【摘要】 以苯乙烯磺酸钠(SSS)、丙烯酸(AA)、松香衍生物(MPAHEMA)为单体合成了一种新型共聚物分散剂。结果表明,当单体SSS,AA,MPAHEMA的摩尔比为1.0∶3.5∶0.2、引发剂的质量分数为单体总质量的8%、反应温度80℃、反应时间为2h时,制得的分散剂对硫酸钡的分散效果最佳。此分散剂用于加工75%阿特拉津水分散粒剂(WG),分散剂的最佳用量为6%,悬浮率可以达到90.8%,悬浮率和最大持留量均高于进口分散剂(T/36)制成的水分散粒剂。更多还原

【Abstract】 A rosin derivate dispersant was synthesized using sodium styrene sulfonate (SSS),acrylic acid and a rosin derivate (MPAHEMA) as monomers. When the mole mass proportion is SSS∶AA∶MPAHEMA=1∶3.5∶0.2,the mass fraction of initiator in total monomers is 8% by weight,the reaction time is 2 hours and the reaction temperature is 80 °C,the copolymer dispersant has the best performance in dispersing barium sulfate. The copolymer dispersant was used in the 75% water dispersible granule(WG) formulation of atrazine. The optimal use lever of the dispersant is 6% by weight. At this lever suspension percentage of water dispersible granule is 90.8%,higher than the imported dispersant.更多还原