改性腈纶对合成单宁的吸附性能研究  

Adsorption performance of synthetic tannin on modified acrylic fiber

作　　者：孟春丽 董亚彬[1] 黄锦 洪东兴 曹机良 MENG Chunli;DONG Yabin;HUANG Jin;HONG Dongxing;CAO Jiliang(Department of Materials and Chemical Engineering,Henan University of Engineering,Zhengzhou 450007,China;Henan University of Engineering,Henan Engineering Laboratory of New Textiles Development,Zhengzhou 450007,China)

机构地区：[1]河南工程学院材料与化学工程学院,河南郑州450007 [2]河南工程学院纺织新产品开发河南省工程实验室,河南郑州450007

出　　处：《印染助剂》2019年第11期40-43,共4页Textile Auxiliaries

基　　金：河南省高等学校重点科研项目(19A540001);河南省科技公关计划项目(182102311087);2015年度河南省纺织新产品开发河南省工程实验室开放基金项目(GCSYS201502)

摘　　要：采用三乙烯四胺(TETA)改性腈纶纤维作为阴离子助剂合成单宁的吸附剂,探究了吸附温度、pH和氯化钠用量对改性腈纶吸附合成单宁速率的影响,分析了改性腈纶对合成单宁的吸附热力学,并对吸附热力学曲线进行拟合。结果表明,三乙烯四胺改性腈纶纤维在常温条件下可较快地吸附合成单宁,酸性越强吸附速率越快、吸附量越高;吸附最符合Langmuir模型,说明三乙烯四胺改性腈纶与合成单宁之间以离子键结合为主。Triethylenetetramine(TETA) modified acrylic fibers were used as adsorbents for anionic auxiliaries synthetic tannins. The effects of adsorption temperature, pH and the dosage of sodium chloride on synthetic tannin adsorption rate of modified acrylic fiber were researched. The adsorption thermodynamics of modified acrylic fibers for synthetic tannin was analyzed, and the adsorption thermodynamics curve was fitted.The results showed that triethylenetetramine modified acrylic fibers could adsorb synthetic tannin quickly at room temperature. The stronger the acidity, the faster the adsorption rate and the higher the adsorption capacity. Langmuir model was the best fit for adsorption, indicating that ionic bonding was dominant between triethylenetetramine modified acrylic fibers and synthetic tannins.

关 键 词：腈纶 三乙烯四胺 改性 合成单宁 吸附 

分 类 号：TS193[轻工技术与工程—纺织化学与染整工程]