N-Methylol acrylamide hmoov
Synonyms in English
N-MAM, HAM, N-MA
chemical khoom
CAS: 924-42-5 EINECS: 213-103-2 Structure: CH2=CHCONHCH2OH
Molecular Formula: C4H7NO2 Melting point: 74-75 ℃
Qhov ceev: 1.074
Dej solubility: <0.1g / 100 mL ntawm 20.5 ℃
Khoom taw qhia thiab nta
N-hydroxymethylacrylamide yog dawb crystalline hmoov.Cov txheeb ze ntom ntom yog 1.185 (23/4 ℃), thiab cov ntsiab lus melting yog 75 ℃.Nyob rau hauv dav dav hydrophilic hnyav kuj yuav yaj, rau fatty acid esters, acrylic acid thiab methylacrylate, cua sov kuj muaj ntau solubility, tab sis yuav luag insoluble nyob rau hauv hydrophobic solvents xws li hydrocarbons, halogenated hydrocarbons.Yuav siv tau raws li tus neeg sawv cev sib txuas, dav siv hauv fiber ntau hloov pauv, ua cov dye, yas binder, av stabilizer, thiab lwm yam. Cov molecule ntawm cov khoom muaj ob daim ntawv cog lus conjugated nrog carbonyl pawg thiab ib pawg reactive hydroxyl methyl pawg.Nws yog ib qho kev sib txuas monomer dav siv rau kev hloov kho fiber ntau, resin ua, adhesives, ntawv, tawv, hlau deg kho tus neeg sawv cev, thiab tseem tuaj yeem siv los hloov kho av.
siv
Nws yog cov khoom siv raw rau kev tsim cov thermosetting resin, lub teeb curing epoxy resin txheej, roj resistant txheej thiab ziab txheej.Nws copolymerization emulsion yog siv rau fiber ntau, ntaub, tawv thiab ntawv txheej.Nws kuj yog siv los ua cov nplaum rau ntoo, hlau, thiab lwm yam.
Siv raws li tus ntoo khaub lig-txuas monomer rau acrylic emulsion.Qhov ntau npaum ntawm acrylic emulsion siab rhiab nplaum nplaum uas muaj carboxyl pawg yog L% ~ 2% ntawm tag nrho cov monomer loj, yog tias ntau tshaj 3%, thawj viscosity yuav txo tau zoo heev.Rau cov emulsion nplaum uas tsis muaj carboxyl pawg, qhov ntau npaum li cas tsis ntau tshaj 5%.MMAM crosslinking cov tshuaj tiv thaiv kub ib leeg yog siab dua, feem ntau 120 ~ 170 ℃, ntxiv cov proton-type catalyst tuaj yeem txo qhov kub ntawm crosslinking.Acrylic acid (AA) tuaj yeem muab cov hydrogen protons, thiab copolymerization nrog acrylate, yog li MMAM los tsim ib tus neeg sawv cev sib txuas nrog AA, tus nqi ntawm 3: 2 yog qhov zoo dua.Tus ntoo khaub lig-linker HA tuaj yeem hloov N-hydroxymethylacrylamide thiab tsis muaj formaldehyde.
pob thiab thauj
B. Cov khoom no tuaj yeem siv tau, 25KG, hnab
C. Khaws ntim rau hauv qhov chaw txias, qhuav thiab qhov cua nyob hauv tsev.Cov thawv ntim khoom yuav tsum tau muab kaw kom nruj tom qab siv txhua zaus ua ntej siv.
D. Cov khoom no yuav tsum raug kaw kom zoo thaum lub sijhawm thauj mus los kom tsis txhob ya raws, muaj zog alkali thiab acid, nag thiab lwm yam impurities los ntawm kev sib xyaw.
