研究了亲水性单体AA和引发剂K2 S2 O8用量对三元共聚物 (MMA/BA/AA)无皂乳液 (pH =8)的电解质稳定性、冻融稳定性和机械稳定性的影响。当乳液电解质稳定性和冻融稳定性最好时存在AA和K2 S2 O8用量最佳值 ,而乳液的机械稳定性则随AA和K2 S2 O8用量增大而迅速提高。乳液中加入丙酮可以改善其稳定性。 The effects of the amount of hydrophilic monomer AA and initiator K2 S2 O8 on the electrolyte stability, freeze-thaw stability and mechanical stability of soap-free emulsion (pH = 8) of terpolymer (MMA / BA / AA) . The best AA and K2 S2 O8 dosage were obtained when the emulsion electrolyte stability and freeze-thaw stability were the best, while the mechanical stability of the emulsion increased rapidly with the increase of AA and K2 S2 O8 dosage. Acetone can be added to the emulsion to improve its stability.