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무황변 Acrylic Urethane 수지의 경화속도에 대한 연구
서차수,박천욱 ( C . S . Suh,T . W . Park ) 한국공업화학회 1994 공업화학 Vol.5 No.4
The catalytic effects of carboxylic acid and dibutyltin dilaurate(DBTL) on the curing rate of acrylic polyol with isocyanate prepolymer were investigated. In this work, reaction of a biuret type aliphatic isocyanate with acrylic polyol follows the second order reaction in the thin film state. Carboxylic acid of acrylic polyol has a strong catalytic effect on the isocyanate groups, and influences greatly on curing rate, also DBTL is more effective catalysis on acrylic polyol without carboxylic acid than with carboxylic acid.