RUBBER-ROUGHENING IN POLYPROPYLENE.

B. Z. Jang, Donald R Uhlmann, J. B. Vander Sande

Research output: Contribution to journalArticle

186 Citations (Scopus)

Abstract

The deformation and fracture behavior of several polypropylene (PP) and rubber-modified PP materials have been investigated. Plastic deformation mechanisms of these systems depend upon the test rate and temperature with high rates and low temperatures being in favor of crazing. The second phase morphology with smaller average rubber particle diameter D appears to be more efficient than that with large D in toughening PP. Theoretical calculations indicate that the stresses imposed upon the rubber particles due to volume shrinkage of PP during crystallization are sufficient to compensate for the stresses due to differential thermal contraction in cooling from solidification temperature to end-use temperature. The difference between these two is small, and therefore they provide very little contribution to interfacial adhesion between rubber particle and PP matrix, the adhesion being insufficient for the rubber particles to be effective in controlling craze propagation.

Original languageEnglish (US)
Pages (from-to)2485-2504
Number of pages20
JournalJournal of Applied Polymer Science
Volume30
Issue number6
DOIs
StatePublished - Jun 1985
Externally publishedYes

Fingerprint

Polypropylenes
Rubber
Adhesion
Crazing
Temperature
Toughening
Crystallization
Solidification
Plastic deformation
Cooling

ASJC Scopus subject areas

  • Polymers and Plastics

Cite this

RUBBER-ROUGHENING IN POLYPROPYLENE. / Jang, B. Z.; Uhlmann, Donald R; Vander Sande, J. B.

In: Journal of Applied Polymer Science, Vol. 30, No. 6, 06.1985, p. 2485-2504.

Research output: Contribution to journalArticle

Jang, B. Z. ; Uhlmann, Donald R ; Vander Sande, J. B. / RUBBER-ROUGHENING IN POLYPROPYLENE. In: Journal of Applied Polymer Science. 1985 ; Vol. 30, No. 6. pp. 2485-2504.
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