I-Hydroxyethyl acrylate
Ukuhlolisisa komkhiqizo
I-Hydroxyethyl Acrylate (HEA) yi-monomer esebenza ngeendlela ezihlukahlukeneko begodu yinto eqakathekileko yokwakha ikhemikhali ye-polymer. Ine-polymerizable acrylic double bond kanye ne-reactive hydroxyl group ku-molecule efanako. Isakhiwo lesi sivumela bona lula bona ibe ne-copolimerization ngeenhlobo ezinengi zama-monomer lokha nayihlanganyela ekuphenduleni kokuhlanganisa. Yinto ekhanyako, engenambala ukuya ephuzi elikhanyako begodu yaziwa ngokuthuthukisa khulu ukusebenza kwemikhiqizo yokugcina ye-polymeric, ngitjho nanyana isetjenziswa ngamanani amancani.
Iinqophiso eziqakathekileko
| Ipahla | Ukucaciswa / Inani elijwayelekileko |
| Ukuvela | Iketjezi elikhanyako, elingenambala ukuya ephuzi elikhanyako |
| Ukuhlanzeka (%) | ≥ 97.0 |
| Okuqukethwe ngamanzi (%) | ≤ 0.5 |
| Isivimbeli (MEHQ) | 200 ± 50 ppm (nofana njengombana kutjhiwo) |
| I-esidi (njenge-Acrylic Acid) (%) | ≤ 0.05 |
| Umbala (APHA) | ≤ 30 |
| Ukuminyana (20 °C) | ~1.10 g/cm3 |
| Indawo yokubila | ~ 90 °C (ku-5 mmHg) |
| Inani le-Hydroxyl (mg KOH/g) | ~ 480 |
Iinsetjenziswa ezikulu
Imisebenzi emibili ye-HEA yenza bona ibe yinto eqakathekileko emabubulweni amanengi:
Ukugcoba nama-inki:
Ukutjhisa okutjhisako: I-monomer ephambili ekugqokeni kweenkoloyi, amabubulo, kanye neensetjenziswa. Isiqhema se-hydroxyl sihlangana nama-melamine-formaldehyde nofana ama-polyisocyanate resins (ema-PU coatings), anikela ngokuqina okuhle khulu, ukujamelana namakhemikhali, nokujamelana nama-mar.
Iinhlelo ezilapheka ngemisebe: Isetjenziswa njenge-reactive diluent kanye ne-crosslinker kuma-coatings, ama-inki, kanye nama-adhesive. Yisithako esiqakathekileko ekubunjweni kwama-urethane acrylates.
Ama-Photoresist & Photoreactive Polymers: Asetjenziselwa ukukhiqiza ama-photoresist resins wokuphrinta amapuleti kanye nama-elekthronikhi (ama-semiconductors, ama-LCD).
Iinamatheliso nezivala:
Ithuthukisa amandla wokunamathela ezintweni ezihlukahlukeneko, kufaka hlangana iinsimbi namaplastiki.
Ikhuphula ukuminyana kwe-crosslink, okurholela ekutheni kube nokujamelana nokutjhisa okuphezulu, ukujamelana namakhemikhali, nokuqina kokuhlangana ema-adhesives azwakalako (ama-PSA).
Iindwangu nemicu:
Isetjenziswa njenge-co-monomer ema-ejenti wokwelatjhwa kwefayibha kanye nokugcotshwa kwendwangu ukunikela ukujamelana namanzi, ukujamelana nokuvuvuka, nokuqina.
Ukusetjenziswa kwamaphepha:
Ifakwe ekwakhiweni kokugcoba ukwenza ngcono amandla amanzi nawomileko, ukujamelana namanzi, nokuphrinta.
Iinsetjenziswa ezikhethekileko:
Ibubulo lokuthambisa: Isebenza njengekhemikhali ephakathi yokwenza iinsetjenziswa zokuhlanza kanye neenthako zokurhatjha.
I-elekthronikhi: Isetjenziswa njenge-ejenti yokuphelelwa ngamanzi ekulungiseleleni isampula ye-elekthronikhi.
Ikhemistri yokuHlaziya: Isebenza njengekhemikhali yokuvuselela begodu njengengcenye yama-ejenti wokufaka ahlanganiswa namanzi.
Iimpawu eziqakathekileko neenzuzo
Ukusebenza okubili: Isiqhema se-acrylate senza bona kube ne-copolimerization, ngesikhathi isiqhema se-hydroxyl sivumela ukuhlanganiswa nokutjhugululwa kwamakhemikhali.
Ukusebenza okuthuthukisiweko: Kunikela ukuqina okuhle khulu, ukujamelana namakhemikhali, nokunamathelana nama-polymer wokugcina.
Ukuphendula okuphezulu: Ihlangana lula ngama-acrylates, ama-methacrylates, i-styrene, i-vinyl acetate, i-acrylonitrile, nokunye.
Ukusetjenziswa: Ilungele iinkambo ezihlukahlukeneko zokwenza ipholimera, okufaka hlangana isisombululo, ukuhlanganiswa, kanye nokwenza ipholimera ngokumiswa.
Ukusebenza kuhle: Kuletha ukuthuthukiswa okukhulu kwezakhiwo zomkhiqizo ngitjho nasezingeni eliphasi lokufaka (ngokuvamileko 2-10%).
Ukuthamba okuphasi: Kusebenza njenge-diluent ephumelelako eenhlelweni ezilapheka ngemisebe, isiza ekwehliseni ukuthamba ngaphandle kokusebenzisa amakhompawundi we-organic (ama-VOC).
Ukuphathwa nokugcina
Izinga lokutjhisa lokugcina: Beka endaweni epholileko, enomoya omuhle. Izinga lokutjhisa eliphakanyisiweko lokugcina liphakathi kuka-2°C ukuya ku-25°C (36°F ukuya ku-77°F). Balekela ukuqanda kanye namazinga womtjhiso aphakemeko.
Isivimbeli: Siqukethe isivimbeli se-MEHQ ukukhandela ukutjhuguluka okuzenzakalelayo. Isivimbeli sitlhoga ukuba khona kwe-oksijini ukobana sisebenze; ngalokho-ke, ukugcinwa ngaphasi kommoya ongasebenziko (isib., ukugcwalisa i-nitrogen) kuqakathekile ukuzinza kwesikhathi eside.
Isitja: Beka ngaphakathi kweenkonteyina ezivaliweko ezenziwe ngensimbi engagqwali, insimbi ene-resin ye-phenolic, nofana i-polyethylene. Vikela ekukhanyeni.
Isikhathi sokuphila: Ngokuvamileko iinyanga ezi-6 ukuya kwezi-12 kusukela ngelanga lokukhiqiza lokha nazibekwa ngaphasi kwemibandela ephakanyisiweko.
Ukuphathwa: Sebenzisa ngokungena komoya okwaneleko kanye nezilawuli zobunjiniyela. Balekela ukuthintana nesikhumba, amehlo, kanye nezambatho. Yembatha izinto zokuzivikela ezifaneleko (i-PPE), okufakahlangana amagilavu angathathwa makhemikhali, amagilasi wokuvikela, kanye nezambatho zokuzivikela.