【摘要】 采用在PMMA板上涂敷疏水层的方法，提高防晒剂颗粒在涂抹时的分散性，解决防晒样品在PMMA板表面难以涂抹均匀和防晒喷雾油膜形成困难的问题。根据防晒霜样品中油相的类型（酯类或硅油类），选取疏水物质肉豆蔻酸异丙酯（IPM）或聚二甲基硅氧烷（PDMS），涂敷在疏水的PMMA板表面，形成疏水涂敷层，再涂抹相应的防晒霜样品，测得体外与人体SPF值一致性高。更多还原

【Abstract】 In order to smear sunscreen evenly on the surface of PMMA plates and form intact films for spray sunscreen samples, the PMMA plate was coated with a hydrophobic layer to improve the dispersion of sunscreen particles during application. According to the types of oil phase in the sunscreen(ester or silicone oil), isopropyl myristate(IPM) or polydimethylsiloxane(PDMS) was coated on the hydrophobic PMMA plate to test the corresponding sunscreen, and the obtained SPF tested in vitro were consistent with SPF tested in vivo.更多还原