Relation of Crystalline Structure and Mechanical Properties of Nucleated Polypropylene

B. Pukánszky, István Mudra, Peter Staniek

Research output: Contribution to journalArticle

70 Citations (Scopus)

Abstract

Four heterogeneous nucleating agents were added to polypropylene (PP) homo-, block and random copolymers. Melting and crystallization of the polymers were studied by differential scanning calorimetry (DSC), and characteristics derived from the crystallization exotherms were related to the mechanical properties of injection molded bars. A very close correlation was found between the crystallization characteristics and Young's modulus of the polymers. The general correlation proved to be valid for all three polymers studied and also for each nucleating agent The developed empirical correlation makes possible the approximate prediction of stiffness from a simple DSC trace. Further study is needed to give the relationship better physical meaning and to extend it to other mechanical properties.

Original languageEnglish
Pages (from-to)53-57
Number of pages5
JournalJournal of Vinyl and Additive Technology
Volume3
Issue number1
Publication statusPublished - Mar 1997

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Polypropylenes
Crystallization
Polymers
Crystalline materials
Mechanical properties
Differential scanning calorimetry
Melting
Copolymers
Elastic moduli
Stiffness
Polypropylene

ASJC Scopus subject areas

  • Chemistry (miscellaneous)
  • Materials Science (miscellaneous)
  • Materials Chemistry
  • Polymers and Plastics

Cite this

Relation of Crystalline Structure and Mechanical Properties of Nucleated Polypropylene. / Pukánszky, B.; Mudra, István; Staniek, Peter.

In: Journal of Vinyl and Additive Technology, Vol. 3, No. 1, 03.1997, p. 53-57.

Research output: Contribution to journalArticle

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