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导电高分子膜包覆YBa2Cu3O7超导体抗环境作用的研究
Conductive Polymer Encapsulation of YBa2Cu3O7 for Protection Against Reactive Environments
【摘要】 通过电化学途径和化学途径在YBa_2Cu_3O_7超导体表面制备了导电高分子聚吡咯膜,用以保护超导体不受环境作用的影响,实验结果发现电化学过程能破坏YBa_2Cu_O_7的超导性,而采用化学法制备的聚吡咯和聚氯乙烯混和材料包覆在YBa_2Cu_3O_7表面后,超导体不仅保持原有超导性,而且有很好的保护超导体免遭环境中酸和水作用的能力。
【Abstract】 Conductive polypyrrole(PPy ) films were prepared on the surface of YBa2Cu3O7superconductors through electrochemical synthesis or chemical method to prevent YBa2CusO7from corroding in reactive environments.The resuIts showed that the electrochemical poly-merization destroyed the superconductivity of YBa2Cu3O7,whereas the chemical coating ofPPy/PVC on YBa2h3O7 did not affect the superconductivity.Furthermore,the chemicalPPy/PVC coatings could greatly improve the superconductors stability in water and acid.
【关键词】 YBa_2Cu_3O_7;
超导体;
保护;
聚吡咯;
聚氯乙烯;
【Key words】 YBa2CuO7; superconductor; protection; polypyrrole; polyvinylchloride;
【Key words】 YBa2CuO7; superconductor; protection; polypyrrole; polyvinylchloride;
- 【文献出处】 应用化学 ,CHINESE JOURNAL OF APPLIED CHEMISTRY , 编辑部邮箱 ,1994年04期
- 【分类号】TM26
- 【被引频次】1
- 【下载频次】76