基于结构色共聚物的 UV LED 固化二向色涂料.pdf

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1、LED Curable Dichroic Coatings Based onBrush Block CopolymersJulie C.HostetterSeptember 6,20242INTRODUCTIONOutline Color Today Inspiration:Next Generation Color Science:Self-Assembly Formulation:Practical Considerations3PollutingNot DifferentiatedComplex to ProduceColoring Our Everyday Objects is a C

2、omplicated ProcessColorants Today are:CHALLENGES IN THE INDUSTRY4Taking Inspiration From Nature To Build the Next Gen.of ColorAS SEEN IN NATURE5A Traditional Color(Pigment or Dye)Made from many different raw materials and unique individualprocesses that absorb light.Different Colors Different Chemis

3、tryRedGreenBlueDifferent Colors Same ChemistryStructural Color ResinMade from the same core material and one processthat reflects light(visible,UV,infrared).InfraredRedGreenBlueProducing the Entire Light Spectrum From One Material vs.SeveralHOW IT WORKS6Self Assembly:A New Paradigm to Commercial Str

4、uctural Color CoatingsHOW IT WORKS7Linear Copolymers Highly entangled Slow self-assembly Small domain sizesBrush Block Copolymers Low entanglement Rapid self-assembly Large domain sizesEnabling Easy to Apply Structural Color Coatings:A Structure-Property RelationshipDESIGN8BBCPCompoundingTargeting A

5、pplication&Material PropertiesIndustry Additives(small+macromolecules)AssembledPhotonic CrystalPolymer BuildingBlock#1(Same molecule)Raw MaterialsPolymer BuildingBlock#2Manufacturing of Easy-To-Apply Structural Color CoatingsDESIGN9Solvent-Based Self-AssemblyASSEMBLYSolvated FormAs FormulatedWet Coa

6、tingAs AppliedSurfaceDried CoatingAs CuredSurfacePowdered FormAs Received10Major limitations to evaporative/solvent-based annealingsystem:-Time-Evaporation/Equipment-EH&S considerationsApproach-Replace solvents with industry accepted UV monomers-Reduce time to generate vibrant co