Ether ea Starch ke eng?

Starch ether ke mofuta o fetotsoeng oa starch, e leng k'habohaedreite e nkiloeng limela. Phetoho ena e kenyelletsa lits'ebetso tsa lik'hemik'hale tse fetolang sebopeho sa starch, e leng se fellang ka sehlahisoa se nang le thepa e ntlafalitsoeng kapa e fetotsoeng. Starch ethers e sebelisoa haholo lits'ebetsong tse fapaneng tsa indasteri ka lebaka la litšobotsi tsa eona tse ikhethang. Mefuta e meng e tloaelehileng ea starch ethers e kenyelletsa hydroxyethyl starch (HES), hydroxypropyl starch (HPS), le carboxymethyl starch (CMS). Tsena ke lintlha tsa bohlokoa tsa starch ethers:

1. Phetoho ea Lik'hemik'hale:

• Hydroxyethyl Starch (HES): Ho HES, lihlopha tsa hydroxyethyl li hlahisoa molek'huleng ea starch. Phetoho ena e ntlafatsa ho qhibiliha ha eona metsing 'me e etsa hore e lokele ho sebelisoa meriana, e le katoloso ea bophahamo ba plasma, le lits'ebetsong tse ling.
• Hydroxypropyl Starch (HPS): HPS e hlahisoa ka ho hlahisa lihlopha tsa hydroxypropyl sebopehong sa starch. Phetoho ena e ntlafatsa thepa e kang ho qhibiliha ha metsi le bokhoni ba ho etsa filimi, e leng se etsang hore e be molemo liindastering tse kang lijo, masela le kaho.
• Setache sa Carboxymethyl (CMS): CMS e thehoa ka ho hlahisa lihlopha tsa carboxymethyl ho limolek'hule tsa starch. Phetoho ena e fana ka litšobotsi tse kang ho ntlafatsa ho boloka metsi, ho teteana le botsitso, e leng se etsang hore e be ea bohlokoa lits'ebetsong tse kang likhomaretsi, masela le meriana.

2. Ho qhibiliha ha metsi:

• Hangata di-starch ether di bontsha ho ntlafala ha ho qhibilihisoa ha metsi ha ho bapiswa le starch ya tlhaho. Ho qhibilihisoa hona ho hoholo ho molemo mefuteng moo ho hlokahalang ho qhibilihisoa ka potlako kapa ho hasana ka metsing.

3. Litšobotsi tsa ho teteana le ho teteana:

• Li-starch ether li sebetsa e le li-thickeners tse atlehang mefuteng e fapaneng. Li tlatsetsa keketsehong ea viscosity, e leng ea bohlokoa lits'ebetsong tse kang likhomaretsi, liphahlo le lihlahisoa tsa lijo.

4. Bokhoni ba ho Etsa Filimi:

• Li-ether tse ling tsa starch, haholo-holo hydroxypropyl starch, li bontša thepa ea ho etsa filimi. Sena se etsa hore li lokele lits'ebetso moo ho lakatsehang ho etsoa filimi e tšesaane, e tenyetsehang, joalo ka indastering ea lijo le ea meriana.

5. Litšobotsi tsa ho Tsitsisa le ho Tlama:

• Hangata li-starch ether li sebelisoa e le li-stabilizer le li-binder ka mefuta e fapaneng ea metsoako. Li thusa ho ntlafatsa botsitso ba li-emulsion le ho kenya letsoho ho kopaneng ha lihlahisoa tse kang matlapa a meriana.

6. Likopo tsa ho khomarela:

• Li-ether tsa starch li sebelisoa likhomaretsing, indastering ea lijo (mohlala, libakeng tse nkeloang sebaka ke gum arabic) le lits'ebetsong tse seng tsa lijo (mohlala, likhomaretsing tsa pampiri le tsa liphutheloana).

7. Boholo ba Lesela:

• Indastering ea masela, li-starch ether li sebelisoa ho etsa boholo ba likhoele ho ntlafatsa matla le boreledi ba likhoele nakong ea ho loha.

8. Ditshebediso tsa Meriana:

• Li-ether tse itseng tsa starch li sebelisoa mefuteng ea meriana. Mohlala, hydroxyethyl starch e sebelisoa e le expander ea plasma volume.

9. Kaho le Thepa ea Kaho:

• Li-starch ether, haholo-holo hydroxypropyl starch le carboxymethyl starch, li sebelisoa indastering ea kaho, haholo-holo mefuteng ea seretse se kopantsoeng ka motsoako o omileng. Li tlatsetsa ntlafatsong ea ho khomarela, ho sebetsa habonolo le ho boloka metsi.

10. Indasteri ea Lijo:

11. Ho bola ha lintho tse phelang:

12. Lintho Tse ka Amehang ka Tikoloho:

Ho bohlokoa ho hlokomela hore thepa le lits'ebetso tse ikhethileng tsa li-starch ether li ka fapana ho latela mofuta oa phetoho le ts'ebeliso e reriloeng. Bahlahisi ba fana ka litlhaloso tse qaqileng tsa tekheniki bakeng sa mofuta o mong le o mong oa starch ether ho tataisa baetsi ba li-formula ho khetha mofuta o loketseng ka ho fetisisa bakeng sa lits'ebetso tsa bona tse ikhethileng.