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Study on the Properties of NBR/CM Blends

Fanwei Zeng

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Abstract

The effects of different blending ratios of NBR and CR on the mechanical properties,aging resistance and oil resistance of NBR/CM vulcanizate cured with peroxides system and sulfur system,respectively,were studied.The results showed that the tensile strength,100% modulus and hardness of the vulcanizate cured with peroxides system all increased with the increase of CM amounts,while the elongation at break,tear strength and compression set all decreased slightly;The changes of the tensile strength,elongation at break and tear strength of NBR/CM vulcanizate cured with sulfur were not big,whiles the 100% modulus and hardness increased,and the compression set decreased.The oil resistant volume change trends of 2 kinds of the vulcanizate were same,and the gasoline resistance of NBR/CM vulcanizate decreased after adding CM,but the alcohol fuel resistance increased.

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What this paper is about

The effects of different blending ratios of NBR and CR on the mechanical properties,aging resistance and oil resistance of NBR/CM vulcanizate cured with peroxides system and sulfur system,respectively,were studied.The results showed that the tensile strength,100% modulus and hardness of the vulcanizate cured with peroxides system all increased with the increase of CM amounts,while the elongation at break,tear strength and compression set all decreased slightly;The changes of the tensile strength,elongation at break and tear strength of NBR/CM vulcanizate cured with sulfur were not big,whiles the 100% modulus and hardness increased,and the compression set decreased.The oil resistant volume change trends of 2 kinds of the vulcanizate were same,and the gasoline resistance of NBR/CM vulcanizate decreased after adding CM,but the alcohol fuel resistance increased.

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Available abstract

The effects of different blending ratios of NBR and CR on the mechanical properties,aging resistance and oil resistance of NBR/CM vulcanizate cured with peroxides system and sulfur system,respectively,were studied.The results showed that the tensile strength,100% modulus and hardness of the vulcanizate cured with peroxides system all increased with the increase of CM amounts,while the elongation at break,tear strength and compression set all decreased slightly;The changes of the tensile strength,elongation at break and tear strength of NBR/CM vulcanizate cured with sulfur were not big,whiles the 100% modulus and hardness increased,and the compression set decreased.The oil resistant volume change trends of 2 kinds of the vulcanizate were same,and the gasoline resistance of NBR/CM vulcanizate decreased after adding CM,but the alcohol fuel resistance increased.

Key concepts: Tear resistance, Compression set, Materials science, Ultimate tensile strength, Elongation, Composite material, Modulus, Vulcanization

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