scholarly journals Development of thermoplastic elastomers based on maleated ethylene propylene rubber (m-EPM) and polypropylene (PP) by dynamic vulcanization

2007 ◽  
Vol 1 (8) ◽  
pp. 527-534 ◽  
Author(s):  
K. Chatterjee ◽  
K. Naskar
Keyword(s):  
Thermoplastic Elastomers ◽  
Dynamic Vulcanization ◽  
Ethylene Propylene ◽  
Ethylene Propylene Rubber

Translucent Thermoplastic Elastomers

2009 ◽  
Vol 82 (1) ◽  
pp. 94-103
Author(s):  
Maria D. Ellul ◽  
D. R. Hazelton
Keyword(s):  
Thermal Stability ◽  
Thermoplastic Elastomer ◽  
Thermoplastic Elastomers ◽  
New Materials ◽  
Dynamic Vulcanization ◽  
Ethylene Propylene ◽  
Fluid Delivery ◽  
Compression Set ◽  
Ethylene Content

Abstract Thermoplastic elastomer vulcanizates, TPVs, having the property of optical translucence have been prepared by dynamic vulcanization. The new materials are based on a polypropylene homopolymer principally containing propylene units of exactly alternating configuration and having a syndiotactic pentad fraction of at least 0.86. The dispersed elastomer phase consists of a crosslinked ethylene propylene copolymer rubber having an ethylene content of at least 74 weight %. These thermoplastic elastomer compositions have significantly lowered Gardner haze values, while maintaining the desirable properties of low compression set and thermal stability. The compositions have utility in molded mechanical rubber goods as well as extruded articles for fluid delivery applications.

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