Cov ethylene propylene diene qhov rais roj hmab foob muaj cov pa oxygen zoo ua haujlwm, kub tsis kam, tiv thaiv kev laus thiab ultra-low kub yooj. Nws tuaj yeem siv rau kev ua haujlwm oxygen, huab cua tsis kam thiab UV tsis kam. Txawm li cas los xij, raws li nws tus kheej cov yam ntxwv, nws cov nplaim hluav taws kub retardant qib, hnav tsis kam thiab adhesion tsis muaj zog. Cov roj hmab vulcanized no muaj cov qauv ntawm cov saw hlau saturation, tuaj yeem sib xyaw, cov yam ntxwv tuaj yeem ua kom muaj zog. Hydrogenated nitrile butadiene roj hmab carbon saw yog tsim los ntawm acid ruaj khov saturated lub xeev hydrocarbon, tsuas yog muaj unsaturated ob daim ntawv cog lus nyob rau hauv lub ntsiab saw, yog li feem ntau ntawm nws belongs rau hom saturated xeev vulcanized roj hmab. Vim tias tsis muaj cov khoom hloov pauv hauv cov qauv molecular, kev sib koom ua ke ntawm cov qauv molecular yog tsawg, yog li cov qauv molecular saw tuaj yeem tswj tau qhov sib txawv ntawm qhov kub thiab txias. Cov khoom siv tshuaj lom neeg ntawm cov pos hniav ethylene-polypropylene ua rau nws cov khoom siv roj hmab vulcanized muaj cov yam ntxwv tshwj xeeb.
Ua ntej, siab ceev thiab siab filling
Hydrogenated nitrile butadiene roj hmab yog cov roj hmab vulcanized nrog qhov sib txheeb ze ntawm 0.87. Nrog ntau cov roj sau thiab cov khoom ntim, yog li nws tuaj yeem txo cov nqi ntawm cov roj hmab thiab cov khoom yas, sau cov khoom tsis xws luag ntawm tus nqi siab ntawm hydrogenated nitrile butadiene roj hmab, thiab rau cov nqi siab ntawm hydrogenated nitrile butadiene roj hmab, siab sau tom qab lub cev. thiab lub cev muaj zog ntawm kev txo qis tsis loj.
Ob, anti-aging
Ethylene cov pos hniav muaj huab cua ua haujlwm zoo, ua haujlwm oxygen tsis kam, kub tsis kam, tiv thaiv corrosion, dej vapor tsis kam, tonal kev ntseeg siab, hluav taws xob khoom, roj puv solubility thiab kev kub ntxhov. Hydrogenated nitrile butadiene roj hmab khoom siv tes ua tuaj yeem ua haujlwm ntev ntawm 120 degree, thiab daim ntawv thov luv luv lossis sib cuam tshuam ntawm 150 ~ 200 degree. Ntxiv cov tshuaj tua kab mob uas tsim nyog tuaj yeem ua rau nws daim ntawv thov kub. Hydrogenated nitrile butadiene roj hmab chemically crosslinked los ntawm peroxide tuaj yeem siv raws li cov qauv nruj dua. Hydrogenated nitrile butadiene roj hmab hauv ozone concentration 50 × 10 ~, Rashin 30 feem pua, mus txog 150 teev los yog li ntawd tsis muaj cracking.
Peb, corrosion kuj
Vim tias tsis muaj cov pos hniav optically active ethylene, tsis muaj saturation, yog li muaj ntau yam ntawm optically active tshuaj xws li cawv, acid, puag, txo tus neeg sawv cev, refrigerant, detergent, tsiaj thiab cog roj, ketone thiab rog yog zoo kuj; Txawm li cas los xij, qhov kev ntseeg tau tsis muaj zog hauv cov lipid thiab cov kuab tshuaj tsw qab (xws li cov roj av, benzene thiab cov roj ntxhia). Cov khoom kuj tseem txo qis nyob rau lub sijhawm ntev ntawm cov concentrated acid. Nyob rau hauv ISO / TR7620, ze li ntawm 400 cov ntaub ntawv uas muaj corrosive vapor thiab kua tshuaj tau sib sau ua ke rau ntau yam ntawm cov roj hmab vulcanized. Muaj ntau tshaj 80 hom tshuaj uas muaj cov nyhuv ntawm qib 1 Liu Yibing roj hmab, thiab qhov no tsis tau teev tseg.
Plaub, chav dej tsis kam
Ethylene cov pos hniav muaj cov dej vapor zoo heev thiab zoo dua li nws qhov kub thiab txias. Hauv chav superheated ntawm 230 degree, tsis muaj qhov hloov pauv tom qab ze li 100h. Thiab fluorine roj hmab, silicone, fluorine silicone, butyl roj hmab, nitrile roj hmab, roj hmab ntuj nyob rau hauv tib tus qauv, tus kheej tau ntsib ib tug luv luv lub sij hawm nyob rau hauv thiab sab nraud yam tseem ceeb deterioration.
5. Kev tiv thaiv dej kub
Cov dej tsis kam ntawm hydrogenated nitrile butadiene roj hmab kuj zoo, tab sis nws muaj feem xyuam nrog cov vulcanized roj hmab system software. Nrog dithidimorpholine thiab TMTD raws li vulcanized roj hmab system software, lub cev lub cev ntawm cov pos hniav ethylene hloov me ntsis tom qab 15 thiab 6 lub hlis nyob rau hauv 125 degree super sov dej, ntim noo noo cov ntsiab lus tsuas yog 0.3 feem pua.
6. Kev ua haujlwm hluav taws xob
Hydrogenated nitrile butadiene roj hmab muaj cov yam ntxwv zoo rwb thaiv tsev thiab corona tsis kam, hluav taws xob kev ua tau zoo dua los yog ze rau styrene butadiene roj hmab, chlorosulfonated polyethylene, siab siab polyethylene thiab high ntom polyethylene.
Xya, ductility
Cov mis mos molecular ntawm hydrogenated nitrile butadiene roj hmab tsis muaj kev hloov pauv, tsis tshua muaj kev sib koom ua ke ntawm cov qauv molecular, thiab cov qauv molecular saw tuaj yeem tswj tau zoo nyob rau hauv ntau yam, tsuas yog thib ob rau cov roj hmab ntuj thiab butadiene roj hmab, thiab tseem tuaj yeem tswj tau ntawm qhov kub thiab txias. .
Yim, adhesion
Hydrogenated nitrile butadiene roj hmab tsis zoo nyob rau hauv nws tus kheej viscosity thiab kev sib nrig sib viscosity vim tias tsis muaj cov pab pawg tshwj xeeb hauv cov mis molecular, tsis tshua muaj cohesion, thiab yooj yim rau tshuaj tsuag Frost nrog yas granules.
