Gelation and Fusion of PVC Plastisols with Plasticizers of Varying Solvent Power

N. Nakajima; M. R. Sadeghi

doi:10.3139/217.890016

Article

Gelation and Fusion of PVC Plastisols with Plasticizers of Varying Solvent Power

N. Nakajima and M. R. Sadeghi

Published/Copyright: May 27, 2013

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From the journal International Polymer Processing Volume 4 Issue 1

Abstract

During gelation and fusion process PVC plastisols changes from a suspension of resin particles in a liquid plasticizer to a uniform mass. The manner of change was observed with a scanning electron microscope, SEM. Four different plasticizers varying solvent power were used: they were dioctyl phthalate, dioctyl sebacate, dibutyl sebacate and tricresyl phosphate. Significant differences were observed among different plasticizer systems in a manner of dissolution of PVC into a plasticizer, swelling of PVC particles with a plasticizer and fusing to form a uniform mass. The SEM micrographs are presented with reference to the viscoelastic properties at the corresponding temperature.

* Mail address: Dr. N. Nakajima, Polymer Engineering Center, University of Akron, Akron, Ohio 44325, U. S. A.

Published Online: 2013-05-27

Published in Print: 1989-03-01

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https://doi.org/10.3139/217.890016