Enhancement of mechanical properties of polypropylene by blending with styrene-(ethylene-butylene)-styrene tri-block copolymer

Aleksey D. Drozdov, Catalina Gabriela Sanporean, Jesper C. De Christiansen

Research output: Contribution to journalArticlepeer-review

6 Scopus citations

Abstract

Observations are reported in impact tests, uniaxial tensile tests with various strain rates, relaxation tests with various strains and cyclic tests with a mixed deformation program and various maximum strains per cycle on neat polypropylene (PP) and a blend of PP with styrene-(ethylene-butylene)-styrene copolymer (SEBS). Experimental data demonstrate a pronounced enhancement of impact resistance of PP due to the presence of an impact modifier, accompanied by improvement of its properties under low-speed loading, observed as a decrease in relaxation rate and residual strain under cyclic deformation. Material constants in constitutive equations are determined by matching the experimental data. Correlations are established between changes in the viscoelastoplastic response of PP and evolution of its microstructure induced by the presence of an impact modifier.

Original languageEnglish
Pages (from-to)765-774
Number of pages10
JournalJournal of Polymer Engineering
Volume34
Issue number8
DOIs
StatePublished - 1 Oct 2014
Externally publishedYes

Keywords

  • Blends
  • Mechanical properties
  • Modeling
  • Polypropylene

Fingerprint

Dive into the research topics of 'Enhancement of mechanical properties of polypropylene by blending with styrene-(ethylene-butylene)-styrene tri-block copolymer'. Together they form a unique fingerprint.

Cite this