Specification for ethylene propylene rubber compounds

1991 ◽  
Keyword(s):  
Ethylene Propylene ◽  
Rubber Compounds ◽  
Ethylene Propylene Rubber

Influence of Vulcanizing System on the Properties of Rubbers Based on Ethylenepropylene Rubber

2021 ◽  
Vol 899 ◽  
pp. 239-244
Author(s):  
Larisa Yuryevna Zakirova
Keyword(s):  
Tensile Strength ◽  
High Temperatures ◽  
Organic Peroxide ◽  
Strength Properties ◽  
Maximum Speed ◽  
Elongation At Break ◽  
Ethylene Propylene ◽  
Rubber Compounds ◽  
Ethylene Propylene Rubber ◽  
Aging In Air

The article investigates the effect of vulcanizing systems of different activity on the vulcanization and elastic-strength properties of rubber compounds based on ethylene-propylene rubber Keltan . Were taken vulcanizing systems: a mixture of organic peroxide, sulfur and sulfenamide accelerator (1); a mixture of organic peroxide, sulfur and dithiodimorpholine (2); a mixture of organic peroxide, sulfur and thiuram accelerator (3); sulfur and sulfenamide accelerator (4). The vulcanization characteristics (maximum and minimum torques; times of onset, optimum and reaching the maximum speed of vulcanization) were evaluated. Elastic-strength (conditional tensile strength, elongation at break, hardness) properties of rubber compounds and operational (changes in conditional tensile strength, elongation at break after aging in air) were determined. It was found that the vulcanizing system (3) containing sulfur, peroxide in an amount of 7.0 parts by weight and thiuram accelerator imparts the best elastic and strength properties to rubber compounds and leads to their resistance to high temperatures.

Electro-Chemical Treeing in Ethylene-Propylene Rubber Compounds

1975 ◽  
Vol 7 (4) ◽  
pp. 456-469 ◽  
Author(s):  
B.S. Bernstein ◽  
N. Srinivas ◽  
J.D. Hogan ◽  
C. Katz
Keyword(s):  
Ethylene Propylene ◽  
Rubber Compounds ◽  
Ethylene Propylene Rubber
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