Structure property relationship studies of Halloysite Nanotubes (HNTs) filled ABS/PVC blends and its composites

Abstract

In present work, Acrylonitrile-butadiene-styrene copolymer (ABS) and Poly Vinyl Chloride (PVC) polymers are blended with injection molding technique. In order to impart better properties to ABS/PVC blend, HNTs at different concentration like (0, 0.5, 1, 1.5 and 2wt. %) are added. To obtain best results the percentage concentration of PVC is maintained at 10 % in ABS. The
results of this work showed that due to addition of HNTs up to 1.5 wt. % improved tensile and impact properties by 71.73 % and 32.6 % respectively. Addition of HNTs also show improved thermal stability of composites which is explained by the support of DSC. ABS/PVC composites will find applications in the piping and electrical insulation systems. The surface properties of HNTs can be surely changed with the help of PEI. Modified halloysite have successfully incorporated in Acrylnitrile-Butadiene-Styrene copolymer (ABS) and Poly Vinyl Chloride (PVC) blends with the help of injection moulding machine, by melt mixing process. The 90/10 ABS/PVC blends exhibited good especially at 1.5 wt % addition of m-HNTs. There was measurable difference in mechanical properties like tensile and impact strength of prepared composites, 74.76 % and 36.88 % respectively. However, it was also observed that thermal stability of the prepared blends in addition of m- HNTs was improved hand in hand which is explained by
DSC. The m-HNTs filled 90/10 wt% ABS/PVC can be used in different areas like pipe fittings, electric applications, automobile etc.