PP H19G-01 ! PP R***1BF
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.PPH19G-01!PPR***1BFCOCˉTMPBTˉ4115-104DTPVˉ3470NPA6ˉ613EAA/30E78A66ˉN3-33FG-1626PBT1300PA6ˉGP1100APA66/SK2010CWPA66FG173TPEˉA1900PCˉDS0036IPPOM宝理TF-10PC基础创新塑料121BK2065SPA661000PCˉEAC1080R10PA6ˉT-521PA66ASGVOMTPU/ETE70DT3EVAV3610JEVA/***75PPˉ65F4-4PA66/RFZ349XCPPSC-719SGABS锦湖HFA450PP/HF700SAPPEX532ZPCˉAZ1900PMMAG800PP/HP461XTPUA1154DNPCˉGF8002PBTSHF4910PPFS3011EPP/HA104EPA66RB00A6PA1330PA612瑞士EMSD1523ATPU深圳科思创(拜耳)UD-85A10PA6KN126BLPP6535NPC1303AH-15PP/HJ730Thecommonmethodsofchemicalmodificationare: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--theexhaustmanifoldofthemoldpartingsurfacePPH19G-01!PPR***1BFPPJ5608PCDC004EPA6V325ZH2.0PP3662PC/ABSS4230PP8088PPSF181PX1-X3PA66德国朗盛AKV15H2.0PC/PBTHI1002FLLDPE中石油兰州DFDA-7042NPC基础创新塑料(南沙)EXTC8274-701EPDM3092MTPV/P-8380N-02PBT5010GN2-30X2PBT惠州南亚1410G3GNC6PPˉ7320APA6ˉPF0047EPOEA4085SPC/PC-1100G30ETFEEP620PP/SI1203PA6德国巴斯夫B3LPA6662PA66RVL29PPSHC1ASA/PW-978DPMA/ABS/HAM8580TPEXL7350-92LCP/E6808LHF/PPˉRD360MOTPEE1148LLTPU58214PA66/RAL22ITPUA85P4394PP/BI51W/PA46TE250F3POM美国赫斯特MR90GB-KXFPPˉ371NDˉPC/PBT553PC出光URC9010TPUˉ1185AWMPBTLW9320PPEP300RKJ)
东莞市明一塑胶原料有限公司
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