替代氟里昂液晶清洗剂用表面活性剂的合成及性能研究  

Study of the Synthesis and Characteristics of Surfactants to Applied to LCD Detergents as Substitute for Freon

作　　者：李玉香[1] 马骏 刘建强[1] 

机构地区：[1]山东大学物理与微电子学院,山东济南250100 [2]浙江省环境保护科学研究院,浙江杭州310007

出　　处：《精细化工》2002年第B08期73-76,共4页Fine Chemicals

摘　　要：以C6～ 14 为起始剂 ,合成脂肪醇聚氧乙烯聚氧丙烯嵌段聚醚 (A) ,其n(EO)∶n(PO) =10∶3,浊点为 5 5～ 6 0℃ ,HLB =10～ 13,渗透性能好 ,泡沫低 ,表面活性高 ,临界胶束浓度为 3× 10 -6mol/L ,但乳化能力不高。若以P2 O5对聚醚 (A)磷酸酯化加以改性 ,n(P2 O5)∶n(A) =1∶(2～ 4 ) ,反应温度控制在 6 0～ 80℃ ,反应时间 2 5h ,这时磷酸双酯的质量分数最高 ,其水溶性大大提高 ,渗透性能和乳化分散性能得到改善 。Fatty alcohol polyoxyenthylene polyoxypropylene block polyether(A) with the ratio of n (EO)∶ n (PO)=10∶3,the cloud points 55-60 ℃,HLB=10-13 and CMC=3×10 -6 mol/L is synthesized from C 6-14 alcohol.It has good penetrability,low foam and high surface activity,but its emulsifing property is poor.It is modified by P 2O 5 in order to get the high content phosphate double ester under the following conditions: n (P 2O 5)∶ n (A)=1∶(2-4),reaction temperature 60-80 ℃ and reaction time 2 5 h.The obtained phosphate double ester has good solubility,penetrability and emulsifing property.They all can be used in the detergents instead of freon to clean liquid crystal display in the electronic industry.

关 键 词：非离子型表面活性剂 替代氟里昂 液晶清洗剂 合成 性能 研究 脂肪醇聚氧乙烯 聚氧丙烯嵌段聚醚 

分 类 号：TQ649.4[化学工程—精细化工] TQ423.2