Contact angles and wettability of human skin.
Contact angles and wettability of human skin.
复制标题
人体皮肤的接触角和润湿性。
DOI：
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发表时间：
1971
期刊：
影响因子：
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通讯作者：
H. Schott
中科院分区：
文献类型：
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作者：
H. Schott
测定了丙酮提取人体表面脂质前后几种液体与人体皮肤的接触角。皮肤的临界表面张力是通过外推液体接触角的余弦作为其表面张力的函数来确定的。未处理和提取皮肤的临界表面张力在22-30达因/厘米范围内。这些较低的数值可能是由于皮肤上的沟壑和液滴下的沟壑中被困的少量空气导致接触角减少，而不是由于皮肤表面的低自由能或极性。苯扎氯铵和护手霜的使用减少了水与皮肤的接触角。
The contact angles of several liquids on human skin were measured before and after extraction of surface lipids with acetone. The critical surface tension of the skin was determined by extrapolating the cosines of the contact angles of the liquids as a function of their surface tensions to unity. The critical surface tensions for untreated and extracted skin were in the range of 22-30 dynes/cm. These low values are probably caused by reductions in contact angles resulting from furrows in the skin and by small amounts of air trapped at the furrows underneath the drops rather than by low free energy or polarity of the skin surface. Application of benzalkonium chloride and of a hand lotion reduced the contact angles of water on the skin.