Skip navigation
Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/2342
Title: Influence of film preparation procedures on the crystallinity, morphology and mechanical properties of LLDPE films
Authors: Kundu P.P.
Biswas J.
Kim H.
Choe S.
Published in: European Polymer Journal
Abstract: Influence of various film preparation procedures on the crystallinity, morphology and mechanical properties of pure linear low-density polyethylene and its calcite filled composite films has been studied using differential scanning calorimeter (DSC), wide-angle X-ray diffractometer (WAXRD), atomic force microscope (AFM) and ultimate tensile testing machine (UTM). The film preparation procedures include variation in cooling rates such as quenching, force (fan) and natural cooling and in techniques such as extrusion followed by melt squeezing and compression molding. The heat of fusion (from DSC), the degree of crystallinity (from WAXRD) and the crystallite size (from WAXRD and AFM) are found to be the highest for naturally cooled specimen, followed by fan cooled and quenched ones. The AFM images of surface topology exhibit stacked lamellar morphology for forcefully cooled (fan cooled and quenching) samples and spherulitic 'lozenges' for naturally cooled ones. The Young's modulus and yield stress (from UTM) are the highest for naturally cooled samples, followed by fan cooled and quenched ones. Amongst the calcite filled composites, the 'base film', which is prepared by extrusion followed by melt squeezing and natural cooling, exhibits the lowest heat of fusion, degree of crystallinity and Young's modulus, but the highest yield stress, elongation at break and tensile strength compared to the compression molded ones. © 2003 Elsevier Ltd. All rights reserved.
Citation: European Polymer Journal (2003), 39(8): 1585-1593
URI: https://doi.org/10.1016/S0014-3057(03)00056-9
http://repository.iitr.ac.in/handle/123456789/2342
Issue Date: 2003
Keywords: Base film
Fan and natural cooled
Quenching
Spherulites
Stacked lamellar
ISSN: 143057
Author Scopus IDs: 35475516300
35549158900
57191032808
35214517100
Author Affiliations: Kundu, P.P., Department of Chemical Engineering, Inha University, Inchon 402-751, South Korea, Department of Chemical Technology, SLIET, Longowal, Sangrur 148106, India
Biswas, J., Department of Chemical Engineering, Inha University, Inchon 402-751, South Korea
Kim, H., Department of Chemical Engineering, Inha University, Inchon 402-751, South Korea
Choe, S., Department of Chemical Engineering, Inha University, Inchon 402-751, South Korea
Funding Details: This work is supported by the grant number R01-2001-00432 by KOSEF. S. Choe expresses her gratitude to Inha University for providing partial financial support by the grant No. Inha- 21647.
Corresponding Author: Kundu, P.P.; Department of Chemical Engineering, Inha University, Inchon 402-751, South Korea; email: ppk923@yahoo.com
Appears in Collections:Journal Publications [CH]

Files in This Item:
There are no files associated with this item.
Show full item record


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.