Dynamic Viscoelastic Properties of Silica-Filled Closed-Cell Microcellular Ethylene Propylene Diene Rubber Vulcanizates: Effect of Blowing Agent, Temperature and Strain

1995 ◽  
Vol 27 (4) ◽  
pp. 305-328 ◽  
Author(s):  
K. C. Guriya ◽  
D. K. Tripathy
Keyword(s):  
Viscoelastic Properties ◽  
Ethylene Propylene ◽  
Blowing Agent ◽  
Closed Cell ◽  
Ethylene Propylene Diene Rubber ◽  
Diene Rubber

Cellular Morphology, Peel Strength and Thermal Conductivity for Wood/NR and Expanded EPDM Laminates for Roofing Applications

2008 ◽  
Vol 47-50 ◽  
pp. 181-184
Author(s):  
W. Yamsaengsung ◽  
Narongrit Sombatsompop
Keyword(s):  
Thermal Conductivity ◽  
Peel Strength ◽  
Optimum Concentration ◽  
Cellular Morphology ◽  
Ethylene Propylene ◽  
Blowing Agent ◽  
Rubber Composite ◽  
Ethylene Propylene Diene Rubber ◽  
Diene Rubber

Melt-laminates of wood/NR and expanded ethylene-propylene-diene-rubber (EPDM) were prepared for rubber composite roofs. The ethylene-propylene bound OBSH (EPR-b-OBSH) blowing agent was introduced as an effective blowing agent in the EPDM layer and the foam property results were compared with the pure OBSH blowing agent. It was found that the EPR-b- OBSH gave expanded EPDM layer with a larger number of more uniform cells. The optimum concentration for EPR-b-OBSH blowing agent for achieving the maximum peel strength and for lowering the thermal conductivity of the wood/NR-eEPDM laminate was 3.0phr.

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