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Calcium carbonate (CaCO 3 ) nanoparticle filled polypropylene: Effect of particle surface treatment on mechanical, thermal, and morphological performance of composites
Author(s) -
Kamal Manish,
Sharma C. S.,
Upadhyaya Pradeep,
Verma Vishal,
Pandey K. N.,
Kumar Vijai,
Agrawal D. D.
Publication year - 2011
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.35319
Subject(s) - materials science , composite material , polypropylene , thermogravimetric analysis , stearic acid , nanocomposite , maleic anhydride , ultimate tensile strength , melt flow index , flexural strength , izod impact strength test , chemical engineering , polymer , copolymer , engineering
Abstract The present study was aimed to see the effect of surface treatment on nanocomposites with different fatty acids (stearic acid and oleic acid) having two different coupling agents (titanate and silane). Nanocomposites were prepared via melt mixing in Haake 90 twin screw extruder. The characterization of nanocomposites had been carried out using various advance analytical techniques such as dynamic mechanical analysis, thermogravimetric analysis, heat distortion temperature, melt flow index, and scanning electron microscopy. The strength and stiffness were also improved with the incorporation of maleic‐anhydride grafted ethylene propylene rubber in PP/Nano‐CaCO 3 nanocomposites. The tensile, flexural, and impact strength properties of PP/MA‐g‐EPR/treated‐CaCO 3 and untreated nanocomposites were determined. These studies revealed that stearic acid treated nanofiller filled composites had better properties than those of untreated and oleic acid treated nanofiller filled composites. The SEM studies demonstrated that the dispersion and distribution of Nano‐CaCO 3 (nCaCO 3 ) particles within the polypropylene matrix were dependent on the nature of surface treating agents. © 2011 Wiley Periodicals, Inc. J Appl Polym Sci, 2012