摘要：本课题主要针对特纳卡皮部粉末应用及其防晒性能进行了研究。根据其亲水亲油性开发一款含特纳卡粉末的O/W型防晒乳液，采用紫外吸光度和SPF值表征产品的抗紫外能力，利用显微镜照片观察乳化粒子形态，同时考察产品稳定性。前期设计实验验证特纳卡粉末亲水亲油性，筛选乳化剂及油脂，确定乳液类型，拟定基础配方；中期通过不断添加配方中粉末含量和降低粉末粒径大小，优化配方体系。实验发现当特纳卡粉末在体系中的最大加入量为10%时，体系的紫外吸光度和SPF值达到最大。且粉末含量越高，体系稳定性越低；后期为改善产品肤感，对粉末进行粉碎处理。产品防晒效果增强，仍然是粉末含量为10%时，体系防晒性及稳定性最优。

关键词:特纳卡粉末；防晒乳液；配方开发

Development of sunscreen lotion formulas containing Thanaka powder

Abstract：In this subject, Thanaka bark powder apply to sunscreen lotion formulas and Sunscreen performance were mainly discussed. Based on the hydrophilic-lipophilic property of the Thanaka powder, the product was identified as an O/W emulsion. UV absorbance and SPF values were used to characterize the UV resistance of the product. In the experiment, the morphology of the emulsified particles was observed with microscope photographs. The stability of the product was examined. The preliminary design experiment verifies the hydrophilicity and hydrophilicity of the Thanaka powder, selects the emulsifier and the oil, determine emulsion type and formulate basic formula. Secondly, by changing the powder content and size of the powder, the formulation system is optimized. It was found out that 10% can show the highest UV absorbance and SPF values. The higher the powder content, the lower the stability of the system. Finally, to improve the skin feel of the product, the powder is crushed, it was found that the sunscreen effect was enhanced. Meanwhile, sunscreen effect is the best when the content was still 10%.

Keywords：Thanaka powder；sunscreen lotion；formulation development

目录

1.前言 1

1.1防晒乳液概述 1

1.2天然植物防晒剂概述 1

1.3特纳卡粉末概述 2

1.4国内外相关研究 3

1.5研究目的及意义 4

2.材料与方法 5

2.1实验原料及设备 5

2.1.1实验原料 5

2.1.2实验设备 5

2.2实验方法与技术 6

2.2.1粉末亲水亲油性考察 6

2.2.2防晒乳液制备 7

2.2.3显微镜观察 7

2.2.4稳定性评价 8

2.2.5吸光度测试 8

2.2.6SPF值测试 8

3.结果与讨论 9

3.1特纳卡粉末性质初探 9

3.1.1单独粉末性质研究 9

3.1.2在乳液配方体系中粉末性质研究 9

3.1.3在Pickering乳液中粉末性质研究 11

3.2含特纳卡粉末的防晒乳液基础配方开发 11

3.2.1油脂筛选 12

3.2.2乳化剂筛选 特纳卡粉末的防晒乳液配方开发研究:http://www.chuibin.com/huaxue/lunwen_205249.html