Iyini i-hydroxyethyl methyl cellulose (HEMC)?

Iyini i-hydroxyethyl methyl cellulose (HEMC)?

 IHydroxyethyl methylcellulose(I-HEMCyaziwa nangokuthi i-methylhydroxyethyl cellulose (I-MHEC). Kuyizinhlayiyana ezimhlophe, ezimpunga ezimhlophe, noma eziphuzi ezimhlophe. I-non-ionic cellulose ether etholwe ngokungeza i-ethylene oxide ku-methyl cellulose. Yenziwe ngama-polymers avuselelekayo emvelo afana ne-pulp yokhuni noma ukotini, futhi i-HEMC ingasetshenziswa njenge-ejenti yokugcina amanzi esebenza kahle kakhulu, i-adhesive kanye ne-ejenti yokwakha ifilimu, i-stabilizer, njll. Isetshenziswa kabanzi ekusetshenzisweni kwezimboni ezihlukahlukene, njengamafutha. ukubhoboza, ukwakhiwa kanye nokwakhiwa, upende kanye nezingubo zokugqoka, imithi, njll.I-HEMCingashintshwa ngokuya ngezidingo zekhasimende, futhi ngemuva kokuguqulwa, isenokumelana okuhle nokuhlehla kanye nokucutshungulwa okuhle. Ufuna ukusebenzisaI-HEMCngezinhloso zezimboni? Sicela uthinte umphakeli othembekile wei-hydroxyethyl methyl celluloseukuthola ukuthengiselana okuhle.

Izici ze-HEMC

I-HEMCinemisebenzi eyahlukene. Zihlanganisa:

1. Ukubukeka

 I-HEMCkungaba mhlophe, phuzi ngokukhanyayo, kube mhlophe okuphuzi, noma kubemhlophe okumpunga.

2. Ukuncibilika

I-HEMCiyancibilika emanzini (ebanda noma eshisayo). NakubaI-HEMCayincibiliki ezincibilikisini eziningi eziphilayo, iyancibilika kuzincibilikisi zemvelo kanambambili nasezinhlelweni zamanzi ezincibilikayo zemvelo.

Ukugxila kwayo okuphezulu kuncike ku-viscosity, futhi ukuncibilika kwayo kuyahlukahluka nge-viscosity. Lapho i-viscosity iphansi, i-solubility enkulu, futhi ngokuphambene nalokho.

3. Ukuzinza kwe-pH

 I-HEMCuzinzile ebangeni le-3.0-11.0 futhi i-viscosity yayo cishe ayithinteki, kodwa ukweqa lolu hlu kuzonciphisa i-viscosity yayo.

4. I-Metabolism

 I-HEMCinto engasebenzi esetshenziswa kakhulu ekudleni nasemthini ngenxa yokungakwazi kwayo ukungena kumetabolism.

5. Umsebenzi ongaphezulu

Ngenxa yomsebenzi wayo osebenzayo ezixazululweni ezinamanzi, ingasetshenziswa njenge-dispersant, isivikeli, kanye ne-emulsifier.

6. Ukumelana nesikhunta

Ekugcinweni kwesikhathi eside,I-HEMCinokuqina okuhle kwe-viscosity, ngakho-ke inokumelana okuhle kwesikhunta.

Ikhono layo lokulwa nesikhunta liphakeme kunele-hydroxyethyl cellulose.

7. Ukugcinwa kwamanzi

 I-HEMCiba i-ejenti ephumelelayo yokugcina amanzi ngenxa ye-viscosity yayo ephezulu ezixazululweni ezinamanzi.

Umthamo wayo wokugcina amanzi mkhulu kunawe-methyl cellulose.

8. Okuqukethwe komlotha

Inqubo yokulungiselelaI-HEMCisebenzisa ukugeza ngamanzi ashisayo, okuholela ekubeni nomlotha ophansi kakhulu.

9. I-adhesive conductive eshisayo

Lapho i-I-HEMCIsixazululo sishisiswe ekushiseni okuthile, ukucaca kwayo kuncipha, kwakha i-sediment kanye nejeli, kodwa uma selehlile, izobuyela esimweni sokuqala sesixazululo.

Ukusetshenziswa okuvamile kweI-HEMC

 I-Hydroxyethyl methylcelluloseingasetshenziswa njenge:

Ø I-AdhesiveØ I-colloid evikelayoØ I-ThickenerØ I-ejenti eyenza ifilimu i-Emulsifier LubricantØ I-ejenti yokumiswa

Izicelo zezimboni zeI-HEMC

 I-HEMCisetshenziswa kakhulu kulezi zimboni ezilandelayo:

·Aggregation·Ceramics·Cosmetics·Construction·Food and Beverage·Imithi · Upende nama-Coatings · Ukumba uyinki namafutha

Njengoba kushiwo ngaphambili,i-hydroxyethyl methylcellulose (I-HEMC) iphuma ku-methylcellulose. Kuyi-ether engeyona ionic cellulose eyenziwe ngezinto ezingavuthiwe zikakotini ezinobumsulwa obuphakeme.I-HEMCUkugcina amanzi kanye namandla okujiya akwenza afanelekele opende be-latex abasekelwe emanzini, oyinki kanye nokumba i-petroleum, izinto zokwakha, njll. Ngenxa yokusetshenziswa kwayo kabanzi ezinhlelweni ezahlukene, ukutholaI-HEMCkubahlinzeki abaziwayo be-hydroxyethyl methyl cellulose bangaqinisekisa ukuthi uthola imikhiqizo elungele ukusetshenziswa komuntu siqu noma yezimboni.