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Ibhodi Elilodwa Elisekela Isibhakabhaka

I-Brominated Butyl Rubber (BIIR) Isithombe Esifakiwe

Irabha ye-Brominated Butyl (BIIR)

Incazelo emfushane:

Irabha ye-brominated butyl (BIIR) iyi-isobutylene isoprene copolymer elastomer equkethe i-bromine esebenzayo.Ngenxa yokuthi irabha ye-butyl ene-brominated inochungechunge oluyinhloko olugcwele injoloba ye-butyl, inezici ezihlukahlukene zokusebenza kwe-butyl polymer, njengamandla aphezulu omzimba, ukusebenza kahle kokudambisa ukudlidliza, ukungeneka okuphansi, ukumelana nokuguga nesimo sezulu ukumelana nokuguga.Ukusungulwa kanye nokusetshenziswa kwe-halogenated butyl rubber inner liner kuzuze isondo lesimanje le-radial ezicini eziningi.Ukusetshenziswa kwama-polymers anjalo ku-compound yangaphakathi yesondo yangaphakathi kungathuthukisa ukusebenza kwengcindezi, kuthuthukise ukunamathela phakathi kwe-liner yangaphakathi nesidumbu futhi kuthuthukise ukuqina kwesondo.


Imininingwane Yomkhiqizo

Omaka bomkhiqizo

Izici Zomkhiqizo

Irabha ye-Butyl iyi-polymer eqondile ene-isobutylene njengomzimba oyinhloko kanye nenani elincane le-isoprene.Ochungechungeni oluyinhloko lwe-molecule yerabha ye-butyl, kuwo wonke amanye amaqembu e-methylene, kunamaqembu amabili e-methyl ahlelwe ngendlela ezungeza iketango elikhulu, okubangela isithiyo esikhulu esiqinile, okwenza ukwakheka kwamangqamuzana enjoloba ye-butyl ihlangane kanye neketango lamangqamuzana liguquke libe libi kakhulu. .Kodwa-ke, yenza futhi irabha ye-butyl ibe yinhle kakhulu ekuqineni komoya, ibekwe kuqala phakathi kwawo wonke amarabha.

Ngaphezu kokuqina komoya okuhle kakhulu, ama-vulcanizate erabha ye-butyl nawo anokumelana nokushisa okuhle kakhulu.Irabha ye-butyl eyenziwe ngesulfure ingasetshenziswa emoyeni isikhathi eside ku-100 ℃ noma izinga lokushisa eliphansi kancane.Izinga lokushisa lensiza yerabha ye-butyl evuthwe nge-resin ingafinyelela ku-150-200 ℃.Ukuguga komoyampilo oshisayo werabha ye-butyl kungokohlobo lokuwohloka, futhi ukuguga kuthanda ukuthamba.Ngenxa yokungafinyeleli kahle okuphansi kweketango lamangqamuzana erabha ye-butyl kanye nokusabela kwamakhemikhali angasebenzi, irabha ye-butyl inokushisa okuhle kanye nokumelana komoyampilo nokuguga.

Imodi yokuhweba: Irabha ye-brominated butyl ingumkhiqizo wethu we-ejenti.I-oda elincane lingamathani angama-20.

Irabha ye-Brominated Butyl (BIIR) (3)
Irabha ye-Brominated Butyl (BIIR) (2)

Isicelo

1. Isicelo sethayi lemoto kanye nesondo lemoto yamandla:
Irabha ye-butyl inokumelana nokushisa okuhle kakhulu kanye nokumelana nokukhala.Amashubhu angaphakathi (okuhlanganisa izithuthuthu namabhayisikili) enziwe ngerabha ye-butyl asengakwazi ukulondoloza amandla aqinile nokudabula ngemva kokuchayeka isikhathi eside endaweni eshisayo, enciphisa ingozi yokuqhuma ngesikhathi sokusetshenziswa.Ishubhu yangaphakathi yerabha ye-butyl isengaqinisekisa impilo ephezulu yesondo nokuphepha ngaphansi kwezimo zokushisa eziphakeme noma ngaphansi kwezimo ezivuthwe umoya.Izinyembezi ezincane zinganciphisa usayizi wembobo futhi zenze ukulungiswa kweshubhu yangaphakathi yerabha ye-butyl kube lula futhi kube lula.Ukumelana ne-oxidation okuhle kakhulu nokumelana ne-ozone kwerabha ye-butyl kwenza ishubhu yangaphakathi yerabha ye-butyl ibe nokumelana okuhle kakhulu nokuwohloka, futhi ukuqina kwayo nempilo yesevisi kungcono kuneshubhu yangaphakathi yenjoloba yemvelo.Ukufinyeleleka komoya okuphansi kakhulu kwerabha ye-butyl kwenza ishubhu elingaphakathi elenziwe ngayo lihlale lisezingeni elifanele lokwehla kwamandla emali isikhathi eside.Lokhu kusebenza okuyingqayizivele kwenza ishubhu yangaphandle yesondo igqoke ngokulinganayo futhi iqinisekise impilo engcono kakhulu yomqhele.Nweba impilo yesevisi yesondo langaphandle, ukhuphule ukuzinza nokuphepha kokushayela, wehlise ukumelana nokugingqika, bese wehlisa ukusetshenziswa kukaphethiloli ukuze ufeze inhloso yokonga amandla.

2. Isicelo kusivalo sebhodlela lezokwelapha:
Isivimbi sebhodlela lezokwelapha siwumkhiqizo werabha okhethekile wokuvaleka nokupakishwa othintana ngqo nezidakamizwa.Ukusebenza kwayo kanye nekhwalithi kuthinta ngqo ukusebenza kahle, ukuphepha, ukuzinza kwekhwalithi kanye nokuba lula kwezidakamizwa.Okhokho bezokwelapha bavame ukuvalwa inzalo ngaphansi kwamazinga okushisa aphezulu kanye nezimo zokucindezela okukhulu noma kuma-disinfectants ahlukahlukene, futhi ngezinye izikhathi badinga ukugcinwa isikhathi eside ngaphansi kwezimo eziphansi zokushisa.Ngakho-ke, kunezidingo eziqinile ezakhiweni zamakhemikhali, izakhiwo zemishini ebonakalayo kanye nezakhiwo zezinto eziphilayo zenjoloba.Njengoba isivalo sebhodlela sithintana ngqo nomuthi, singangcolisa umuthi ngenxa yokusatshalaliswa kwento ekhiphekayo esitokisini sebhodlela emthini, noma sinciphise ukusebenza komuthi ngenxa yokumuncwa kwezinye izingxenye zomuthi. ngesivalo sebhodlela.Irabha ye-butyl ayigcini nje ngokungena kancane, kodwa futhi inokumelana ne-oxidation okuhle kakhulu, ukumelana ne-asidi ne-alkali, ukumelana nokushisa nokumelana nokulimala kwamakhemikhali.Ngemuva kokusetshenziswa kwesivalo sebhodlela lenjoloba ye-butyl, imboni eyenza imithi ingenza lula inqubo yokupakisha encane, isebenzise ikepisi ye-aluminium evulekile, isuse i-wax yokuvala futhi yehlise izindleko, futhi ingasiza nokusetshenziswa komjovo.

3. Ezinye izinhlelo zokusebenza:
Ngaphezu kwalokhu kusetshenziswa okungenhla, irabha ye-butyl inokusetshenziswa okulandelayo: (1) ulwelwesi lwempahla yamakhemikhali.Ngenxa yokumelana nokugqwala kwamakhemikhali okuhle kakhulu, irabha ye-butyl isiyinto ethandwayo yolwelwesi olumelana nokugqwala lwemishini yamakhemikhali.Ukuvuvukala kwevolumu yerabha ye-butyl kuzincibilikisi ezihlukahlukene kuphansi kakhulu, okungesinye sezizathu ezibalulekile zokuthi kungani irabha ye-butyl isetshenziswa kulo mkhakha.(2) Izingubo zokuzivikela nezinto zokuzivikela.Nakuba izinto eziningi zepulasitiki zinokusebenza okuhle kokuzihlukanisa nokuvikela, izinto ezinwebekayo kuphela ezingacabangela ukuguquguquka okudingekayo ekungeneni okuphansi kanye nezingubo ezinethezekile.Ngenxa yokungena kwayo kancane oketshezini namagesi, irabha ye-butyl isetshenziswa kakhulu ezingutsheni zokuzivikela, amaphoncho, izembozo zokuzivikela, imaski yegesi, amagilavu, izicathulo zenjoloba namabhuzu.

Ukulungiselela

Kunezindlela ezimbili eziyinhloko zokukhiqiza zenjoloba ye-butyl ejwayelekile: indlela ye-slurry kanye nendlela yokuxazulula.Indlela ye-slurry ibonakala ngokusebenzisa i-chloromethane njenge-diluent kanye ne-water-alcl3 njengesiqalisi.Emazingeni okushisa aphansi angu-100 ℃, isobutylene kanye nenani elincane le-isoprene kungena i-cationic copolymerization.Inqubo ye-polymerization idinga ukusetshenziswa kwama-catalysts.Ukuze kuthuthukiswe ukusebenza kahle kwama-catalysts, kuyadingeka ukusebenzisa ama-cocatalysts ukuqalisa i-polymerization ezimweni eziningi.Ubuchwepheshe bokukhiqiza bulawulwa yizinkampani zangaphandle zaseMelika kanye nezinkampani zaseJalimane.Inqubo yokukhiqiza yerabha ye-butyl ngendlela ye-slurry ikakhulukazi ihlanganisa izinyathelo ezine: i-polymerization, ukucwengwa komkhiqizo, ukugaywa kabusha kanye nokuhlanza iketela.Indlela yesixazululo yasungulwa yinkampani yaseRussia yenjoloba yokwenziwa ye-taoriati kanye nenkampani yase-Italy.Isici sobuchwepheshe ukuthi inkimbinkimbi ye-alkyl aluminium chloride namanzi isetshenziswa njengesiqalisi sokwenza i-copolymerize isobutene kanye nenani elincane le-isoprene ku-hydrocarbon solvent (njenge-isopentane) ekushiseni kuka - 90 kuya - 70 ℃.Inqubo eyinhloko yokukhiqizwa kwenjoloba ye-butyl ngendlela yesisombululo ihlanganisa ukulungisa, ukupholisa, ukupholisa isistimu ye-initiator kanye nezithako ezixubile, ukuxuba isixazululo senjoloba, ukukhishwa kwegesi nokukhumula, ukubuyisela kanye nokucwengisiswa kwe-solvent kanye ne-monomer engaphenduliwe, ukwelashwa kwerabha ngemva kokwelashwa, njll. izinqubo eziyinhloko ezisizayo zihlanganisa isiqandisi, ukuhlanzwa kwe-reactor, ukulungiselela okungeziwe, njll.

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