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乙酰化羊毛脂及其在化妆品中的应用 总被引:6,自引:0,他引:6
本文在实践工作的基础上,对乙酰化羊毛脂的性质、制备及其在各种化妆品配方中的应用进行了较为详细的阐述。一.概述羊毛脂是一种优良的天然化妆品原料,它具有良好的柔软及乳化性能,在化妆品配方中有着广泛的应用。但羊毛脂本身也存在着一些不足之处,如粘腻、味臭、油溶性差、有一定的过敏性等。经过不同的物理及化学方法处理,以羊毛脂为基础原料制备的各种羊毛脂衍生物则在不同程度上克服了羊毛脂 相似文献
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在国外,羊毛脂分馏物及其衍生物在化妆品中已得到广泛的应用。国内此项工作也得到了专家们的普遍关注。但是,由于羊毛脂组成复杂,精制和加工困难,所以目前我 相似文献
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自从一个世纪以前,化妆品以及医药级无水羊毛脂问世至今,在此基础上制备出的各种羊毛脂衍生物产品在世界上已达百种之多,羊毛油即是其中性能优异、用途广泛的一种。一、羊毛油的性质羊毛油是50年代初出现在市场上的。它是通过一系列物理过程将羊毛脂进行分离而得到的低凝固点的、在室温下可以流动的羊毛胀衍生物,也称为液体羊毛脂。由于羊毛油是非化学改性的羊毛脂系列产品,不含其它化学成分,没有超出羊毛胀的组成范围。在化学组成与性能上,它与羊毛脂有相同、相似的一面,也有不同、特殊的一面;诚然,这种不同更多地体现在其性能的… 相似文献
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<正> 在辽宁省科委主持下,1984年10月18—19日,于大连召开了从粗羊毛脂制羊毛脂醇及羊毛脂酸小试技术鉴定会。 羊毛脂是附着在羊毛上的类脂物。近年来,羊毛脂及其衍生物在国外化妆品中的应用日益广泛,据统计:全世界原毛产量达250万吨/年,所附羊毛脂约25万吨,目前仅能回收利用10%,日本羊毛脂产量约为1万吨/年。国外80~90%的精制羊毛脂用于化妆品方面。羊毛脂酸与羊毛脂醇含有丰富的甾醇和支链脂肪酸,具有近似于人类皮脂的组成,所以对人的皮肤的表皮细胞,有赋活、柔润等作用,在现代化妆品配方中,成为相 相似文献
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本文对EO数为45、60、75的三种羊毛脂衍生物的表面特性及柔软性和摩擦系数进行了测定。结果发现,随着EO数的增加,发泡力增强,表面张力、柔软性和摩擦系数下降,而对去污力、cmc则影响不大。经在化妆品中的应用试验,证明该类羊毛脂均属化妆品的理想组分。 相似文献
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本文介绍了用临氢皂化法,从工业羊毛脂制取羊毛脂衍生物LAD-01的工艺和设备。产品测试结果表明,用该装置生产的LAD-01其各项技术指标均相当于小试鉴定水平。 相似文献
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H. A. Salama H. O. Ammar A. E. M. El-Nimr 《European Journal of Lipid Science and Technology》1976,78(4):158-161
Three members of polyoxyethylene sorbitol lanolin derivatives were investigated for their rheological characteristics. The investigation included the study of phenomena of consistency, breakdown and regeneration of the gel structure. 相似文献
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H. A. Salama A. E. M. El-Nimr H. O. Ammar 《European Journal of Lipid Science and Technology》1976,78(8):319-322
Three members of liquid derivatives of lanolin representing three basically different types of these derivatives were studied for their rheological characteristics. The rheological investigation was performed through the determination of flow curve, structural viscosity, yield value, plastic viscosity, coefficients M and B of thixotropic breakdown and quotient R of structural recovery. 相似文献
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Harold M. Sell Seymour G. Gilbert 《Journal of the American Oil Chemists' Society》1947,24(12):420-422
Conclusions and Summary The methyl esters of the fatty acids in the wax of dormant tung buds were prepared and fractionated in a column packed with
a spiral screen. Myristic, palmitic, linoleic, oleic, and stearic acids were identified in some of the fractions by the saponification
equivalents and by the melting points of the p-bromophenacyl derivatives of the saturated acids and the hydroxy derivatives
of the unsaturated acids. The identification of these acids proved the presence of some of the higher fatty acid radicals
similar to those found in Crisco and lanolin. It is believed that the mutual solubility of these fatty acids may have facilitated
penetration of the alpha-naphthalenacetic or indole-3-acetic acid in Crisco and lanolin emulsions, into the bud tissue and
in this way increased their effectiveness in prolonging dormancy.
Associate chemist (resigned) and associate plant physiologist, respectively, Division of Fruit and Vegetable Crops and Diseases,
Bureau of Plant Industry, Soils, and Agricultural Engineering, Agricultural Research Administration, United States Department
of Agriculture 相似文献
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一步法制造羊毛脂钙皂 总被引:1,自引:0,他引:1
探索了一步法制造羊毛脂钙皂的工艺。通过红外光谱证实了反应产物为羊毛脂钙皂。实验表明 ,常压一步法羊毛脂皂化的反应速度很慢。选择正丙醇作为溶剂 ,反应 5h后的转化率为 73 2 %,可以达到常压一步法反应 8h所达到的转化率。压力法反应 6h后的转化率为 78%,可以达到常压一步法反应 12h所达到的转化率。压力法制造羊毛脂钙皂工艺 ,避免了两步法的污水排放问题 ,具有良好的工业生产前景。 相似文献
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介绍了新型大环多胺及其衍生物的结构特点、应用、络合物性能及对分子离子识别作用的新进展。重点综述了近年来各类新型大环多胺及其衍生物的合成、配合物的形成、对分子离子的识别、催化、选择性络合及新应用,展望了其广阔的应用前景。期望能在医药学、生命科学、材料科学、环境科学及能源科学的应用上更有意义。 相似文献
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L. D. Metcalfe 《Journal of the American Oil Chemists' Society》1979,56(11):819A-822A
Recent advances in the analysis of industrial fatty acids and their derivatives almost always involve complex instrumentation.
One of the most important developments in the analysis of fatty acids and their derivatives was the application of gas chromatography
(GC). The result has been so effective that the time-consuming fractional distillation and detailed analysis of fractions
previously employed are rarely used. Even though the so-called GLC technique has now been applied for over twenty years, new
advances continue to be made in this area. Perhaps the most potentially valuable new development is the coupling of GLC with
mass spectrometry (GLC-MS). Two newer chromatographic methods which have great potential in the field of fatty material analysis
are thin layer chromatography (TLC) and high performance liquid chromatography (HPLC). The former is applicable to difficult
separations; e.g., separation of broad lipid classes, in microquantities. The latter has already been applied with some success
to the separation of individual component triglycerides of fats and oils and fatty acids using reverse phase HPLC. Instrumentation
techniques include supportive methods which are frequently used in conjunction with other methods. Among these, the techniques
of nuclear magnetic resonance (NMR) and infrared absorption (IR) are the most prominent.13C NMR is useful in defining fine structure of fatty acids, particularly with respect to branching. X-ray diffraction is used
to study polymorphism in fatty acids. 相似文献
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采用VPO法测定羊毛脂的数均相对分子质量为778。45℃,w(羊毛脂)=2%的煤油溶液与二次蒸馏水、w(Na2CO3)=1 2%的水溶液、w(NaOH)=1 2%的水溶液之间的最低界面张力分别为5 25,0 21,0.20mN/m。于30℃测定了羊毛脂煤油溶液在水/碱体系的乳化性能。羊毛脂在w(NaOH)=1 2%的水溶液中的乳状液非常稳定,反应4d时已经完全乳化,分水率为零;在二次蒸馏水中的分水率4d时仍大于90%。w(羊毛脂)=0 1%的煤油溶液与w(NaOH)=1 2%的水溶液之间,随着剪切速率的增加,羊毛脂的界面剪切黏度逐渐降低,具有切稀作用。 相似文献