1. Tsawg ceev thiab siab filling
Qhov ceev ntawm ethylene propylene roj hmab yog ib hom roj hmab qis, thiab nws qhov ceev yog 0.87.Tsis tas li ntawd, cov roj ntau ntau tuaj yeem sau thiab muab cov khoom ntim ntxiv, yog li tus nqi ntawm cov khoom siv roj hmab tuaj yeem txo qis, thiab qhov tsis zoo ntawm tus nqi siab ntawm ethylene-propylene roj hmab roj hmab nyoos tuaj yeem ua rau.Rau ethylene-propylene roj hmab nrog cov nqi siab Mooney, lub zog ntawm lub cev thiab txhua yam tuaj yeem raug txo qis tom qab siab filling.tsis loj.
2. Kev laus tsis kam
Ethylene-propylene roj hmab muaj cov huab cua zoo heev, ozone tsis kam, kub tsis kam, acid thiab alkali tsis kam, dej vapor tsis kam, xim stability, hluav taws xob khoom, roj filling thiab chav dej fluidity.Cov khoom siv roj hmab Ethylene-propylene tuaj yeem siv tau ntev ntawm 120 ° C, thiab tuaj yeem siv tau ib ntus lossis ntu ntu ntawm 150-200 ° C.Ntxiv cov tshuaj tiv thaiv kev laus tsim nyog tuaj yeem ua rau nws qhov kub thiab txias.EPDM roj hmab crosslinked nrog peroxide tuaj yeem siv rau hauv cov xwm txheej hnyav.Nyob rau hauv cov xwm txheej ntawm ozone concentration ntawm 50ppm thiab ncab ntawm 30%, EPDM roj hmab tuaj yeem ncav cuag ntau tshaj 150h yam tsis muaj kev tawg.
3. Corrosion kuj
Vim tias tsis muaj polarity thiab qis qis ntawm unsaturation ntawm ethylene-propylene roj hmab, nws muaj kev tiv thaiv zoo rau ntau yam tshuaj polar xws li cawv, acids, alkalis, oxidants, refrigerants, detergents, tsiaj thiab zaub roj, ketones thiab rog, thiab lwm yam. ;Tab sis nyob rau hauv aliphatic thiab aromatic solvents (xws li roj av, benzene, thiab lwm yam) thiab tsis zoo stability nyob rau hauv cov ntxhia roj.Qhov kev ua tau zoo kuj tseem yuav poob qis raws li kev ua haujlwm ntev ntawm cov kua qaub.
4. Dej vapor tsis kam
Ethylene-propylene roj hmab muaj cov dej vapor kuj zoo heev thiab kwv yees tias yuav zoo dua rau nws cov cua sov.Hauv chav superheated ntawm 230 ° C, tsis muaj qhov hloov pauv hauv qhov tsos tom qab ze li 100 teev.Nyob rau hauv tib lub sijhawm, fluororubber, silicone roj hmab, fluorosilicone roj hmab, butyl roj hmab, nitrile roj hmab, thiab cov roj hmab ntuj yuav pom pom kev tsis zoo tom qab lub sijhawm luv luv.
5. Resistance rau superheated dej
Ethylene-propylene roj hmab kuj muaj kev tiv thaiv zoo rau cov dej superheated, tab sis muaj feem xyuam nrog txhua lub tshuab vulcanization.Cov roj hmab ethylene-propylene nrog dimorpholine disulfide thiab TMTD raws li cov vulcanization system muaj kev hloov pauv me ntsis ntawm cov khoom siv tom qab tau soaked hauv dej superheated ntawm 125 ° C rau 15 lub hlis, thiab qhov ntim nthuav dav tsuas yog 0.3%.
6. Cov khoom siv hluav taws xob
Ethylene-propylene roj hmab muaj cov khoom siv hluav taws xob zoo heev thiab tiv thaiv corona, thiab nws cov khoom siv hluav taws xob zoo dua los yog ze rau cov roj hmab styrene-butadiene, chlorosulfonated polyethylene, polyethylene thiab cross-linked polyethylene.
7. elasticity
Txij li thaum tsis muaj polar substituents nyob rau hauv cov qauv molecular ntawm ethylene-propylene roj hmab, lub zog cohesive ntawm lub molecule yog tsawg, thiab cov saw molecular muaj peev xwm tswj tau yooj yim nyob rau hauv ib tug ntau yam, thib ob tsuas yog cov roj hmab ntuj thiab butadiene roj hmab, thiab tseem muaj peev xwm tswj tau. ntawm qhov kub thiab txias.
8. Adhesiveness
Vim tias tsis muaj cov pab pawg muaj zog hauv cov qauv molecular ntawm ethylene-propylene roj hmab, lub zog cohesive yog tsawg, thiab cov roj hmab tau yooj yim tawg, thiab nws tus kheej-adhesiveness thiab kev sib nrig sib adhesion tsis zoo heev.
Hebei CONQI VEHICLE FITTINGS Co., Ltd. yog ib lub tuam txhab mob siab rau tsim thiab faib cov roj hmab hose, EPDM hose, zaub mov qib hose thiab pvc hose thiab lwm yam nrog kev nplua nuj ntau lawm, kev tsim khoom siab heev thiab ua tiav thiab kev tswj xyuas zoo.Hauv xyoo 2009, lub tuam txhab ua tiav tag nrho cov khoom tsim tawm tus nqi ntawm 10.01 lab yuan thiab ua tiav cov se warehouse ntawm 250,000 yuan.Tag nrho cov ntawm lawv yog txuam nrog ntau tshaj 30 domestic OEMs xws li Jinlong, Yutong, Ankai, thiab Zhongtong, thiab nrog thoob ntiaj teb ceg ntawm Volvo thiab Is Nrias teb, New Zealand, Thaib, Taiwan, Poland, Ixayees, Britain, Egypt, Spain, Qaib ntxhw, Brazil, Singapore, Lub teb chaws Yelemees thiab ntau dua 20 lub teb chaws thiab cheeb tsam tau txais cov chaw txhawb nqa.Ua raws li lub ntsiab lus ntawm "kev txhim kho txuas ntxiv, kev ua tau zoo, zoo heev, thiab kev txaus siab rau cov neeg siv khoom", peb tau mob siab ntes cov cuab yeej technology thoob ntiaj teb tshiab thiab cov ntaub ntawv khoom, tas li tsim thiab tsim cov khoom tshiab, thiab muab cov neeg siv khoom.
Post lub sij hawm: Mar-17-2023