双官能团超分散剂的制备及性能研究

摘要

采用溶液聚合法,以水为溶剂、丙烯酸和烯丙醇为功能单体、K2S2O8-NaHSO3氧化还原体系为引发剂,合成了一种双官能团的超分散剂.主要探讨了不同单体配比对超分散剂分散性能的影响.研究结果表明,具有双官能团的超分散剂的分散性能优于常规聚丙烯酸钠分散剂,其中烯丙醇质量分数为55％时的分散性能最优.%Using solution polymerization, a bifunctional hyperdispersant was developed with water as solvent,acrylic acid and allyl alcohol as functional monomers, and K2S2O8-NaHSO3 redox system as initiator; and the effects of different monomer ratios on the dispersion of the hyperdispersant was also discussed. Results indicated that the scattering performance of the bifunctional hyperdispersant is better than that of the conventional polyacrylic acid sodium dispersant.and when allyl alcohol mass fraction was 55%, the dispersion is the best.