论文部分内容阅读
本工作采用元素分析,比表面积测定,静态吸附、动态吸附、中和滴定、pH曲线测定、热分析、扫描电镜、红外光谱、X-射线光电子能谱(ESCA)、X-射线衍射分析等技术较系统地研究了我们首次研制的半碳化粘胶基阳离子交换纤维(SCVCIEF)的结构与性能。结果表明,此类新型阳离子交换纤维具有交换容量高,再生性能好等特性;SCVCIEF-C_1的动态交换容量为5.64毫克当量/克,SCVCIEF-b_1为5.7毫克当量/克;再生交换二十次后SCVCIEF-C_1的交换容量仅下降1.4％,SCVCIEF-b_1下降5.8％;交换纤维比表面积大,吸(脱)附速度快,耐酸、耐水,耐有机溶剂,耐热性良好,碱性介质中交换温度对纤维交换容量影响较大。
In this work, elemental analysis, specific surface area measurement, static adsorption, dynamic adsorption, neutralization titration, pH curve determination, thermal analysis, scanning electron microscopy, infrared spectroscopy, X-ray photoelectron spectroscopy (ESCA), X-ray diffraction analysis and other techniques The structure and properties of the semi-carbonized viscose-based cation exchange fiber (SCVCIEF) we developed for the first time were systematically investigated. The results show that the new type of cation exchange fiber has the characteristics of high exchange capacity and good regeneration performance. The dynamic exchange capacity of SCVCIEF-C_1 is 5.64 mg eq / g and SCVCIEF-b_1 is 5.7 mg eq / g. SCVCIEF-C_1 exchange capacity decreased by only 1.4%, SCVCIEF-b_1 decreased by 5.8%; exchange fiber surface area, suction (off) with fast, acid, water, organic solvent resistance, good heat resistance, alkaline medium exchange Temperature on the fiber exchange capacity greater impact.