Abstract
Various kinds of chlorinated stearic acid esters were prepared to test properties with PVC compounds. As a result the PVC compounds showed marked increase in tensile strength, electrical resistivity and improved properties in oil extraction and volatility tests, as the chlorine content increased. On the other hand, increase in chlorine content tended the compounds less flexible and higher in brittle point temperatures. Increase in carbon number of the alcohols bound to the esters improved the properties of PVC compounds such as in flexibility, in lower brittle point temperature and in less volatility on heating, but other properties of the compounds became inferior such as inn their strength, oil extraction and electrical resistivity as well.
From the above results, methyl pentachloro stearate was found to be most suitable as the plasticizer for PVC.
