静电自组装PP无纺布单宁吸附材料的制备及性能表征  

Preparation and characterization of modified PP non-woven tannin adsorption material

作　　者：应俏 刘志达[1] 唐辉[1] 罗大伟 李志斌 YING Qiao;LIU Zhi-da;TANG Hui;LUO Da-wei;LI Zhi-bin(Faculty of Chemical Engineering,Kunming University of Science and Technology,Kunming 650224,China;Natural Science Division,Luangnamtha Teacher Training College,Luangnamtha 03000,Laos PDR)

机构地区：[1]昆明理工大学化学工程学院,云南昆明650224 [2]老挝南塔师范学院自然科学部,老挝南塔03000

出　　处：《现代化工》2021年第7期113-117,共5页Modern Chemical Industry

基　　金：国家自然科学基金地区基金资助项目(51167008);校企合作科技基金资助项目(kkk0201705038)。

摘　　要：以聚丙烯(PP)无纺布为主体材料,利用UV辐照接枝聚合在PP无纺布表层引入第1层活性基羧基,然后通过静电自组装技术再向其引入第2层活性基芳香胺基,最后通过芳香胺基的叠氮法对明胶分子进行偶联固定,制备出对单宁具有吸附作用的新型吸附材料。通过对各步反应中间产物和吸附前后吸附材料的傅里叶变换红外光谱与扫描电镜分析,对吸附材料进行表征,最终在PP无纺布上实现各步改性反应与活性分子组装,也证实了该吸附材料对单宁具有较好的吸附能力。Taking polypropylene( PP) non-woven fabric as main material,the first layer of active carboxyl groups is grafted onto the surface of PP non-woven fabric through UV radiation graft polymerization,and then the second layer of active aromatic groups is grafted through electrostatic self-assembly technology.Amine group is finally coupled and fixed to gelatin molecule through azide method of aromatic amine group to prepare a new type of adsorption material that can adsorb tannin.The adsorption material is characterized through analyzing the intermediate product of each step reaction and the adsorption material before and after adsorption by means of Fourier transform infrared spectroscopy and scanning electron microscopy analysis.It is finally confirmed that the modification reaction and the assembly of active molecules on PP non-woven fabric are achieved,and the adsorption material has a good adsorption capacity to tannin.

关 键 词：叠氮化合物 静电自组装 明胶 单宁 吸附选择性 PP无纺布 

分 类 号：TQ050.4[化学工程]