I-Hydroxyethyl acrylate
Isishwankathelo seMveliso
I-Hydroxyethyl Acrylate (HEA) yi-monomer esebenza ngeendlela ezahlukeneyo kwaye isisiseko sokwakha kwi-polymer chemistry. Ine-polymerizable acrylic double bond kunye neqela le-reactive hydroxyl kwi-molecule enye. Olu lwakhiwo luyivumela ukuba ikwazi ukungena kwi-copolymerization ngokulula kunye noluhlu olubanzi lwee-monomers ngelixa ithatha inxaxheba kwii-crosslinking reactions. Lulwelo olucacileyo, olungenambala ukuya koluphuzi olukhanyayo kwaye lwaziwa ngokuphucula kakhulu iipropati zokusebenza kweemveliso zokugqibela ze-polymeric, nokuba zisetyenziswa ngobuninzi obuncinci.
Iinkcukacha eziphambili
| Ipropati | Inkcazo / Ixabiso eliqhelekileyo |
| Inkangeleko | Ulwelo olucacileyo, olungenambala ukuya kolutyheli olukhanyayo |
| Ubunyulu (%) | ≥ 97.0 |
| Umthamo wamanzi (%) | ≤ 0.5 |
| Inhibitor (MEHQ) | 200 ± 50 ppm (okanye njengoko kuchaziwe) |
| Ubumuncu (njenge-Acrylic Acid) (%) | ≤ 0.05 |
| Umbala (i-APHA) | ≤ 30 |
| Uxinano (20 °C) | ~1.10 g/cm³ |
| Indawo yokubilisa | ~ 90 °C (kwi-5 mmHg) |
| Ixabiso leHydroxyl (mg KOH/g) | ~ 480 |
Izicelo eziphambili
Ukusebenza kwe-HEA okubini kwenza kube yinto ebalulekileyo kumashishini amaninzi:
Iingubo kunye nee-Inks:
Iingubo zeThermosetting: I-monomer ephambili kwiingubo zemoto, zemizi-mveliso, nezezixhobo. Iqela le-hydroxyl lidibana ne-melamine-formaldehyde okanye i-polyisocyanate resins (kwiingubo ze-PU), zibonelela ngobunzima obuhle kakhulu, ukumelana neekhemikhali, kunye nokumelana ne-mar.
Iinkqubo Ezinyangekayo Ngemisebe: Zisetyenziswa njengesinyibilikisi esisebenzayo kunye nesidibanisayo kwiingubo, ii-inki kunye nezincamathelisi ezinyangekayo ze-UV/EB. Sisithako esibalulekileyo ekuhlanganiseni ii-acrylates ze-urethane.
Ii-Photoresists kunye nee-Photoreactive Polymers: Zisetyenziswa ekuveliseni ii-resin ze-photoresist kwiipleyiti zokuprinta kunye nee-elektroniki (ii-semiconductors, ii-LCD).
Izinto zokuncamathelisa kunye nezitywini:
Iphucula amandla okunamathela kwiindawo ezahlukeneyo, kuquka iintsimbi kunye neeplastiki.
Iphucula uxinano lwe-crosslink, nto leyo ekhokelela ekuchaseni ubushushu okuphezulu, ekuchaseni iikhemikhali, nasekuqineni okudibeneyo kwi-adhesives zesakhiwo kunye ne-pressure-sensitive (PSAs).
Amalaphu kunye neeFiber:
Isetyenziswa njenge-co-monomer kwiiarhente zonyango lwefayibha kunye neengubo zelaphu ukunika ukumelana namanzi, ukumelana nemibimbi, kunye nokuqina.
Ukucubungula Amaphepha:
Ifakwe kwiifomyula zokugquma ukuphucula amandla amanzi nowomileyo, ukumelana namanzi, kunye nokuprintwa lula.
Izicelo ezikhethekileyo:
Ishishini lezinto zokuthambisa: Lisebenza njengesixhobo samakhemikhali sokwenza izinto zokuthambisa kunye nezongezo ze-dispersant.
Izixhobo ze-elektroniki: Zisetyenziswa njengesixhobo sokucoca amanzi emzimbeni xa kulungiselelwa isampuli ye-electron microscopy.
I-Analytical Chemistry: Isebenza njenge-reagent yeekhemikhali kwaye iyinxalenye yezinto ezifakwa emanzini.
Iimpawu eziphambili kunye neenzuzo
Ukusebenza kabini: Iqela le-acrylate lenza i-copolymerization, ngelixa iqela le-hydroxyl livumela ukudityaniswa kunye nokuguqulwa kweekhemikhali.
Ukusebenza Okuphuculweyo: Kunika ukuqina okugqwesileyo, ukumelana neekhemikhali, kunye nokunamathela kwiipolymers zokugqibela.
I-High Reactivity: Ikhawuleza i-copolymerises kunye ne-acrylates, i-methacrylates, i-styrene, i-vinyl acetate, i-acrylonitrile, kunye nokunye.
Ukuguquguquka: Ifanelekile kwiinkqubo ezahlukeneyo ze-polymerization, kubandakanya isisombululo, i-emulsion, kunye ne-suspension polymerization.
Ukusebenza kakuhle: Ibonelela ngophuculo olukhulu kwiimpawu zemveliso nokuba kumanqanaba aphantsi okufakwa (ngesiqhelo yi-2-10%).
Ukuqina Okuphantsi: Isebenza njengesinyibilikisi esisebenzayo kwiinkqubo ezinokunyangwa ngemitha, inceda ekunciphiseni ukuqina kwefomyula ngaphandle kokusebenzisa ii-volatile organic compounds (ii-VOC).
Ukuphatha kunye nokugcina
Ubushushu Bokugcina: Gcina kwindawo epholileyo, enomoya ococekileyo. Ubushushu bokugcina obucetyiswayo buphakathi kwe-2°C kunye ne-25°C (36°F kunye ne-77°F). Kuphephe ukubanda kunye nobushushu obuphezulu.
Inhibitor: Iqulethe i-MEHQ inhibitor yokuthintela i-polymerization ezenzekelayo. I-inhibitor ifuna ukubakho kwe-oksijini ukuze isebenze; ngoko ke, ukugcinwa phantsi kwe-intimal atmosphere (umz., i-nitrogen padding) kubalulekile ukuze kubekho uzinzo ixesha elide.
Isingxobo: Gcina kwizingxobo ezivalwe ngokuqinileyo ezenziwe ngentsimbi engagqwaliyo, intsimbi ene-phenolic resin, okanye i-polyethylene. Khusela ekukhanyeni.
Ubomi beShelufu: Ngokwesiqhelo igcinwa phantsi kweemeko ezicetyiswayo phakathi kweenyanga ezi-6 ukuya kwezi-12 ukususela kumhla wokwenziwa kwayo.
Ukuphatha: Sebenzisa ngokulawula umoya nobunjineli obaneleyo. Kuphephe ukudibana nolusu, amehlo, kunye nempahla. Nxiba izixhobo zokuzikhusela ezifanelekileyo (PPE), kuquka iiglavu ezimelana neekhemikhali, iiglasi zokhuseleko, kunye nempahla yokuzikhusela.