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  • 09월 04일 17시 이후 : 초록수정 불가능, 일정확인 및 검색만 가능

제114회 대한화학회 학술발표회, 총회 및 기기전시회 안내 Self-healing Polymer Coatings in Corrosive Environments

2014년 8월 28일 15시 39분 37초
POLY1-5 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
목 10시 : 42분
고분자화학 - Current Trends in Self-healing Polymeric Materials
저자 및
POSCO 기술연구원 강재2연구그룹, Korea
Self-healing polymer coatings, at a very simplistic level, mimic the self-healing nature of skin in living systems. Polymer coatings are commonly applied to metal substrates to prevent corrosion in aggressive environments such as high humidity and under salt water. Once the polymer coating has been breached, for example due to cracking or scratches, it loses its effectiveness, and corrosion can rapidly propagate across the substrate. The self-healing system we will describe prevents corrosion by healing the damage through a healing reaction triggered by the actual damage event. The anti-corrosion properties of the self-healing polymer on metal substrates are investigated by corrosion resistance and electrochemical tests as well as microscopic observation. To confirm the stability of healing agent in coating solution, thermomechanical properties of healing agent containing microcapsules are demonstrated by the first use of a silicone microcaptilever. Even after scratch damage completely through the substrate, the coating is able to heal, while control samples which do not include all the necessary healing components reveal rapid corrosion propagation. This self-healing coating solution can be easily applied to most substrate materials, and is compatible with most common polymer matrices. Due to the environmental stability of PDMS poly-condensation, this coating may be used in severe environments such as high humidity, marine, and aerospace applications. Furthermore, the self-healing coatings are highly effective for forming an anti-corrosion barrier.