Hydrogenated nitrile rabara (HNBR) imagwiritsidwa ntchito makamaka pamapulogalamu omwe amafunikira kutentha kwambiri komanso kutsika kwamphamvu kwamphamvu komanso kukana kukalamba bwino, pambuyo potupa mumafuta ndi madzimadzi Pambuyo pakutupa kwamafuta ndi madzi, HNBR imagwiritsidwa ntchito makamaka pamapulogalamu omwe amafunikira mphamvu zamphamvu kwambiri pakutentha komanso kutsika komanso kukana kukalamba. Zomwe zimafunikira kuti zinthu izi zitheke ndi malamba oyendera nthawi, ma hose othamanga kwambiri komanso masikono a mapepala. Zogulitsa mphira zomwe zimagwiritsidwa ntchito zimakhala zovuta kwambiri ndipo nthawi zambiri zimagwedezeka chifukwa cha kutentha ndi ma frequency osiyanasiyana. Mayesero ochiritsira omwe amagwiritsidwa ntchito powonetsa mphamvu za zinthu zomwe zimagwiritsidwa ntchito nthawi zambiri zimakhala kutentha.
Ngakhale mayesowa amatha kuwonetsa zinthu zosadzazidwa bwino, miyeso pa kutentha kozungulira sikuwonetsa zotsatira za kutentha pakuchitana kwa filler-monomer. kuyanjana kwa filler ndi filler-polymer ndi momwe amakhudzira zinthu zakuthupi pakutentha kwambiri. Kwa ma polima opangidwa makamaka kuti agwiritse ntchito kutentha kwakukulu, kumvetsetsa momwe kutentha kumakhudzira luso la zinthuzo ndikofunikira kuti pakhale kukhathamiritsa koyenera.
Mu pepalali, zotsatira za kutentha pa luso katundu wodzazidwa rubbers amafufuzidwa, molunjika pa mtundu wa filler, mlingo wake, ndi kugwirizana kwa filler ndi HNBR ndi hydrogenated carboxylated nitrile butadiene rabala (HXNBR) ma polima.
Pachifukwa ichi, pepala ili likufanizira kulimbikitsa (N330) ndi osalimbikitsa (N990) carbon blacks ndi silika (VulcasilN). Pamwamba pa silika amatha kusinthidwa mosasamala (filler surface hydrophobic) komanso mwachangu (filler surface hydrophobic ndikumangirira ku polima). Kuchulukirachulukira kwa mankhwala kumagwiritsanso ntchito zodzaza monomeric, monga zinc diacrylate (ZAD), zomwe zimatha kupangidwa ndi polymerized in situ panthawi yavulcanization kuti zithandizire kukonza zinthu. 'zodzaza' zatsopanozi ndi kuyanjana kwawo ndi matrix a polima sizinaphunziridwebe potengera kutentha ndi kudalira pafupipafupi. 'Zodzaza' zatsopano ndi kuyanjana kwawo ndi matrix a polima sizinaphunziridwe molingana ndi kutentha ndi kudalira pafupipafupi.
Kutengera ndi makina komanso makina osinthika azinthu za HNBR zowombedwa komanso zosavunda, zodzaza zosiyanasiyana (carbon black, silica ndi ZDA) zidawunikidwa kuti mudzaze. ndi ZDA) zodzaza ma raba a HNBR ndi HXNBR adawunikidwa potengera kudalira kwa kutentha kwa zinthu zolimbitsa.
Kuchepa kwa ma modulus ndi kutentha kowonjezereka kwa mphira onse osawotchera (kupatula silika wodzazidwa ndi silika) ndi chotsatira cha kutentha kudalira mamasukidwe akayendedwe a polima matrix. Mtundu ndi kuchuluka kwa zodzaza mu binder zimangotsimikizira kuchuluka kwa kulimbitsa ndipo zilibe mphamvu pa kutentha kumadalira kuchepa kwa binder modulus.
Kwa zomatira zodzaza ndi silika, kulumikizana kwa tinthu ta silika kumatsimikizira zomwe zimatengera kutentha. Ngati silika pamwamba ankachitira ndi silika alkane mankhwala tikwaniritse hydrophobicity, ndi coalescence wa silika particles ndi choletsedwa. Pa ma deformation amplitudes akulu, kulimbikitsa kwamitundu yonse yakuda ndi silika yodzaza ndi silika kumatha kufotokozedwa ngati kulimbikitsa kwa hydrodynamic kokha.
Ngati ZDA imagwiritsidwa ntchito ngati chodzaza, palibe kulimbikitsanso komwe kumawonedwa mumagulu a rabala osavunda chifukwa ZDA sinapangidwe polima ndipo imagwira ntchito ngati mapulasitiki otsika kwambiri. ZDA-zokhala ndi mankhwala anali ndi ma viscosities otsika pa zovuta zonse, kusonyeza katundu wabwino wokonza.
Kuyerekeza kwa mphamvu zamakina opangira mphamvu komanso kupsinjika kwamphamvu kwa rabara yowonongeka kunasonyeza kuti mphira ya HXNBR yodzazidwa ndi ZDA inali ndi mphamvu zowonjezera zowonjezera Mphamvu komanso zowonjezereka kwambiri zamakina (kupsyinjika ndi elongation pa nthawi yopuma) kuchepa ndi kutentha kwakukulu kwa omangira onse. Kulumikizana kwamphamvu pakati pa filler pamwamba ndi matrix a polima kumawonjezera kutentha kwa zinthu zolimbitsa. Ngakhale kuyanjana kwa ionic pakati pa magulu a ZDA ndi HXNBR carboxyl kunakulitsa kupsinjika kwa fracture, kuyanjana kwa ma ionic kumeneku sikunakhudze kudalira kwa kutentha kwa kupsinjika kwa fracture. Izi zikuwonetsa kuti kuyanjana kokhazikika kwa ma ionic pakati pa ZDA ndi matrix opangidwa ndi polima (HXNBR) ndikofunikira pamakina abwino kwambiri komanso osinthika pamakina opangira mphira omwe ali ndi kutayika kotsika kwa hysteresis pansi pamikhalidwe yosinthika.
