Papers by Author: Shan Shan Han

Abstract: Nowadays, the stability of the mixed solution usually is improved by adding appropriate amount of emulsifier needed in many oil products, in order to reach the better effect of solution mulsification. In this paper, using silica gel column seperation to isolate pure ingredient of the emulsifier component, and all molecular structures prepared on silica gel were characterized by Fourier transform infrared (FTIR) spectum and silid-state 1H NMR experimental observations.

Abstract: This first part of this paper will introduce the mechanical-dynamical properties of polysiloxane defoamer thoroughly. Defoamers or foam breakers are added to eliminate the existing foam and usually act on the outer surface of the foam because a bubble is a closed system and the defoamer can only reach the outer surfaces. Then, some of synthesis methods and compounds under real application conditions are given, such as synthesis of methyl hydrogen silicone oil, synthesis methods of polyether and compounds of polyether modified polysiloxane defoamer.