石墨烯改性环氧树脂过程中快速纯化功能化石墨烯的方法  

A Rapid Purification Method of Functionalized Graphene in the Process of Modified Epoxy Resin with Graphene

作　　者：史军华[1] 胡伟达[2] 陈宪宏[2] SHI Junhua;HU Weida;CHEN Xianhong(School of Packaging and Materials Engineering,Hunan University of Technology,Zhuzhou Hunan 412007,China;School of Metallurgy and Materials Engineering,Hunan University of Technology,Zhuzhou Hunan 412007,China)

机构地区：[1]湖南工业大学包装与材料工程学院,湖南株洲412007 [2]湖南工业大学冶金与材料工程学院,湖南株洲412007

出　　处：《湖南工业大学学报》2017年第3期69-74,共6页Journal of Hunan University of Technology

基　　金：国家自然科学基金资助项目(51374102);湖南省自然科学基金资助项目(14JJ5020);湖南省教育厅创新平台开放基金资助项目(16K025)

摘　　要：利用电荷平衡原理,在功能化石墨烯改性环氧树脂的过程中,设计了一种通过添加少量电解质溶液破坏功能化石墨烯体系的电荷平衡,以加速功能化氧化石墨烯的沉降速率,从而在低速离心条件下快速去除双酚A(BPA)功能化石墨烯(BPA-GO)中存在的过量BPA的方法。同时,采用传统的透析法与之进行对比实验,选用红外光谱仪、紫外-可见分光光度计对两种方法的纯化效果进行了分析,且采用离心分离法探讨了转速对所提方法分离效果的影响。结果表明,所提出的纯化方法对样品的结构没有产生影响,且所提方法相比于传统的透析法,不仅纯化效率较高、效果较好、对设备要求较低,而且具有适用于工业化生产的优点。Based on the charge balance theory,in the course of modified epoxy resins with function-graphene,anew purification method has been proposed by adding a slight amount of electrolyte to destroy the charge balance ofthe function-graphene,thus accelerating the deposition rate of functionalized graphene oxide,and rapidly removing theexcess BPA of the BPA functioned graphene(BPA-GO)under a low speed centrifugation.At the same time,a contrastexperiment has been carried out with the traditional dialysis method adopted,and an analysis of the purification effect ofthe two methods has been made by using infrared spectroscopy and UV VIS spectrophotometer,followed by a tentativeinvestigation into the effect of rotating speeds on the separation efficiency of the method by using centrifugal separation.The results show that the proposed method has no negative effects on the structure of the samples.Compared with the traditional method,the dialysis method exhibits its own advantages,with a high purification efficiency,low equipmentrequirements,and practical feasibility of industrial production.

关 键 词：功能化石墨烯 双酚A 纯化 电荷平衡 

分 类 号：TQ342.743[化学工程—化纤工业]