2-hydroxyethyl methacrylate(HEMA) yog cov organic polymerization monomer tsim los ntawm cov tshuaj tiv thaiv ntawm ethylene oxide (EO) thiab methacrylic acid (MMA), uas muaj cov pab pawg bifunctional nyob rau hauv lub molecule. Hydroxyethyl methacrylate yog hom tsis muaj xim, pob tshab, thiab yooj yim ntws kua. Soluble nyob rau hauv cov organic solvents. Miscible nrog dej.
| Yam khoom | STANDARD txwv |
| CAS | 868-77-9 |
| Lwm lub npe | HEMA |
| Qhov tshwm sim | Colorless thiab pob tshab kua |
| Purity | ≥97.0% |
| Dawb acid (As AA) | ≤ 0.30% |
| Dej | ≤ 0.30% |
| Chroma | ≤ 30 |
| Inhibitor (PPM) | 200 ± 40 |
Kev siv HEMA
1. Feem ntau yog siv los hloov cov resins thiab coatings. Copolymerization nrog rau lwm cov acrylic monomers tuaj yeem tsim cov acrylic resins nrog active hydroxyl pawg nyob rau hauv lub sab chains, uas muaj peev xwm undergo esterification thiab crosslinking tshua, synthesize insoluble resins, txhim kho adhesion, thiab yuav siv tau raws li cov tshuaj fiber ntau. Nws reacts nrog melamine formaldehyde (los yog urea formaldehyde) resin, epoxy resin, thiab lwm yam. Ntxiv nws rau high-end tsheb xim tuaj yeem tuav nws daim iav gloss rau lub sijhawm ntev. Nws kuj tseem siv tau los ua cov nplaum rau cov khoom siv hluavtaws thiab kev kho mob polymer monomers.
2. HEMA yog siv los tsim cov resins rau coatings, automotive topcoats thiab primers, nrog rau photopolymer resins, luam ntawv boards, inks, gel (contact lenses) thiab tinning khoom coatings, kis electron microscopy (TEM) thiab optical microscopy (LM) embedding reagents, tshwj xeeb tshaj yog rau cov qauv hydration ntawm "sensitive antigen sites". Cov dej dawb zoo li, nplaum, nyias dua li dej, thiab yooj yim rau nkag tau dua li cov resin lossis monomer. Tshwj xeeb yog siv rau kev ua haujlwm ntawm cov pob txha, pob txha mos, thiab nyuaj rau nkag mus rau cov ntaub so ntswg.
3. Kev lag luam yas yog siv los tsim cov acrylic resins uas muaj active hydroxyl pawg. Kev lag luam txheej yog siv ua ke nrog epoxy resins, diisocyanates, melamine formaldehyde resins, thiab lwm yam. Kev lag luam roj yog siv los ua ib qho ntxiv rau lubricating roj ntxuav. Kev lag luam hluav taws xob yog siv los ua lub cev qhuav dej rau electron microscopes. Adhesives siv nyob rau hauv kev lag luam textile los tsim fabrics. Siv los ua tshuaj reagent hauv analytical chemistry. Tsis tas li ntawd, nws kuj yog siv los ua cov dej-soluble embedding tus neeg sawv cev rau synthesizing cov ntaub ntawv kho mob polymer, thermosetting coatings, thiab adhesives.
Yav tom ntej ntawmHEMA:
Cov kws tshuaj ntsuam xyuas kev lag luam tau hais tias vim nws qhov kev ua tau zoo tshaj plaws, hydroxyethyl methacrylate tam sim no muaj kev thov siab rau kev siv, tshwj xeeb tshaj yog nyob rau hauv kev kho mob thiab high-end coatings, nrog rau kev cia siab. Tseem muaj txoj hauv kev txhim kho hauv kev lag luam yav tom ntej ntawm hydroxyethyl methacrylate. Ntawm qhov xav tau: Nrog kev loj hlob sai ntawm kev thov hauv thaj chaw xws li txheej txheej thiab cov nplaum, kev noj ntawm 2-hydroxyethyl methacrylate yog tsis tu ncua. Technically,HEMACov cuab yeej siv thev naus laus zis thiab cov cuab yeej siv polyether tuaj yeem kawm los ntawm ib leeg los ntawm kev tsim, khoom siv, txheej txheem, thiab kev ua haujlwm.Nyob rau hauv cov khoom lag luam: kev tsim cov khoom siv high-end hydroxyethyl methacrylate tuaj yeem txuas mus rau cov khoom siv methacrylic acid thiab ethylene oxide, nrog rau cov khoom siv hauv qab dej-raws li txheej txheej. Nyob rau tib lub sijhawm, hydroxyethyl methacrylate yog cov khoom siv tseem ceeb rau cov khoom lag luam saum npoo av, ua kom cov khoom siv ntawm cov monomers tseem ceeb rau kev lag luam hauv qab, nthuav dav cov khoom lag luam, thiab cov khoom lag luam nce ntxiv. Nrog rau kev lag luam muaj zog, HEMA kev lag luam tau txhim kho. . Txhawm rau txhawm rau txhim kho nws txoj kev lag luam, lub tuam txhab tau txiav txim siab los ua kom nws cov khoom qub tsim muaj peev xwm thiab txuas ntxiv ua kom huv cov txheej txheem qub pov tseg kom nws muaj peev xwm ntau lawm.
Post lub sij hawm: Jan-30-2024