CAJ | 학술논문

研究了基于微孔聚四氟乙烯(PTFE)的复合方式,通过将自制ABPSH40树脂--N,N-二甲基乙酰胺溶液流延在用液相介质表面处理法改性过的聚四氟乙烯微孔膜表面上,制得了均匀的ABPSH40/PTFE增强复合质子交换膜.采用扫描电镜(SEM)观察复合膜的表面及断面形态,采用气相色谱仪(GC)测定了复合膜的甲醇渗透性,利用交流阻抗(AC)测定了膜的质子传导率.结果表明,ABPSH40树脂在复合膜内分布均匀,而且PTFE膜微孔填堵充分;复合膜具有优越的尺寸稳定性,较低的甲醇渗透率和接近Nafion膜的质子传导率,和ABPSH40均质膜进行比较后的优点明显.ABPSH40/PTFE增强复合质子交换膜可望成为一种直接甲醇燃料电池用质子交换膜.
연구료기우미공취사불을희(PTFE)적복합방식,통과장자제ABPSH40수지--N,N-이갑기을선알용액류연재용액상개질표면처리법개성과적취사불을희미공막표면상,제득료균균적ABPSH40/PTFE증강복합질자교환막.채용소묘전경(SEM)관찰복합막적표면급단면형태,채용기상색보의(GC)측정료복합막적갑순삼투성,이용교류조항(AC)측정료막적질자전도솔.결과표명,ABPSH40수지재복합막내분포균균,이차PTFE막미공전도충분;복합막구유우월적척촌은정성,교저적갑순삼투솔화접근Nafion막적질자전도솔,화ABPSH40균질막진행비교후적우점명현.ABPSH40/PTFE증강복합질자교환막가망성위일충직접갑순연료전지용질자교환막.
ABPSH40/PTFE composite membranes were prepared by casting ABPSH40 resin solution onto the surface of modified porous PTFE films. Microstructure of the composite membranes was studied by SEM, the methanol permeability was analyzed by GC, and the proton conductivity was investigated by AC impedance. Results showed that the ABPSH40 resin is well plugged into the micropores of PTFE. Compared with ABPSH40 membranes, the dimensional stability and mechanical strength of the composite membranes are both apparently improved. The ABPSH40/PTFE composite membranes have lower methanol permeability and a comparable proton conductivity with Nafion membrane. It is prospectively that the ABPSH40/PTFE composite membranes can be used in DMFC.