International Journal of Chemical Studies
Vol. 1, Issue 2 (2013)
Study of Compatiblity Behaviour of Solution Blends of NbrSbr Using Ultrasonic and Other Related Techniques
Author(s): Poonam Tiwari, Pratibha Singh, Vishal Verma, K. N. Pandey*, Vijai Kumar
Abstract: The present investigations deal with the study of compatibility behavior of styrene -butadiene- rubber (SBR) and acryonitrile-co-butadiene (NBR) blends. Ultrasonic velocity, absolute viscosity and density measurements have been performed on solution blends of SBR and NBR in various blend ratios with and without addition of chlorinated polyethylene (CPE) as a compatibilizer. The ultrasonic velocity has been observed to deviate from linearity with variation in the blend ratio without the compatibilizer. The addition of compatibilizer, however, results in a marked increase of the ultrasonic velocity and it varies linearly with blend composition. The ultrasonic velocity and viscosity of the solution blends are significantly dependent of temperature and solid content of the blend solution. In order to understand the phase behavior of the blend with and without compatibilizer, morphological study has also been carried out using scanning electron microscope (SEM). Physico-mechanical properties like tensile strength and elongation at break and hardness of blends, NBR and SBR rubbers (50:50 blends) with and without compatibilizer has also been studied. Mechanical properties of blends with compatibilizer are more than that of without compatibilizer.
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Fig. 1: Ultrasonic velocity vs. blend ratio of NBR and SBR without a compatiblizer, and the effect of the addition of CPE
Fig. 2: Variation of ultrasonic velocity with polymer concentration in solution of NBR-SBR blends without a compatiblizer
Fig. 3: Variation of ultrasonic velocity with polymer concentration in solution of NBR-SBR blends containing CPE as compatibilizer
Pages: 54-64 | 1244 Views 6 Downloads
How to cite this article:
Poonam Tiwari, Pratibha Singh, Vishal Verma, K. N. Pandey*, Vijai Kumar. Study of Compatiblity Behaviour of Solution Blends of NbrSbr Using Ultrasonic and Other Related Techniques. Int J Chem Stud 2013;1(2):54-64.