과제정보
본 연구는 2019년 국토교통부의 국토교통기술촉진연구사업(과제번호: CTAP-C153202)의 일환으로 수행된 연구임을 밝히며 이에 감사를 드립니다.
To prepare the good-adherent and weather-resistant acrylic resin coatings, acrylic resin was prepared by a radical polymerization. Glass transition temperature(Tg) of the acrylic copolymer was fixed at 30℃ and the contents of tertiary amine monomer(DMAEMA) was varied to be 5, 10, 15, 20 wt% respectively. γ-Glycidoxypropyltrimethoxysilane(GPTMS) containing epoxy group was used for curing agents and di-n-butyltindilaurate(DBTDL) was used for drying accelerator. The equivalent ratio of amine to epoxy was 1:1. The prepared coatings exhibited excellent adhesion to various substrates, and various physical properties of the coatings were satisfactory. The gloss retention and color difference were improved at low tertiary amine concentration. The coatings containing 10wt% tertiary amine concentration have especially good weather resistant properties.
본 연구는 2019년 국토교통부의 국토교통기술촉진연구사업(과제번호: CTAP-C153202)의 일환으로 수행된 연구임을 밝히며 이에 감사를 드립니다.