Structural, viscoelastic, and vulcanization study of sponge ethylene-propylene-diene monomer composites with various carbon black loadings

2013 ◽  
Vol 131 (1) ◽  
pp. n/a-n/a ◽  
Author(s):  
M. Arshad Bashir ◽  
Nadeem Iqbal ◽  
Mohammad Shahid ◽  
Quratulain ◽  
Riaz Ahmed
Keyword(s):  
Carbon Black ◽  
Ethylene Propylene Diene Monomer ◽  
Ethylene Propylene

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

Electrochemical degradation tests on a carbon-black-filled ethylene propylene diene monomer rubber under tensile strain

2017 ◽  
Vol 232 (2) ◽  
pp. 200-211
Author(s):  
Seung-Wook Han ◽  
Nak-Sam Choi
Keyword(s):  
Carbon Black ◽  
Life Prediction ◽  
Tensile Strain ◽  
Experimental Simulation ◽  
Ethylene Propylene Diene Monomer ◽  
Electrochemical Degradation ◽  
Ethylene Propylene ◽  
Automotive Engine ◽  
Accelerated Life Tests ◽  
Coolant Water

Rubber hoses play an important role as a path for carrying the coolant liquid between the radiator and the automotive engine. However, the rubber hoses are apt to deteriorate because of the formation of a galvanic circuit between the rubber hose, the coolant water and the fitting metal part of the engine. Such electrochemical degradation can damage the inner skin of the hose in contact with the coolant liquid heated by the working engine, which often leads to leakage of the coolant water and thereby to hose failure. An ethylene propylene diene monomer rubber has mostly been utilized as the material for the coolant hoses of automotive engines because of the strong resistance to various environmental stresses. This study conducted experimental simulation tests and evaluation of the electrochemical degradation behaviours of the carbon-black-filled ethylene propylene diene monomer rubber used for the coolant hoses. The tests were performed by considering the actual circumstances together with the combined thermal, tensile strain and electrostatic voltage loadings on the rubber hoses. The behaviour of the change in the electrical resistance of a specimen and, thus, the apparent decrease in the current were analysed quantitatively. An Arrhenius life prediction by using the decrease in the current was reasonably expressed for the accelerated life tests. Many microhole networks were thus formed in the skin part of the specimen by the microbreaks in the carbon-black phase and the scission of the sulphur cross-links. The coolant liquid penetrated significantly into the skin, which resulted in a considerable swelling of the skin. The larger the strain application to the rubber, the lower are the strength and the elongation at the breaking point. An exponential index parameter can represent quantitatively the behaviours of the decreases in the mechanical properties used for accurate life prediction.

Elastomeric composites based on ethylene-propylene-diene monomer rubber and conducting polymer-modified carbon black

2009 ◽  
Vol 30 (7) ◽  
pp. 897-906 ◽  
Author(s):  
S.C. Domenech ◽  
L. Bendo ◽  
D.J.S. Mattos ◽  
N.G. Borges ◽  
V. Zucolotto ◽  
...  
Keyword(s):  
Carbon Black ◽  
Conducting Polymer ◽  
Ethylene Propylene Diene Monomer ◽  
Ethylene Propylene ◽  
Elastomeric Composites
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