On sabbatical leave from the Department of Materials Engineering, Technion, Israel.
Impact modification of poly(vinyl chloride) with chlorinated polyethylene II. Irreversible deformation
Version of Record online: 25 AUG 2004
Copyright © 1984 Society of Plastics Engineers, Inc.
Polymer Engineering & Science
Volume 24, Issue 11, pages 877–885, August 1984
How to Cite
Siegmann, A., English, L. K., Baer, E. and Hiltner, A. (1984), Impact modification of poly(vinyl chloride) with chlorinated polyethylene II. Irreversible deformation. Polym Eng Sci, 24: 877–885. doi: 10.1002/pen.760241107
- Issue online: 25 AUG 2004
- Version of Record online: 25 AUG 2004
The mechanical behavior of chlorinated polyethylene (CPE)-modified poly(vinyl chloride) (PVC) has been determined. The nature of the irreversible deformation processes which are responsible for mechanical energy absorption has been investigated by optical and electron microscopic techniques. Addition of CPE results in a decrease in the shear band initiation stress and an increase in void density and stability. The crazing to shear banding transition is observed at a blend composition between 2 and 7 percent CPE at the strain rate employed. It has been established that voiding occurs in the CPE rubber phase. Voiding accounts for at least part of the increased energy absorption of the blend. The stability of the voids to coalescence and fracture is attributed to strong adherence of the CPE to the primary PVC particles.