Chemical and mechanical properties analysis of extruded polyvinyl choloride (PVC)/sepiolite composite

Authors : Mustafa Özgür ÖTEYAKA, Hasan Candan ÖTEYAKA

Pages : 633-640

Doi:10.16984/saufenbilder.464841

View : 18 | Download : 8

Publication Date : 2019-08-01

Article Type : Research Paper

Abstract :In this study, poly vinyl chloride insert ignore into journalissuearticles values(PVC);/ sepiolite composites were produced using an extruder. Two different sepiolite powders: white and gray were added to the PVC in order; 5 wt.%, 10 wt.%, 15 wt.% and 20 wt.%. The morphology alteration, chemical behavior and mechanical properties of the powders and the composites were examined by X-ray fluorescence insert ignore into journalissuearticles values(XRF);, tensile test, X-ray diffraction insert ignore into journalissuearticles values(XRD);, Fourier transform infrared spectroscopy insert ignore into journalissuearticles values(FTIR);, scanning electron microscopy insert ignore into journalissuearticles values(SEM); and ultimate tensile strength insert ignore into journalissuearticles values(UTS);. The results showed that the sepiolite white powder had 20.72 wt.% CaO and approximately half of the 20.81 wt.% SiO2 as compared to the sepiolite gray powder. The XRD analysis confirmed that the structure of calcined white sepiolite contained dolomite, while gray calcined-sepiolite contained zeolite. The composites with 5 wt.% sepiolite white or gray powders exhibited higher tensile strength. Increasing the quantity of both sepiolite powders in the composites deteriorated the surface with cracks and shifted the thermal degradation of the sepiolite gray toward higher temperatures. 
Keywords : sepiolite, poly vinyl chloride PVC, , composite, planetary micro mill