Poly(vinyl chloride)-paste/clay nanocomposites: Investigation of thermal and morphological characteristics

Abstract

Příspěvek se zaměřuje na PVC pastu plněnou nano-plnivem. Jako nano-plnivo byl použit MMT a to jak ve formě chemicky upravené, tak i neupravené. Teplotní degradace byla charakterizována pomocí metod FTIR, Congo Red, TGA. Morfologie byla hodnocena na základě TEM a XRD. Na základě výsledků lze konstatovat, že typ použitého jílu má zásadní vliv na výsledné vlastnosti celého systému.

The paper concentrates on poly(vinyl chloride) # PVC # from the point of nanocomposites characterisation through thermal degradation of samples, evolution of the changes caused by elevating temperature using TGA, FTIR and Congo Red methods combined with morphological characterisation by XRD and TEM analyses. A novel method of PVC-paste/nanocomposite preparation while processing was used. During preparation, PVC plasticizer was mixed with clay, both natural and organophilic, and the suspension was then compounded with the other components. Two factors were followed: effect of shearing alone, and in combination with temperature. As is presented, the type of nano-filler and its chemical modifier have obvious influence on final properties either thermal or morphological. Presented contribution follows previous part of investigation and brings further information from PVC/nanocomposite field.