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1、第44卷,第4期工程塑料應用Vol.44,No.4272016年4月ENGINEERINGPLASTICSAPPLICATIONApr.2016doi:10.3969/j.issn.1001-3539.2016.04.006*燃料電池用納米改性聚苯并咪唑陰離子交換膜的制備1,21,21,21,21,21,2汪稱宇,儲富強,林本才,馮天英,袁寧一,丁建寧(1.常州大學材料科學與工程學院,江蘇常州213164;2.江蘇省光伏科學與工程協(xié)同創(chuàng)新中心,江蘇常州213164)摘要:以環(huán)氧氯丙烷和1–甲基咪唑為原料制備新型離子液體(IL),
2、以IL為原料對氧化石墨烯(GO)進行表面修飾制備離子液體功能化氧化石墨烯(IL–GO),以IL–GO為添加劑制備基于含氟聚苯并咪唑(FPBI)復合膜。研究了IL–GO的含量對復合膜的熱穩(wěn)定性、力學強度、離子電導率、離子交換容量(IEC)、吸水率、溶脹度和耐堿性等性能的影響。研究結果表明,復合膜的IEC、離子電導率和拉伸性能都隨著IL–GO含量的增加而增大,當IL–GO含量為30%時其拉伸應力和拉伸彈性模量分別達到77.5MPa和1.95GPa,在80℃下,其最大離子電導率可達72.3mS/cm,然而復合膜的熱穩(wěn)定性并沒隨著IL–
3、GO含量的增加而改變。FPBI/IL–GO復合膜具有良好的穩(wěn)定性,該系列陰離子交換膜有望在堿性陰離子交換膜燃料電池中得到應用。關鍵詞:環(huán)氧氯丙烷;離子液體;聚苯并咪唑;氧化石墨烯;陰離子交換膜中圖分類號:TQ327.3文獻標識碼:A文章編號:1001-3539(2016)04-0027-04SynthesisofPolybenzimidazole/Nano-ParticlesHybridAnionConductingMembranesUsedforFuelCell1,21,21,21,21,21,2WangChenyu,ChuF
4、uqiang,LinBencai,F(xiàn)engTianying,YuanNingyi,DingJianning(1.SchoolofMaterialsScienceandEngineering,ChangzhouUniversity,Changzhou213164,China;2.JiangsuCollaborativeInnovationCenterofPhotovolaticScienceandEngineering,Changzhou213164,China)Abstract:Imidazolium-basedionicliq
5、uid(IL)wassynthesizedfromepichlorohydrinand1–methylimidazole,andionicliquidfunctionalizedgrapheneoxide(IL–GO)wasobtainedfromILandgrapheneoxide(GO).DifferentcontentofIL–GOwasincorporatedintopolybenzimidazole(FPBI)toinvestigatethecontenteffectonthepropertiesofcomposite
6、membranes.TheeffectofcontentofIL–GOonthethermalstability,mechanicalstrength,ionicconductivity,ionexchangecapacity(IEC),waterabsorption,swellingdegreeandalkaliresistanceperformanceofcomposite?lmwereinvestigated.TheresultsshowthatasthecontentofIL–GOincreases,thepropert
7、iesofthecompositemembranes,suchasprotonconductivity,IECandtensilepropertiespresentanincreasevariation.WhenIL–GOcontentis30%,itstensilestressandtensileelasticmodulusreach77.5MPaand1.95GParespectively.Under80℃,itsmaximumionicconductivityreachupto72.3mS/cm.However,theth
8、ermalstabilityofthecompositemembranesdon’tdramaticallychange,andthecompositemembranesshowanexcellentalkalinestability.Thisinvestiga