Synthesis and characterization of multi-hollow opaque polymer pigments

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2016-08-05
Asmaoglu, Serdar
Gündüz, Güngör
MAVİŞ, BORA
Colak, Uner
A new generation multihollow opaque polymer pigment was synthesized by suspension polymerization of water-in-oil-in-water emulsion method, where methyl methacrylate and ethylene glycol dimethacrylate monomer mixture was used as oil phase. The effects of surfactant and cosurfactant composition in terms of hydrophilic/lipophilic balance on the stability of the water-in-oil emulsion and the size of water droplets were studied. Low droplet sizes and the optimum stability were obtained with Span 80&Tween 80 surfactant mixture at an HLB value of 8. The desired size distribution was obtained at monomer/surfactant/water ratio of 75.5/9.4/15.1 at an ultrasonic mixing power of 80 W lasting for 30 s. The surface morphology and hollow structure of polymer pigments were analyzed by scanning and transmission electron microscopy techniques. L*a*b color and gloss properties of polymer pigments were examined. The opacity values were assessed by contrast ratio measurements, and the pigments provided up to 97.3% opacity with 50% v/v solid content in resin. In addition, the pigments exhibited low gloss values and yielded matte films. (c) 2016 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2016, 133, 43696.
JOURNAL OF APPLIED POLYMER SCIENCE

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Citation Formats
S. Asmaoglu, G. Gündüz, B. MAVİŞ, and U. Colak, “Synthesis and characterization of multi-hollow opaque polymer pigments,” JOURNAL OF APPLIED POLYMER SCIENCE, pp. 0–0, 2016, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/56995.