Permeation of chlorinated hydrocarbons through styrene-butadiene rubber/natural rubber blends

 

 

Soney C.George1, K.N.Ninan2, G.Gueskens3 and Sabu Thomas4,*

 

1Department of. Basic Sciences, Amal Jyothi College of Engineering, Koovapally, Kottayam-686518, India

2 School of Chemical Sciences, Mahatma Gandhi University

Priyadarshini Hills P.O, Kottayam-686560, India

3Propellant and Special Chemicals Group, PSC Division, VSSC, Thiruvanathapuram

4University of Brussels, Campus Plaine, CP 206-1

Boulevard du Triomphe, B-1050, Brussels, Belgium

 

summary

      Styrene-butadiene rubber/natural rubber blend membranes were prepared by conventional vulcanization technique. The morphology of styrene-butadiene rubber/natural rubber blend membranes has been investigated by combining scanning electron microscopy with measurements of permeability to chlorinated hydrocarbon vapours. The results obtained from both SEM and permeation measurements suggest that SBR/NR blend membranes are heterophase in nature. The effect of structure of the penetrant on permeation through blend membranes was also investigated. Finally, the permeation of chlorohydrocarbon vapours through membranes is compared with permeation of oxygen and nitrogen gases through the membranes.

 

 

Key words: permeation, styrene-butadiene rubber, natural rubber and blends, membranes

 

 


* To whom all correspondence should be addressed.