CAJ | 학술논문

以有机增塑剂聚碳酸丙烯酯(propylene carbonate,PC)为聚合反应溶剂,通过自由基引发原位聚合法制备了有机累托石/聚甲基丙烯酸甲酯(organic-modified rectorite/polymethyl methacrylate,OREC/PMMA)纳米复合凝胶聚合物电解质(nanocomposite gel polymer electrolyte,NGPE).用交流阻抗法分析了凝胶电解质的电性能,并研究了温度对电性能的影响.通过红外光谱分析其组分间的相互作用.用差示扫描量热分析和热失重分析分析凝胶电解质的热稳定性.结果表明:OREC/PMMA组成的NGPE的本体阻抗值随OREC添加量的增加呈现出先减小后增大的趋势,当OREC的添加质量为5%时,NGPE在不同温度下均具有最大的离子电导率(σ).OREC与PC,PMMA及锂盐之间存在一定的相互作用,从结构的角度解释了OREC添加提高体系σ的机理.添加OREC能在一定程度上改善体系的凝胶热稳定性.
이유궤증소제취탄산병희지(propylene carbonate,PC)위취합반응용제,통과자유기인발원위취합법제비료유궤루탁석/취갑기병희산갑지(organic-modified rectorite/polymethyl methacrylate,OREC/PMMA)납미복합응효취합물전해질(nanocomposite gel polymer electrolyte,NGPE).용교류조항법분석료응효전해질적전성능,병연구료온도대전성능적영향.통과홍외광보분석기조분간적상호작용.용차시소묘량열분석화열실중분석분석응효전해질적열은정성.결과표명:OREC/PMMA조성적NGPE적본체조항치수OREC첨가량적증가정현출선감소후증대적추세,당OREC적첨가질량위5%시,NGPE재불동온도하균구유최대적리자전도솔(σ).OREC여PC,PMMA급리염지간존재일정적상호작용,종결구적각도해석료OREC첨가제고체계σ적궤리.첨가OREC능재일정정도상개선체계적응효열은정성.
Organic-modified rectorite/poly (methyl methacrylate)(OREC/PMMA) gel polymer electrolyte, which is a nanocomposite gel polymer electrolyte (NGPE), was synthesized through in situ polymerization with free radical initiator in a solution with an organic plasticizer propylene carbonate (PC) as solvent. The electrical property of the NGPE was determined by the AC impedance. The interaction between the constituents in the NGPE was investigated by infrared spectroscopy. The thermal stability of the gel system was studied by differential scanning calorimetry and thermo-gravimetric analysis. The results show that the bulk impedance of the OREC/PMMA gel electrolyte decreases first and then increases with the increase of the OREC content. There is a maximum value of ionic conductivity for OREC/PMMA with 5% in mass OREC under different temperatures. There are reactions between OREC and PC, PMMA and LiClO4. The mechanism of the increase of conductivity of the OREC/PMMA gel electrolyte by adding OREC is discussed. The addition of OREC can enhance the thermal stability of the gel electrolyte.