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Bungwe Limodzi Lothandizira Kumwamba

Brominated Butyl Rubber (BIIR)

Kufotokozera Kwachidule:

Brominated butyl rabara (BIIR) ndi isobutylene isoprene copolymer elastomer yokhala ndi bromine yogwira ntchito.Chifukwa mphira wa butyl wa brominated uli ndi unyolo waukulu womwe umakhala wodzaza ndi mphira wa butyl, umakhala ndi magwiridwe antchito osiyanasiyana a butyl polima, monga kulimba kwa thupi, kugwetsa kwabwino kwa vibration, kutsika pang'ono, kukana kukalamba komanso kukana kukalamba kwa nyengo.Kupanga ndi kugwiritsa ntchito liner yamkati ya halogenated butyl rabara yakwaniritsa matayala amakono muzinthu zambiri.Kugwiritsiridwa ntchito kwa ma polima oterowo mu tayala lamkati la liner kumatha kupititsa patsogolo kukakamiza kugwira ntchito, kukonza kumamatira pakati pa chingwe chamkati ndi mtembo ndikupangitsa kuti tayalalo likhale lolimba.


Tsatanetsatane wa Zamalonda

Zolemba Zamalonda

Makhalidwe Azinthu

Rabara ya Butyl ndi polima yozungulira yokhala ndi isobutylene ngati thupi lalikulu komanso isoprene yaying'ono.Pa unyolo waukulu wa molekyulu ya mphira wa butyl, gulu lina lililonse la methylene, pali magulu awiri a methyl omwe amapangidwa mozungulira mozungulira unyolo waukulu, zomwe zimapangitsa kuti pakhale chotchinga chachikulu, kupangitsa kuti mamolekyulu a mphira wa butyl agwirizane ndi unyolo wa mamolekyulu kukhala wosauka kwambiri. .Komabe, imapangitsanso mphira wa butyl kukhala wabwino kwambiri pakulimba kwa mpweya, kukhala woyamba pakati pa mphira onse.

Kuphatikiza pa kulimba kwa mpweya wabwino, ma vulcanizates a rabara a butyl amakhalanso ndi kukana kwambiri kutentha.Sulfur vulcanized butyl rabara itha kugwiritsidwa ntchito mumlengalenga kwa nthawi yayitali pa 100 ℃ kapena kutentha pang'ono.Kutentha kwa ntchito ya mphira wa butyl wotenthedwa ndi utomoni kumatha kufika 150-200 ℃.Kukalamba kwa okosijeni wamafuta a mphira wa butyl ndi wa mtundu wowonongeka, ndipo ukalamba umakonda kufewa.Chifukwa cha kuchepa kwamphamvu kwa ma molekyulu a rabara ya butyl komanso momwe ma inert chemical reaction, mphira wa butyl ali ndi kutentha kwabwino komanso kukana kukalamba kwa okosijeni.

Njira yamalonda: mphira wa brominated butyl ndiye chinthu chathu chothandizira.Oda yocheperako ndi matani 20.

Brominated Butyl Rubber (BIIR) (3)
Brominated Butyl Rubber (BIIR) (2)

Kugwiritsa ntchito

1. Kugwiritsa ntchito matayala agalimoto ndi matayala agalimoto yamagetsi:
Rubber wa Butyl uli ndi kukana kwambiri kutentha komanso kukana misozi.Machubu amkati (kuphatikiza njinga zamoto ndi njinga) opangidwa ndi mphira wa butyl amatha kukhalabe ndi mphamvu zokhazikika komanso zong'ambika atakumana ndi malo otentha kwa nthawi yayitali, zomwe zimachepetsa kuphulika pakagwiritsidwa ntchito.Chubu chamkati cha mphira cha butyl chimatha kuwonetsetsa kuti moyo wa tayala ndi wotetezeka kwambiri pakatentha kwambiri kapena pakakwera kwambiri.Kung'ambika kwakung'ono kumatha kuchepetsa kukula kwa dzenje ndikupanga kukonzanso kwa chubu lamkati la mphira wa butyl kukhala kosavuta komanso kosavuta.Kukaniza kwa okosijeni kwabwino kwambiri komanso kukana kwa ozoni kwa rabara ya butyl kumapangitsa chubu chamkati cha mphira wa butyl kukhala ndi kukana kwabwino kwambiri pakuwonongeka, ndipo kulimba kwake ndi moyo wantchito ndizabwinoko kuposa chubu lamkati la mphira wachilengedwe.Mpweya wochepa kwambiri wa rabara wa butyl umapangitsa chubu chamkati chopangidwa kuti chisungike pakukwera koyenera kwa inflation kwa nthawi yayitali.Kuchita kwapadera kumeneku kumapangitsa kuti chubu lakunja la tayala livale mofanana ndikuwonetsetsa moyo wabwino kwambiri wa korona.Wonjezerani moyo wautumiki wa tayala lakunja, onjezerani kukhazikika ndi chitetezo cha galimoto, kuchepetsa kukana kugubuduza, ndiyeno muchepetse kugwiritsa ntchito mafuta kuti mukwaniritse cholinga chopulumutsa mphamvu.

2. Kugwiritsa ntchito poyimitsa botolo lachipatala:
Medical botolo choyimitsa ndi chinthu chapadera cha rabara chosindikizidwa ndikuyika chomwe chimalumikizana mwachindunji ndi mankhwala.Kuchita kwake ndi khalidwe lake zimakhudza mwachindunji mphamvu, chitetezo, kukhazikika kwabwino komanso kuphweka kwa mankhwala.Nkhata zachipatala nthawi zambiri zimasungidwa kutentha kwambiri komanso kupanikizika kwambiri kapena mankhwala ophera tizilombo tosiyanasiyana, ndipo nthawi zina zimafunika kusungidwa kwa nthawi yayitali pansi pa kutentha kochepa.Choncho, pali zofunika okhwima pa mankhwala katundu, thupi makina katundu ndi kwachilengedwenso katundu wa mphira.Popeza choyimitsa botolo chimalumikizana mwachindunji ndi mankhwalawa, chikhoza kuipitsa mankhwalawa chifukwa cha kubalalitsidwa kwa zinthu zomwe zimachotsedwa mu botolo la botolo kuti zilowe mu mankhwala, kapena kuchepetsa ntchito ya mankhwala chifukwa cha kuyamwa kwa zigawo zina za mankhwala. pa choyimitsa botolo.mphira butyl osati permeability otsika, komanso ali kwambiri makutidwe ndi okosijeni kukana, asidi ndi alkali kukana, kutentha kukana ndi kukana kuwonongeka kwa mankhwala.Pambuyo poyimitsa botolo la mphira wa butyl atagwiritsidwa ntchito, fakitale yopangira mankhwala imatha kupangitsa kuti ma phukusi ang'onoang'ono asamavutike, kugwiritsa ntchito kapu ya aluminiyamu yotseguka, kuchotsa sera yosindikiza ndikuchepetsa mtengo, komanso kumathandizira kugwiritsa ntchito jakisoni.

3. Ntchito zina:
Kuphatikiza pa ntchito zomwe tafotokozazi, labala ya butyl ili ndi ntchito zotsatirazi: (1) zitsulo zopangira mankhwala.Chifukwa cha kukana kwa dzimbiri kwa mankhwala, mphira wa butyl wakhala chinthu chomwe chimakondedwa kwambiri pakuyika zida zama mankhwala.Kutupa kwa mphira wa butyl mu zosungunulira zosiyanasiyana ndikotsika kwambiri, chomwe ndi chimodzi mwazifukwa zazikulu zomwe mphira wa butyl umagwiritsidwa ntchito pamundawu.(2) Zovala zodzitetezera ndi zinthu zodzitetezera.Ngakhale zida zambiri zapulasitiki zili ndi ntchito yabwino yodzipatula komanso chitetezo, zida zotanuka zokha zimatha kuganizira kusinthasintha kofunikira pakutsika kochepa komanso zovala zabwino.Chifukwa cha kuchepa kwake kumadzi ndi mpweya, mphira wa butyl amagwiritsidwa ntchito kwambiri mu zovala zoteteza, ponchos, zotetezera, masks a gasi, magolovesi, nsapato za rabara ndi nsapato.

Kukonzekera

Pali njira ziwiri zazikulu zopangira mphira wamba wa butyl: njira ya slurry ndi njira yothetsera.Njira ya slurry imadziwika ndi kugwiritsa ntchito chloromethane monga diluent ndi madzi-alcl3 monga woyambitsa.Pa kutentha otsika - 100 ℃, isobutylene ndi pang'ono isoprene amakumana cationic copolymerization.Njira ya polymerization imafuna kugwiritsa ntchito chothandizira.Pofuna kupititsa patsogolo luso la zopangira, m'pofunika kugwiritsa ntchito cocatalysts kuyambitsa polymerization nthawi zambiri.Ukadaulo wopanga umayendetsedwa ndi makampani akunja aku America ndi makampani aku Germany.Kapangidwe ka mphira wa butyl pogwiritsa ntchito slurry makamaka kumaphatikizapo njira zinayi: polymerization, kuyenga zinthu, kubwezeretsanso ndi kuyeretsa ketulo.Njira yothetsera vutoli idapangidwa ndi kampani yaku Russia ya taoriati yopanga mphira komanso kampani yaku Italy.The luso mbali ndi zovuta alkyl aluminium kolorayidi ndi madzi ntchito monga initiator kuti copolymerize isobutene ndi pang'ono isoprene mu hydrocarbon zosungunulira (monga isopentane) pa kutentha kwa - 90 kuti - 70 ℃.Njira yayikulu yopangira mphira wa butyl ndi njira yothetsera imaphatikizapo kukonzekera, kuzirala, polymerization ya dongosolo loyambitsa ndi zosakaniza zosakaniza, kusakaniza njira ya rabara, degassing ndi kuvula, kuchira ndi kuyenga zosungunulira ndi zosagwirizana ndi monomer, pambuyo pa mankhwala a rabala, etc. njira zazikulu zothandizira zikuphatikizapo firiji, kuyeretsa riyakitala, kukonzekera zowonjezera, ndi zina zotero.


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