Multiple morphology in polypropylene/ethylene-propylene-diene terpolymer blends

B. Pukánszky, F. Tüdös, A. Kalló, G. Bodor

Research output: Contribution to journalArticle

83 Citations (Scopus)

Abstract

The morphology of polypropylene/ethylene-propylene-diene terpolymer (PP/EPDM) blends was investigated in the entire composition range by differential scanning calorimetry (d.s.c.), small angle and wide angle X-ray scattering (SAXS, WAXS) and transmission and scanning electron microscopy (TEM, SEM). Only slight changes were observed in the crystalline morphology of PP blends quickly cooled from the melt. On melting and recrystallization at a lower rate, elastomers show β nucleation effect on PP. Above 80 vol% elastomer content crystallization of PP is hindered. Dispersed morphology of the blends shows structural changes as a function of composition: PP is the continuous phase at low and elastomer at high EPDM content; in between a transitional morphology is observed. At high EPDM content, PP is finely dispersed in the statistical copolymer, while it forms large islands in block EPDM.

Original languageEnglish
Pages (from-to)1399-1406
Number of pages8
JournalPolymer (United Kingdom)
Volume30
Issue number8
DOIs
Publication statusPublished - 1989

Fingerprint

Terpolymers
Polypropylenes
Elastomers
Propylene
Ethylene
Transmission electron microscopy
Scanning electron microscopy
Crystallization
X ray scattering
Chemical analysis
Differential scanning calorimetry
Melting
Nucleation
Copolymers
Crystalline materials
ethylene
propylene

Keywords

  • blends
  • crystallization
  • d.s.c.
  • electron microscopy
  • EPDM rubber
  • morphology
  • polypropylene

ASJC Scopus subject areas

  • Organic Chemistry
  • Polymers and Plastics

Cite this

Multiple morphology in polypropylene/ethylene-propylene-diene terpolymer blends. / Pukánszky, B.; Tüdös, F.; Kalló, A.; Bodor, G.

In: Polymer (United Kingdom), Vol. 30, No. 8, 1989, p. 1399-1406.

Research output: Contribution to journalArticle

Pukánszky, B. ; Tüdös, F. ; Kalló, A. ; Bodor, G. / Multiple morphology in polypropylene/ethylene-propylene-diene terpolymer blends. In: Polymer (United Kingdom). 1989 ; Vol. 30, No. 8. pp. 1399-1406.
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