카프로락톤기 함유 90% 고형분인 아크릴수지의 하이솔리드 도료에의 적용

서지정보

ㆍ발행기관 : 한국유화학회 ㆍ수록지정보 : 韓國油化學會誌 / 24권 / 2호
ㆍ저자명 : 박홍수, 양인모, 김승진, 김영근, 정충호

영어 초록

In order to prepare high-solid coatings, acrylic resins, HSCs [poly (EA/EMA/2-HEMA/CLA)] that contain 90% solid, were synthesized by copolymerization of ethyl acrylate (EA), ethyl methacrylate (EMA), 2-hydroxyethyl methacrylate (2-HEMA) and caprolactone acrylate (CLA). The high-solid coatings named as CHSCs (HSCs/HDI-trimer) were prepared by the curing reaction between the acrylic resins containing 90% solid contents and the isocyanates (HDI-trimer) curing agent room temperature. The curing behavior and various properties were examined on the film coated with the both high-solid coatings. The glass transition temperatures (Tg) of CHSCs increased proportionally with increasing the predicted Tg value by Fox equation, and had nothing to do with the solid contents. The prepared film showed good properties for 60˚ specular gloss, impact resistance, cross-hatch adhesion and heat resistance, and bad properties for pencil hardness, drying time, and pot-life. Among the film properties, the heat resistance was very excellent and could be explained by the introduction of functional monomers of CLA.

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