초록 |
To prepare acrylic resin coatings containing 75% of solids for top coatings of automobiles coat, we used acrylic monomer(BA,MMA,2-HPMA,Tone M-100) as raw materials.Especially, by the adoption of Tone M-100 as a functional momer, the glass transition temperature(Tg) of acrylic polymer was adjusted for 40℃. Also, the viscosity of the acrylic resins was increased with increasing OH values.Crosslinked acrylic/urethane clear coatings were obtained by curing reaction between the synthesized acrylic resins and HDI Trimer.Adhesion property to a substrate, 60° specular gloss, and pencil hardness of prepared paint showed quite good properties. |