塑胶电镀工艺的介绍课件

塑膠電鍍介紹

PlatingonPlastics

塑膠電鍍介紹PlatingonPlastics塑膠電鍍原理及注意事項PrinciplesofPlatingonPlastic第一站素材選擇ABS塑料案例(Step1:SelectingMaterialABSPlasticCase)1.最好採用電鍍級ABS塑膠如圖所示其丁二烯含量15%~16%密著強度最好

SelectstheABSplasticsshowingontherightwhichthebutadieneis15%-16%.Itsadhesionisbest.2.采用70%~95%PC+ABS材料要請供應商提供防火材料%、PC%、等相關資料

Appliershouldofferfireproofmaterial,PC%,etc,andreferencesbeforeselecting

70%-95%PC+ABS.3.塑膠電鍍原料應完全乾燥(含水率0.1%以下)

Materialsofplatingonplasticshouldbedriedtotally.4.塑膠電鍍原料盡量避免染色Materialsofplatingonplasticmustpreventdyeing.5.塑膠電鍍原料UL認證MaterialsofplatingonplasticshouldbeattestedbyUL.0.51.52.02.53.03.54.04..51.0141915161718密著強度Kgf/cm丁二烯ｗt%各材質丁二烯之含量塑膠電鍍介紹PlatingonPlastics塑膠電鍍原理及注意事項第二站模具設計Step2:MouldDesign1.塑膠電鍍模具必須預留電鍍夾具掛架點(以防產品變形及生產便利性)Remainspointsforelectroplatingrackinmouldofplatingonplastic.2.模具設計趨向：耐高溫不易頂開產生毛邊、射出點不可太細以防入水斷裂脫落、預防尖端放電(加框)、注意離模斜度、預留排氣孔、注意頂針粗細影響外觀及進膠口位置產生之結合線等Trendofmouldsdesign:Mouldsshouldofberesistanttohightemperatureandnoteasilyopentocreatecrudeoutline,theejectionpointshouldnotbetoosmalltoprevententeringwaterandbreaking.Preventsdischargeoftip.Remindstheventilator.Paysattentiontothatthicknessoftipwillinfluencetheexteriorandthecombinationlinecreatedintheejectionhole.塑膠電鍍介紹PlatingonPlastics塑膠電鍍原理及注意事項第三站成型射出FormationandEjection5.尺寸確認：依廠商訂定長寬尺寸、範圍Affirmingthesize:decidesthesizeandrangeoflenthandwidthaccordingtotherequirementofthefirm.2.射出參數在不頂模、不起毛邊狀況下，盡可能拉高樹脂溶解溫度及模溫溫度，降低射出壓力及射出速度，以減少應力產生TheejectionparametersuchasplasticTmandmouldtempretureshouldriseashighaspossidbleandtheejectionstressandspeedshouldbereducedtolessenthestress.3.成形表面確認：不可有感結合線、刮痕、頂凸、拉模、縮水、起蒼、包風、及異色點(浮出表面上)等等Affirmingthesurface:Theremustbenocombinationline,scratch,etc.4.成型品包裝：用Tray(托盤)+紙箱，以防碰刮傷Packing:adopttrayandpapercasetopreventbeingscratched.1.脫模劑最好能不用，要用務必使用含氟水性脫模劑Avoidusingthemouldreleases,ifitisessentialtouseone,theFluorine-typemaybeusedspringly.塑膠電鍍介紹PlatingonPlastics塑膠電鍍原理及注意事項模溫與密著力關系relationbetweentempretureofmouldandadhesion樹脂溶溫度與密著力關系relationbetweenplasticmeltingtemperatureandadhesion射速與密著強度關系relationbetweenspeedofejectionandadhesion密著力(kgf/cm)Adhesion密著力(kgf/cm)Adhesion密著力(kgf/cm)Adhesion模溫(°C)tempretureofmould溶融溫度(°C)tempretureofplasticmelting射出速度(mm/sec)speedofejection0134201342013425060708021022023024025020000010305070塑膠電鍍介紹PlatingonPlastics第四站防鍍方式MethodsofPlating-proof塑膠電鍍原理及注意事項1.與機構R&D、RF、EMI、ESD、電子等人員討論絕緣區位置、熱溶點位置、卡勾防鍍、耳機孔迴朔、EMI歐姆值Discussespositionofinsulationareaandmeltingpoint,plating-proofofhooksinrack,EMIohm.2.防鍍方式：噴塗、貼膠、蝕刻、照影、印刷(依需求而決定)MethodofPlating-proof:sprayingpaint,etching,printing,etc.(decidedby

requirements)塑膠電鍍介紹PlatingonPlastics

HardnessResistancetosolventANTI-UVFinenessofsurface

Vergecoverage

operationEvennessofmembrane

R.C.A

price

Techniquenorm

Adhesionofdust

DroppingofliquidElectricpowerfunctionEMIESD

quality

ofbatchproduction

SenseaboutmentalElectricalApplianceplating

>9HgoodgoodgoodgoodcomplexgoodPasssuccessfullyaverageHIGHNOYESgoodaveragegoodSprayingpaintinvacuum+UVpaint

3HgoodgoodaveragegoodaverageaveragepaverageaverageYYSecondaryprocessisnecessarygoodaverageColorplating5HgoodgoodgoodgoodcomplexgoodPasssuccessfullyexpensiveHIGHNNOgoodgoodgoodI.M.D4HgoodpassgoodgoodaverageaveragepassaverageaverageYYSecondaryprocessisnecessarygoodaveragePUpaint

2HNGpassaveragegoodaverageaverageNGaverageaverageYYSecondaryprocessisnecessarygoodaverageUVpaint3HgoodpassaverageaverageaverageaveragepassaverageaverageYYSecondaryprocessisnecessary

goodaveragePVDTiNZrN>9H

goodpassgoodgoodcomplex優良Passsuccessfully

extremelyexpensivehighNONgood優良Printinwater

2HNGNGaverageaverageaverageaverageNGaveragehighYNsecondaryprocessisnecessary

goodaverageItem

ChartofTreatmentsonPlasticSurfacegoodgood

averageMethod塑膠電鍍介紹PlatingonPlasticsPrinciplePossibilities原理Pop_met0IonicCatalystLonic催化劑ColloidalCatalyst膠狀催化劑ConductiveSurface傳送面FinalLayers最終層Electroplating電鍍Electroless

MetallDeposition無電鍍金屬沉澱SwellandEtch粗化ChromosulfuricAcidEtch鉻酸＋硫酸粗化ComparisonofFoxconn‘sProcesses制程對比Compa201.pptCleaner(Option)清潔劑（任選）CrO3-Etch粗化Reducer還原劑PrePlateNicke預鍍鎳Electroplating電鍍Accelerator加速劑Coll.Pd–Catalyst離子催化劑PreDip預浸E‘lessNickel化學鎳Cleaner(Option)清潔劑（任選）CrO3-Etch粗化Reducer還原劑Electroplating電鍍CuLink銅槽Coll.Pd–Catalyst離子催化劑PreDip預浸Cleaner(Option)清潔劑（任選）Swell+Etch粗化Conditioner調解劑PrePlateNickel預鍍鎳Electroplating電鍍Reducer還原劑Ion.Pd–Catalyst離子催化劑E‘lessNickel化學鎳Cleaner(Option)清潔劑（任選）CrO3-Etch粗化Reducer還原劑PrePlateNickel預鍍鎳Electroplating電鍍Accelerator加速劑Coll.Ag–Catalyst離子催化劑E‘lessnickel化學鎳Cleaner(Option)清潔劑（任選）CrO3-Etch粗化PrePlateNicke預鍍鎳lElectroplating電鍍Reducer還原劑Ion.Pd–Catalyst離子催化劑E‘lessNickel化學鎳Noviganth341NoviganthAKFuturonNoviganthPA[Mellon]塑膠電鍍介紹PlatingonPlasticsTheoryofAdhesion:MechanicalInterconnection黏合原理﹕自動連接Abs_aet30Toseparatethemetalfromthe

plastic,energymustbeapplied

tocompensatethecohesive

forcesintheplasticmatrix

(green)orinthemetal

(red).為將金屬從塑膠中分離出來﹐必須要求有能夠同塑膠母体（綠色）和金屬（紅色）的能量相抵之能量﹒塑膠電鍍介紹PlatingonPlasticsTypical„Polycarbonate“Blends典型“多碳酸鹽”混合blends10BayblendT45BayblendFR1441Polycarbonate聚碳酸鹽Polyacrylonitrile聚丙烯腈Polystyrene聚苯乙烯Polybutadiene聚丁二烯Filler,Pigments,...填充料顏料nArCNSANPB塑膠電鍍介紹PlatingonPlasticsSomePlateableGradePlastics可電鍍塑膠galvsub0Typ類型Name名稱Supplier供應商ABSABS+PCPPOPPPALCPTPONovodurP2MC,PM3C

Cycolac

LustranPG299

RonfalinCP55BayblendT45

CycoloyNorylPN235Codyx4019GDurethanBM240

Minlon73M40

UltramidB3M6

IXEFBayerAG

GeneralElectrics

Monsanto

DSMBayerAG

GeneralElectricsGeneralElectricsRTPBayerAG

DuPont

BASF

SolvayVectraHoechstAGRDP98119Solvay塑膠電鍍介紹PlatingonPlasticsRinsing:Concept水洗﹕步驟Dragoutv=0,2l/m2Dragoutv=0,4l/m2Evaporation

apprx80l/hReducer還原劑RinsingCascade水洗過程Etch粗化(SprayRinseshavetwicedilutionfactor)2kgCrO3=100m2etchedABS

=5500Ah=230Ain24hR=C0/Cn=[Q/V]nCn=C0*[V/Q]n塑膠電鍍介紹PlatingonPlasticsEtchingRates

ofBayblend(25cm²)andResultingAdhesionofPlatedMetalLayer.Bayblend(25cm²)粗化率及電鍍后之金屬面所產生的黏附力﹒etchrough000,20,40,60,811,21,41,60100200300400EtchingRate[mg]粗化率Adhesion[N/mm]黏附力塑膠電鍍介紹PlatingonPlasticsPalladium/TinCluster鈀/錫簇cluste10Cl-

Pd

Sn2+

0,181nm0,128nm0,093nmR.L.CohenK.W.West

J.Electrochem.Soc.120,502(1973)CoreDiameter:核心直徑3–4nmSn塑膠電鍍介紹PlatingonPlastics

ElectrolessNickelDepositionI化學鎳沉澱物IStartingReaction初期反應Adsorption

ofReducer還原劑吸附作用Protolysis質子遷移Addition

ofWater附加水Desorption解吸附作用塑膠電鍍介紹PlatingonPlastics

ElectrolessNickelDepositionII化學鎳成份IISideReactions側邊反應Recombination

ofHydrogenAtoms:

HydrogenGasEvolution氫原子再結合﹕成為