نویسندگان
1 گروه شیمی آلی، دانشگاه پیام نور تهران
2 گروه رزین و افزودنی‌ها، پژوهشکده پوشش‌های سطح و فناوری‌های نوین، موسسه پژوهشی علوم و فناوری رنگ و پوشش
3 گروه پژوهشی رزین و افزودنی ها، موسسه پژوهشی علوم و فناوری رنگ و پوشش
چکیده
کلیدواژه‌ها
عنوان مقاله [English]
نویسندگان [English]
In this study, radiation curable carboxylated urethane acrylate as an anionic polymeric dispersant with dimethylol propionic acid (DMPA), isophorone diisocyanate (IPDI), hydroxyethyl methacrylate (HEMA) in presence of dibutyltin dilaurate (DBTDL) as catalyst and acetone were synthesized. Then the carboxylic groups in dispersants were neutralized with triethylamine (TEA). Molecular structure of anionic polyurethane acrylate dispersants (AUAD) were characterized by fourier transforms infrared spectroscopy (FT-IR). Moreover, the dispersants were used for dispersing of TiO2 and SiO2 and the quality and quantity of particles dispersion were examined by Grindometer. Results show that in presence of carboxylate groups in backbone of polymer significantly reduce the time of dispersing. Also dispersion stability of the particles in the suspension was increased. Also the relationship between the increasing of polyurethane molecular weight and its work as a dispersant was discussed.
کلیدواژه‌ها [English]
)