摘要
合成一系列全氟辛酸二价盐(M(PFOA)_2,M^(2+)=Mg^(2+),Ca^(2+),Sr^(2+),Ba^(2+))和全氟丁酸二价盐(M(PFBA)_2),并测定其在水、二甲基亚砜(DMSO)和乙二醇(EG)中的表面张力,同时测定了全氟辛酸(PFOA)和全氟丁酸(PFBA)分别与三价金属盐(LaCl_3和FeCl_3)组成的混合物在水溶液中的表面张力。结果表明,与相应的钾盐相比,M(PFOA)_2和M(PFBA)_2具有更高的表面活性,而全氟羧酸(PFOA或PFBA)与三价金属盐的混合物未见表面活性显著提高。M(PFOA)_2可作为降低PFOA盐使用量的重要方法加以应用。
A series of divalent salts(M(PFOA)2 and M(PFBA)2,M^2+=Mg^2+,Ca^2+,Sr^2+,Ba^2+) of perfluorooctanoic acid(PFOA)and perfluorobutanoic acid(PFBA)were synthesized,whose surface activities in water,dimethyl sulfoxide(DMSO)and ethylene glycol(EG)were studied.The aqueous solutions of perfluorinated carboxylic acids(i.e.PFOA and PFBA)mixed with trivalent metal salts were also investigated by surface tension measurement.The results show that the surface activities of M(PFOA)2 and M(PFBA)2 are higher than that of potassium perfluorooctanoate(PFOK)and potassium perfluorobutanoate(PFBK),respectively,in all of the three solvents.But the surface tension of the mixtures of PFOA(or PFBA)and trivalent metal salts show no improvement compared with that of PFOA(or PFBA)alone.M(PFOA)2 has shown the potential of reducing the usage amount of PFOA salts in application.
作者
肖子冰
窦增培
何挺
邢航
肖进新
XIAO Zi - bing;DOU Zeng - pei;HE Ting;XING Hang;XIAO Jin - xin(College of Chemistry,Nankai University,Tianjin 300071,China;Beijing FLUOBON Surfactant Institute,Beijing 100096,China;Longdong University-FLUOBON Surfaetant Engineering Technology Center,College of Chemistry & Chemical Engineering,Longdong University,Qingyang,Gansu 745000,China;Lanzhou Chengguan Fanjiawan School,Lanzhon,Gansu 730020,China)
出处
《日用化学工业》
CAS
CSCD
北大核心
2018年第7期363-370,共8页
China Surfactant Detergent & Cosmetics
关键词
全氟辛酸二价盐
全氟丁酸二价盐
表面张力
perfluorooctanoic acid divalent salt
perfluorobutanoic acid divalent salt
surface tension