EPDM vs PTFE

Labala ya EPDM ndi ya gulu la thermoset elastomers (rabala), pomwe PTFE ndi ya thermoplastics.Chonde dziwani kuti zida ziwirizi zimasiyana kwambiri.

EPDM rabara ndi thermoset elastomer kapena mphira zakuthupi.Ili ndi kachulukidwe kochepa kwambiri komanso kutentha kwambiri poyerekeza ndi zida zina za rabala.

PTFE ndi fluoroplastic (fluorine-based thermoplastic).Itha kukhala ndi kachulukidwe kwambiri pakati pa thermoplastics.Kuphatikiza apo, imatha kukhala ndi ductility yapakatikati komanso mphamvu yotsika kwambiri.

EPDM ndi yofewa ndipo imapanga chinthu chosindikizira bwino (chimagwirizana bwino ndi mapeto okhwima).ma polima ndi olimba komanso oterera, omwe amatha kukhazikika bwino pamakina osunthika kapena abrasive.Onsewa amatha kusamala za madzi a m'nyanja kuchokera pakuwukira kwamankhwala / kuwononga.

Kutentha kwa PTFE ndi> 490 ° C (> 910 ° F) ndipo zinthu zazikulu zowola ndi mpweya wa hydrogen flouride (wowononga kwambiri) ndi carbon dioxide.Sikoyenera kugwiritsidwa ntchito pomwe imakumana ndi acetone kapena zamchere zamchere.

Ngati mukufuna kuti mbalizo zisindikize ntchito EPDM kapena Natural labala, zinthu za PTFE sizidzasindikiza bwino konse.Ndizovuta, koma zolimba komanso zokwera mtengo kwambiri koma sizimasindikiza ngati elastomer.

PS: Lumikizanani nafe PTFE anamaliza mankhwala free chitsanzo