Open AccessTensile Toughness Improvement of Poly(ethyleneco-vinyl acetate)(PEVA) by Incorporation of Hybrid Pre-dispersed O-MMT and Destabilized Bentonite
Author(s) -
Tuty Fareyhynn Mohammed Fitri,
Azlin Fazlina Osman,
Rahimah Othman,
Khairul Anwar Abdul Halim
Publication year - 2019
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/551/1/012085
Subject(s) - ultimate tensile strength , toughness , compounding , materials science , nanocomposite , ethylene vinyl acetate , composite material , vinyl acetate , copolymer , polymer
Poly (ethylene-co-vinyl acetate) (PEVA) is a biocompatible copolymer, easily processed and designed for intricate biomedical products. However, its toughness; which is the combination of high flexibility and high strength is quite low to resist tearing during long term use in human biological system. In this study, the possibility to enhance the tensile toughness of the PEVA was studied. Several ratios of organically modified MMT and bentonite were used as hybrid nanofillers in the PEVA matrix to form hybrid nanocomposites. Both nanoclays were pre-dispersed and destabilized prior to melt compounding with the PEVA. Results indicated that the use of O-MMT and bentonite in a ratio of 4:1 brought the best increment in the tensile toughness of the PEVA. This could be related to the improved interactions between PEVA with the hybrid nanofillers.