Ethylene Propenge Roj Hmab (EPR) tau siv dav hauv tsis {} Cov khoom siv roj hmab, siv roj rauv, cov xaim hluav taws xob, cov xov hlau, kev hloov kho yas, lubricification, lubricating Kev hloov pauv roj, thiab lwm yam. Epr muaj tsib lub zog tseem ceeb:
1. Zoo heev Ozone Kuj
EPR muaj qhov zoo tshaj plaws ozone tsis kam ntawm General - lub hom phiaj xaws, nyob deb tshaj plaws rau IIR thiab Criaj. Ethylene monomer roj hmab (EPM) zoo dua li urylene propylene diene monomer roj hmab (EPDM). Nyob rau hauv EPDM, vim muaj kev sib txawv sib txawv ntawm cov pawg tsis tau muaj kev sib txawv hauv qhov kev txiav txim: dcone {{{{{{{- aydm.
2. Zoo tshaj qhov kub thiab huab cua laus tiv taus
EPR cov khoom ua pov thawj zoo tshaj plaws cua sov thiab huab cua laus tiv thaiv ntawm General - lub hom phiaj ntxeem. Nyob rau hauv ib puag ncig nitrogen, qhov pib ceeb thawj poob kub yog 319 teev rau Styrene {}} butadiene roj hmab, thiab 485℃rau ePR. Ethylene roj hmab tuaj yeem siv ntev ntev- sij hawm ntawm 130℃thiab luv- lub sij hawm ntawm 150℃lossis siab dua. Thaum tshav kub kub tiv thaiv nrog lub kaw lus vulcanization, nrog peroxide tshuab zoo tshaj rau cov sulphur tshuab. Epm muaj cov kub kub zoo dua li EPDM, thiab ntawm cov epdms, tus h hom yog zoo dua rau E thiab D hom. Ethylene cov roj hmab siv raws li ru tsev dej waterproof wharbranes tuaj yeem muaj kev pabcuam lub neej ntawm ntau tshaj 25 xyoos.
3. Zoo polar nruab nrab tsis kam
EPR tiv me me rau polar media, qhia tsis muaj tshuaj tiv thaiv nrog cov tshuaj thiab tsawg tsawg nrog cov tshuaj pua sab nrauv. Yog li ntawd, nws yog 不耐 (tsis tiv taus) tsis -} roj polar thiab cov kuab tshuaj tab sis tawm tsam rau cov roj polar. Piv txwv li, nws tivfig phosphate ester hydraulic roj tab sis tsis muaj roj av lossis benzene. Nws txoj kev tawm tsam dej, dej khov kho, thiab chav yog qhov zoo tshaj plaws ntawm General- ecdm> SBR> NR> CR.
4. Cov khoom zoo rwb thaiv tsev
EPR tau muaj cov khoom rwb thaiv tsev zoo, nrog lub zog tiv thaiv raws li kev txiav txim ntawm 10¹⁶ ω ω ω ω ω ω. Nws corona tsis kam yog ntau dua li butyl roj hmab: butyl roj hmab yuav tsum tsuas yog 2 teev, thaum EPR tuaj yeem tiv taus 2 lub hlis. EPR muaj qhov tawg tau voltage ntawm 30-40 MV / M thiab Dielectric tas li. Epm lub rwb thaiv tsev muaj zog yog zoo dua rau epdm, thiab nws cov hluav taws xob hloov me ntsis tom qab dej rwb thaiv tsev thiab underwater rwb thaiv tsev cov ntawv thov.
5. Hloov ua qauv
EPDM tuaj yeem siv cov neeg sab nrauv, peroxide, cob, thiab quinone oxone oxime vulcanization tshuab, thaum Epm tsuas yog muaj vulcanized nrog parsoxides. Thaum siv peroxide vulcanization tshuab, acidic fillers yuav tsum tau siv nrog kev ceev faj. Cov roj siv feem ntau rau EPR yog roj av- Nyob, suav nrog cov roj naphthenic, nrog naphthenic roj qhia zoo dua nrog ePR. EPR muaj tus kheej tsis zoo- cov khoom nplaum thiab cov nplaum ua ke xws li txheej txheem alkylas, terpene resins, thiab rosin tuaj yeem ntxiv thaum sib sau ua ke. Amine {{6- based antioxidants feem ntau siv ua anti {{}} Cov neeg sawv cev laus.
