Influences of blend proportions and curing systems on dynamic, mechanical, and morphological properties of dynamically cured epoxidized natural rubber/high-density polyethylene blends

2008 ◽  
Vol 49 (2) ◽  
pp. 281-292 ◽  
Author(s):  
Charoen Nakason ◽  
Methakarn Jarnthong ◽  
Azizon Kaesaman ◽  
Suda Kiatkamjornwong
Keyword(s):  
Natural Rubber ◽  
High Density Polyethylene ◽  
High Density ◽  
Epoxidized Natural Rubber ◽  
Morphological Properties ◽  
Dynamic Mechanical ◽  
Polyethylene Blends ◽  
Curing Systems

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

2013 ◽  
Vol 844 ◽  
pp. 81-84 ◽  
Author(s):  
Rawviyanee Romin ◽  
Charoen Nakason ◽  
Anoma Thitithammawong
Keyword(s):  
Natural Rubber ◽  
Storage Modulus ◽  
Phenolic Resin ◽  
Complex Viscosity ◽  
Thermoplastic Elastomers ◽  
Epoxidized Natural Rubber ◽  
Morphological Properties ◽  
Vulcanized Rubber ◽  
Rubber Particles ◽  
Curing Systems

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.

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