1. Ubuningi obuphansi nokugcwaliswa okuphezulu
I-ethylene-propypene rubber iyinjoloba ene-density engezansi, enobude be-0.87. Ngaphezu kwalokho, ingagcwaliswa ngenani elikhulu lamafutha ne-EPDM.
Ukungezwa kwama-filler kunganciphisa izindleko zemikhiqizo yenjoloba futhi kwenzele inani eliphakeme le-ethylene proplene rubber enjoloba. Okwe-ethylene propylene rubber enenani eliphakeme lama-moneney, amandla omzimba nawomshini wokugcwaliswa okuphezulu awancishisiwe kakhulu.
2. Ukumelana nokuguga
I-ethylene-propylene rubber inokumelana kwesimo sezulu esihle kakhulu, ukumelana kwe-ozone, ukumelana nokushisa, ukumelana ne-alkali, ukumelana komoya, izakhiwo zikagesi, izakhiwo zikagesi, ukugcwalisa ama-fluority egumbini lokushisa lasekamelweni. Imikhiqizo enjoloba ye-ethylene ingasetshenziselwa isikhathi eside ku-120 ° C, futhi ingasetshenziswa kafushane noma ngezikhathi ezithile ku-150-200 ° C. Ukungeza ama-antioxidants afanele angakhuphula izinga lokushisa elisetshenziswayo. I-EPDM Rubber exhumene ne-peroxide ingasetshenziswa ngaphansi kwezimo ezinzima. I-Epdm Rubber ingafinyelela ngaphezu kwe-150h ngaphandle kokuqhekeka ngaphansi kwezimo ze-Ozone Ukuhlushwa 50pphphm no-30% welula.
3. Ukumelana nokugqwala
Ngoba i-ethylene propelene rubber ayinazo ama-polarity kanye nezinga eliphansi lokungabonakali, inokumelana kahle namakhemikhali ahlukahlukene we-polar anjenge-alcohols, ama-acid, ama-alkalis, owokuzila, ama-detergents, ama-gressies. Kepha kuqina kabi emanambini nangamafutha amaningi (njengophethiloli, e-benzene, njll.) Kanye namafutha anamaminerali. Ukusebenza kuzokwehla naphansi kwesenzo sesikhathi eside se-acid ehlanganisiwe. Ku-ISO / kuya ku-7620, cishe izinhlobo ezingama-400 zamakhemikhali angenawo ama-gaseosous kanye namakhemikhali angenawo aqoqe imininingwane ehlukahlukene enjoloba, futhi amazinga athile athile acacisiwe ukukhombisa izinga lokusebenza kwawo, kanye nomthelela wamakhemikhali awonakalisayo kwizakhiwo zenjoloba.
Inani lokuvuvukala kwe-grade ye-grade /% yokunciphisa inzuzo ekusebenzeni kwenani lokusebenza
1 <10 <10 kancane noma cha
2 10-20 <20 incane
3 30-60 <30 medium
4> 60> 30
4. Ukumelana Namanzi Vapor
I-ethylene-propylene rubber inokumelana kahle kwamanzi okuvimbela amanzi futhi kulinganiselwa ukuthi kungcono kunokumelana nokushisa kwayo. Ngomusi wama-230 ℃ oshubile, ukubukeka kwe-EPDM kuhlale kungashintshiwe ngemuva kwe-100h. Kodwa-ke, ngaphansi kwezimo ezifanayo, irabha le-fluorine, irabha le-silicone, i-fluoroosilicone, irabha lerabha, ne-nitrile ruble, kanye nerabha yemvelo, ne-ruble yemvelo enokonakala okubalulekile ngokubukeka okufushane.
5. Ukumelana nokuphikiswa kwamanzi okuhle
I-ethylene-propylene rubber futhi inokuphikiswa okungcono emanzini anamanzi, kepha ihlobene kakhulu nezinhlelo zokwenza ama-vulcanization. I-ethylene-propypene rubber ene-dimorpholine diselfide ne-TMTD njengohlelo lokuvuselela, ngemuva kokubhapathizwa emanzini angu-125 ° C,Izinyanga eziyi-15, futhi izinga lokunwebeka levolumu lishintsha kakhulu ngo-0.3% kuphela.
6. Ukusebenza kukagesi
I-Ethylene-propylene rubber inezindawo ezinhle kakhulu zokufakwa kukagesi kanye nokumelana kwe-corona, futhi izakhiwo zalo zikagesi zingcono kune-styrene-buthane ruble, chlorosulfonene polyethylene, i-polyethylene kanye ne-polyethylene exhumene ne-polyethylene.
7. Ukuvumelana nezimo
Ngoba akukho substeants e-polar esakhiweni samangqamuzana senjoloba ye-ethylene-propylene, ama-molelive ama-molecule aphansi, kanti amaketanga ama-molecular akwazi ukuguquguquka enjoloba endalini ebanzi neye-buthadine, futhi asakwazi ukugcinwa emazingeni okushisa aphansi.
8. Adhesion
I-ethylene-propylene rubber ayinazo amaqembu asebenzayo ngenxa yesakhiwo sayo samangqamuzana futhi anamandla aphansi. Ngaphezu kwalokho, irabha kulula ukuqhakaza, futhi ukuzimela kwalo nokuzinamathela kwalo kanye nokunamathelisa kumpofu kakhulu.
Isikhathi sePosi: Nov-17-2021
