Preparation of Semi permeable Polyvinyl butyral Membranes and Study of Their Chemical, Physical and Mechanical Properties

Abstract

In This work, we had prepared three semipermeable membranes with different concentration of polyvinyl butyral by the phase inversion process. This way is a basic method to get flat membranes. The membranes were tested for chemical properties (chlorine tolerance and pH range), physical properties (viscosity and porosity), and mechanical properties (tensile strength , strain and modulus of elasticity ). The results showed that the polyvinyl butyral membrane prepared from different concentrations stand the chlorine concentration (ppm3000), and (12% ,15%) having the higher pH range, while the polyvinyl butyral (15%) membrane having the higher tensile strength and strain, but it was having the lowest modulus of elasticity (Young’s Modulus) and porosity, viscosity was measured in low concentration was showed that polyvinyl butyral (2%) solution having the higherst viscosity.