scholarly journals Thermomechanical devulcanization of ethylene propylene diene monomer rubber and its application in blends with high‐density polyethylene

2020 ◽  
Vol 138 (13) ◽  
pp. 50090
Author(s):  
Dávid Zoltán Pirityi ◽  
Kornél Pölöskei
Keyword(s):  
High Density Polyethylene ◽  
High Density ◽  
Ethylene Propylene Diene Monomer ◽  
Ethylene Propylene

Formulations for thermoplastic vulcanizates based on high density polyethylene, ethylene-propylene-diene monomer, and ground tyre rubber

2011 ◽  
Vol 45 (11) ◽  
pp. 1189-1200 ◽  
Author(s):  
J. Cañavate ◽  
P. Casas ◽  
X. Colom ◽  
F. Nogués
Keyword(s):  
Mechanical Properties ◽  
High Density Polyethylene ◽  
Thermoplastic Elastomers ◽  
High Density ◽  
Ethylene Propylene Diene Monomer ◽  
Good Balance ◽  
Ethylene Propylene ◽  
Thermoplastic Vulcanizates ◽  
Ground Tyre Rubber ◽  
Rubber Phase

Thermoplastic vulcanizates (TPVs) are a specific group of the so called thermoplastic elastomers. The main characteristic is the existence of a crosslinked rubber phase obtained by dynamic vulcanization in the presence of the thermoplastic matrix. This article studies TPVs based on ground tyre rubber (GTR), high-density polyethylene, and ethylene propylene diene monomer rubber. Vulcanization is performed by a new peroxide developed to resist high temperatures and an standard one. The aim of this study is optimize the formulation in order to include GTR, while maintaining a good balance of properties in the final TPV material. The use of GTR would improve the possibilities of recovering tyre waste. A detailed study regarding the influence of each component in the final mechanical properties has been carried out. The swelling properties, ATR infrared spectroscopy, TGA, and DSC analysis indicated a high degree of crosslink and good adhesion between the matrix and the rubber phase. Morphology of the composites was assessed by scanning electron microscopy. A composite containing a combination of peroxides and 40/30/30 of HDPE, EPDM, and GTR was found to show a good balance of characteristics regarding mechanical properties, crosslinking, and adhesion between phases.

Influence of Gamma-Irradiation on Dielectric Properties of Recycled Polyethylene Composites

2007 ◽  
Vol 1038 ◽  
Author(s):  
Ulmas Gafurov ◽  
Zekie Fazilova
Keyword(s):  
Experimental Data ◽  
Dielectric Properties ◽  
Gamma Irradiation ◽  
High Density Polyethylene ◽  
High Density ◽  
Dielectric Losses ◽  
Γ Irradiation ◽  
Ethylene Propylene ◽  
Recycled Polyethylene ◽  
Polyethylene Composites

AbstractThe influence of γ-irradiation on the dielectric losses (tg δ) and permittivity (ε′) of recycled high density polyethylene (HDPER) thermoplastic dynamic vulcanizates (TDV) has been investigated. The materials and composites that were studied include HDPER:EPDM, HDPER+EPDM+GTR, HDPER+EPDM+GTR/plast; EPDM (ethylene-propylene diamine).The experimental data obtained shows significant differences between dielectric properties different samples, as well as between the unirradiated and γ-irradiated samples.

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