I-polymer ye-butadiene nitrile (CTBN) eqediwe yi-carboxyl iyi-elastomer enokumelana okuhle kakhulu kwemishini, ukushisa kanye namakhemikhali. Lezi zakhiwo eziyingqayizivele zenza i-CTBN ibe yinto esetshenziswa kabanzi ezimbonini ezahlukene. Kulesi sihloko, sizohlola ukuthi iyini i-butadiene nitrile eqediwe yi-carboxyl kanye nokusetshenziswa kwayo emikhakheni ehlukene.
I-butadiene nitrile eqedwe yi-carboxyliyi-copolymer ye-butadiene ne-acrylonitrile edlula enkambisweni ye-carboxylation ngesikhathi senqubo yokukhiqiza. Le nqubo ingenisa amaqembu asebenzayo e-carboxyl ku-polymer chain, ithuthukisa izakhiwo zayo zokunwebeka. I-copolymer ephumelayo inesisindo esikhulu sama-molecule, i-polydispersity index ephansi, kanye nokuncibilika okuhle ezinyibilikisini ezahlukahlukene zezinto eziphilayo.
Ama-polymer e-butadiene nitrile aqedwa yi-carboxyl aziwa ngokumelana kwawo okuhle kakhulu nokushisa, uwoyela, uphethiloli, uketshezi lwe-hydraulic kanye namanye amakhemikhali amaningi. Amandla ayo okumelana namazinga okushisa aphezulu kusukela ku--40°C kuya ku-150°C, kanye nokumelana kwayo okuhle kakhulu kwe-ozone kanye nesimo sezulu, kuyenza ibe yinto efanelekile yokusetshenziswa okudingakalayo.
Enye yezindlela ezisetshenziswa kakhulu ze-butadiene nitrile eqedwa yi-carboxyl isembonini yezindiza. Ivame ukusetshenziswa njenge-ejenti yokuqinisa ama-resin epoxy asetshenziswa ekwakhiweni kwezakhiwo ezihlanganisiwe zezindiza. I-CTBN kuthuthukisa ukumelana nokushayisana, ukuqina kokuphuka kanye nokuqina okuphelele kwalezi zinhlanganisela. Ukuqina kwayo kokushisa kuyivumela ukuthi igcine izakhiwo zayo zomshini ngisho nasezindaweni eziphakeme kakhulu kanye naphakathi nokushintsha kwezinga lokushisa okusheshayo.
Esinye isicelo esivelele se-butadiene nitrile eqedwe yi-carboxyl sisembonini yezimoto. I-CTBN ivame ukusetshenziswa njengesithako esibalulekile ekumbozeni, ekunamathiseleni nasezintini zezingxenye zezimoto. Ukumelana kwayo okuhle kakhulu ngamafutha, uphethiloli namakhemikhali, kuhlangene nokuguquguquka kwayo nokuqina kwayo, kuyenza ibe yinto efanelekile yama-gasket, ama-O-ring, izimbozo kanye nama-diaphragm. Isiza ukuqinisekisa ukusebenza kahle kanye nobude besikhathi bezingxenye ezinjinini, kuma-transmissions kanye nasezinhlelweni ze-hydraulic.
Imboni kagesi nayo izuza ezimpahleni ezihlukile zama-butadiene nitriles aqedwa yi-carboxyl. Le elastomer isetshenziswa kabanzi ekwakhiweni kwezinto zokuvikela ikhebula kanye nezinto zokubopha. Ama-polymer e-CTBN anikeza ukumelana okuhle kakhulu nomswakama, uwoyela kanye namakhemikhali, kanye namandla aphezulu e-dielectric kanye nokuqina kokushisa. Lezi zakhiwo zenza kube yinto efanelekile yokuqinisekisa ukuphepha nokuthembeka kwezinhlelo zikagesi.
Ngaphezu kwezimboni ezibalwe ngenhla, i-butadiene nitrile eqedwe yi-carboxylIphinde isetshenziswe ekukhiqizeni upende, izinamathiseli kanye nezivalo, lapho ukuhambisana kwayo nezinhlobo ezahlukene zezinyibilikisi eziphilayo kuzuzisa khona kakhulu. Iphinde isetshenziswe ekwakhiweni kwamakhemikhali enjoloba asebenza kahle kakhulu, okunikeza ukumelana okukhulu kokuthinteka kanye nokunwebeka.
Ngamafuphi, i-carboxybutadiene nitrile iyi-elastomer esebenza ngezindlela eziningi enokumelana okuhle kakhulu kwemishini, ukushisa kanye namakhemikhali. Uhlu lwayo olubanzi lwezicelo ezimbonini zezindiza, zezimoto, zikagesi kanye nezinye luye lwafakazela ukuthembeka nokusebenza kwayo. Njengoba ubuchwepheshe buthuthuka futhi imboni idinga izinto zokusebenza okuphezulu, i-CTBN iyaqhubeka nokukhula futhi inikela ezimbonini ezahlukahlukene, okwenza ibe yinto ewusizo ezisetshenziswayo eziningi.
Isikhathi sokuthunyelwe: Okthoba-20-2023