医用氧化蜡的制备
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摘要
对自制氧化蜡通过乳化法制备得到氧化蜡乳液。考察了乳化剂种类、乳化用水量、乳化温度、乳化剂用量、乳化时间和转速等因素对氧化蜡乳液密度及油含量的影响。结果表明:复配乳化剂比单一乳化剂效果好且乳化的最佳反应条件为:复配乳化剂m(单甘脂)∶m(吐温-80)=2∶3,乳化剂用量0.5%(wt,质量分数,下同),乳化温度85℃,乳化时间35min,乳化用水量84%,转速1200r/min。将氧化蜡进行乳化得到乳白色、具有淡酯香味、分散性为二级、稳定性好、油含量低和口感好的氧化蜡乳液,且密度符合医学照影用石蜡乳液的要求。
The oxidized wax emulsion was prepared by emulsifying homemade oxidized wax.The effects of emulsifying temperature,emulsifying time,water dosage,initiator dosage and rotating speed on the paraffin emulsion property and oil content were studied.The results showed that composite emulsifiers could provide better performance for the paraffin emulsion and stable paraffin emulsion can be prepare under the optimum condition:m(glycerolmonostearate)∶m(Tween-80)=2∶3,emulsifier dosage 0.5 wt%,emulsifying temperature 85℃,emulsifying time 35 min,water dosage84 wt% and stirring speed 1200 r/min.The oxidized wax was emulsified to obtain an oxidized wax emulsion with milky white,ester aroma,dispersibility of two grade,good stability and low oil content density met the requirements.
The oxidized wax emulsion was prepared by emulsifying homemade oxidized wax.The effects of emulsifying temperature,emulsifying time,water dosage,initiator dosage and rotating speed on the paraffin emulsion property and oil content were studied.The results showed that composite emulsifiers could provide better performance for the paraffin emulsion and stable paraffin emulsion can be prepare under the optimum condition:m(glycerolmonostearate)∶m(Tween-80)=2∶3,emulsifier dosage 0.5 wt%,emulsifying temperature 85℃,emulsifying time 35 min,water dosage84 wt% and stirring speed 1200 r/min.The oxidized wax was emulsified to obtain an oxidized wax emulsion with milky white,ester aroma,dispersibility of two grade,good stability and low oil content density met the requirements.
引文
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[11]赵国玺.表面活性剂物理化学[M].北京:北京大学出版社,1991,24-26.
[2]陈文艺,段宁宁,李玉庆.基于正交设计法的石蜡氧化改性研究[J].应用化工,2011,40(4):609-611.
[3]郑立辉,盛奎龙,潘金亮.石油蜡的生产及深加工[M].北京:化学工业出版社,2008,126-180.
[4]Ibrahimov H C,Friedrich J F,Ismailov E H,et al.Thermal and magnetic peculiarities of metal-containing carbon nanophase formed in the reaction of fine-dispersed aluminium with dichloretha in the paraffin medium[J].Journal of Materials Science and Engineering,2012,2(2):196-202.
[5]方静,杨基和,刘英杰.石蜡氧气氧化和空气氧化动力学[J].化学反应工程与工艺,2011,27(5):432-437.
[6]黄玮,李长征.氧化蜡制备皮革用蜡[J].辽宁石油化工大学学报,2007,27(3):4-6.
[7]陈鹏,纪灵娴,王德,等.乳化条件对氧化蜡乳液颗粒粒径的影响[J].辽宁石油化工大学学报,2013,33(1):19-21.
[8]付雪,诸林,朱蠡庆.改性石蜡的乳化研究[J].西南石油大学学报(自然科学版),2013,35(2):158-163.
[9]陈娆,王冬美,孙彩兰,等.氧化蜡乳化工艺研究[J].当代化工,2014,43(3):337-339.
[10]姜易虹,魏铭,刘辉,等.丙烯酸固相接枝制备高稳定性改性聚乙烯蜡微乳液[J].化工进展,2016,35(9):2941-2944.
[11]赵国玺.表面活性剂物理化学[M].北京:北京大学出版社,1991,24-26.