GTR/Thermoplastics Blends: How Do Interfacial Interactions Govern Processing and Physico-Mechanical Properties? - Université de Lorraine Access content directly
Journal Articles Materials Year : 2022

GTR/Thermoplastics Blends: How Do Interfacial Interactions Govern Processing and Physico-Mechanical Properties?

Mohammad Reza Saeb
Paulina Wiśniewska
Agnieszka Susik
  • Function : Author
Łukasz Zedler
Xavier Colom
Javier Cañavate
Agnieszka Tercjak
Krzysztof Formela

Abstract

In this work, GTR/thermoplastics blends (in ratio 50/50 and 75/25 wt.%) were prepared by melt-compounding in an internal mixer. During research, trans-polyoctenamer rubber (TOR), ethylene-vinyl acetate copolymer (EVA), ethylene-octene copolymer (EOC), and linear low-density polyethylene (LLDPE), were used in their thermoplastic phase. Microstructure and processing-performance property interrelationships of the studied materials were investigated by: atomic force microscopy (AFM), scanning electron microscopy (SEM), rubber process analyzer (RPA), Mooney viscometer, plastometer, gas chromatography with mass spectrometry, differential scanning calorimetry (DSC), tensile tests and swelling behavior. In blends of thermoplastics with a high content of GTR (50 and 75 wt.%), the thermoplastic modifier type had a significant impact on the processing behavior and microstructure of blends. In terms of the physico-mechanical properties, the GTR/thermoplastics ratio affected elongation at break, hardness, and density, while its effect on tensile strength was negligible. DSC analysis showed that thermoplastics, as modifiers of GTR, should be considered as binders and not plasticizers, as reflected in the almost constant glass-transition temperature of the blends. RPA measurements indicated higher values of G* and η* for GTR-rich blends. SEM showed a rubber-like interfacial break, while AFM confirmed interfacial contact between GTR and thermoplastics.

Dates and versions

hal-03540425 , version 1 (24-01-2022)

Identifiers

Cite

Henri Vahabi, Mohammad Reza Saeb, Paulina Wiśniewska, Agnieszka Susik, Łukasz Zedler, et al.. GTR/Thermoplastics Blends: How Do Interfacial Interactions Govern Processing and Physico-Mechanical Properties?. Materials, 2022, 15 (3), pp.841. ⟨10.3390/ma15030841⟩. ⟨hal-03540425⟩
23 View
0 Download

Altmetric

Share

Gmail Facebook X LinkedIn More