Acetoacetoxy기 함유 아크릴수지와 HDI-Trimer에 의한 하이솔리드 도료의 도막물성

• 영문명: Physical Properties of High-Solid Coatings with Acrylic Resins Containing Acetoacetoxy Group and HDI-Trimer
• 발행기관: 한국응용과학기술학회 (구.한국유화학회)
• 저자명: 유혁재(You HyukJae) 정동진(Chung DongJin) 함현식(Hahm HyunSik) 박홍수(Park HongSoo) 김성길(Kim SeongKil)
• 간행물 정보: 『한국응용과학기술학회지』한국유화학회지 제20권 제3호, 237~242쪽, 전체 6쪽
• 주제분류: 공학 > 화학공학
• 파일형태: PDF
• 발행일자: 2003.09.30

영문 초록

The high-solid coatings were prepared by blending the synthesized acrylic resin in the previous paper and hexamethylene diisocyanate-trimer and curing it at room temperature. The characterization of the films of the prepared coatings was performed. The impact resistance, 60^{circ}C specular gloss, cross-hatch adhension, and heat resistance of the films proved to be good, and the pencil hardness and drying time proved to be slightly poor. Especially, there was a remarkable improvement in the heat resistance. This improvement may stem from the regular arrangement of ethyl groups introduced into the acrylic resin. From a viscoelastic measurement using a rigid-body pendulum, curing was accelerated with the Tg value. With the increase in Tg, log damp value was lowered and dynamic viscoelasic Tg of a cured film was increased.

키워드

acrylic resin HDI-trimer curing high-solid coatings