Ingabe i-ethyl cellulose iyisibopho?

I-Ethylcellulose iyingcina esetshenziswa kakhulu ezimbonini ezahlukahlukene, ikakhulukazi kwezemithi, ukudla, okokugqoka kanye nezimonyo.

Isingeniso se-ethyl cellulose

I-Ethylcellulose iphuma ku-cellulose, i-polymer yemvelo etholakala ezindongeni zamaseli ezitshalo. Ikhiqizwa ukusabela kwe-ethylation ye-cellulose nge-ethyl chloride noma i-ethylene oxide. Lokhu kuguqulwa kunikeza impahla eyingqayizivele, okwenza ifaneleke ukusetshenziswa okuhlukahlukene, ikakhulukazi njenge-adhesive ezimbonini ezahlukene.

Izimpawu ze-ethylcellulose

Isakhiwo Sekhemikhali: I-Ethylcellulose iqukethe amayunithi aphindaphindayo e-anhydroglucose axhunywe ngamabhondi e-β(1→4) e-glycosidic. I-Ethylation ye-cellulose ithatha indawo yamaqembu e-hydroxyl (-OH) ngamaqembu e-ethoxy (-OCH2CH3).

Ukunyibilika: I-Ethylcellulose ayincibiliki emanzini, kodwa incibilika kuzincibilikisi zemvelo ezifana ne-ethanol, i-acetone, i-toluene, ne-chloroform. Le ndawo iyenza ifaneleke izicelo ezidinga ukumelana namanzi.

Ikhono lokwenza ifilimu: I-Ethyl cellulose ingakha ifilimu eguquguqukayo nesobala ngemva kokuncibilika ku-solvent efanele yemvelo. Lawa mafilimu anamandla amahle emishini kanye nezakhiwo zokuthiya.

I-Thermoplasticity: I-Ethylcellulose ikhombisa ukuziphatha kwe-thermoplastic, okwenza kube lula ukucutshungulwa kusetshenziswa amasu afana ne-extrusion, ukubumba umjovo, kanye nokubumba kokucindezelwa.

Ukuhambisana: I-Ethylcellulose ihambisana nezinhlobonhlobo zamanye ama-polymers, ama-plasticizers nezithasiselo, okwenza ifanelekele ukusetshenziswa ezinhlobonhlobo zokwakheka.

Ukusetshenziswa kwe-ethyl cellulose njenge-adhesive

1. Imboni yezemithi

Ekwakhekeni kwemithi, i-ethylcellulose isebenza njengesibopho ekukhiqizeni amaphilisi. Isiza ukuhlanganisa isithako sekhemisi esisebenzayo (i-API) nezinto ezisizayo ndawonye, ​​iqinisekisa ubuqotho bethebhulethi nokufana. Ngaphezu kwalokho, i-ethylcellulose iphinde isetshenziswe ekwakhiweni kokukhishwa okulawulwayo okudinga ukukhishwa kwezidakamizwa okuqhubekayo.

2. Imboni yokudla

I-Ethylcellulose isetshenziswa njenge-binder, thickener, kanye ne-stabilizer ekudleni. Isetshenziselwa ukugqoka izithelo, imifino kanye ne-confectionery ukuthuthukisa ukubukeka kwabo nokuphila kweshalofu. I-Ethylcellulose coating inikeza isithiyo sokuzivikela ngokumelene nomswakama, amagesi kanye nokungcola.

3. Izingubo zokugqoka noyinki

Embonini yokumboza noyinki, i-ethylcellulose isetshenziswa njengesibopho kumapende, amavanisha, ama-varnish, kanye nokwakheka kukayinki wokunyathelisa. Inikeza lezi zembatho ukunamathela, ukuguquguquka nokuphikiswa kwamanzi, ngaleyo ndlela kuthuthukise ukusebenza kwazo nokuqina.

4. Izimonyo

I-Ethylcellulose isetshenziswa njenge-thickener kanye ne-stabilizer kuzimonyo ezifana nama-creams, ama-lotion kanye nemikhiqizo yokunakekelwa kwezinwele. Kuyasiza ukufeza ukuthungwa okufunayo, ukungaguquguquki kanye ne-viscosity ekwakhiweni kwezimonyo.

5. Izicelo zezimboni

Ekusetshenzisweni kwezimboni, i-ethylcellulose isetshenziswa njengesibopho ekukhiqizeni izinto ze-ceramic, ama-abrasives kanye nezinhlanganisela. Isiza ukwakha imizimba eluhlaza futhi ilawula izakhiwo ze-rheological zama-pastes nama-slurries.

Ukwakhiwa kwe-ethylcellulose

Ukuhlanganiswa kwe-ethylcellulose kuhilela ukusabela kwe-cellulose nge-ethylating agent ngaphansi kwezimo ezilawulwayo. Ukusabela kwe-ethylation ngokuvamile kwenziwa phambi kwe-catalyst efana ne-asidi noma isisekelo sokukhuthaza ukushintshwa kwamaqembu e-hydroxyl ngamaqembu e-ethoxy. I-degree of substitution (DS) imele inombolo emaphakathi yamaqembu e-ethoxy ngeyunithi ngayinye ye-glucose kuchungechunge lwe-polymer futhi ingalawulwa ngokulungisa amapharamitha wokusabela afana nesikhathi sokusabela, izinga lokushisa, kanye nesilinganiso se-molar yama-reactants.

Izinzuzo ze-ethylcellulose njenge-binder

I-Versatility: I-Ethylcellulose ikhombisa ukuguquguquka ngokuya kokuncibilika, ukuhambisana namandla okwenza ifilimu, okuyenza ifanelekele uhla olubanzi lwezinhlelo zokusebenza kuzo zonke izimboni.

Ukumelana Namanzi: I-Ethylcellulose ayincibiliki emanzini, okuyenza ibe ukukhetha okuhle kakhulu ekubunjweni okudinga ukumelana namanzi, okufana nama-coatings, amapende, nemithi ekhishwa okulawulwayo.

I-Thermoplasticity: Ukuziphatha kwe-thermoplastic kwe-ethylcellulose kuvumela ukucutshungulwa kalula kusetshenziswa amasu endabuko e-thermoplastic, okuvumela izinqubo zokukhiqiza ezingabizi kakhulu.

I-Biocompatibility: I-Ethylcellulose ngokuvamile ibonwa njengephephile (i-GRAS) yizinhlangano ezilawulayo ukuze isetshenziswe ekudleni nasezinhlelweni zemithi, iqinisekisa ukuhambisana kwayo kwezinto eziphilayo kanye nokuphepha kwabathengi.

Ukukhishwa okulawulwayo: I-Ethylcellulose isetshenziswa kakhulu embonini yezemithi ukwenza amafomu emithamo yokukhishwa okulawulwayo ukuze kuhlinzekwe ukulawula okunembile kwezinga lokukhishwa kwezidakamizwa.

I-Ethylcellulose isebenza njengesibophezelo esisebenza ngezinto eziningi esinezinhlobonhlobo zokusetshenziswa kwezemithi, ukudla, okokugqoka, izimonyo nezimboni. Izakhiwo zayo eziyingqayizivele, ezihlanganisa ukuncibilika, ikhono lokwenza ifilimu nokuhambisana, ziyenza ibe isithako esibalulekile ekwenziweni okuhlukahlukene. I-synthesis ye-ethylcellulose ifinyelelwa nge-cellulose ethylating ngaphansi kwezimo ezilawulwayo, okuholela ezintweni ezinezici ezihambisanayo ezifanele izinhlelo zokusebenza ezithile. Ngokumelana kwayo namanzi, i-thermoplasticity nokukhululwa okulawulwayo, i-ethylcellulose iyaqhubeka nokubamba iqhaza elibalulekile ekuthuthukiseni ukusebenza nokusebenza kwemikhiqizo kuzo zonke izimboni eziningi.