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Surface Characteristics and Antifouling Performance of Inorganic MnOx-WO3-TiO2 Nanopowder for Self-polishing Copolymer Paint Applications

무기계 MnOx-WO3-TiO2 나노분말의 표면특성 및 자기마모형 수지 적용성 평가

Shin, Byeongkil;Park, Hyun
신병길;박현

  • Received : 2016.03.04
  • Accepted : 2016.04.27
  • Published : 2016.04.30

Abstract

The $MnO_x-WO_3-TiO_2$ nanoscale powders were synthesized by sol-gel method in order to prevent the biological fouling on the ships and offshore structures. Powder characteristics and antifouling performance were investigated with respect to the crystalline, microstructure and surface property for application in self-polishing copolymer resins. The high antifouling activity of $TiO_2$-system biocide was attributed to its redox potential and soluble metal ions originating from tungsten oxides according to the improvements in the powder characteristics. Based on their physio-chemical characterizations, the specific surface areas of powders were about $90m^2/g$ and the grain size was in the region 100 ~ 150 nm. Powder characteristics and surface properties were improved by the addition of $WO_3$. Antifouling performance were analyzed according to their surface properties and static immersion tests to determine the effects of the $TiO_2$-system compounds. The surface of 2 wt. % added sample was clean for 5 month. This may be attributed to the ability of $MnO_x-WO_3-TiO_2$ powders to act as a promoter in antifouling agents.

Keywords

Antifouling agents;Self Polishing Copolymer (SPC) resin;$TiO_2$ nanoscale powders;Tungsten oxides;Anti-fouling Performance

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Acknowledgement

Supported by : 부산대학교