I-Hydroxyethyl acrylate
Ukubuka Konke Komkhiqizo
I-Hydroxyethyl Acrylate (HEA) iyi-monomer esebenza ngendlela ehlukahlukene futhi iyisakhiwo esibalulekile kumakhemikhali e-polymer. Ine-polymerizable acrylic double bond kanye neqembu le-reactive hydroxyl ku-molecule efanayo. Lesi sakhiwo siyivumela ukuthi ikwazi ukungena kalula ku-copolymerization ngezinhlobo eziningi zama-monomers ngenkathi ihlanganyela ekuphenduleni kwe-crosslinking. Iwuketshezi olucacile, olungenambala kuya koluphuzi olukhanyayo futhi yaziwa ngokuthuthukisa kakhulu izakhiwo zokusebenza kwemikhiqizo yokugcina ye-polymeric, ngisho noma isetshenziswa ngobuningi obuncane.
Imininingwane Eyinhloko
| Impahla | Ukucaciswa / Inani Elijwayelekile |
| Ukubukeka | Uketshezi olucacile, olungenambala kuya koluphuzi olukhanyayo |
| Ubumsulwa (%) | ≥ 97.0 |
| Okuqukethwe kwamanzi (%) | ≤ 0.5 |
| Inhibitor (MEHQ) | 200 ± 50 ppm (noma njengoba kuchaziwe) |
| Ubusidi (njenge-Acrylic Acid) (%) | ≤ 0.05 |
| Umbala (i-APHA) | ≤ 30 |
| Ubuningi (20 °C) | ~1.10 g/cm³ |
| Indawo Yokubilisa | ~ 90 °C (ku-5 mmHg) |
| Inani le-Hydroxyl (mg KOH/g) | ~ 480 |
Izinhlelo Eziyinhloko
Ukusebenza okubili kwe-HEA kwenza kube yinto ebalulekile emikhakheni eminingi:
Izembozo kanye noyinki:
Izembozo Zokubeka I-Thermosetting: I-monomer eyinhloko kwezembozo zezimoto, zezimboni, kanye nezemishini. Iqembu le-hydroxyl lihlangana ne-melamine-formaldehyde noma i-polyisocyanate resins (kwezembozo ze-PU), linikeza ubulukhuni obuhle kakhulu, ukumelana namakhemikhali, kanye nokumelana ne-mar.
Izinhlelo Zokwelapha Imisebe: Zisetshenziswa njengesihlanzi esisebenzayo kanye nesixhumanisi esihlanganisayo ezimbozweni, uyinki, kanye nezinamathiseli eziphulukiswa yi-UV/EB. Ziyisithako esibalulekile ekwakhiweni kwama-acrylates e-urethane.
Ama-Photoresist nama-Photoreactive Polymers: Asetshenziswa ekukhiqizeni ama-resin e-photoresist amapuleti okuphrinta kanye nama-elekthronikhi (ama-semiconductor, ama-LCD).
Izinto zokunamathisela kanye nezinamathiseli:
Kuthuthukisa amandla okunamathela ezintweni ezahlukahlukene, okuhlanganisa izinsimbi kanye nepulasitiki.
Kuthuthukisa ubuningi be-crosslink, okuholela ekumelaneni nokushisa okuphezulu, ukumelana namakhemikhali, kanye namandla okuhlangana kuma-adhesive esakhiwo kanye ne-pressure-sensitive (PSAs).
Izindwangu Nezintambo:
Isetshenziswa njenge-monomer ekwelapheni i-fiber kanye ne-lace coating ukuze inikeze ukumelana namanzi, ukumelana nemibimbi, kanye nokuqina.
Ukucutshungulwa Kwephepha:
Kufakwe ekwakhiweni kokumboza ukuze kuthuthukiswe amandla amanzi nokoma, ukumelana namanzi, kanye nokunyatheliswa kalula.
Izicelo Ezikhethekile:
Imboni Yokugcoba: Isebenza njengesikhungo samakhemikhali sokwenza insipho kanye nezithasiselo zokusabalalisa.
I-elekthronikhi: Isetshenziswa njenge-ejenti yokukhipha amanzi emzimbeni ekulungiseleleni isampula ye-electron microscopy.
I-Analytical Chemistry: Isebenza njenge-reagent yamakhemikhali kanye nengxenye kuma-ejenti okushumeka axutshwa ngamanzi.
Izici Eziyinhloko Nezinzuzo
Ukusebenza Okubili: Iqembu le-acrylate livumela i-copolymerization, kuyilapho iqembu le-hydroxyl livumela ukuxhumanisa kanye nokuguqulwa kwamakhemikhali.
Ukusebenza Okuthuthukisiwe: Kunikeza ukuqina okuvelele, ukumelana namakhemikhali, kanye nokunamathela kuma-polymer okugcina.
I-High Reactivity: I-copolymerized kalula ngama-acrylates, ama-methacrylates, i-styrene, i-vinyl acetate, i-acrylonitrile, nokuningi.
Ukuguquguquka: Kufanelekile ezinqubweni ezahlukahlukene zokwenziwa kwe-polymerization, kufaka phakathi isixazululo, i-emulsion, kanye ne-suspension polymerization.
Ukusebenza Kahle Kakhulu: Kuletha intuthuko enkulu ezimpahleni zomkhiqizo ngisho nasemazingeni aphansi okufakwa (ngokuvamile 2-10%).
Ukuqina Okuphansi: Kusebenza njengesihlanzi esisebenzayo esisebenzayo ezinhlelweni ezilapheka ngemisebe, kusiza ekunciphiseni ukuqina kokwakheka ngaphandle kokusebenzisa ama-volatile organic compounds (ama-VOC).
Ukuphatha Nokugcina Isitoreji
Izinga Lokushisa Lokugcina: Gcina endaweni epholile, enomoya omuhle. Izinga lokushisa elinconywayo lokugcina liphakathi kuka-2°C no-25°C (36°F no-77°F). Gwema ukubanda kanye namazinga okushisa aphezulu.
Inhibitor: Iqukethe i-MEHQ inhibitor ukuvimbela i-polymerization ezenzakalelayo. I-inhibitor idinga ukuba khona komoya-mpilo ukuze isebenze; ngakho-ke, ukugcinwa ngaphansi komkhathi ongasebenzi (isb., i-nitrogen padding) kubalulekile ukuze kuhlale isikhathi eside.
Isitsha: Gcina ezitsheni ezivalwe kahle ezenziwe ngensimbi engagqwali, insimbi ehlanganiswe ne-phenolic resin, noma i-polyethylene. Vikela ekukhanyeni.
Isikhathi Sokuphila Seshelufu: Ngokuvamile izinyanga eziyi-6 kuya kweziyi-12 kusukela osukwini lokwenziwa kwalo uma ligcinwa ngaphansi kwezimo ezinconywayo.
Ukuphatha: Sebenzisa ngokulawula okwanele komoya kanye nobunjiniyela. Gwema ukuthintana nesikhumba, amehlo, kanye nezingubo. Gqoka imishini yokuzivikela efanele (i-PPE), okuhlanganisa amagilavu amelana namakhemikhali, izibuko zokuphepha, kanye nezingubo zokuzivikela.