Presentation on theme: "FEVE Emulsions in Architectural Coatings"— Presentation transcript:
0 “FEVE Fluoropolymer Emulsions for Performance Improvement in Architectural Coatings” Durability and Design WebinarBob Parker, Applications ChemistApril 27th, 2011
1 FEVE Emulsions in Architectural Coatings Outline:Overview of “FEVE” resin technologyIntroduction of water-based “FEVE” emulsionsFormulations using “FEVE” emulsionsas blending resinsQUV Exposure Testing – gloss and color retentionExamination of exposed paint films
2 FEVE Emulsions in Architectural Coatings FEVE Fluoropolymer Resins“FEVE” is abbreviation for “Fluoroethylene Vinyl Ether” resins for coatingsKnown for their high performance properties:Exceptional resistance to UV degradationSuperior Chemical ResistanceExcellent Thermal Resistance- Known for their unique formulation properties:1) Solvent soluble2) Can be cured at ambient temperature with isocyanates3) Can achieve high gloss formulations
4 FEVE Emulsions in Architectural Coatings Commercial Types of “FEVE” Resins:Solvent soluble resins –uses organic solvents for viscosity reduction;predominantly cured with isocyanates; available asresin solutions or as 100% solid resins2) Water-based emulsions –use vinyl ether macromonomers containingpolyoxyethylene (EO) units to create stable emulsions
5 FEVE Emulsions in Architectural Coatings FEVE Water-borne Emulsions************FE-4300FE-4500Solids (Wt.)50%pH7 to 9Specific Gravity1.131.17MFT35°C.28°C.Hydroxyl Value1013
6 FEVE Emulsions in Architectural Coatings White DTM I/M Paint Formulation PropertiesSolids (Volume)38%FEVE EmulsionFE-4300Acrylic Emulsion SourcesDow Chemical and LubrizolpH9.0 – 9.5TiO₂ ChoiceTiPure R-706PVC18Thickenersassociative-type60° Gloss Range60-80VOC100 g/liter
7 FEVE Emulsions in Architectural Coatings Testing procedure # 1 :1) Choose 3 different acrylic emulsions from 2 manufacturers as blending resins for White DTM I/M Formulation. Blend these acrylic emulsions with the FE emulsions and run oven stability tests.2) Manufacture of 2 White DTM I/M Paint formulations:a. Binder = 100% Acrylic Emulsionb. Binder = 50% Acrylic Emulsion % FE-4300 (FEVE Emulsion)3) Preparation of test panels ( primed Al panels coated with 4 wet mils of coating)4) QUV Weatherometer Exposure (UVA 340 Bulbs used)a. Test Cycle = 8 hours UV 60°C. + 4 hours 50°C.
46 FEVE Emulsions in Architectural Coatings Conclusion:Inclusion of FEVE emulsions in architectural coating formulations can increase gloss retention, color retention, and the overall durability of the dry film. These characteristics will prolong the aesthetic properties and the protection properties of these coatings, thereby increasing the time frame between recoats.