Impact testing of polypropylene blends and composites

B. Pukánszky, F. H J Maurer, J. W. Boode

Research output: Contribution to journalArticle

27 Citations (Scopus)

Abstract

Polypropylene (PP) composites containing 0-30 vol% of talc filler, in addition to blends modified with an ethylene-propylene copolymer (EPR) elastomer were prepared and their fracture resistance was determined by the standard Izod impact test and by a fracture mechanics technique. Effects of composition, type of modification, specimen size, and temperature were studied. The validity of linear elastic fracture mechanics (LEFM) conditions were checked. It was shown that under the conditions applied, they can be satisfied even with specimens of reasonable size (4×10× 80 mm) prepared by conventional processing techniques. Calculations of minimum specimen thickness must be carried out, with material properties obtained under the conditions of impact. For heterogeneous blends and composites yield stress should be corrected for the effect of decreasing load-bearing cross section. Linearity of the fracture energy (U) vs. BDφ or U vs. B(D-α) plots is not a proof for either elastic or plastic fracture. The composition dependence of fracture properties proved to be practically independent of specimen size, temperature, or measurement technique.

Original languageEnglish
Pages (from-to)1962-1971
Number of pages10
JournalPolymer Engineering and Science
Volume35
Issue number24
Publication statusPublished - Dec 1995

Fingerprint

Impact testing
Polypropylenes
Fracture mechanics
Bearings (structural)
Elastomers
Talc
Fracture energy
Composite materials
Chemical analysis
Propylene
Yield stress
Fillers
Fracture toughness
Materials properties
Ethylene
Copolymers
Plastics
Temperature
Processing
propylene

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Materials Chemistry
  • Polymers and Plastics

Cite this

Pukánszky, B., Maurer, F. H. J., & Boode, J. W. (1995). Impact testing of polypropylene blends and composites. Polymer Engineering and Science, 35(24), 1962-1971.

Impact testing of polypropylene blends and composites. / Pukánszky, B.; Maurer, F. H J; Boode, J. W.

In: Polymer Engineering and Science, Vol. 35, No. 24, 12.1995, p. 1962-1971.

Research output: Contribution to journalArticle

Pukánszky, B, Maurer, FHJ & Boode, JW 1995, 'Impact testing of polypropylene blends and composites', Polymer Engineering and Science, vol. 35, no. 24, pp. 1962-1971.
Pukánszky, B. ; Maurer, F. H J ; Boode, J. W. / Impact testing of polypropylene blends and composites. In: Polymer Engineering and Science. 1995 ; Vol. 35, No. 24. pp. 1962-1971.
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