强酸碱环境下玻璃包覆纯铜微丝的腐蚀行为

Corrosion behavior of glass-coated pure copper microwires under strongly acidic and alkali conditions

采用熔融纺丝法制备了玻璃包覆纯铜微丝,对微丝表面玻璃包覆层的去除进行了实验研究,评价了微丝在氢氟酸和熔融氢氧化钠中的腐蚀行为,分析了玻璃包覆纯铜微丝在强酸和强碱中的耐腐蚀性能,探讨了其腐蚀机理.研究表明:氢氟酸和熔融氢氧化钠都能用于微丝表面玻璃包覆层的去除,室温下氢氟酸去除厚度为10μm的玻璃包覆层的时间大约为150 s,熔融氢氧化钠大约需要10 s;玻璃的成分和结构是影响玻璃包覆纯铜微丝耐腐蚀性能的重要因素.

The glass-coated pure copper microwires were prepared by melt spinning method, and a study on removing the glass coat was carried out by experiment. The corrosion behavior of the microwires in aqueous HF solution and melting NaOH were investigated respectively, and the anti-corrosion property of glass-coated pure copper microwires in strongly acid and strongly alkali were analyzed with the corrosion mechanism being discussed. The results showed that the glass coat could be removed using aqueous HF solution or melting NaOH with about 150 seconds in aqueous HF solution and only 10 seconds in melting NaOH for the glass coat with thickness in 10μm, and composition and structure of glass were main factors to determine anti-corrosion property of glass-coated pure copper microwires.