张超,柳琦杰,戴光泽

• 1:西南交通大学 材料科学与工程学院，四川 成都 610031

摘要(Abstract)：

为提高碳纤维作为生物膜载体对微生物的固着能力，采用电泳法在其表面沉积聚酰胺酸薄膜而得到改性碳纤维，并通过大肠杆菌固着实验、DLVO（Derjaguin-Landan-Verwey-Overbeek）理论计算及挂膜实验评价碳纤维载体的固着能力。实验结果表明：沉积聚酰胺酸后，载体表面粗糙度增加，含氧和含氮官能团的含量提升，固着大肠杆菌数量增加，与微生物之间的总势能明显降低。在3种改性碳纤维中，羧基摩尔比为2.0的载体固着能力最强，每g载体固着3.8 g污泥，是原生碳纤维挂膜量的两倍以上。因此，聚酰胺酸改性碳纤维可作为具有高生物亲和性的载体材料。

关键词(KeyWords)： 碳纤维;聚酰胺酸;微生物固着;DLVO理论

Abstract:

Keywords:

基金项目(Foundation):

作者(Author): 张超,柳琦杰,戴光泽

DOI: 10.3969/j.issn.1003-9015.2020.05.018

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