Izakhiwo ze-Hydroxyyethyl cellulose kanye nezinyathelo zokuphepha

IHydroxYethyl Cellulose (I-HEC) i-White noma ikhambi eliphuzi, eliphuzi, elingenasici I-Selloluc Soluble Cellulose Afers. Ngaphezu kokuqina, ukumisa, ukubopha, ukugcwala, ukwakha amafilimu, ukusabalalisa, ukugcinwa kwamanzi kanye nokuhlinzeka ngokuvikela ama-colloids, inezakhiwo ezilandelayo:

1. I-HEC incane emanzini ashisayo noma abandayo, futhi ayihlanganisi ekushiseni okuphezulu noma ukubilisa, ukuze ibe nohlobo olunhlobonhlobo lwe-soubity kanye ne-viscosity, ne-gelation engeyona eyeshisayo;

2

I-3. Umthamo wokugcina amanzi uphakeme kabili njenge-methyl cellulose, futhi inomthethonqubo ongcono wokugeleza.

4. Uma uqhathanisa ne-methyl cellulose ye-methyls ne-hydroxypropyll methyl cellulose, amandla asabalalisayo ka-HEC yimbi kakhulu, kepha i-colloid evikelayo inekhono eliqine kakhulu. Ngoba i-HEC inezindawo ezinhle zokuqina, ukumisa, ukusabalalisa, ukubopha, ukubopha amafilimu, ukuvikela umswakama nokunikeza umswakama nokudla, izindwangu, iphepha kanye ne-polymer polymerization kanye nezinye izinkambu.

Izinyathelo zokuzivikela:

Njengoba i-hydroxyethylyl ephethwe ingaphezulu kwe-hydroxyethyl i-powder noma i-cellulose iqinile, kulula ukuyiphatha futhi ichithe emanzini inqobo nje uma izindaba ezilandelayo ziphawulwa.

1. Ngaphambi nangemva kokungeza i-hydroxyethyl cellulose, kufanele ivuswe ngokuqhubekayo kuze kube yilapho isixazululo sisobala futhi sicacile.

2. Kufanele ibonakale emgqonyeni wokuxuba kancane, futhi ungangezi ngokuqondile i-hydroxyethyl cellulose eyenziwe izigaxa namabhola emgqonyeni wokuxuba.

3. Izinga lokushisa lamanzi nenani le-PH lamanzi linobudlelwano obusobala nokuchithwa kwe-hydroxyethyllsose, ngakho-ke kufanele kukhokhwe kuwo.

4. Ungalokothi ungeze into ethile ye-alkali ngayinye engxube ngaphambi kwe-hydroxyethyl cellulose powder ifudunyezwa ngamanzi. Ukuphakamisa Inani le-PH ngemuva kokufudumala kuyasiza ekuqothulweni.

5. Ngokusemandleni akho, engeza ama-antifungal agents ngokushesha ngangokunokwenzeka.

6. Lapho usebenzisa i-High-Viscoxyethyl cellulose, ukugcwaliswa kotshwala bamama akufanele kube ngaphezulu kuka-2,5-3%, ngaphandle kwalokho utshwala buzoba nzima ukuphatha. I-hydroxyyethylls ephathekayo ephathisiwe ngokuvamile ayikho lula ukwakha ama-limps noma ama-sphere, futhi ngeke idale ama-colloids we-infolluble spherical ngemuva kokungeza amanzi.