用于可持续粉末涂料应用的混合矿物消光助剂.pdf

1、Transforming the performance of powder coatings1Yanjia Zuo,Senior ScientistSustainable Construction GroupScience and Technology Center at Johns Creek GAPerformance Minerals AmericasHybrid Mineral Based Matting Aid forSustainable Powder Coatings ApplicationsTransforming the performance of powder coat

2、ings2Why a new matting aid is neededFillers(CaCO3,Wollastonite)WaxesMix of polymersHybrid mineralmatting aidLorem ipsum congue tempusLorem ipsum tempuscostAppearanceLimited gloss reductionPFAS ComplexityPowder Coating Manufacturing ProcessSieving and ClassificationPigment and Additive weighting Dry

3、premixExtrusion,cooling and chippingCommercial PowderJet Milling/GrindingCompounding processPost-add processTransforming the performance of powder coatings4Imerys matting solutionsEMP MineralSurface engineeringBenchmarkImerys matting aidRAL 9005 JET BLACKMaterials typeMorphologyMedian Particle size(

4、Laser,u)Loose Bulk Density (lb/ft3)Sp.GravityBrightness(L*)Oil absorption (g/100 g)Modified amorphous alumina silicateLameller/3D structure17.05.92.394140-160Post-addTransforming the performance of powder coatings5Imerys matting solutionsCompounding ProcessStandard TGICControl Black60 Gloss:87Black

5、w/5wt%Imerys matting aid60 Gloss:56Black w/10wt%Imerys matting aid60 Gloss:38L*:3.8a*:0.1 b*:0.4G:86.4L*:9.9,a*:-0.1 b*:0.2G:36.5L*:14.5 a*:0.1 b*:-0.7G:12.7L*:2.4a*:-0.2 b*:0.1G:89.2L*:4.6a*:-0.1 b*:2.0G:65.2L*:7.1a*:-0.2 b*:-0.5G:41.2Compounding Process Polyester/Epoxy Low CureControl Black60 Glos

6、s:94Black w/5wt%Imerys matting aid60 Gloss:67Black w/10wt%Imerys matting aid60 Gloss:44L*:3.8a*:0.1 b*:0.4G:86.4Transforming the performance of powder coatings6Imerys matting solutions_Compounding processBy incorporating Imerys matting aid into the powder coating formulations via compounding process