摘要
印染废水具有排放量大、解决难度高等特点,是废水治理工艺研究的焦点之一。纤维素是纤维状的、多毛细管的高分子聚合物,有着多孔性和大表面积的特性,可以作为吸附材料用于印染废水的处理。但是天然的纤维素的吸附能力较小,一定要通过化学改性,令它具有更强或更多的功能团,才能变成性能优良的吸附材料。目前对于纤维素的阴离子改性、阳离子改性及双变性改性已经取得了很多研究成果,但是由于纤维素本身结构的特点,对于纤维素的改性往往存在反应速度较慢,取代度不高等缺点。本文拟将超声合成法应用于纤维素改性,探索超声功率、超声时间、溶剂类型等因素对改性纤维素合成速率,取代度方面的影响。
Printing and dyeing wastewater is one of the focuses of wastewater treatment technology because of its large discharge and high difficulty to solve. Cellulose is a kind of fiber-like, multi-capillary macromolecule polymer with porous and large surface area. It can be used as adsorbent for the treatment of printing and dyeing wastewater. However, natural cellulose has a small adsorption capacity, so it must be chemically modified to make it have stronger or more functional groups, in order to become a good adsorption material. At present, a lot of research results have been achieved on the anionic modification, cationic modification and dual-modified modification of cellulose. However, due to the structural characteristics of cellulose itself, the modification of cellulose often has the disadvantages of slow reaction speed and low degree of substitution. In this paper, the ultrasonic synthesis method is applied to cellulose modification, and the effects of ultrasonic power, ultrasonic time and solvent type on the rate of cellulose synthesis and degree of substitution are explored.
作者
闫国伦
施磊
吕泽
Yan Guolun;Shi Lei;Lv Ze(Department of Environmental and Materials Engineering,Jiangyin Vocational Technical College,Jiangsu Jiangyin 214405)
出处
《化工时刊》
CAS
2019年第12期14-16,共3页
Chemical Industry Times
基金
江阴职业技术学院院级课题项目
关键词
超声合成
纤维素
印染废水
ultrasonic synthesis
cellulose
printing and dyeing wastewater
