非离子表面活性剂复配体系硅油乳化剂的研制

对非离子表面活性剂在硅油乳液制备中的应用进行了研究。采用均匀设计与调优软件进行乳化剂配方的设计和实验结果的优化,考察了表面活性剂间的相互作用,得到了最佳配方。结果表明,配方中的表面活性剂间均有强烈的协同作用,最佳配方：ω（X1）=30．14%,ω（X2）=23．69％,ω（X3）=22．45％,ω（X4）=13．05％,ω（X5）=10．67％。制备的硅油乳液稳定性好,在3000r／min的转速下离心30min不分层、不漂油。     

C_5和C_9石油树脂改性制备吸音矿棉板防水剂的研究

研究了改性制备C5、C9混合石油树脂乳液的方法,主要讨论了C5、C9混合的最佳质量配比,改性剂马来酸酐及分散剂马来松香的用量,改性时间和碱液用量对乳液性能的影响。实验结果表明,最佳制备工艺条件为:C5石油树脂与C9石油树脂混合质量比为1∶3;改性时间为3h;改性温度为200℃;马来酸酐质量分数为1.5%;马来松香质量分数为9%;碱液为NaOH溶液,质量分数为2%。混合石油树脂乳液与石蜡乳液混合质量比为1∶2,制备出了吸音矿棉板防水剂。     

C9石油树脂改性制备吸音矿棉板防水剂的研究

The modified petroleum resin emulsion prepared from the C9 petroleum resin was modified with maleic anhydride. The effects of maleic rosin and maleic anhydride addition level, the modification time and the alkali liquor on the properties of the emulsion were discussed. The results showed that the optimum process conditions covered： a maleic anhy- dride mass fraction of 1.5%, a maleic rosin mass fraction of 10%, a KOH mass fraction of 1%, a petroleum resin modification temperature of 200 ℃, a petroleum resin modification duration of 3 h, and a modified petroleum resin emulsion/ wax emulsion mixing ratio of 1 ： 1. The particle size of modified petroleum resin emulsion prepared under these conditions was equal to 104.166 μm     

非离子与阴离子表面活性剂复配制备石蜡微乳液

利用非离子表面活性剂辛基酚聚氧乙烯醚,阴离子表面活性剂脂肪醇醚磷酸酯钾盐和助剂正戊醇,对石蜡微乳液的制备进行了研究。选用均匀设计与调优软件对表面活性剂的配比进行设计与调优,考察了表面活性剂间的协同作用。乳化剂的最佳配方（质量分数）为：OP-4（82.47%）,MOA-3PK（11.11%）,正戊醇（6.42%）。研究结果表明当乳化剂质量分数为5%,固含量为25%,搅拌速度600～800r/min,乳化时间为40min时,可制备出性能稳定的石蜡微乳液。     

影响高固含量硅油乳液粒径大小的因素

A silicone oil emulsion with 60% of solid content was prepared with methyl silicone oil used as the main material by means of the emulsifier-in-oil method.The influence of emulsification conditions on the droplet diameter of silicone oil emulsion was discussed.The experimental results showed that the emulsification method,including the quantity of the emulsifier,the time and temperature of emulsification,the emulsifying water dosage,and the stirring speed,had significant impact on the droplet size.The optimal conditions were identified to achieve a smallest droplet diameter of the emulsion at an emulsifier dosage of 6%,an emulsification temperature of 70 ℃,an emulsification time of 30 min,and a stirring speed of 1100 r/min,with water added in two portions at a ratio of 1:1.The high-solid content silicone oil emulsion with a mean droplet diameter of 2.731 μm was prepared under these conditions that could ensure absence of stratification and floating oil under centrifuging at a speed of 3000 r/min for 30 min.     

石蜡微乳液影响因素的考察

石蜡微乳液是由58#石蜡、离子和非离子表面活性剂制备而成。影响石蜡微乳液粒径的因素有乳化剂用量、乳化温度、乳化时间、搅拌速度、pH值和助表面活性剂。实验结果表明：乳化温度在75-85℃时对石蜡微乳液的粒径影响不大;而其它因素对石蜡微乳液的粒径影响较大。制备石蜡微乳液的最佳工艺条件为：w（乳化剂）=6%,乳化温度为80℃,乳化时间为40min,pH为8,搅拌速度约600r/min,助表面活性剂为正戊醇。在此条件下,可以制备粒径为97nm、半透明的石蜡微乳液。