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RESEARCH PRODUCT
Artificial Opals as Effect Pigments in Clear-Coatings
Marc EgenLydia BraunRudolf ZentelKlaus TännertMartin WulfPeter FreseOliver Reissubject
chemistry.chemical_classificationMaterials sciencePolymers and PlasticsGeneral Chemical EngineeringOrganic ChemistryDispersityfood and beveragesEmulsion polymerizationNanoparticlePolymerColloidal crystallaw.inventionCrystalchemistryChemical engineeringlawPolymer chemistryMaterials ChemistryThermal stabilityCrystallizationdescription
In this paper, we describe the use of artificial opals from polymer beads as effect pigments in transparent industial and automotive coatings. For this purpose, we synthesized monodisperse colloids from fluorinated methacrylates by surfactant-free emulsion polymerization. The fluorinated monomers, in combination with crosslinking, lead to a refractive index contrast, thermal stability, and solvent resistivity necessary for use as effect pigments. After crystallization of the monodisperse polymer beads, crystal flakes with iridescent colors can be obtained. The crystal flakes can act as effect pigments in various transpartent industrial and automotive coatings. due to photonic crystal behavior or effect pigments, color flop up to 100 nm are observed.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2004-02-01 | Macromolecular Materials and Engineering |