Comparative study on mechanical, thermal, viscoelastic and rheological properties of vulcanised EPDM rubber

Date

2010-07-01

Author

Çavdar, Şeyma
Ozdemir, T.
Usanmaz, Ali

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

262
views

0
downloads

In this study, mechanical, thermal and rheological properties of vulcanised ethylene propylene diene monomer (EPDM) rubber containing different amounts of vulcanising agent, filler, paraffinic oil and stearic acid were compared. Moreover, reaction rate constant of the curing reaction has been calculated from the results of the rheological tests, and relative change of rate constant with the change of additives was studied by a new method. Thermal gravimetric analysis with in situ Fourier transform infrared (FTIR) spectra was taken, and the thermal degradation of the EPDM rubber was observed for varying amounts of vulcanising agent and filler content. Although the vulcanising agent improved the mechanical properties of the EPDM initially, a further increase in the vulcanising agents deteriorated the mechanical properties. Attenuated total reflectance FTIR spectrum confirmed the decrease in the relative degree of cross-linking with the increase in the vulcanising agent content to 10 h(-1). Moreover, attenuated total reflectance FTIR spectra reaffirmed that cross-linking density increases with carbon black content. In situ FTIR spectra showed that the thermo-oxidative stability increased with the increase in filler content.

Subject Keywords

Materials Chemistry, General Chemical Engineering, Polymers and Plastics, Ceramics and Composites

URI

https://hdl.handle.net/11511/57318

Journal

PLASTICS RUBBER AND COMPOSITES

DOI

https://doi.org/10.1179/174328910x12647080902970

Collections

Graduate School of Informatics, Article

Suggestions

OpenMETU
Core

Influences of three different ethylene copolymers on the toughness and other properties of polylactide MEYVA, YELDA; Kaynak, Cevdet (Informa UK Limited, 2016-01-01) The aim of this study was to investigate influences of three different ethylene copolymers on the toughness and other properties of very brittle biopolymer PLA (polylactide). For this aim, PLA was melt blended by twin-screw extruder with various amounts of ethylene vinyl acetate (EVA), ethylene-methyl-acrylate (EMA) and ethylene-n-butyl acrylate-glycidyl-methacrylate (EBA-GMA). SEM and DSC analyses indicated that these ethylene copolymers were thermodynamically immiscible with phase separation in the form o...
Impact modified polyamide-6/organoclay nanocomposites: Processing and characterization Isik, Isil; YILMAZER, ÜLKÜ; Bayram, Göknur (Wiley, 2008-02-01) The effects of melt state compounding of ethylene-butyl acrylate-maleic anhydride (E-BA-MAH) terpolymer and/or three types of organoclays (Cloisitel(R) 15A, 25A, and 3013) on thermal and mechanical properties and morphology of polyamide-6 are investigated. E-BA-MAH formed spherical domains in the materials to which it is added, and increased the impact strength, whereas the organoclays decreased the impact strength. In general, the organoclays increased the tensile strength (except for Cloisite 15A), Young'...
Reactive extrusion of poly(ethylene terephthalate)-(ethylene/methyl acrylate/glycidyl methacrylate)-organoclay nanocomposites Alyamac, Elif; Yılmazer, Ülkü (Wiley, 2007-04-01) This study was conducted to investigate the effects of component concentrations and addition order of the components on the final properties of ternary nanocomposites composed of poly(ethylene terephthalate), organoclay, and an ethylene-methyl acrylate-glycidyl methacrylate (E-MA-GMA) terpolymer acting as an impact modifier for PET. In this context, first, the optimum amount of the impact modifier was determined by melt compounding binary PET-terpolymer blends in a corotating twin-screw extruder. The amount...
Polypyrrole grafts synthesized via electrochemical polymerization Balci, N; Toppare, Levent Kamil; Akbulut, Ural; Stanke, D; Hallensleben, ML (Informa UK Limited, 1998-01-01) Electrically conducting polypyrrole grafts with poly[(methyl meth acrylate)-co-(2-(N-pyrrolyl) ethyl methacrylate)] (PMMA-co-PEMA) were synthesized by constant potential electrolysis. Cyclic Voltammetry, DSC, TGA, SEM and elemental analysis were used in order to characterize the free standing films. Conductivities of the polymers were measured by a four-probe technique.
Influence of Zinc Oxide on Thermoplastic Elastomer-Based Composites: Synthesis, Processing, Structural, and Thermal Characterization ÇELEBİ, HANDE; Bayram, Göknur; DOĞAN, AYDIN (Wiley, 2016-08-01) It was aimed to investigate how thermal conductivity and stability properties of synthesized thermoplastic elastomers were influenced by zinc oxide (ZnO) additives which differed in size and surface treatment. ZnO particles were prepared by the homogeneous precipitation method by mixing aqueous solutions of hexamethylenetetramine (HMT) and zinc nitrate. The obtained particles were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), and transmission electron microscopy (TEM). Poly(v...

Citation Formats

Ş. Çavdar, T. Ozdemir, and A. Usanmaz, “Comparative study on mechanical, thermal, viscoelastic and rheological properties of vulcanised EPDM rubber,” PLASTICS RUBBER AND COMPOSITES, pp. 277–282, 2010, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/57318.