Synthesis And Properties Of Fluorine-containing Silicone Finishing Agent

The detailed research was focused on the synthesis process structure and properties of pseudo-perfluoroalkyl polysilicones and on the physical and chemical properties of intermediates and product. And preliminary research was done on the production appliance performance .Firstly, a two-step synthesis process that point to the material providing inland was selected, this synthesis process was reasonable and easy relatively. Besides the conditions of synthesis reaction were adjusted. Namely, the first step reaction were prepared by esterifing allyl alcohol with perfluoro caprylic acid . allyl-octonary-carbon fluoric ester was attained by extraction and filtration . the second step were prepared by hydrosilylation between hydrogen-silicone and perfluoro caprylic acid a-allyl ester, in this reaction, we can attain a series of presudo- perfluoroalkyl polysilicones that have different fluoric content. At above synthesis, the optimum methodology were probed by orthogonal experiment design. Moreover, in this article through comprehensive utilization modern analytical and testing instrument . the performance parameter and molecular structure of the raws , middlings and outcome were analyzed. The molecular structure and molecular weigh of HS were analyzed by IR and 1HNMR, the molecular structure of intermediates was confirmed ; comparing to the concentration change of reactant and resultant, reaction course of hydrosilylation was confirmed .Finally ,the applied properties of Fs were tested. By electron microscope we observe surface shape and visage of fibrin , and research the character that the quantity of fluoric infected to surface shape and visage of fibrin. The mechanism and the infection factor of property of resistance to water and oil on the fiber.