Abstract
In this study, a novel inorganic-organic hybrid polymer flocculant PAC-P(AM-BA) with hydrophobic groups was synthesized using the aqueous solution free radical micelle polymerization method. The raw materials used were polyaluminum chloride (PAC), polyacrylamide (AM), and butadiene acetate (BA). Experimental results demonstrated that the optimal preparation conditions for PAC-P(AM-BA) were as follows: initiator mass fraction of 0.15% (based on total monomer), n(AM):n(BA)=98:2, urea mass fraction of 3.00%, total monomer mass fraction of 15.597%, inorganic component (PAC) mass fraction of 1.346%, and polymerization temperature of 24.225℃. In PAC-P(AM-BA), BA was chemically bonded within PAM, while PAC was connected to the organic long chain through ion bonding. Moreover, the thermal decomposition temperature of PAC-P(AM-BA) was found to be 275.93℃. The hybrid flocculant exhibited a rough surface and displayed strong adsorption bridge formation as well as net capture and sweeping performance.
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