Focus on Cellulose ethers

Yintoni umahluko phakathi kwe-cellulose ether kunye ne-cellulose?

Yintoni umahluko phakathi kwe-cellulose ether kunye ne-cellulose?

I-cellulose kunye ne-cellulose ether zombini ziphuma kwi-cellulose, i-polymer yendalo efumaneka kwiindonga zeeseli zezityalo.Nangona kunjalo, banomahluko ohlukileyo kwizakhiwo zabo zeekhemikhali kunye neempawu:

  1. Ubume beMichiza: I-Cellulose yi-polysaccharide ehambelanayo equka ukuphindaphinda iiyunithi ze-glucose ezidityaniswe kunye ne-β (1 → 4) iibhondi ze-glycosidic.Yipolymer yekhonkco elithe tye kunye neqondo eliphezulu le-crystallinity.
  2. I-Hydrophilicity: I-Cellulose ngokwemvelo i-hydrophilic, oku kuthetha ukuba inobudlelwane obuqinileyo namanzi kwaye inokufunxa inani elikhulu lokufuma.Le propati ichaphazela ukuziphatha kwayo kwizicelo ezahlukeneyo, kubandakanywa ukusebenzisana kwayo kunye neenkqubo ezisekelwe emanzini ezifana nemixube yesamente.
  3. Ukunyibilika: I-cellulose ecocekileyo ayinyibiliki emanzini kwaye uninzi lwezinyibilikisi zendalo ngenxa yesakhiwo sayo sekristale kakhulu kunye ne-hydrogen ebanzi yokudibanisa phakathi kwamakhonkco e-polymer.
  4. I-Derivatization: I-ether ye-Cellulose luhlobo olulungisiweyo lweselulosi efunyenwe nge-chemical derivatization.Le nkqubo ibandakanya ukwazisa amaqela asebenzayo, afana ne-hydroxyethyl, i-hydroxypropyl, i-methyl, okanye amaqela e-carboxymethyl, kwi-cellulose backbone.Olu tshintsho luguqula iipropathi zeselulosi, kubandakanywa ukunyibilika kwayo, ukuziphatha kwerheological, kunye nokusebenzisana nezinye izinto.
  5. Ukunyibilika emanzini: I-cellulose ethers iqhele ukunyibilika okanye ihlakazwe emanzini, ngokuxhomekeke kuhlobo oluthile kunye neqondo lokufakela endaweni.Oku kunyibilika kubenza babe luncedo kakhulu kumashishini ahlukeneyo, kubandakanya amayeza, ukutya, izinto zokuthambisa, kunye nokwakha.
  6. Isicelo: I-Cellulose ethers ifumana ukusetyenziswa ngokubanzi njengee-agent ezityebisayo, izizinzi, izibophelelo, kunye nee-agent ezenza ifilimu kwiimveliso ezahlukeneyo kunye neenkqubo.Ekwakhiweni, zisetyenziswa ngokuqhelekileyo njengezongezo kwizinto ezisekelwe kwisamente ukuphucula ukusebenza, ukugcinwa kwamanzi, ukunamathela, kunye nezinye iipropati.

Isishwankathelo, ngelixa i-cellulose kunye ne-ether ye-cellulose yabelana ngemvelaphi efanayo, i-ether ye-cellulose iguqulwa ngokwemichiza ukwazisa iimpawu ezithile ezenza ukuba zinyibilike okanye zichitheke emanzini kwaye zilungele izicelo ezahlukeneyo apho ukulawula ukuziphatha kwe-rheological kunye nokusebenzisana nezinye izinto ezifunwayo.


Ixesha lokuposa: Mar-18-2024
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