Department of Chemical and Biological Engineering, University of Ottawa, Ontario, Cananda
F. C.

Ezenwajiaku

H. I.

Potato starch, Polypropylene, Compatibilizer, Tensile properties, Water absorption, Weight loss.

Publication Details

Published in : Volume 1 | Issue 1 | January-Febuary 2015
Date of Publication : 2015-02-25
License:  This work is licensed under a Creative Commons Attribution 4.0 International License.
Page(s) : 190-196
Manuscript Number : IJSRSET151141
Publisher : Technoscience Academy

Print ISSN : 2395-1990, Online ISSN : 2394-4099

Cite This Article :

Obasi, H. C., Egeolu, F. C., Ezenwajiaku, H. I., " Effects of Starch Content and Compatibilizer on the Mechanical, Water Absorption and Biodegradable Properties of Potato Starch filled Polypropylene Blends, International Journal of Scientific Research in Science, Engineering and Technology(IJSRSET), Print ISSN : 2395-1990, Online ISSN : 2394-4099, Volume 1, Issue 1, pp.190-196, January-Febuary-2015.
Journal URL : http://ijsrset.com/IJSRSET151141

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