阳离子在头发上的吸附作用及其附着形态的研究

Study of adsorption of some cationics on human hair and forms of adhered matter

通过羊毛布染色及其色差测定研究了阳离子瓜耳胶、聚季铵盐等香波中常用的几种阳离子在羊毛布上的吸附性和累积趋势,并通过扫描电镜研究了阳离子在头发表面上的附着状态。结果表明:分子质量大和分子结构中含有多个极性中心以及正电荷中心的聚合物阳离子如阳离子瓜耳胶和聚季铵盐在羊毛布上吸附性强、沉积多,低分子质量的季铵盐因吸附性弱,累积趋势上阳离子瓜耳胶大于聚季铵盐;阳离子在头发表面的分布状态有不均匀的丝状、粒状和相对均匀的膜状分布等几种不同形式。

The deposition and build-up trend of some cationics that have differences in molecular weight and molecular stucture,such as cationic guar gums and polyquaterniums,were studied by means of wool cloth dying and CIE color difference measurement.It is showed that both cationic guar gums and polyquaterniums which have higher molecular weight and multicenters of polarity and positive charge,have greater trend of deposition on wool cloth than that of quaterniums which have lower molecular weight.It is also showed that the adsorptive power of cationic guar gum is stronger than that of polyquaterniums in terms of accumulating action on wool cloth.The forms of the cationic agents on the surface of human hair were also studied by SEM with forms of filar,granular and relatively uniform film observed.