Carboxyl-terinated butadiene nitrile (CTBN) polymer ke elastomer e nang le khanyetso e ntle haholo ea mochini, mocheso le lik'hemik'hale. Lintho tsena tse ikhethang li etsa hore CTBN e be thepa e sebelisoang haholo liindastering tse sa tšoaneng. Sehloohong sena, re tla hlahloba hore na carboxyl-terinated butadiene nitrile ke eng le ts'ebeliso ea eona mafapheng a fapaneng.
Carboxyl e felisitsoe butadiene nitrile ke copolymer ea butadiene le acrylonitrile e kenang ts'ebetsong ea carboxylation nakong ea ts'ebetso ea tlhahiso. Ts'ebetso ena e kenyelletsa lihlopha tse sebetsang tsa carboxyl ka har'a ketane ea polymer, e ntlafatsang thepa ea eona ea elastic. Copolymer e hlahisoang e na le boima bo phahameng ba limolek'hule, index e tlase ea polydispersity, le ho qhibiliha ho hotle ho lihlapolli tse fapaneng tsa manyolo.
Carboxyl-terinated butadiene nitrile polymers li tsebahala ka ho hanyetsa mocheso, oli, libeso, maro a haeteroliki le lik'hemik'hale tse ling tse ngata. Bokhoni ba eona ba ho mamella mocheso o feteletseng ho tloha ho -40 ° C ho isa ho 150 ° C, hammoho le ozone ea eona e ntle haholo le khanyetso ea boemo ba leholimo, e etsa hore e be thepa e loketseng bakeng sa lits'ebetso tse boima.
E 'ngoe ea litšebeliso tse kholo tsa carboxyl-terinated butadiene nitrile ke indastering ea lifofane. Hangata e sebelisoa e le ntho e thatafatsang bakeng sa li-epoxy resin tse sebelisoang ha ho etsoa meaho e entsoeng ka sefofane. Keketso eaCTBN e ntlafatsa ho hanyetsa tšusumetso, ho tiea ha fracture le ho tšoarella ka kakaretso ha lihlopha tsena. Ho tsitsa ha eona ha mocheso ho e lumella ho boloka thepa ea eona ea mechine esita le libakeng tse phahameng le nakong ea liphetoho tse potlakileng tsa mocheso.
Tšebeliso e 'ngoe e hlahelletseng ea carboxyl-terinated butadiene nitrile ke indastering ea likoloi. CTBN e atisa ho sebelisoa e le motsoako oa bohlokoa oa ho roala, li-adhesive le li-sealants bakeng sa likarolo tsa likoloi. Oli ea eona e babatsehang, mafura le lik'hemik'hale tse hanyetsanang le lik'hemik'hale, li kopantsoe le ho feto-fetoha ha maemo le ho tšoarella ha eona, li etsa hore e be thepa e loketseng bakeng sa li-gaskets, O-rings, litiiso le diaphragms. E thusa ho netefatsa ts'ebetso e nepahetseng le nako e telele ea likarolo tsa lienjineri, phetisetso le litsamaiso tsa hydraulic.
Indasteri ea motlakase e boetse e rua molemo mefuteng e ikhethang ea carboxyl-terinated butadiene nitriles. Elastomer ena e sebelisoa haholo ha ho etsoa li-cable insulation le lisebelisoa tsa sheathing. Li-polymers tsa CTBN li fana ka khanyetso e babatsehang ea mongobo, oli le lik'hemik'hale, hammoho le matla a phahameng a dielectric le botsitso ba mocheso. Thepa ena e etsa hore e be thepa e loketseng ho netefatsa polokeho le ts'epahalo ea litsamaiso tsa motlakase.
Ho phaella ho liindasteri tse boletsoeng ka holimo,carboxyl e felisitsoe butadiene nitrile e boetse e sebelisoa ho hlahisa lipente, li-adhesives le sealants, moo ho lumellana ha eona le mefuta e sa tšoaneng ea lihlahisoa tsa tlhaho ho leng molemo ka ho khetheha. E boetse e sebelisoa ha ho etsoa lik'hemik'hale tsa rabara tse sebetsang hantle, tse fanang ka ts'ebetso e eketsehileng ea ho hanyetsa le elasticity.
Ka kakaretso, nitrile ea carboxybutadiene ke elastomer e sebetsang ka bongata e nang le khanyetso e ntle ea mochini, mocheso le lik'hemik'hale. Mefuta e mengata ea ts'ebeliso ea eona sebakeng sa lifofane, likoloi, motlakase le liindasteri tse ling li pakile ho tšepahala le katleho ea eona. Ha tsoelo-pele ea theknoloji le indasteri e hloka lisebelisoa tse phahameng tsa ts'ebetso, CTBN e ntse e tsoela pele ho fetoha le ho kenya letsoho liindastering tse fapaneng, e etsa hore e be thepa ea bohlokoa bakeng sa lits'ebetso tse ngata.
Nako ea poso: Oct-20-2023