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Use of dispersion polymerization in an aqueous solution of ammonium sulfate to ammonium persulfate ( APS ) - sodium bisulfite (SHS) initiator prepared acrylamide homopolymer (PAM) and propylene amide ( AM ) - methacryloyloxy ethyl trimethyl ammonium chloride (DMC) copolymer investigated different parameters such as time, temperature, monomers , APS-SHS and ammonium sulfate, etc. to the polymerization product properties . By infrared spectroscopy , scanning electron microscopy , transmission electron microscopy and particle size distribution analyzer product structure , particle morphology and particle size distribution of dispersion polymerization mechanism . Kaolin suspension simulated wastewater flocculation performance of the product to be assessed . For AM homopolymer , at the reaction temperature 40 ° C , reaction time 3 h , the acrylamide concentration of 4 %, the mass fraction of the dispersing agent is 4%, and the mass fraction of the ammonium salt of 24% , AM homopolymer optimum reaction conditions , the resulting product particles are spherical , discovered by dispersion polymerization mechanism of this experiment may exist gRAFTING . AM-DMC copolymer in the reaction temperature of 45 ° C , the reaction time 5h, the mass fraction of the dispersant was 2.8% , 20.3% mass fraction of ammonium sulfate , stable and uniform AM-DMC copolymer . Kaolin wastewater will be mixed with the use of home-made polymer and PAC (PAC) can achieve good results . PAC dosage to 15mg / L , the PAM investment and increase the amount of 1.0mg / L , the best flocculation effect of the compounding pharmacy ; when PAC dosage to 12mg / L copolymer dosage 1.5 ~ 2.0mg / L , the multiplexed flocculation effect is preferably equipped with the medicament . For the same kinds of flocculants , the greater the relative molecular mass of the flocculation performance better .
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