新開發導電塗層控制海生物附著之研究

Control the Marine Biofouling by New Developed Conductive Coatings

本研究之目的在以導電塗料於外加陽極電位下，以電解海水中之NaCl使生成自由氯，來抑止海生物附著。本研究之導電塗料以矽酸鹽樹脂為黏著劑，添加3～5 µm石墨粉、鋅粉，以一定配比所形成之導電塗料，本研究實驗之方法是將導電塗料塗覆載試片表面，分別以定電流、定電壓在固定時間量測自由氯之生成，找出電解生成自由氯之最佳條件，且塗層不易因陽極反應而破壞，在水溶液中也有良好的耐久度。本實驗採用天然海水進行電解實驗，並在興達火力發電廠進行現場施工及現場實驗。

The purpose of this study was to develop a conductive coating that can be used as electrode to produce free chlorine to prevent marine biofouling by applying an anodic potential in the seawater. The binder for the conductive coating was silicate resin. The coating is graphite powders having particle size 3~5 µm. In the electric resistivity test, the conductive coating which has lowest electric resistivity 0.08 Ω·cm. The conductive coating addition graphite as anode can produce optional free chlorine and has good durability. The constant current or potential to produce free chlorine at constant time, and the best electrode for using were determined in Shin -Der Power Plant.