Abstract： The salt sludge was modified with sodium stearate by wet process. The influence of modification temperature, modification time and surfactant dosage was studied. The modified salt sludge was characterized by active index, contact angle and IR. The results indicate that the active index of modified salt sludge is 97.70%, the contact angle is 126.5°at the optimum condition. The modified slat sludge changes from hydrophilic to hydrophobic completely. The sodium stearate is attached to the salt sludge by chemical bonds.

Keywords: salt sludge; sodium stearate; modification; active index; contact angle

中图分类号：TB34        文献标志码：A

文章编号：1008-5548(2015)02-0083-04

DOI:10.13732/j.issn.1008-5548.2015.02.021

收稿日期：2014-07-07， 修回日期：2014-08-18，在线出版时间：2015-04-17。

第一作者简介：杨杰（1989—），男，硕士研究生，研究方向为材料工程。E-mail：794156477@qq.com。

通信作者简介：钱海燕（1969—），女，博士，副教授，研究方向为可控粉体材料的制备。 E-mail：qianhaiy@163.com。