2-hydroxyethyl methacrylate(HEMA) o se monomer polymerization organic e faia i le tali atu o le ethylene oxide (EO) ma le methacrylic acid (MMA), o loʻo iai vaega e lua i totonu o le mole. Hydroxyethyl methacrylate o se ituaiga o vai e leai ni lanu, manino, ma faigofie ona tafe. Solu i totonu o solu masani masani. Faafefiloi ma le vai.
| MEA | TULAGA FAAVAE |
| CAS | 868-77-9 |
| Isi igoa | HEMA |
| Fa'aaliga | Suavai e leai ni lanu ma manino |
| Mama | ≥97.0% |
| A'asa fua(As AA) | ≤0.30% |
| Vai | ≤0.30% |
| Chroma | ≤30 |
| Taofi(PPM) | 200±40 |
Fa'aaogaina o le HEMA
1. Faʻaaogaina tele mo le faʻaleleia o resini ma paʻu. Copolymerization ma isi monomers acrylic e mafai ona maua resins acrylic ma vaega hydroxyl malosi i filifili itu, lea e mafai ona oo i le esterification ma crosslinking tali, synthesize resins insoluble, faaleleia adhesion, ma e mafai ona faaaoga e avea ma sui togafitiga fiber. E tali atu i le melamine formaldehyde (poʻo le urea formaldehyde) resini, epoxy resin, ma isi mea e gaosia ai mea e lua-vaega faʻapipiʻi. O le fa'aopoopoina i le vali ta'avale maualuga e mafai ona fa'atumauina lona fa'a iila mo se taimi umi. E mafai foi ona faʻaaogaina e fai ma faʻapipiʻi mo ie gaosia ma monomers polymer faafomaʻi.
2. O le HEMA e fa'aaogaina e gaosia ai resini mo fa'alavalava, ta'avale ta'avale pito i luga ma primers, fa'apea fo'i mea fa'akomepiuta photopolymer, laupapa lomitusi, vaitusi, gel (matamata fa'afeso'ota'i) ma mea fa'apipi'i 'apa, fa'aeletonika fa'aeletonika (TEM) ma fa'apipi'i masini fa'apitoa (LM). reagents, aemaise lava mo faʻamama faʻataʻitaʻiga o "nofoaga maaleale antigen nofoaga". E pei o le vai pa'epa'e, pipi'i, manifinifi nai lo le vai, ma faigofie ona ati nai lo so'o se resini po'o se monomer. Fa'apitoa fa'aoga mo le galue i ponaivi, cartilage, ma faigata ona tu'ia aano o la'au.
3. O loʻo faʻaaogaina le alamanuia palasitika e gaosia ai resini acrylic o loʻo i ai vaega hydroxyl malosi. O loʻo faʻaogaina le alamanuia faʻapipiʻi faʻatasi ma resins epoxy, diisocyanates, melamine formaldehyde resins, ma isi mea e maua ai ni faʻapipiʻi lua-vaega. Ole alamanuia suau'u e fa'aaogaina e fai ma fa'aopoopoga mo le fufuluina ole suau'u fufulu. O le alamanuia faaeletonika o loʻo faʻaaogaina e avea o se vailaʻau faʻafefe mo microscopes eletise. O mea fa'apipi'i e fa'aaogaina ile fale'ie e gaosia ai ie. Fa'aaogaina e fai ma vaila'au fa'afoma'i i kemisi su'esu'e. E le gata i lea, o loʻo faʻaaogaina foi e avea o se vai-soluble embedding agent mo le tuʻufaʻatasia o mea faʻafomaʻi polymer, faʻapipiʻi vevela, ma faʻapipiʻi.
Lumanai oHEMA:
Ua taʻua e le au suʻesuʻe o pisinisi e faapea ona o le lelei atoatoa o le faatinoga, o le hydroxyethyl methacrylate i le taimi nei o loʻo i ai se manaʻoga maualuga mo talosaga, aemaise lava i le tulaga o fomaʻi ma faʻaofuofu maualuga, ma faʻamoemoega manuia. O loʻo i ai pea avanoa atinaʻe i le lumanaʻi maketi o le hydroxyethyl methacrylate. I le itu manaʻoga: Faʻatasi ai ma le televave o le faʻatupulaia o manaʻoga i fanua e pei o paʻu ma faʻapipiʻi, o le faʻaaogaina o le 2-hydroxyethyl methacrylate o loʻo faʻatupulaia pea. Fa'atekinisi,HEMAtekinolosi gaosiga ma polyether gaosiga tekinolosi e mafai ona aʻoaʻoina mai le tasi i le isi i tulaga o le mamanu, meafaigaluega, faagasologa, ma le faagaoioiga. I tulaga o filifili alamanuia: le atinae o oloa maualuga hydroxyethyl methacrylate e mafai ona fesootai i luga o le methacrylic acid i luga ma masini ethylene oxide, fa'apea fo'i ma masini fa'apipi'i vai i lalo. I le taimi lava e tasi, o le hydroxyethyl methacrylate o se mea mataʻutia taua mo pisinisi i luga o le eleele, faʻamautinoaina le tuʻuina atu o monomers autu mo pisinisi i lalo, faʻalauteleina le filifili pisinisi, ma faʻateleina le tau o oloa. Faatasi ai ma le faʻateleina o le manaʻoga maketi, o loʻo faʻaleleia le maketi o le HEMA. . Ina ia mafai ona faʻamalosia lana faʻatau maketi, ua filifili le kamupani e faʻateleina lona gaosiga o meafaigaluega muamua ma faʻamamā atili ai le vai faʻamama otaota e faʻateleina ai lona lava gaosiga gafatia.
Taimi meli: Ian-30-2024