CAJ | 학술논문

以烷基环己酮、异戊二烯为原料，合成一种带支链的长链二元羧酸，采用红外光谱仪FT-IR、热重分析仪TG进行表征，研究了该二元羧酸氨解pH及其铵盐浓度对工作电解液性能的影响，测试了支链长链二元羧酸铵的溶解度和电化学性能．实验结果表明：FT-IR分析证明产物为羧酸类物质，碳链中含有-CH2链单元；TG分析证明产物为多组分混合物，且热稳定性好；随着支链长链二元羧酸氨解pH增大，工作电解液的闪火电压先增大后减小，电导率逐渐增大，当氨解pH为7.4～8.2，闪火电压可保持较高水平（最高480 V）；随着支链长链二元羧酸铵浓度从1％增大至20％时，闪火电压从507 V下降到471 V，电导率从0.05 mS· cm－1升到2.20 mS· cm－1；支链长链二元羧酸铵盐在乙二醇的溶解度比癸二酸铵盐提高4倍，与5％癸二酸铵乙二醇溶液相比，闪火电压提高38 V，可以拓宽电解液的使用温度并使电解液具有高闪火电压和电导率，从而使铝电解电容器的性能得到提高．
이완기배기동、이무이희위원료，합성일충대지련적장련이원최산，채용홍외광보의FT-IR、열중분석의TG진행표정，연구료해이원최산안해pH급기안염농도대공작전해액성능적영향，측시료지련장련이원최산안적용해도화전화학성능．실험결과표명：FT-IR분석증명산물위최산류물질，탄련중함유-CH2련단원；TG분석증명산물위다조분혼합물，차열은정성호；수착지련장련이원최산안해pH증대，공작전해액적섬화전압선증대후감소，전도솔축점증대，당안해pH위7.4～8.2，섬화전압가보지교고수평（최고480 V）；수착지련장련이원최산안농도종1％증대지20％시，섬화전압종507 V하강도471 V，전도솔종0.05 mS· cm－1승도2.20 mS· cm－1；지련장련이원최산안염재을이순적용해도비계이산안염제고4배，여5％계이산안을이순용액상비，섬화전압제고38 V，가이탁관전해액적사용온도병사전해액구유고섬화전압화전도솔，종이사려전해전용기적성능득도제고．
Branched long-chain dibasic acids were synthesized by using alkyl cyclohexanone and isoprene as raw materials, and characterized by infrared spectroscopy FT-IR and thermo gravimetric analyzer TG .The effect of the dibasic acids ammonolysis pH and concentration on the performance of the working electrolyte were studied . The solubility and electrochemical properties of branched long-chain dibasic acid ammonium were tested .FT-IR showed that the products were carboxylic acids , carbon chain containing -CH2; TG showed that the products were multi-component mixture , and had good thermal stability .With the increase of the dibasic acids am-monolysis pH , the working electrolyte's sparking voltage increased and then decreased , conductivity increased . The sparking voltage would keep a high level (480 V) when the ammonolysis pH was 7.4 ~8.2.As the branched long-chain dibasic acid ammonium's concentration was increased from 1%to 20%, the sparking volt-age drops from 507 V to 471 V, conductivity from 0.05 mS · cm-1 rose to 2.20 mS · cm-1 .The branched long-chain dibasic acid ammonium's solubility in ethylene glycol was 4 times higher than ammonium sebacate , and compared with 5%ethylene glycol solution of ammonium sebacate , sparking voltage improved 38 V.This can improve the sparking voltage and conductivity of the working electrolyte , and broaden the electrolyte temper-ature, and improve the properties of the aluminum electrolytic capacitor .