탄소나노튜브를 이용한 풍력발전기 블레이드 코팅제 제조 및 특성

Abstract

Electrical energy is an important energy source in the present age. In the past, fossil fuels such as coal and petroleum were used, but recently, efforts are being made to increase the use of renewable energy such as wind power and solar power. Wind power is one of the fastest growing areas of renewable energy. As wind turbines become more diversified and larger, blades are also getting heavier and lengthening. Therefore, researches for solving the problem of the wind turbines due to the enlargement are continuing. Especially, surface characteristics such as surface roughness and surface condition of wind turbine blades have been studied on the amount of wind power generation and O&M(Operation & Maintenance) period. Nano coating is a coating using nano material. It is used in many fields such as automobile, aerospace, medical and the like, because it has excellent hardness and abrasion resistance. Among various nano materials, carbon nanotubes have excellent electrical, thermal and mechanical properties, and research is ongoing to apply them. Therefore, in this study, It investigated of the effects on the coating surface as the particle size of carbon nanotube, mixing ratio, type of adhesive. For compared and analyzed of carbon nanotube coating surface characteristics such as contact angle and roughness, three types of carbon nanotubes of different sizes were used. In order to confirm the effect of adhesive on the carbon nanotube coating and the coating surface, distilled water, PVA, and epoxy resin were used. Contact angle, SEM, surface roughness measurement experimental result, the best coating was identified as an epoxy resin based on carbon nanotube coating. Therefore, it is considered that carbon nanotube coating based on on epoxy resin is most suitable for coating of wind turbine blades.