摘要
防晒化妆品对太阳光中中波紫外线（UVB）的防御能力用SPF表示，PA作为另一个参数被用来表示对长波紫外线（UVA）的抵抗能力，本文采用带积分球检测器的紫外可见近红外分光光度计，得到市面上常见品牌不同SPF、PA值的防晒产品在280-400nm的透射光谱，研究了防晒产品性能和透光率之间的关系。实验证明该防晒产品性能评价方法简便可行，可用于不同防晒产品防晒指数（SPF）和防晒系数（PA）的测定及评价，结果可靠。
SPF and PA index presents the resistance ability of sunscreen to Uhraviolet B （UVB） and Ultraviolet A （UVA） respectively. The transmittance of common sunsereen samples with different SPF and PA collected from the market was measured by integrating sphere in the wavelength range of 280 -400 nm, the relationship between ultraviolet transmittance and sunscreen ability was researched. The experiments showed that the sunscreen UV resistance evaluation method was simple and feasible, it can be used for the determination of different sunscreen products SPF and UVA performance index （PA） with the reliable results.
出处
《广州化工》
CAS
2016年第19期83-85,共3页
GuangZhou Chemical Industry
基金
福建省自然科学基金资助项目(No.2013J01066)
