STUDIES ON MORPHOLOGY, MECHANICAL AND OPTICAL PROPERTIES OF PP/HDPE/EVA/ PLA BLEND MODIFIED WITH AL2O3 PARTICLES FOR CAST FILM
Author(s) -
MONIKA MONIKA,
Pradeep Upadhyaya,
Manish Kumar,
Navin Chand
Publication year - 2014
Publication title -
international journal of mechanical and industrial engineering
Language(s) - English
Resource type - Journals
ISSN - 2231-6477
DOI - 10.47893/ijmie.2014.1191
Subject(s) - materials science , high density polyethylene , ultimate tensile strength , composite material , tear resistance , izod impact strength test , extrusion , scanning electron microscope , plastics extrusion , composite number , optical microscope , transmittance , polyethylene , optoelectronics
In this present work, study of mechanical and optical properties of PP/HDPE/EVA/PLA (80/20/5/4) blend reinforced with nano alumina (Al2O3) particles is investigated. In the production process co-rotating twin screw extruder are utilized. Reinforced films are produced with 0.5, 1, 1.5 and 2 phr Al2O3 contents .The screw speed of the extruder is maintained at 150 rpm. After post extrusion, cast films are prepared. Mechanical performance analysis are done in order to examine the change in tensile strength, burst strength, tear strength and kinetic coefficient of friction of the polymeric films. Optical properties are performed for obtaining the data of haze and transmittance. The morphology is studied by Scanning Electron Microscopy (SEM). These results are related to the Al2O3 dispersion, to the type of the different composite formulations with PP/HDPE/EVA/PLA polymer matrix. It has been found that at 0.5 Phr loading of Al2O3 in PP/HDPE/EVA/PLA (80/20/5/4) blend has shown the highest burst and tear strength. On the other hand, the tensile strength shows decreasing order on Al2O3 loading 0.5 to 2 phr. Optical properties such as maximum value of transmittance and haze are also observed as loading of 0.5 Phr of Al2O3 in PP/HDPE/EVA/PLA (80/20/5/4) blend. KeywordsNanocomposite; Mechanical properties; Optical properties; Film extrusion; Melt blending; nano alumina; morphological study.
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