太仓万丰村半泾河古船船材主要离子的测试研究

Analysis of major ions from an ancient ship found in BanJing River at Wan Feng Village of TaiCang

为做好太仓万丰村半泾河古船的脱盐保护工作,本研究检测了半泾河古船的第6、7隔舱板和第8隔舱龙骨及船板下淤泥样品中主要元素和离子的含量,并用电导率仪测量样品在脱盐过程中电导率的变化情况。检测结果表明,木材和淤泥中的主要元素含量高于对照样品,且主要以可溶性盐的状态存在;木材腐蚀程度也与其离子含量有关,腐蚀程度愈严重,样品的离子含量也愈大;经过脱盐处理后,脱盐溶液的电导率值降低至较低水平。测试数据将对今后古船脱盐工作有一定的指导意义。

The No. 6 and 7 bulkheads and the keel of the No. 8 bulkhead, as well as silt under the shipboard of an ancient ship found in the Banjing River were collected in order to desalt them for conservation purposes. The con-centrations of major elements and ions were measured. The change of electrical conductivity during the desalting process was measured with an electrical conductivity meter. Results showed that concentration of major ions in the wood and silt was higher than that of control samples. The ions are mainly soluble salts. The degree of corrosion of the wood was positively correlated with content of ions inside the higher content of the io n s , the more corrosion . After desalting of the samples, electrical conductivity in the desalted solution was seen to decrease. Such testing re-sults could provide certain guidance to future desalting of ancient ships.