Electrical and mechanical properties of carbon black filled ethylene propylene rubber during thermal oxidation aging

2004 ◽  
Author(s):  
Yangyang Sun ◽  
Shijian Luo ◽  
C.P. Wong
Keyword(s):  
Mechanical Properties ◽  
Carbon Black ◽  
Thermal Oxidation ◽  
Ethylene Propylene ◽  
Ethylene Propylene Rubber

Effect of the vulcanizing system on the mechanical properties of butyl rubber/ethylene propylene diene monomer-carbon black blends

2003 ◽  
Vol 90 (6) ◽  
pp. 1539-1544 ◽  
Author(s):  
F. Abd-El Salam ◽  
M. H. Abd-El Salam ◽  
M. T. Mostafa ◽  
M. R. Nagy ◽  
M. I. Mohamed
Keyword(s):  
Mechanical Properties ◽  
Carbon Black ◽  
Butyl Rubber ◽  
Ethylene Propylene Diene Monomer ◽  
Ethylene Propylene

New Vulcanizing Agents for Ethylene-Propylene Elastomers. II

1962 ◽  
Vol 35 (4) ◽  
pp. 1091-1100
Author(s):  
Peter E. Wei ◽  
John Rehner
Keyword(s):  
Zinc Oxide ◽  
Iron Oxide ◽  
Carbon Black ◽  
Periodic System ◽  
Chemical Diversity ◽  
Complex Behavior ◽  
Iron Compounds ◽  
Ethylene Propylene ◽  
Ethylene Propylene Rubber

Abstract In searching for new vulcanizing systems for ethylene-propylene elastomers, we have found several more classes of active agents, heretofore undisclosed. They are: (a) perhaloalkanes and some polyhaloalkanes; (b) polyhalocycloalkenes; and (c) poly-N-halobenzoguanamines. Specific examples are: hexachloroethane, octachloropropane, octachlorocyclopentene, perchlorofulvalene, and N,N,N′,N′-tetrachlorobenzoguanamine. These agents are all effective in ethylene-propylene rubber, and some are capable of vulcanizing polyethylene, polypropylene, polyisobutylene, butyl, and highly unsaturated rubbers and their blends. The agents are most effective in the presence of sulfur. All are active in carbon black stocks, and at least some are active in mineral-filled and oil-extended stocks. Some of the vulcanizing agents can be accelerated by certain oxides and salts of metals widely distributed over the periodic system. Among the most active accelerators are iron compounds, such as iron tallate, stearate, naphthenate, octoate, and oxalate, and corresponding combinations of iron oxide and the free acids. These accelerators are antagonized by the presence of zinc oxide. The chemical diversity of these classes of vulcanizing agents and the complex behavior of the accelerators mentioned preclude an explanation of the vulcanization chemistry at this time.

Electrical Conductivity of Polystyrene-Rubber Blends Loaded with Carbon Black

1997 ◽  
Vol 70 (1) ◽  
pp. 60-70 ◽  
Author(s):  
B. G. Soares ◽  
F. Gubbels ◽  
R. Jéro^me ◽  
E. Vanlathem ◽  
R. Deltour
Keyword(s):  
Electrical Conductivity ◽  
Carbon Black ◽  
Percolation Threshold ◽  
Chemical Structure ◽  
Two Phase ◽  
Ethylene Propylene ◽  
Rubber Blends ◽  
Ethylene Propylene Rubber

Abstract Polystyrene/rubber blends have been loaded with carbon black (CB) and the filler localization in the two-phase polyblends has been studied in relation to the chemical structure of the rubber. The CB localization and the electrical conductivity are greatly influenced by the substitution of the rubber chains. In polystyrene/polybutadiene blends, the filler is localized within the polybutadiene phase. In contrast, in polystyrene/polyisoprene and polystyrene/ethylene—propylene rubber (EPM) blends, CB is mainly localized at the interface, so that the CB percolation threshold in cocontinuous two-phase polyblends is dramatically decreased.

scholarly journals EFFECTS OF SEVERAL FACTORS ON ANTI–VIBRATION ABILITY OF EPDM RUBBER

2018 ◽  
Vol 55 (1B) ◽  
pp. 202
Author(s):  
Phan Quoc Phu
Keyword(s):  
Mechanical Properties ◽  
Carbon Black ◽  
Compressive Stress ◽  
Shore Hardness ◽  
Epdm Rubber ◽  
Ethylene Propylene ◽  
Synthetic Rubber

In this research, ethylene–propylene–diene (EPDM) rubber, a type of synthetic rubber with excellent anti–vibration and anti–noise properties, was studied for the application in anti–vibration pads. Via changes in the concentration of substances in the mixtures such as carbon black, triethanolamine (TEA) and sulfur, the mechanical properties and the anti–vibration efficiency of the EPDM rubber samples were determined using mechanical tester. As a result, the EPDM rubber samples containing about 45 % of carbon black N330, 1 % of TEA and 1 % of sulfur showed some good results including the shore hardness about 62 A, the compressive stress at peak of 1.04 N/mm2 and the anti–vibration efficiency approximately 72 %.

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