DAAM: Lub Hoobkas Diacetone Acrylamide

Diacetone Acrylamide (DAAM) yog ib qho monomer uas siv tau ntau yam hauv ntau yam txheej txheem polymerization los tsim cov resins, coatings, adhesives, thiab lwm yam khoom siv uas xav tau kev ruaj khov thermal, dej tsis kam, thiab cov khoom nplaum. DAAM sawv tawm vim nws cov qauv tshuaj tshwj xeeb thiab lub peev xwm los hla kev sib txuas lus nrog lwm cov tshuaj, xws li adipic dihydrazide (ADH), ua rau cov khoom siv muaj kev ua tau zoo dua.

Cov Khoom Siv Tshuaj ntawm DAAM

  • Lub Npe IUPAC:N-(1,1-Dimethyl-3-oxo-butyl)acrylamide
  • Cov mis tshuaj:C9H15NO2
  • Qhov Hnyav Molecular:169.22 g/mol
  • Tus lej CAS:2873-97-4
  • Tsos:Dawb crystalline khoom los yog hmoov
  • Kev yaj tau:Yaj hauv dej, ethanol, thiab lwm yam kuab tshuaj polar
  • Melting Point:53°C txog 55°C

Cov Pab Pawg Ua Haujlwm Tseem Ceeb

  1. Pawg Acrylamide:Pab txhawb rau polymerizability los ntawm cov tshuaj tiv thaiv dawb-radical.
  2. Pawg Ketone:Muab cov chaw ua haujlwm rau kev sib txuas nrog cov tshuaj xws li hydrazines.

Kev sib xyaw ntawm DAAM

DAAM yog tsim los ntawm kev sib xyaw ntawm diacetone cawv nrog acrylonitrile, ua raws li catalytic hydrogenation lossis hydrolysis kauj ruam los qhia cov amide pawg. Cov txheej txheem ntau lawm ua kom ntseeg tau tias cov khoom muaj kev ntshiab siab uas haum rau kev siv hauv kev lag luam.

Cov Kauj Ruam Tseem Ceeb ntawm Kev Teb:

  1. Cawv Diacetone + Acrylonitrile → Cov Tshuaj Sib Xyaws Nruab Nrab
  2. Hydrogenation los yog Hydrolysis → Diacetone Acrylamide

Cov ntawv thov ntawm DAAM

1. Cov nplaum

  • Lub luag haujlwm ntawm DAAM:Txhim kho cov khoom sib txuas los ntawm kev txhawb nqa kev sib txuas thiab thermal stability.
  • Piv txwv li:Cov nplaum uas rhiab rau siab nrog lub zog tev tawv zoo dua thiab ruaj khov dua.

2. Cov Tshuaj Pleev Xim Uas Los Ntawm Dej

  • Lub luag haujlwm ntawm DAAM:Ua haujlwm ua tus neeg sawv cev ua zaj duab xis uas muab kev tiv thaiv dej zoo heev thiab kev ywj pheej.
  • Piv txwv li:Cov xim pleev kom zoo nkauj thiab cov xim pleev rau kev lag luam rau kev tiv taus xeb thiab kev hnav.

3. Cov Neeg Sawv Cev Ua tiav Textile

  • Lub luag haujlwm ntawm DAAM:Muab cov khoom tiav ruaj khov thiab cov khoom tiv thaiv kev laus.
  • Piv txwv li:Siv rau hauv cov ntaub uas tsis yog hlau rau cov ntaub.

4. Hydrogels thiab Biomedical Applications

  • Lub luag haujlwm ntawm DAAM:Pab txhawb rau kev tsim cov biocompatible hydrogels.
  • Piv txwv li:Cov txheej txheem xa tshuaj uas tswj tau.

5. Daim Ntawv thiab Ntim Khoom

  • Lub luag haujlwm ntawm DAAM:Muab cov khoom muaj zog thiab cov khoom tiv thaiv dej noo zoo dua.
  • Piv txwv li:Cov ntawv tshwj xeeb rau kev ntim khoom noj thiab dej haus.

6. Cov tshuaj nplaum

  • Lub luag haujlwm ntawm DAAM:Txhim kho qhov yooj ywm thiab tiv taus kev tawg thaum muaj kev ntxhov siab.
  • Piv txwv li:Cov tshuaj nplaum uas hloov kho los ntawm silicone rau kev tsim kho thiab kev siv hauv tsheb.

Cov txiaj ntsig ntawm kev siv DAAM

  1. Muaj peev xwm sib txuas ntau yam:Tsim cov tes hauj lwm muaj zog nrog cov cross-linkers raws li hydrazide zoo li ADH.
  2. Kev Ruaj Ntseg Thermal:Xyuas kom meej tias nws ruaj khov nyob rau hauv qhov kub thiab txias.
  3. Kev Tiv Thaiv Dej:Tsim cov yeeb yaj kiab thiab cov qauv uas tsis pub dej nkag.
  4. Kev lom tsawg:Muaj kev nyab xeeb dua rau kev siv piv rau qee cov monomers lwm txoj.
  5. Kev Sib Tw Dav Dav:Ua haujlwm nrog ntau yam txheej txheem polymerization, suav nrog emulsion, suspension, thiab cov txheej txheem daws teeb meem.

Kev Sib Haum Xeeb nrog Adipic Dihydrazide (ADH)

Kev sib xyaw ua ke ntawm DAAM nrog ADH yog siv dav hauv cov kab ke sib txuas polymer. Cov tshuaj tiv thaiv ntawm ketone pawg ntawm DAAM thiab hydrazide pawg hauv ADH ua rau muaj kev sib txuas hydrazone ruaj khov heev, ua rau:

  • Txhim kho lub zog kho tshuab.
  • Kev ua haujlwm thermal zoo heev.
  • Kev hloov pauv raws li qhov xav tau ntawm cov qauv.

Cov Txheej Txheem Tshuaj Tiv Thaiv:

  1. Kev Sib Cuam Tshuam ntawm Ketone-Hydrazide:DAAM + ADH → Hydrazone Bond
  2. Cov ntawv thov:Cov txheej polyurethane uas ntws los ntawm dej, cov ntaub ntawv kho tus kheej, thiab lwm yam.

Kev Nkag Siab Txog Kev Lag Luam thiab Cov Qauv

Kev Xav Tau Thoob Ntiaj Teb

Kev ua lag luam rau DAAM tau pom kev loj hlob tseem ceeb vim nws siv ntau ntxiv hauv cov tshuaj uas tsis ua rau ib puag ncig puas tsuaj, cov tshuaj uas los ntawm dej thiab cov tshuab polymer siab heev. Cov lag luam xws li tsheb, kev tsim kho, thiab cov khoom siv hluav taws xob tsav qhov kev xav tau rau cov kev daws teeb meem raws li DAAM.

Kev tsim kho tshiab

Cov kev nce qib tsis ntev los no tsom mus rau:

  1. Lwm Txoj Hauv Kev Siv Bio-Based:Kev tsim cov DAAM los ntawm cov peev txheej rov ua dua tshiab.
  2. Cov Txheej Txheem Ua Haujlwm Zoo:Kev koom ua ke rau hauv cov txheej txheem nanocomposite rau cov khoom nto zoo dua.
  3. Kev Ntim Khoom Uas Ruaj Khov:Siv rau hauv cov khoom sib xyaw ua los ntawm cov khoom siv biodegradable.

Kev Tswj thiab Kev Khaws Cia

  • Kev Ceev Faj Txog Kev Nyab Xeeb:Tsis txhob ua pa lossis kov daim tawv nqaij; siv cov khoom siv tiv thaiv tus kheej (PPE) kom tsim nyog.
  • Cov Cai Khaws Cia:Khaws cia rau qhov chaw txias, qhuav, thiab muaj cua nkag zoo; tsis txhob cia raug dej noo thiab cua sov.
  • Lub Neej Txee:Feem ntau ruaj khov txog li 24 lub hlis nyob rau hauv cov xwm txheej pom zoo.

Diacetone Acrylamide (DAAM) yog ib qho tseem ceeb hauv kev tshawb fawb txog cov ntaub ntawv niaj hnub no, muab cov yam ntxwv tshwj xeeb uas ua rau nws tsis tseem ceeb hauv cov ntawv thov ua haujlwm siab. Txij li nws lub peev xwm sib txuas ntau yam mus rau nws cov ntawv thov dav dav, DAAM tseem ua lub luag haujlwm tseem ceeb hauv kev txhim kho cov nplaum, cov txheej txheem, thiab cov polymers. Nws qhov sib xws nrog cov thev naus laus zis tshiab uas ruaj khov ua rau nws yog ib qho tseem ceeb hauv kev tsim kho tshiab yav tom ntej.

Lub sijhawm tshaj tawm: Lub Kaum Ob Hlis-15-2024