ABSsurfacepretreatmentisnecessarytopretreattheplasticsurfacebeforepainting,inordertoimprovetheadhesionofthecoatingonthesurfaceoftheplasticandimprovetheappearanceoftheplastic.(1)whenannealedplasticABSisformed,itiseasytoforminternalstressandeasytocrackatthestressconcentrationaftercoating.Annealingorsurfacetreatmentcanbeusedtoeliminatestress.AnnealingtreatmentistoheattheABSplasticmoldingpartsbelowthethermaldeformationtemperature,thatis,60degreescentigrade,andheatpreservation2H.Inordertoreduceinvestmentinequipment,thewholesurfacetreatmentcanbeusedtoimprovethesurfacecondition.TheformulationandprocessofthewholesurfacetreatmentarelistedinTable1.Table1wholesurfacetreatmentformulaandprocessparameters/1water/3temperature/temperature/Croomtemperaturetreatmenttime/mi15-20(2)oilremovalABSplasticpartsareoftencontaminatedwithoil,handsweatanddemouldingagent,whichwillmaketheadhesionofthecoatingworse,thecoatingproducescracking,foamingandshedding.Oilremovalshouldbecarriedoutbeforecoating.ABSplasticpartsareusuallycleanedwithgasolineoralcoholandthenchemicaldegreasing.TheprocessformulaislistedinTable2.Table2theresidualalkalinesolutiononthesurfaceoftheworkpieceshouldbethoroughlycleanedaftertheprocessparametersofsodiumhydroxide(S/L)sodium50~70phosphate(S/L)20~30sodiumcarbonate(S/L)10~20surfaceactiveagent(S/L)5~10temperature/50~60treatmenttime/min10to15chemicaloil,andcleanedwithpurewater***,dryingordrying.(3)electricalanddustremovalplasticproductsareinsulators,andthesurfaceresistanceisgenerallyaround1013ohms,whichiseasytogeneratestaticelectricity.Aftercharged,itiseasytoadsorbtinydustintheairandsticktothesurface.Itisverydifficulttoremovedustfromelectrostaticadsorptionbygeneralblowingmethod.Highpressureionizedairflowhasgoodeffectinadditiontoelectrostaticprecipitator.PPH551、PHP300PC4310-6HIPS美国陶氏470TPUˉ106TPU德国巴斯夫S80A11000CNPC/ABS5200HFWHPA66/PA507PC/ABS德国科思创（拜耳）F***00TVPA12/L1700PA66/A3HG5AS(SAN)锦湖350PA6ˉBG-35PP/BB1161GPCHPF1PBT1600FCTPEˉ215BˉTPE/DGR6250PPˉ30ARWPA/MXD61022-0006PA66美国泰科纳7523-2AMPP/TB53LPCG-3420PA66美国杜邦101（粉）PA123024NUXPPˉ4220PC/ABSHAC-8244POMH2320006UPA6ˉBG-50SPPSNT-7790BKPC223R-111LDPE新加坡聚烯烃F410-7PPˉ6D65LPC/ABSMC5511PBTB4300G6BKPP/56M10PPOGTX8410W-1710PPA/4083/APCDL-4020-LEXEVA1010VN3TPV荷兰D3190NPP/MX89510TPETP0CCNPC201R-111TPU德国亨斯迈60DEThecommonmethodsofchemicalmodificationare:oneisoneelementofthemodifiedresinmonomer,themodifiedmonomerisanother,graftcopolymerizationinthereactionkettleandanewcopolymer.Thesecondmethodistomodifythemodifiedresinasthemainrawmaterialbyincreasingthepolarelementintheresinmolecule.聚丙烯广泛用于塑料管材的生产，但PP是一种抗老化性能差的材料，为了PP的性能，通过化学改性发明了PP-B和PP-R树脂。Polypropyleneiswidelyusedintheproductionofplasticpipes,butPPisakindofpooranti-agingmaterial.InordertoimprovetheperformanceofPP,PP-BandPP-Rresinhebeeninventedbychemicalmodification.PP-B树脂是丙烯和的嵌段共聚物。合成丙烯-嵌段共聚物要用两个聚合反应釜PP-Bresinisablockcopolymerofpropyleneandethylene.TwopolymerizationreactorsforthesynthesisofpropyleneethyleneblockcopolymersPA66对许多溶剂具有抗溶性，但对酸和其它一些氯化剂的抵抗力较弱。PA66isresistanttomanysolvents,butislessresistanttoacidsandotherchlorinatedagents.工艺条件processconditi***干燥处理：如果加工前材料是密封的，那么就没有必要干燥。然而，如果储存容器被打开，那么建议在85℃的热空气中干燥处理。如果湿度大于0.2%，还需要进行105℃，12小时的真空干燥。熔化温度：260~290℃。对玻璃添加剂的产品为275~280℃。熔化温度应避免高于300℃。模具温度：建议80℃。模具温度将影响结晶度，而结晶度将影响产品的物理特性。对于薄壁塑件，如果使用低于40℃的模具温度，则塑件的结晶度将随着时间而变化，为了保持塑件的几何性，需要进行退火处理。***压力：通常在750~1250bar，取决于材料和产品设计。Drying:ifthematerialissealedbeforeprocessing,thereisnoneedtodry.However,ifthestoragecontainerisopened,itisrecommendedtodryat85Chotair.Ifthehumidityisgreaterthan0.2%,thevacuumdryingat105Cand12hoursisrequired.Meltingtemperature:260~290C.Theproductofglassadditiveis275~280C.Themeltingtemperatureshouldbeoidedabove300degreesC.Moldtemperature:recommended80degreesC.Themoldtemperaturewillaffectthecrystallinity,andthecrystallinitywillaffectthephysicalcharacteristicsoftheproduct.Forthin-walledplasticparts,ifthemoldtemperaturebelow40degreesisused,thecrystallinityoftheplasticpartswillchangewithtime.Inordertomaintainthegeometricstabilityoftheplasticparts,theannealingprocessisneeded.Injectionpressure:usuallyin750~1250bar,dependingonmaterialandproductdesign.***速度：高速（对于增强型材料应稍低一些）。高性能PC‖/ABSA2200合金材料具有高抗冲击、优良的耐候性和亚光效果，可应用于车载音响和DVD、汽车仪表板等部件。电镀级PC‖/ABSA2200MP具有杰出的电镀效果和良好的耐低温性能，可应用于汽车把手等电镀部件。Injectionspeed:highspeed(forenhancedmaterialshouldbeslightlylower).HighperformancePC/ABSA2200alloymaterialhashighimpactresistance,excellentweatherabilityandsublighteffect.Itcanbeusedinvehicleaudio,DVDsystem,vehicledashboardandothercomponents.ElectroplatedgradePC/ABSA2200MPhasexcellentelectroplatingeffectandgoodlowtemperatureresistance.Itcanbeappliedtoelectroplatingpartssuchascarhandles.注意事项：/PC‖塑料成型问题Note:/PCplasticsmoldingprocessproblem??产生原因及解决办法CausesandSoluti***??1、银丝1,silversilk??a、原材料受潮————干燥原料A,rawmaterialsaredampened-dryrawmaterials??b、树脂过热分解————减低成型温度B,superheateddecompositionofresin--reducingmoldingtemperature??c、螺杆压缩比小，背压不足————背压C,screwcompressionratiois***all,backpressureisinsufficient--increasebackpressure.??d、模温过低————加热模具D,lowmoldtemperature--heating??e、排气不良————模具分型面开排气槽Eandpoorexhaust--theexhaustmanifoldofthemoldpartingsurfacePPH551、PHP300PP沙特石化H25FBAPA66CM3016-G25PA6B3EG5PCGP1006FMPEI基础创新塑料ATX100TPU1175A10WPPS/XK-2307EVANX636PP40MD447ABSG-365EVA/EF443PA66南亚6410G3ABK2COCˉ6015S-04PP108MF10PA66RA004PA12L25HFWAPBT3315GKPA/MXD61002HPC/ABS/VB-1202RHDPE中石化福炼DGDB2480PA6ˉPX11311PA6T/A350PBTˉ1494X02PA6GP2300BPPˉK65G2PC/K-30CF10PPˉH680FPP2252E4EVAML21PA6K224-G6-FCPA6/BKV40H3.0PA66KN331FPBT北化院301-FJPA11PDX-H-00059PCGS2010MDRGYLCP/6130LX/TPVˉ101-55W255PCTAMN630PPEA1000PP/EG340AEPBT5615-200C/104CPC/PZ509PC/502-3KJ)