表面直接装饰技术

《表面直接装饰技术》由会员上传分享，免费在线阅读，更多相关内容在行业资料-天天文库。

1、DirectCoating/DirectSkinning:aninnovativeprocessforhigh-qualitydecorativesurfacesAugust2008DirectCoating/DirectSkinningStructure§Introduction§Processdescription§Possiblematerialsandapplications§ConclusionBusinessUnitPolycarbonatesDirectCoating/DirectSkinningMotivationHighdemandforvaluablepartsurf

2、aces§Automotiveinteriorparts§Automotiveexteriorparts§ElectroandElectronicindustry§ITindustryTailormadesolutionbyBMS§Suitablecombinationof–propersubstratematerialsSource:Polytec(Bayblend®,Makroblend®,Makrolon®)–andsurfacematerials(Bayflex®,Desmophen®,Desmodur®)§Valuablepartsurfaceappearancewith–th

3、in2C-PUR-coating(hardorsoft)–PURassolidskin–PURasfoamedskinBusinessUnitPolycarbonatesDirectCoating/DirectSkinningManyReasonsforThermoplasticCoatingCombinationofuniqueproperties–Coloreffects–Opticaleffects(e.g.3D-glosseffect)–Surfacefeel(e.g.softfeel)–Abrasionandscratchresistance–Chemicalresistanc

4、e–UV-protection–Electricalconductivity–...àNeedforacompetitivecoatingtechnologyBusinessUnitPolycarbonatesDirectCoating/DirectSkinningComparisonwithStandardCoatingStandardCoatingDirectCoating/DirectSkinningInjectionMoldingTwo-stepprocessTransport(intermediate§Injectionofthestorage)thermoplastic(In

5、jectionMolding)Cleaning(degreasing)§InjectionofthecoatingdirectlyCoatinginthemold(cleanroom)(RIM)+CuringFinishedpartFinishedpartBusinessUnitPolycarbonatesDirectCoating/DirectSkinningHighPotentialfordifferentBenefitsCosteffective§Duetoprocessintegrationnoextracoatinglinewithcleanroomnecessary§Notr

6、ansportationtoacoatinglineoradditionalmold§Noadditionalstepslikesurfacecleaningnecessary§NooversprayFlexible§Widerangeofdifferentlayerthicknessespossible–<100–1000µmassolidpaint–≥1–≈5mmandmoreassolidorfoamedskin§Replicationofstructuredmoldsurfacespossible§CombinationwithFilm-InsertMoldingpossible

7、§FastcolorchangepossibleFast§Shortcycletimesinthecaseofadual-cavityapproachwithe.g.arotarymoldBusinessUnitPolycarbonatesDirectCoating/DirectSkinningChallenges§Highrequirementsformolddesign–Highrequirementsformoldsealin