Carboxyl-terminated butadiene nitrile (CTBN) polymer ipurasitiki ine simba rekudzivirira kupisa, kupisa uye makemikari. Hunhu uhwu hwakasiyana hunoita kuti CTBN ive chinhu chinoshandiswa zvakanyanya mumaindasitiri akasiyana-siyana. Muchinyorwa chino, tichaongorora kuti carboxyl-terminated butadiene nitrile chii uye mashandisirwo ayo muminda yakasiyana.
Nitrile yebutadiene inogumiswa nekabhokisaylii copolymer ye butadiene ne acrylonitrile iyo inopfuudzwa ne carboxylation panguva yekugadzira. Maitiro aya anounza mapoka e carboxyl functional mu polymer chain, zvichiwedzera elasticity yayo. Copolymer inobuda ine huremu hwakawanda hwemamorekuru, polydispersity index yakaderera, uye inonyunguduka zvakanaka mu organic solvents dzakasiyana-siyana.
Mapolymers e-butadiene nitrile anobviswa necarboxyl anozivikanwa nekusagona kwawo kupisa, mafuta, mafuta, mvura yemumvura uye mamwe makemikari akawanda. Kugona kwawo kutsungirira tembiricha dzakanyanya kubva -40°C kusvika 150°C, pamwe chete nekusagona kwawo ozone uye mamiriro ekunze, zvinoita kuti ive chinhu chakanakira kushandiswa kwakaoma.
Imwe yenzira huru dzekushandisa butadiene nitrile inogumiswa necarboxyl iri muindasitiri yendege. Inowanzoshandiswa senzira yekusimbisa ma epoxy resins anoshandiswa mukugadzira zvivakwa zvendege. CTBN inovandudza kuramba kusimba kwemuchina, kusimba kwekutyoka uye kugara kwenguva refu kwezvisanganiswa izvi. Kugadzikana kwayo pakupisa kunoita kuti ikwanise kuchengetedza hunhu hwayo hwemuchina kunyangwe pakakwirira uye panguva yekuchinja kukuru kwekupisa.
Imwe nzira yakakurumbira yekushandisa butadiene nitrile inogumiswa necarboxyl iri muindasitiri yemotokari. CTBN inowanzoshandiswa sechinhu chakakosha mukuputira, kunamira uye sealant yezvikamu zvemotokari. Inodzivirira mafuta, mafuta uye makemikari zvakanaka, pamwe chete nekuchinjika kwayo uye kugara kwenguva refu, inoita kuti ive chinhu chakanakira magasket, maO-rings, zvisimbiso uye diaphragms. Inobatsira kuona kushanda kwakakodzera uye kugara kwenguva refu kwezvikamu muinjini, magedhi uye masisitimu ehydraulic.
Indasitiri yemagetsi inobatsirwawo nehunhu hwakasiyana hwema "butadiene nitriles" anogumisirwa ne "carboxyl". Iyi elastomer inoshandiswa zvakanyanya mukugadzira zvinhu zvinodzivirira tambo uye zvinodzivirira jira. Ma "CTBN polymers" anodzivirira hunyoro, mafuta nemakemikari, pamwe nesimba guru re "dielectric" uye kugadzikana kwekupisa. Hunhu uhwu hunoita kuti ive chinhu chakanakira kuona kuchengetedzeka nekuvimbika kwemasisitimu emagetsi.
Pamusoro pemaindasitiri ataurwa pamusoro apa, butadiene nitrile inogumiswa nekabhokisiInoshandiswawo mukugadzira pendi, zvinonamira uye zvinonamira, uko kuenderana kwayo nezvimwe zvinonyungudutsa zvakasikwa kunobatsira zvikuru. Inoshandiswawo mukugadzira mishonga yerabha inoshanda zvakanyanya, zvichiita kuti irambe yakasimba uye isingachinji.
Muchidimbu, carboxybutadiene nitrile imhando ye elastomer ine simba rakawanda uye inodzivirira zvikuru michina, kupisa uye makemikari. Mashandisirwo ayo akasiyana-siyana muindasitiri yendege, mota, magetsi nedzimwe nzvimbo akaratidza kuvimbika kwayo uye kushanda kwayo. Sezvo tekinoroji ichifambira mberi uye indasitiri ichida zvinhu zvinoshanda zvakanyanya, CTBN iri kuramba ichichinja uye ichipa rubatsiro kumaindasitiri akasiyana-siyana, zvichiita kuti ive chinhu chinokosha pakushandiswa kwakasiyana-siyana.
Nguva yekutumira: Gumiguru-20-2023