CHANGCHUNPLASTICSCO.,LTD.NO.301,SONGKIANGROAD,7THFL.,TAIPEI,10477TAIWANTEL:886-2-2503-8131(REF)FAX:886-2-2501-8018EngineeringPlasticsPolybutyleneTerephthalateTechnicalData***PBT4830-NCBPBTglassfiber30%reinforcedinjectionmouldinggrade.Characteristics1)excellentelectricalproperty2)excellenttemperatureresistance,highheatdistortiontemperature.3)excellentmechanicandchemicalproperty4)excellentweatherability5)excellentwearproperty6)excellentmoldability7)Highresistancetofuels,oil,fatsandmanysolventsInjectionMouldingConditionCylindertemperatures:240-270℃Nozzletemperature:260-270℃Mouldtemperature:40-120℃,suitabletemperature60-80℃Injectionrate:middle-fastScrewspeed:60-120rpm,tobechoseninsuchawaythatplasticizingtimeisjustwithincoolingtime.PressureInjectionpressure:500-1200㎏/㎝2Holdingpressure:300-800㎏/㎝2Backpressure:0-3㎏/㎝2MouldshrinkageMouldshrinkage1.6㎜thicknesshorizonis0.2-0.5%andverticalis0.8-1.4%underthetestmethodASTMD955.Packaging25㎏/paperbag.MaterialhandingMoisturepick-upfromambientairshouldbe***oided.Keephopperproperlyclosed.PBT4830-NCBP.1/2CHANGCHUNPLASTICSCO.,LTD.NO.301,SONGKIANGROAD,7THFL.,TAIPEI,10477TAIWANTEL:886-2-2503-8131(REF)FAX:886-2-2501-8018EngineeringPlasticsPolybutyleneTerephthalate***PBT4830-NCBPropertyValueUnitTestmethodASTMGlassFiberContent30%Specificgr***ity1.57-D792Meltingpoint225℃DSCCoef.oflinearthermalexpansion310-5㎝/㎝℃D696Heatdeflectiontemperatureunderload---18.6㎏/㎝2200℃D648---4.6㎏/㎝2218℃D648Moistureabsorption(24h)0.03％D570Flammabilityacc.toUL94,3.2㎜thicknessV-0-UL94Tensilestrength1240㎏/㎝2D638Tensileelongation3.5％D638Flexuralstrength1750㎏/㎝2D790Flexuralmodulus85000㎏/㎝2D790Izodimpactstrength-notched1/4”8.7㎏-㎝/㎝D256Hardness-rockwell121RD785Dielectricstrength,2㎜thickness22KV/㎜D149Volumeresistivity1015Ω-㎝D257Surfaceresistivity1013ΩD257Dielectricc***tant3.560HzD150Dielectricdissipationfactor0.00160HzD150Arcresistance100SECD495(1)Forreferenceonly(2)Alldatainthetablearethetypicalvaluesofthematerialandnottheminimumvaluesofthematerialspecificati***.PBT4830-NCBP.2/2)