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1,8-diazabicyclo[5.4.0]undec-7-ene Cas# 6674-22-2 DBU Isithombe Esifakiwe
  • 1,8-diazabicyclo[5.4.0]undec-7-ene Cas# 6674-22-2 DBU
  • 1,8-diazabicyclo[5.4.0]undec-7-ene Cas# 6674-22-2 DBU
  • 1,8-diazabicyclo[5.4.0]undec-7-ene Cas# 6674-22-2 DBU

1,8-diazabicyclo[5.4.0]undec-7-ene Cas# 6674-22-2 DBU

  • Ibanga le-MOFAN:MOFAN DBU
  • Umkhiqizo Wokuncintisana:I-DBU; I-RC Catalyst 6180, I-DBU
  • Igama lamakhemikhali:"1,8-diazabicyclo[5.4.0]undec-7-ene"; 2,3,4,6,7,8,9,10-octahydropyrimido[1,2-a]azepine
  • Inombolo Ye-Cas:6674-22-2
  • Ifomula yama-molecule:C9H16N2
  • Isisindo sama-molecule:152.237

    • Imininingwane Yomkhiqizo

    Amathegi Omkhiqizo

    Incazelo

    I-MOFAN DBU iyi-amine yesithathu ekhuthaza kakhulu ukusabela kwe-urethane (polyol-isocyanate) ku-foam encane eguquguqukayo, kanye nasekusetshenzisweni kokumboza, okunamathelayo, okunamathelayo kanye ne-elastomer. Ibonisa ikhono elinamandla kakhulu lokugaya, inikeza iphunga eliphansi futhi isetshenziswa ekwakhiweni okuqukethe ama-isocyanate e-aliphatic njengoba edinga ama-catalyst aqinile kakhulu ngoba awasebenzi kakhulu kune-isocyanate e-aromatic.

    Isicelo

    I-MOFAN DBU itholakala ku-foam encane eguquguqukayo kancane, futhi isetshenziswa ekumbozeni, ekunamathiseni, ekuvaleni nasekusebenziseni i-elastomer.

    I-MOFAN DBU3
    I-MOFAN DMAEE03
    I-MOFAN DMDEE4

    Izakhiwo Ezijwayelekile

    Ukubukeka uketshezi olucacile olungenambala
    I-Flash Point (TCC) 111°C
    Amandla Adonsela Phansi Aqondile (Amanzi = 1) 1.019
    Indawo Yokubilisa 259.8°C

    Imininingwane yezentengiselwano

    Ukubukeka, 25℃ i-liqiud engenambala
    Okuqukethwe % 98.00min
    Okuqukethwe kwamanzi % Umkhawulo ongu-0.50

    Iphakheji

    25kg noma 200 kg / isigubhu noma ngokwezidingo zamakhasimende.

    Izitatimende zengozi

    H301: Kunobuthi uma kugwinywa.

    H314: Kubangela ukusha okukhulu kwesikhumba kanye nomonakalo wamehlo.

    Izinto zelebula

    2
    3

    Izithombe

    Igama lesiginali Ingozi
    Inombolo ye-UN 2922
    Ikilasi 8+6.1
    Igama lokuthumela elifanele kanye nencazelo Uketshezi OLUBHUBHISAYO, LUNOBUTHI, NOS (1,8-Diazabicyclo[5.4.0]undec-7-ene)

    Ukuphatha nokugcina

    Izinyathelo zokuphepha zokuphatha ngokuphephile
    Qinisekisa ukuthi ungena umoya kahle ezitolo nasezindaweni zokusebenza. Phatha ngokuhambisana nemikhuba emihle yokuhlanzeka kwezimboni kanye nokuphepha. Uma usebenzisa ungadli, ungaphuzi noma ubheme. Izandla kanye/noma ubuso kufanele bugezwe ngaphambi kwekhefu kanye nasekupheleni kweshifti.

    Ukuvikelwa emlilweni nasekuqhumeni
    Vimbela ukushaja kwe-electrostatic - imithombo yokushisa kufanele igcinwe ihlanzekile - izicishi-mlilo kufanele zigcinwe ziseduze.

    Imibandela yokugcina ephephile, okuhlanganisa noma yikuphi ukungahambisani
    Hlukanisa kuma-asidi nezinto ezakha i-asidi.
    Ulwazi olwengeziwe mayelana nezimo zokugcina: Gcina isitsha sivaliwe kahle endaweni epholile, enomoya omuhle.

    Imibuzo Evame Ukubuzwa

    Ngidinga isisekelo esiqinile kakhulu sokuhlanganiswa kwe-CO2 kuma-carbonate ajikelezayo. Ingabe i-DBU iyafaneleka?

    Yebo, i-DBU ingenye yezisekelo eziqinile kakhulu ezingezona ezenucleophilic, ezilungele ukusebenzisa i-CO2 nama-epoxide.

    I-polyurethane elastomer yami ayinawo amandla okuqina kwe-hydrolytic. Ingabe i-DBU ingasiza?

    Cha, i-DBU ingakhuthaza i-hydrolysis; sebenzisa i-tin noma i-zinc catalyst esikhundleni salokho.

    Ingasetshenziswa kanjani i-DBU njenge-catalyst ye-trimerization ye-PIR foam esebenza kahle kakhulu?

    Engeza i-0.3–0.8 phr DBU kanye ne-potassium catalyst ukuze uthole okuqukethwe okuphezulu kakhulu kwe-isocyanurate (>30%).

    Ingabe i-DBU iyancibilika kuma-polyol avamile e-polyether?

    Yebo, iyaxutshwa nama-polyol amaningi futhi ayidingi ukuphathwa okukhethekile.

    Uhlelo lwami lwe-epoxy-amine lunesikhathi eside kakhulu sokwelapha ekushiseni okujwayelekile. Ingabe i-DBU ingayisheshisa?

    Yebo, i-DBU iyisisheshisi esinamandla; sebenzisa i-0.1–0.5 phr ukuze unciphise kakhulu isikhathi sokuphila kwebhodwe kanye nesikhathi sokulinyazwa.

    Ingabe i-DBU ibangela ukushintsha kombala kuma-polyurethane acacile?

    Kungabangela ukuphuzi ngokuhamba kwesikhathi ngenxa yokuthi kuyisisekelo esiqinile; gwema ukusetshenziswa okucacile.

    Ingabe i-DBU ingasetshenziswa ukugqugquzela ukusabela kwe-isocyanate ngama-alcohols ezindaweni ezishisa kakhulu?

    Yebo, ihlala isebenza ngisho nangaphansi kuka-0°C, okwenza ibe usizo ezinhlelweni ze-PU zasebusika.

    Iyini izinga elijwayelekile lokusetshenziswa kwe-DBU ohlelweni lokuphonswa kwe-polyurethane ezingxenyeni ezinkulu?

    0.05–0.15 phr ukugwema i-exotherm eningi; hlanganisa njalo ne-catalyst yejeli ukuze kube nebhalansi.

    Ikhasimende lami lidinga i-catalyst engenawo uthini noma i-mercury. Ingabe i-DBU iyindlela engcono?

    Yebo, i-DBU iyisithako esiqinile esingenansimbi, esifanele ukusetshenziswa kwezokwelapha kanye nokuxhumana nokudla ngemva kokukhishwa okufanele.

    Kufanele ngibhekane kanjani ne-DBU ukuze ngigweme ukucasuka kwesikhumba?

    Sebenzisa amagilavu ​​nezibuko; i-DBU iyagqwala. Nciphisa ukuchitheka nge-acetic acid encibilikisiwe.

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