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

Year 2019, , 633 - 640, 01.08.2019

Mustafa Özgür Öteyaka Hasan Candan Öteyaka

https://doi.org/10.16984/saufenbilder.464841

Cited By: 2

Abstract

In this
study, poly vinyl chloride (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 (XRF), tensile test, X-ray diffraction
(XRD), Fourier transform infrared spectroscopy (FTIR), scanning electron
microscopy (SEM) and ultimate tensile strength (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

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