EPDM rabha (ethylene propylene diene monomer rubber) imhando yerabha yekugadzira iyo inoshandiswa mune dzakawanda maapplication.Dienes inoshandiswa mukugadzirwa kweEPDM rubbers ethylidene norbornene (ENB), dicyclopentadiene (DCPD), uye vinyl norbornene (VNB).4-8% yeaya monomers anowanzo shandiswa.EPDM iM-Kirasi rabha pasi peASTM standard D-1418;iyo M kirasi ine elastomers ine cheni yakazara yemhando yepolyethylene (iyo M inobva kune iyo yakanyanya kurongeka izwi polymethylene).EPDM inogadzirwa kubva ethylene, propylene, uye diene comonomer inogonesa kuyambuka kuburikidza nesarufa vulcanization.Imwe hama yekutanga yeEPDM iEPR, ethylene propylene rubber (inobatsira kune yakakwirira-voltage tambo dzemagetsi), iyo isingabvi kune chero diene precursors uye inogona chete kuyambuka uchishandisa nzira dzakasimba dzakadai seperoxides.
Sezvinoita marabha mazhinji, EPDM inogara ichishandiswa yakasanganiswa nemafirita senge kabhoni dema uye calcium carbonate, ine mapurasitiki akadai semafuta eparafini, uye ine anobatsira rubbery zvivakwa chete kana yachinjika.Crosslinking kazhinji inoitika kuburikidza nevulcanisation nesarufa, asi zvakare inopedzwa neperoxides (kuti irambe iri nani kupisa) kana ne phenolic resins.Mwaranzi ine simba repamusoro-soro sekubva pamatanda erekitironi dzimwe nguva inoshandiswa kugadzira furo newaya netambo.
Nguva yekutumira: May-15-2023