不同体系对防晒剂在毛发表面吸附性及防晒性的影响研究
毕业论文关键词： 防晒剂；毛发；吸附性； 光保护
Different systems on sunscreen in hair effect of surface adsorption and sunscreen
Abstract：Protection effects of Butyl methoxydibenzoylmethane, Octyl methoxycinnamate, Benzophenone-3 and Octyl salicylate to hair fibers were compared by measuring protein degradation, tryptophan degradation, lipid peroxidation and surface changes of hair exposed to UV irradiation. And adsorption behavior of the hair surface.Experiment results indicate that four kinds of sunscreen to adsorption on the hair surface, and selected emulsion systems, Octyl salicylate adsorption capacity to be significantly better than the other three types of sunscreens, Octyl methoxy cinnamate esters adsorptive capacity of the weakest, and the effect of UVB absorbers are better than UVA absorbers. Octyl salicylate have a better protective effect on internal lipids and proteins than octyl methoxy cinnamate. The protective effects on tryptophan are not obvious. The surface morphology of the hair samples are also have a difference.
Key words：sunscreen; hair; adsorption properties; light protection
目录
1 绪论 1
1.1 本课题国内外研究现状概述 1
1.2 头发的形态结构与化学组成 1
1.2.1 头发的形态结构 1
1.2.2 头发的化学组成 1
1.3头发的光损伤 2
1.4头发的光保护作用 2
1.4.1毛发自身光保护 2
1.4.2染发剂对毛发光保护 3
1.4.3发用护理产品的光保护作用 3
1.5防晒剂的发展趋势 4
1.6 防晒剂的作用机理与发用防晒剂成分 4
1.6.1紫外线吸收剂 4
1.6.2紫外线屏蔽剂 5
1.6.3 发用防晒剂成分 5
1.7 头发对防晒剂的吸附机理与吸附本质 5
1.7.1吸附机理 5
1.7.2吸附本质 5
1.8课题的研究目的和意义 6
2 实验内容 7
2.1 实验原料与设备 7
2.1.1 实验原料 7
2.1.2 实验设备 7
2.2 实验方法 8
2.2.1 样品的制备方法 8
2.2.2 乳状液的制备 8
2.2.3 头发的预处理 8
2.2.4 头发的照射 8
2.2.5 防晒剂吸附量的定量测定 9
2.2.6 蛋白质定量测定 9
2.2.7 脂质过氧化物的定量测定 9
2.2.8 色氨酸的荧光强度测定 9