The study of application of composite membrane with interpenetrating polymer network in North China petrol field

In the process of producing composite membrane, it is normally difficult for macromolecular polymers to be mixed perfectly.A certain kind of solvent used to increase the solubility was added into the polymer-solvent-polymer system to change the assembling state of the polymers. Because the polymers could only be partly dissolved in the solution, the mechanism was different in the different part of the system.So a layer of interpenetrating network with two kinds of polymers was formed between the upper function surface and the supporting layer beneath. Various kinds of factors, which affected the properties of the membranes, have been studied by using orthogonal experiments.