Thermoplastic elastomers based on recycled high-density polyethylene, ethylene-propylene-diene monomer rubber, and ground tire rubber

O. P. Grigoryeva, A. M. Fainleib, A. L. Tolstov, O. M. Starostenko, E. Lievana, J. Karger-Kocsis

Research output: Contribution to journalArticle

91 Citations (Scopus)

Abstract

High-performance thermoplastic elastomers (TPEs), based on recycled high-density polyethylene (HDPER), olefinic type ethylene-propylene- diene monomer rubber (EPDM), and ground tire rubber (GTR) treated with bitumen, were prepared by using dynamic vulcanization technology, and their structure-property relationships were investigated. It was established that special pretreatment of GTR by bitumen confers outstanding mechanical properties on the resulting TPEs. TPEs, containing GTR pretreated by bitumen, exhibit thermal behavior similar to that of the HDPER/EPDM basic blend in the temperature region up to about 340°C. Rheological measurements showed that bitumen acts as an effective plasticizer for the GTR-containing TPEs. SEM, DSC, and DMTA results revealed improved adhesion between the particles of GTR treated by bitumen and the surrounding thermoplastic matrix, compared to that of the untreated GTR particles. It was concluded that bitumen acts as an effective devulcanizing agent in the GTR treatment stage. In the following steps of TPE production, bitumen acts simultaneously as a curing agent for the rubber components (EPDM/GTR) and as a compatibilizer for the blend components. GTR-containing TPEs, prepared by extrusion technology, were reprocessed (by passing through the extruder six times) without any observable changes in their tensile properties, thermal stability, and melt viscosity.

Original languageEnglish
Pages (from-to)659-671
Number of pages13
JournalJournal of Applied Polymer Science
Volume95
Issue number3
DOIs
Publication statusPublished - Feb 5 2005

Fingerprint

asphalt
Thermoplastic elastomers
Rubber
Polyethylene
High density polyethylenes
Tires
Propylene
Ethylene
Monomers
ethylene-propylene-diene-monomer
Plasticizers
Vulcanization
Compatibilizers
Extruders
Tensile properties
Thermoplastics
Extrusion
Curing

Keywords

  • Bitumen
  • Compatibilization
  • Ground tire rubber (GTR)
  • Recycling
  • Thermoplastics

ASJC Scopus subject areas

  • Polymers and Plastics

Cite this

Thermoplastic elastomers based on recycled high-density polyethylene, ethylene-propylene-diene monomer rubber, and ground tire rubber. / Grigoryeva, O. P.; Fainleib, A. M.; Tolstov, A. L.; Starostenko, O. M.; Lievana, E.; Karger-Kocsis, J.

In: Journal of Applied Polymer Science, Vol. 95, No. 3, 05.02.2005, p. 659-671.

Research output: Contribution to journalArticle

Grigoryeva, O. P. ; Fainleib, A. M. ; Tolstov, A. L. ; Starostenko, O. M. ; Lievana, E. ; Karger-Kocsis, J. / Thermoplastic elastomers based on recycled high-density polyethylene, ethylene-propylene-diene monomer rubber, and ground tire rubber. In: Journal of Applied Polymer Science. 2005 ; Vol. 95, No. 3. pp. 659-671.
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