Study of Viscous Relaxation Time for BF and AnD Aqueous Binary Mixture

Phadke S.¹ , Shrivastava B.D.² , Ujle S. K.³ , Mishra A.and Dagaonkar N.⁴

Section:Review Paper, Product Type: Isroset-Journal
Vol.4 , Issue.1 , pp.1-3, Mar-2016

Online published on Mar 27, 2016

Copyright © Phadke S., Shrivastava B.D., Ujle S. K., Mishra A.and Dagaonkar N. . This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
 

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Abstract :
The dynamics of molecular liquids and polymers exhibit various ‘‘transitions’’, associated with characteristic changes in properties. The study of molecular motions in dense fluids is of long-standing interest to physicists, chemists, and biologists. The time scale of the dynamics varies with temperature, pressure, entropy, etc., reflects the nature of the intermolecular potential, thus providing fundamental insights into chemical structure and the forces between molecules. The relaxation behaviour also governs to a large extent the physical and mechanical properties underlying many applications of materials so that such studies facilitate material engineering and development. The transient elongation stress growth in the fluids depends on the concentration and molecular weight of the solute as well as the background of viscosity and thermodynamic quality of the solvent. In the present investigation, first we measured density, surface tension, viscosity and ultrasonic velocity then calculated viscous relaxation time 'Borassus Flabellifier' BF and Adansonia digitata AnD aqueous binary mixture at room temperature. Density bottle, pyknometer, and stalogometer used for measurement of density , viscosity and surface tension while ultrasonic velocity in liquid mixture were measured using ultrasonic interferometer Model M-84 made by M/s Mittal Enterprises, New Delhi, at a fixed frequency of 2MHz.

Key-Words / Index Term :
'Borassus Flabellifier' BF, Adansonia digitata AnD, Ultrasonic Velocity, Viscous Relaxation Time

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