Iindidi ze-cellulose ether
I-cellulose ethers liqela elihlukeneyo lee-derivatives ezifunyenwe ngokuguqulwa kweekhemikhali ze-cellulose yendalo, eyona nto iphambili kwiindonga zeeseli zesityalo. Uhlobo oluthile lwe-cellulose ether luchongwa bubume bokuguqulwa kweekhemikhali ezifakwe kwi-cellulose backbone. Nazi ezinye iindidi eziqhelekileyo ze-cellulose ethers, nganye ineempawu zayo ezizodwa kunye nokusetyenziswa:
- I-Methyl Cellulose (MC):
- Ukuguqulwa kweMichiza: Ukuqaliswa kwamaqela e-methyl kumqolo we-cellulose.
- Iipropati kunye nezicelo:
- Ukunyibilika emanzini.
- Isetyenziswe kwizinto zokwakha (udaka, i-adhesives), iimveliso zokutya, kunye namayeza (i-tablet coatings).
- I-Hydroxyethyl Cellulose (HEC):
- Ukuguqulwa kweMichiza: Ukuqaliswa kwamaqela e-hydroxyethyl kumqolo we-cellulose.
- Iipropati kunye nezicelo:
- Ukunyibilika kakhulu emanzini.
- Isetyenziswa ngokuqhelekileyo kwizinto zokuthambisa, iimveliso zokhathalelo lomntu, iipeyinti, kunye namayeza.
- I-Hydroxypropyl Methyl Cellulose (HPMC):
- Ukuguqulwa kweMichiza: Ukuqaliswa kwe-hydroxypropyl kunye namaqela e-methyl kumqolo we-cellulose.
- Iipropati kunye nezicelo:
- Ukunyibilika emanzini.
- Isetyenziswa kakhulu kwizinto zokwakha (udaka, iingubo), amayeza, kunye neemveliso zokutya.
- I-Carboxymethyl Cellulose (CMC):
- Ukuguqulwa kweMichiza: Ukuqaliswa kwamaqela e-carboxymethyl kwi-cellulose backbone.
- Iipropati kunye nezicelo:
- Ukunyibilika emanzini.
- Isetyenziswa njenge-thickener kunye ne-stabilizer kwiimveliso zokutya, amayeza, amalaphu, kunye nolwelo lokomba.
- ISelulosi yeHydroxypropyl (HPC):
- Ukuguqulwa kwamachiza: Ukuqaliswa kwamaqela e-hydroxypropyl kumqolo we-cellulose.
- Iipropati kunye nezicelo:
- Ukunyibilika emanzini.
- Ngokuqhelekileyo isetyenziswa kumayeza njenge-binder, i-agent eyenza ifilimu, kunye ne-thickener.
- I-Ethyl Cellulose (EC):
- Ukuguqulwa kweMichiza: Ukuqaliswa kwamaqela e-ethyl kwi-cellulose backbone.
- Iipropati kunye nezicelo:
- Amanzi anganyibilikiyo.
- Isetyenziswa kwiingubo zokwaleka, iifilimu, kunye nokulawulwa kokukhutshwa kwamayeza.
- I-Hydroxyethyl Methyl Cellulose (HEMC):
- Ukuguqulwa kwamachiza: Ukuqaliswa kwe-hydroxyethyl kunye namaqela e-methyl kumqolo we-cellulose.
- Iipropati kunye nezicelo:
- Ukunyibilika emanzini.
- Ngokuqhelekileyo zisetyenziswa kwizinto zokwakha (udaka, i-grouts), iipeyinti, kunye nezinto zokuthambisa.
Ezi ntlobo ze-cellulose ethers zikhethwa ngokusekelwe kwiipropati zabo ezithile kunye nokusebenza okufunekayo kwizicelo ezahlukeneyo. Ukuguqulwa kweekhemikhali kumisela ukunyibilika, i-viscosity, kunye nezinye iimpawu zokusebenza kwe-ether yeselulosi nganye, izenza izongezo eziguquguqukayo kumashishini afana nokwakha, amayeza, ukutya, izithambiso, kunye nokunye.
Ixesha lokuposa: Jan-01-2024