Influence of Curing Systems on Mechanical, Dynamic, and Morphological Properties of Dynamically Cured Epoxidized Natural Rubber/ Copolyamide Blends

Abstract:

Thermoplastic elastomers (TPEs) based on dynamically cured epoxidized natural rubber/copolyamide (ENR/COPA) blends were prepared. Influence of curing systems (i.e., sulphur, peroxide, mixed sulphur and peroxide and phenolic resin cured systems on mechanical, dynamic and morphological properties of the blends were investigated. It was found that the blend with phenolic cured system exhibited superior mechanical and set properties. That is higher tendency to recover to its original shape after a prolong extension. It was also found that the blend with peroxide cured system exhibited higher storage modulus and complex viscosity than those of the blends with mixed sulphur and peroxide, phenolic and sulphur cured system, respectively. Furthermore, the TPVs blend with peroxide cured system showed the smallest vulcanized rubber particles.

• Periodical: Advanced Materials Research (Volume 844)
• Pages: 81-84
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.844.81
• Online since: November 2013
• Authors: Rawviyanee Romin, Charoen Nakason, Anoma Thitithammawong
• Keywords: Blend, Copolyamide, Curing System, Epoxidized Natural Rubber (ENR), Thermoplastic Elastomer

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