专利发明人：朱红祥,何辉,王磊,王双飞,周航
摘要：【原文】The present invention provides a bionic fiber adsorptive material with multi-adsorption sites and a preparation method and use thereof, and the material is rich in multi-adsorption sites (N, O and S). The material is obtained by blending three polyethyleneimine polymers modified by multifunctional groups respectively with a carboxylated nanocellulose and graphene oxide, then adopting a coaxial spinning method based on a principle of imitating spider spinning, and then adopting a post-crosslinking technology. The material has a multilayer structure with the nanocellulose as a skeleton, the graphene oxide as an outer layer, and the three polyethyleneimine polymers modified by the multifunctional groups respectively as an inner layer, and a connection among the layers is a chemical bond connection. Densities of N, O and S adsorption sites of the material according to the present invention are all higher than 5 mmol/g.
本发明提供了一种具有多吸附位点的生物纤维吸附材料及其制备方法和应用，该材料富含多吸附位点（N、O和S）。通过将三种分别经过多功能基团修饰的聚亚乙基胺聚合物与羧化纳米纤维素和氧化石墨烯混合，然后采用基于模仿蜘蛛纺丝原理的同轴纺丝方法，再采用后交联技术得到。该材料具有纳米纤维素作为骨架、氧化石墨烯作为外层，以及三种分别经过多功能基团修饰的聚亚乙基胺聚合物作为内层的多层结构，层间的连接为化学键连接。根据本发明的材料中N、O和S吸附位点的密度均高于5mmol/g。
