Influence of the clay modification and compatibilizer on the structure and mechanical properties of ethylene-propylene-diene rubber/montmorillonite composites

2004 ◽  
Vol 92 (1) ◽  
pp. 638-646 ◽  
Author(s):  
Hua Zheng ◽  
Yong Zhang ◽  
Zonglin Peng ◽  
Yinxi Zhang
Keyword(s):  
Mechanical Properties ◽  
Ethylene Propylene ◽  
Clay Modification ◽  
Ethylene Propylene Diene Rubber ◽  
Diene Rubber

Preparation and Properties of Ethylene Propylene Diene Rubber/SiO2/Carbon Nanotubes Composites

2017 ◽  
Vol 1142 ◽  
pp. 201-205 ◽  
Author(s):  
Jun Su ◽  
Cai Hong Li
Keyword(s):  
Mechanical Properties ◽  
Carbon Nanotubes ◽  
Tensile Strength ◽  
Color Change ◽  
Ethylene Propylene ◽  
Total Color Change ◽  
Ethylene Propylene Diene Rubber ◽  
Diene Rubber

This paper studies how the addition of Carbon nanotubes (CNT) influencing the properties, especially the mechanical properties and colorimetry of ethylene propylene diene rubber (EPDM)/SiO2 composites. The results show that the increased content of CNT can turn EPDM/SiO2 composites from lighter, redder, and yellower to darker, greener and bluer, respectively. The total color change (ΔE) of EPDM/SiO2 composites would be acceptable when the CNT content is below 3%. When the CNTs content reaches 4%, the tensile strength of EPDM is the maximum.

scholarly journals Compatibilization of Poly(Lactic Acid) (PLA) and Bio-Based Ethylene-Propylene-Diene-Rubber (EPDM) via Reactive Extrusion with Different Coagents

Polymers ◽  
2020 ◽  
Vol 12 (3) ◽  
pp. 605
Author(s):  
Alexander Piontek ◽  
Oscar Vernaez ◽  
Stephan Kabasci
Keyword(s):  
Mechanical Properties ◽  
Particle Size ◽  
Lactic Acid ◽  
Reactive Extrusion ◽  
Poly Lactic Acid ◽  
Ethylene Propylene ◽  
Twin Screw ◽  
Ethylene Propylene Diene Rubber ◽  
Poly Ethylene ◽  
Diene Rubber

Much effort has been made to enhance the toughness of poly (lactic acid) (PLA) to broaden its possible range of usage in technical applications. In this work, the compatibility of PLA with a partly bio-based ethylene-propylene-diene-rubber (EPDM) through reactive extrusion was investigated. The concentration of EPDM in the PLA matrix was in the range of up to 20%. The reactive extrusion was carried out in a conventional twin-screw extruder. Contact angle measurements were performed to calculate the interfacial tension and thus the compatibility between the phases. The thermal and mechanical properties as well as the phase morphology of the blends were characterized. A copolymer of poly (ethylene-co-methyl acrylate-co-glycidyl methacrylate) (EMAGMA) was used as compatibilizer, which leads to a significant reduction in the particle size of the dispersed rubber phase when compared with the blends without this copolymer. The use of EMAGMA combined with soybean oil (SBO) and a radical initiator enhances the elongation at break of the compound. The results indicate that the reduction of the particle size of the dispersed phase obtained with the compatibilizer alone is not sufficient to improve the mechanical properties of the blend system. The induced radical reactions also influenced the mechanical properties of the blend significantly.

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