用于透气持久外墙建筑涂料的有机硅树脂

Amanda (Dershem) SchmotzerChemist, Wacker Chemical CorporationSilicone Resinsfor Breathable, Long-Lasting Exterior Architectural PaintAgenda1.Background–Mechanism forSilicone Breathability2.Study–Silicone Resin inArchitectural Coatings3.Conclusions& Next StepsMechanism: Breathability & HydrophobicityCapillary Water UptakeWater Vapor Permeability3.2Å1.5ÅWater-borne Architectural Paintwith silicone resinWater-borne Architectural PaintAgenda1.Background–Mechanism forSilicone Breathability2.Study–Silicone Resin inArchitectural Coatings3.Conclusions& Next StepsTestingTests/MethodologyWater Vapor Permeability(ASTM D1653)Water Absorbance(Accelerated Weathering)Contact Angle(water)ObjectiveInvestigatesilicone resinperformance againstacrylic latex bindersandsilicone additivesCharacteristics of Acrylics/SiliconeLabelTypeIntended useSolidsMFFTAcrylic Aacrylicinterior/exterior5015Acrylic Bacrylic esterexterior5014Acrylic Cacrylicpremium grade5010Acrylic Dstyrene acrylicmasonry5020S1siliconeexterio