烟气净化用滤料表面改性及其性能  

Research on surface modification and properties of filter material for flue gas purification

作　　者：刘娜 陈香云[1] 张永锋[2] 吕文静 焦志颖 LIU Na;CHEN Xiangyun;ZHANG Yongfeng;LüWenjing;JIAO Zhiying(College of Textile and Light Industry,Inner Mongolia University of Technology,Hohhot 010080,China;College of Chemical Engineering,Inner Mongolia University of Technology,Hohhot 010080,China)

机构地区：[1]内蒙古工业大学轻工与纺织学院,呼和浩特010080 [2]内蒙古工业大学化工学院,呼和浩特010080

出　　处：《现代纺织技术》2022年第1期162-168,共7页Advanced Textile Technology

基　　金：内蒙古自治区研究生教育创新计划资助项目(SZ2020064)。

摘　　要：为改善过滤材料的使用性能,满足焦化厂除尘工况的使用要求,选用聚四氟乙烯乳液对玄武岩针刺滤料(X)、氟美斯针刺滤料(F)、玄武岩与氟美斯复合针刺滤料(XF)进行表面改性,并根据相关标准对滤料改性前后的热学性能、耐氧化性能、抗静电性能进行了测试。结果表明:3种滤料表面改性前后均为放热反应,表面改性前后热分解外推起始温度均在350℃左右,焦炉烟气平均温度在230℃,均高于使用温度,符合使用要求;经氧化剂处理,3种滤料表面改性后断裂强力损失率均值较小,说明抗氧化性能改善;表面改性前X滤料的感应静电等级为A级、F滤料的感应静电等级为A级、XF滤料的感应静电等级为C级,表面改性后X滤料、F滤料、XF滤料的感应静电等级均为B级。In order to enhance the properties of filter material and meet the requirements of dust removal in coking plant,this study uses PTFE emulsion to modify the surface of basalt needle-punched filter material(X),the FMS needle-punched filter material(F),the basalt and FMS needle-punched filter material(XF).According to relevant standards,thermal properties,oxidation resistance and antistatic properties of the filter material before and after the modification are tested.The results show that three kinds of filter materials are all exothermic reactions before and after surface modification.The extrapolated initial temperatures of thermal decomposition before and after surface modification are about 350℃,the average temperature of coke oven flue gas is 230℃,all higher than the operating temperature,which meets the requirements for use.After oxidant treatment,the average loss rate of breaking strength of three filter materials is small after surface modification,indicating that the oxidation resistance has been improved.Before surface modification,the induction electrostatic level is A for X filter material,A for F filter material,C for XF filter material,and B for X filter material,F filter material,and XF filter material after surface modification.

关 键 词：针刺滤料 表面改性滤料 表面改性 热学性能 耐氧化性能 抗静电性能 

分 类 号：TS176[轻工技术与工程—纺织材料与纺织品设计]