라텍스 입자구조가 필름형성 및 필름물성에 미치는 영향 (III);모델 복합라텍스 입자의 필름물성

Effect of Latex Particle Morphology on the Film Formation and Film Properties of Acrylic Coatings (III);Film Properties of Model Composite Latex

Film properties of monodispersed model composite latexes with particle size of 190 nm, which consist of n-butyl acrylate as a soft phase monomer and methyl methacrylate as a hard phase monomer with different morphology was examined. Five different types of model latexes were used in this study such as random copolymer particle, soft-core/hard-shell particle, hard-core/soft-shell particle, gradient type particle, and mixed type particle. Tensile strength and tensile elongation at break of final films were evaluated. Those properties can be interpreted in terms of PBA/PMMA phase ratio and their morphology. The interfacial adhesion strength was also evaluated using 180^{circ} peel strength measurement and cross hatch cutting test.