CAJ | 학술논문

用电化学阻抗谱技术(electrochemical impedance spectroscopy,EIS),研究了铜/低密度聚乙烯(Cu/LDPE)复合材料在模拟宫腔液中的腐蚀行为,根据EIS特征建立等效电路模型并进行数据拟合分析,获得了复合材料及其表层对应的界面电化学信息参数,如双电层电容、电荷转移电阻、Warburg阻抗等,通过比较两种材料表层状态随时间的变化,探讨了复合材料中铜颗粒尺寸对复合材料腐蚀的影响.结果表明,纳米复合材料比微米复合材料的腐蚀速率低,且材料表层不易沉积腐蚀产物,更适合作为新型宫内节育器材料.
용전화학조항보기술(electrochemical impedance spectroscopy,EIS),연구료동/저밀도취을희(Cu/LDPE)복합재료재모의궁강액중적부식행위,근거EIS특정건립등효전로모형병진행수거의합분석,획득료복합재료급기표층대응적계면전화학신식삼수,여쌍전층전용、전하전이전조、Warburg조항등,통과비교량충재료표층상태수시간적변화,탐토료복합재료중동과립척촌대복합재료부식적영향.결과표명,납미복합재료비미미복합재료적부식속솔저,차재료표층불역침적부식산물,경괄합작위신형궁내절육기재료.
The corrosion behavior of Cu/LDPE composites in the simulated uterine solution(SUS) was monitored using electrochemical impedance spectroscopy(EIS).According to the EIS characteristics,the equivalent circuits were established.The electrochemical parameters of the composites and its interface were obtained, including double layer capacitance,charge transfer resistance,Warburg impedance and so on.By comparing the change of interface stats of two composites with time,the influence of copper particles on composites corrsion was discussed.The results indicated that the corrosion rate of nanocomposite is lower than that of microcomposite and there is less deposit on the surface of the nanocomposite.The nanocomposite is a superior material to make new type intrauterine device.