ProductName:PBTMasterbatchModelNumber:GY-2805Application:usedforloosetubeofopticalfiberPBTisatypeofplastic,whichreferstoatypeofplasticcomposedofpolybutyleneterephthalateasthemainbody.Thismaterialispronetohydrolysisathightemperatures,sodryingbeforeprocessingiscrucial.Suggestdryingconditionsintheairat120℃for6-8hours,or150℃for2-4hours.Thehumiditymustbelessthan0.03%.Ifusingamoistureabsorptiondryerfordrying,therecommendedconditionis150℃for2.5hours.ChemicalandphysicalpropertiesofPBTpolybutyleneterephthalatePBTisoneofthetoughestengineeringthermoplasticmaterials.Itisasemicrystallinematerialwithexcellentchemicalstability,mechanicalstrength,electricalinsulationproperties,andthermalstability.Thesematerialshavegoodstabilityunderawiderangeofenvironmentalconditions.ExtendedInformationBeforePBTinjectionmolding,itisnecessarytodryatatemperatureof110-120℃forabout3hours.Themoldingprocessingtemperatureshouldbe250-270℃,andthemoldtemperatureshouldbecontrolledat50-75℃.Duetothefactthatoncethematerialiscooledfromamoltenstate,itwillimmediatelysolidifyandcrystallize,resultinginashortercoolingtime;Ifthetemperatureofthenozzleisnotproperlycontrolledtoolow,theflowchannelispronetocoolingandsolidification,leadingtoblockage.Ifthetemperatureofthematerialbarrelexceeds275℃orthemoltenmaterialstaysinthebarrelformorethan30minutes,itiseasytocausematerialdecompositionandembrittlement.WhenPBTinjectionmolding,largenozzleisrequiredforglueinjection,insteadofHotrunnersystem,themoldexhaustshouldbegood,andthemoldingprocessshouldbecarriedoutundertheconditionsofhighspeed,mediumpressureandmediumtemperature.ThefireproofmaterialorPBTnozzlematerialwithglassfibershouldnotberecycled.Whenthemachineisstopped,PEorPPmaterialshouldbeusedtocleanthematerialpipeintimetoavoidcarbonization.
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daima
daima
发布时间：2023-06-29 10:08:38
The company covers an area of more than 20 mu, with a modern production plant of 15,000 square meters, a variety of production, testing equipment and instruments nearly 150 sets (sets), close to the Yangtze River, Beijing-Hangzhou Grand Canal, Beijing-Shanghai, Ningtong, Yangli highway, traffic is very convenient.
Add: Jinson Road, Shaobo Industrial concentration Area, Jiangdu City, Jiangsu Province
Tel: 0514-86583655
E-mail: yzjinsen@yzjinsen.cn
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