Tensile Toughness Improvement of Poly(ethyleneco-vinyl acetate)(PEVA) by Incorporation of Hybrid Pre-dispersed O-MMT and Destabilized Bentonite

Joint Conference on Green Engineering Technology & Applied Computing 2019

工业技术（总论）;计算机科学

Fareyhynn Mohammed Fitri, Tuty^1 ; Azlin Fazlina, Osman^1 ; Othman, Rahimah^1^2 ; Anwar Abdul Halim, Khairul^1

Center of Excellence Geopolymer and Green Technology (CEGeoGTech), School of Materials Engineering, Universiti Malaysia Perlis, Perlis

02600, Malaysia^1

School of Bioprocess, Universiti Malaysia Perlis, Arau, Perlis

02600, Malaysia^2

关键词: Biomedical products;    High flexibility;    High strength;    Hybrid nanocomposites;    Melt-compounding;    Nano-fillers;    Poly (ethylene-co-vinyl acetate);    Tensile toughness;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/551/1/012085/pdf
DOI  :  10.1088/1757-899X/551/1/012085

来源: IOP

【 摘 要 】

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.