EPDM roba nasa ne na thermoset elastomers (rubber), yayin da PTFE na cikin thermoplastics.Lura cewa kayan biyun suna da ma'ana iri ɗaya.
EPDM roba elastomer thermoset ko roba abu.Yana da ƙarancin ƙarancin ƙima da ƙarfin zafi mafi girma dangane da sauran kayan roba.
PTFE shine fluoroplastic (ma'auni na tushen fluorine).Yana iya samun daidaitaccen babban yawa tsakanin thermoplastics.Bugu da kari, zai iya samun matsakaicin matsakaicin ductility da ƙarancin ƙarfi mai ƙarancin ƙarfi.
EPDM ya fi laushi kuma yana samar da mafi kyawun abin rufewa (ya dace da mafi ƙarancin ƙarewa).polymer yana da tsauri kuma slicker, wanda zai iya riƙe mafi kyau a cikin aikace-aikacen daɗaɗɗa ko ƙura.Dukansu biyu ba za su iya kula da ruwan teku ba daga yanayin harin sinadari / lalata.
Matsakaicin zafin jiki na PTFE shine> 490 ° C (> 910 ° F) kuma manyan abubuwan bazuwar sune iskar hydrogen flouride gas (mai lalatawa) da carbon dioxide.Bai dace da amfani ba inda zai shiga hulɗa da acetone ko aikace-aikacen alkaline mai zafi.
Idan kana son sassan don hatimi yin amfani da EPDM ko roba na dabi'a, kayan PTFE ba zai rufe da kyau kwata-kwata.Yana da wuya, duk da haka ya fi ɗorewa & tabbas ya fi tsada amma yana da yuwuwar ba zai hatimi kamar yadda na'urar elastomer ba.
PS: Tuntube mu don PTFE ƙãre samfurin samfurin kyauta
Lokacin aikawa: Agusta-01-2017