Mapulasitiki azinthu zosiyanasiyana ali ndi malo osungunuka osiyanasiyana:
Polypropylene: Kutentha kwa malo osungunuka ndi 165 ° C-170 ° C, kukhazikika kwa kutentha kumakhala bwino, kutentha kwapang'onopang'ono kumatha kufika pamwamba pa 300 ° C, ndipo kumayamba kusanduka chikasu ndikuwonongeka pa 260 ° C ngati kukhudzana ndi mpweya. , ndipo imakhala ndi anisotropy panthawi yotentha yotsika.Ndizosavuta kupotoza kapena kupindika chifukwa cha mawonekedwe a mamolekyulu, ndipo imakhala ndi magwiridwe antchito abwino.Tinthu ta utomoni timakhala ndi phula.Wapakati mayamwidwe madzi ndi zosakwana 0.02%.Chinyezi chovomerezeka pakuumba ndi 0.05%.Choncho, kuyanika nthawi zambiri sikumachitidwa poumba.Ikhoza kuumitsidwa pafupifupi 80 ° C kwa maola 1-2, ndipo zotuluka zake zimakhudzidwa ndi kutentha ndi kumeta ubweya pakuwumba.
Polyoxymethylene: Ndi pulasitiki yosamva kutentha ndi malo osungunuka a 165 ° C, omwe amawola kwambiri ndi kusanduka achikasu pa kutentha kwa 240 ° C.Kutentha kwa 210 ° C sikuyenera kupitirira mphindi 20.Pa kutentha kwabwinobwino, imatha kuwola ngati itenthedwa kwa nthawi yayitali., Pambuyo kuwola, padzakhala fungo lopweteka komanso kung'ambika.Mankhwalawa amatsagana ndi mikwingwirima yachikasu-bulauni.Kuchuluka kwa POM ndi 1.41—1.425.-5 maola.
Polycarbonate: imayamba kufewa pa 215 ° C, imayamba kuyenda pamwamba pa 225 ° C, kusungunuka kwa viscosity pansi pa 260 ° C ndipamwamba kwambiri, ndipo mankhwala amatha kukhala osakwanira.Kutentha kwake kumakhala pakati pa 270 ° C ndi 320 ° C.Ngati kutentha kupitirira 340 ° C, kuwola kudzachitika, ndi kutentha kwa kuyanika Kutentha kumakhala pakati pa 120 ℃-130 ℃, ndipo nthawi yowuma ndi yoposa maola anayi.Utomoni wa polycarbonate nthawi zambiri umakhala wopanda utoto komanso wowonekera.
Nthawi yotumiza: Oct-22-2022