The aim of this study was to select sheep fat from Tsetserleg sum of Arkhangai aimag as raw material and to produce liquid soap. The oil was extracted from raw materials such as sheep’s tail fat (TF), outer fat (OF),...The aim of this study was to select sheep fat from Tsetserleg sum of Arkhangai aimag as raw material and to produce liquid soap. The oil was extracted from raw materials such as sheep’s tail fat (TF), outer fat (OF), and inner fat (IF), which were analyzed by chemical methods, and the liquid soap was obtained by cold methods. Liquid soap was prepared from three types of raw materials, each of which was mixed with 70% fat oil and 30% liquid oil. The ratio was chosen to dilute the liquid soap to 2% of the product. The most suitable oil for preparing liquid soaps from raw materials such as TFO, OFO, and IFO was the tail fat oil (TFO). The highest unsaturated fatty acid content in crude fats and oils was 41.23%, the highest content of saturated fatty acids was 22.3%, and the highest content of methyl-stearate was 33.65% by the GC-MS analytical method.展开更多
在Fluent仿真平台上,采用肥皂液检测法对换热器的微米级泄漏孔进行了数值模拟,采用流体体积(Volume of Fluid, VOF)模型分别研究了气体流速、孔口直径和肥皂液厚度对肥皂泡破裂的临界高度及临界宽度的影响。研究结果表明,随着气体流速...在Fluent仿真平台上,采用肥皂液检测法对换热器的微米级泄漏孔进行了数值模拟,采用流体体积(Volume of Fluid, VOF)模型分别研究了气体流速、孔口直径和肥皂液厚度对肥皂泡破裂的临界高度及临界宽度的影响。研究结果表明,随着气体流速的增大,肥皂泡临界高度先减小再增大最后再减小,肥皂泡临界宽度先减小最后趋于稳定;肥皂泡临界高度及临界宽度与孔口直径和肥皂液厚度呈正相关;对肥皂泡临界高度影响程度最大的是肥皂液厚度,其次为孔口直径,影响最小的是气体流速;对肥皂泡临界宽度影响程度最大的是孔口直径,其次为气体流速,影响最小的是肥皂液厚度。展开更多
Foam cleanser is the most popular facial cleaning product in Asian market. However, soap-based product appears to be not physically stable under certain circumstance. For example, product viscosity decreases with the ...Foam cleanser is the most popular facial cleaning product in Asian market. However, soap-based product appears to be not physically stable under certain circumstance. For example, product viscosity decreases with the increase of temperature but goes up when the temperature goes down. More seriously, phase separation may occur for some products with time. Many efforts have been made to improve the stability of soap-based formulations mainly focusing on 1) adjust the fatty acids ratio;2) optimize saponification level;3) addition of thickeners and surfactants. Improvements have been made upon recent reports. However, required stability of the formulations at both high and low temperature is not satisfied yet. In this work, we introduced one type of non-ionic emulsifier to the soap-based formulation, through which to regulate the microstructure. It is seen that the stability is significantly improved at both high and low temperature, and the using performance is enhanced in the meantime.展开更多
文摘The aim of this study was to select sheep fat from Tsetserleg sum of Arkhangai aimag as raw material and to produce liquid soap. The oil was extracted from raw materials such as sheep’s tail fat (TF), outer fat (OF), and inner fat (IF), which were analyzed by chemical methods, and the liquid soap was obtained by cold methods. Liquid soap was prepared from three types of raw materials, each of which was mixed with 70% fat oil and 30% liquid oil. The ratio was chosen to dilute the liquid soap to 2% of the product. The most suitable oil for preparing liquid soaps from raw materials such as TFO, OFO, and IFO was the tail fat oil (TFO). The highest unsaturated fatty acid content in crude fats and oils was 41.23%, the highest content of saturated fatty acids was 22.3%, and the highest content of methyl-stearate was 33.65% by the GC-MS analytical method.
文摘在Fluent仿真平台上,采用肥皂液检测法对换热器的微米级泄漏孔进行了数值模拟,采用流体体积(Volume of Fluid, VOF)模型分别研究了气体流速、孔口直径和肥皂液厚度对肥皂泡破裂的临界高度及临界宽度的影响。研究结果表明,随着气体流速的增大,肥皂泡临界高度先减小再增大最后再减小,肥皂泡临界宽度先减小最后趋于稳定;肥皂泡临界高度及临界宽度与孔口直径和肥皂液厚度呈正相关;对肥皂泡临界高度影响程度最大的是肥皂液厚度,其次为孔口直径,影响最小的是气体流速;对肥皂泡临界宽度影响程度最大的是孔口直径,其次为气体流速,影响最小的是肥皂液厚度。
文摘Foam cleanser is the most popular facial cleaning product in Asian market. However, soap-based product appears to be not physically stable under certain circumstance. For example, product viscosity decreases with the increase of temperature but goes up when the temperature goes down. More seriously, phase separation may occur for some products with time. Many efforts have been made to improve the stability of soap-based formulations mainly focusing on 1) adjust the fatty acids ratio;2) optimize saponification level;3) addition of thickeners and surfactants. Improvements have been made upon recent reports. However, required stability of the formulations at both high and low temperature is not satisfied yet. In this work, we introduced one type of non-ionic emulsifier to the soap-based formulation, through which to regulate the microstructure. It is seen that the stability is significantly improved at both high and low temperature, and the using performance is enhanced in the meantime.
