Txhais thiab Cov Qauv ntawm Acrylonitrile
Cia peb pib los ntawm kev qhia txog acrylonitrile ua ntej peb tsiv mus rau lwm cov ncauj lus.Acrylonitrile yog ib qho organic compound uas muaj cov tshuaj formula CH2 CHCN.Nws raug cais raws li cov organic compound tsuas yog vim nws feem ntau muaj cov pa roj carbon thiab hydrogen atoms.Raws li txoj cai, thiab hais txog cov pab pawg ua haujlwm (cov pab pawg tseem ceeb thiab txawv ntawm cov atoms), acrylonitrile muaj ob qho tseem ceeb, alkene thiab nitrile.Ib qho alkene yog ib pab pawg ua haujlwm uas muaj cov pa roj carbon-carbon ob daim ntawv cog lus, thaum lub nitrile yog ib qho uas muaj cov pa roj carbon-nitrogen triple daim ntawv cog lus.
Cov khoom ntawm Acrylonitrile
Tam sim no peb paub txog dab tsi acrylonitrile yog, cia peb mus tham txog qee yam ntawm nws cov khoom tseem ceeb.Thaum nws yuav los ntawm cov chaw muag tshuaj, acrylonitrile feem ntau los ua kua ntshiab, tsis muaj xim.Yog tias nws muaj xim daj rau nws, qhov no feem ntau txhais tau hais tias nws muaj impurities thiab tej zaum yuav tsum tau distilled (purifying ib tug kua) ua ntej nws yuav siv tau rau cov tshuaj tiv thaiv thiab tej yam ntawm qhov xwm.Acrylonitrile's boiling point tau raug sim ntsuas los ntawm 77 degrees Celsius, uas yog me ntsis qis rau cov organic kua.Nrog rau qhov ntsuas kub qis no acrylonitrile qee zaum hu ua qhov sib xyaw ua ke, uas txhais tau hais tias cov kua acrylonitrile molecules nkag mus rau theem roj thiab evaporate.Vim li no, nws yog ib lub tswv yim zoo kom tsis txhob tso lub raj mis ntawm acrylonitrile qhib rau saum huab cua vim tias nws yuav evaporate sai sai.
Siv
Qhov tseem ceeb ntawm kev siv acrylonitrile yog cov khoom siv raw rau kev tsim cov acrylic thiab modacrylic fibers.Lwm yam kev siv loj suav nrog kev tsim cov yas (acrylonitrile-butadiene-styrene (ABS) thiab styrene-acrylonitrile (SAN)), nitrile rubbers, nitrile barrier resins, adiponitrile thiab acrylamide.
Acrylonitrile tau siv, hauv kev sib xyaw nrog carbon tetrachloride, ua ib qho fumigant rau hmoov milling thiab bakery khoom noj khoom noj khoom haus thiab khaws cia haus luam yeeb.Txawm li cas los xij, feem ntau cov khoom siv tshuaj tua kab uas muaj acrylonitrile tau yeem tshem tawm los ntawm cov tuam ntxhab.Tam sim no, acrylonitrile ua ke nrog carbon tetrachloride tau sau npe ua cov tshuaj tua kab txwv tsis pub siv.51% ntawm Tebchaws Meskas tau siv acrylonitrile rau acrylic fibers, 18% rau ABS thiab SAN resins, 14% rau adiponitrile, 5% rau acrylamide thiab 3% rau nitrile elastomers.Qhov seem 9% yog siv rau lwm yam (Cogswell 1984).
Post lub sij hawm: Lub Xya hli ntuj-29-2022