Characteristics of Polyethersulfone Membranes with the Addition of Silver Nitrate; Tensile Strength, Microstructure, and Permeability

摘要

This research will be used as raw material for the manufacture of polymer membrane of Polyethersulfone (PES). Properties of a membrane are known about the characteristics of the membrane which can figure out the effectiveness and efficiency of a membrane that is created by the presence of parameter testing. Study of the parameters used, namely tensile strength, microstructure, and permeability of the membrane. This membrane is created using three different aqueous concentrations of Polyethersulfone (PES) (27.5%, 25%, 30% by weight) with the addition of concentrations of silver nitrate (AgNO3) a 1% weight and N, N-Dimethylfornamide (DMF) as a solvent. The results of the mechanical strength of Adhesion machine using Tearing Strenght Tester showed an increase in the value of the pull-test of the 523.3626333 kPa to concentrations of 25%, the 593.554966 kPa to 27.5% and the concentration of the 621.5878333 kPa to 30% concentration. For testing of the microstructure using Scanning Electron Microscopy the diameter membrane is varies pores, to range size 1,396 μm up to 2,151 μm, there is for concentrations of 25%, range 645.2 nm up to 967.9 nm at concentrations of 27.5% and 573.5 nm up to 1,950 μm at concentrations of 30%. For the ability of membrane permeability on pressure 2 bar using the Clean Water Permeability for the concentration of 25% 69.9420 L.m~(-2).h~(-1) for the concentration of 27.5% 18.24575 L.m~(-2).h~(-1)for the concentration of 30% 14.81776 L.m~(-2).h~(-1).