Enziwa kanjani ama-cellulose esters?

I-Cellulose esters ikilasi lezinto zokwakha lapho i-cellulose iphendulwa nge-asidi noma utshwala. Umkhiqizo owumphumela uyimpahla ekwazi ukumelana namanzi, ukushisa, namakhemikhali. I-Cellulose esters isetshenziswa ezinhlobonhlobo zezinhlelo zokusebenza, kufaka phakathi izinto zokunamathisela, izinto zokunamathisela, namapulasitiki.

Ama-cellulose ester ngokuvamile enziwa ngokuphendula i-cellulose nge-asidi noma utshwala. Ukusabela ngokuvamile kwenziwa phambi kwe-catalyst, njenge-sulfuric acid, namazinga okushisa aphezulu. Ukusabela kukhiqiza izinhlobonhlobo zama-ester ahlukene, kuye ngohlobo lwe-asidi noma utshwala obusetshenzisiwe.

I-cellulose esters evame kakhulu i-cellulose acetate, i-cellulose propionate, ne-cellulose butyrate. I-Cellulose acetate yakheka lapho i-cellulose isabela nge-acetic acid. I-Cellulose propionate yakheka lapho i-cellulose isabela nge-propionic acid. I-Cellulose butyrate yakheka lapho i-cellulose isabela nge-butyric acid.

Ama-cellulose esters nawo angakhiqizwa ngokuphendula i-cellulose ngotshwala. Utshwala obuvame kakhulu obusetshenziselwa le njongo yi-methanol, i-ethanol, ne-isopropanol. Ukusabela kukhiqiza izinhlobonhlobo zama-ester ahlukene, kuye ngohlobo lotshwala olusetshenzisiwe.

Ama-cellulose esters nawo angakhiqizwa ngokuphendula i-cellulose nge-esterifying agent, njenge-glycerol noma i-ethylene glycol. Lokhu kusabela kukhiqiza izinhlobonhlobo zama-ester ahlukene, kuye ngohlobo lwe-esterifying agent esetshenzisiwe.

Ama-cellulose esters nawo angakhiqizwa ngokuphendula i-cellulose nge-ejenti ye-halogenating, njenge-chlorine noma i-bromine. Lokhu kusabela kukhiqiza izinhlobonhlobo zama-ester ahlukene, kuye ngohlobo lwe-ejenti ye-halogenating esetshenzisiwe.

Ama-cellulose esters nawo angakhiqizwa ngokuphendula i-cellulose nge-oxidizing agent, njenge-hydrogen peroxide. Lokhu kusabela kukhiqiza izinhlobonhlobo zama-ester ahlukene, kuye ngohlobo lwe-oxidizing agent esetshenzisiwe.

Ama-cellulose esters nawo angakhiqizwa ngokuphendula i-cellulose nge-aminating agent, njenge-ammonia noma i-amine. Lokhu kusabela kukhiqiza izinhlobonhlobo zama-ester ahlukene, kuye ngohlobo lwe-aminating esetshenziswayo.

Ama-cellulose esters nawo angakhiqizwa ngokuphendula i-cellulose nge-ejenti yokunciphisa, njenge-sodium borohydride noma i-lithium aluminium hydride. Lokhu kusabela kukhiqiza izinhlobonhlobo zama-ester ahlukene, kuye ngohlobo lwe-ejenti yokunciphisa esetshenzisiwe.

I-cellulose esters ingaphinda ikhiqizwe ngokuphendula i-cellulose nge-ejenti yokuxhumanisa, njenge-dialdehyde noma i-disocyanate. Lokhu kusabela kukhiqiza izinhlobonhlobo zama-ester ahlukene, kuye ngohlobo lwe-ejenti yokuxhumanisa esetshenzisiwe.

Ama-cellulose esters nawo angakhiqizwa ngokuphendula i-cellulose nge-agent e-polymerizing, njenge-vinyl monomer noma i-polyester. Lokhu kusabela kukhiqiza izinhlobonhlobo zama-ester ahlukene, kuye ngohlobo lwe-ejenti ye-polymerizing esetshenzisiwe.

Ama-cellulose esters nawo angakhiqizwa ngokuphendula i-cellulose nge-ejenti yokwelapha, njenge-epoxy noma i-polyurethane. Lokhu kusabela kukhiqiza izinhlobonhlobo zama-ester ahlukene, kuye ngohlobo lwe-ejenti yokwelapha esetshenzisiwe.

Ama-cellulose esters nawo angakhiqizwa ngokuphendula i-cellulose nge-ejenti ye-plasticizing, njenge-phthalate noma i-polyethylene glycol. Lokhu kusabela kukhiqiza izinhlobonhlobo zama-ester ahlukene, kuye ngohlobo lwe-ejenti yokwenza ipulasitiki esetshenzisiwe.

I-cellulose esters nayo ingakhiqizwa ngokuphendula i-cellulose nge-surfactant, njenge-nonionic noma i-anionic surfactant. Lokhu kusabela kukhiqiza izinhlobonhlobo zama-ester ahlukene, kuye ngohlobo lwe-surfactant esetshenzisiwe.

I-cellulose esters ingaphinda ikhiqizwe ngokuphendula i-cellulose nge-flame retardant, njenge-halogenated hydrocarbon noma inhlanganisela ye-phosphorous. Lokhu kusabela kukhiqiza izinhlobonhlobo zama-ester ahlukene, kuye ngohlobo lwe-flame retardant esetshenzisiwe.

Ekuphetheni, i-cellulose esters ikhiqizwa ngokusabela kwe-cellulose nge-asidi, i-alcohol, i-esterifying agent, i-halogenating agent, i-oxidizing agent, i-aminating agent, i-ejenti yokunciphisa, i-agent exhumanisa, i-polymerizing agent, i-ejenti yokwelapha. , i-agent eyenza ipulasitiki, i-surfactant, noma i-flame retardant. Uhlobo lwe-ester olukhiqizwayo luncike ohlotsheni lwe-reactant esetshenzisiwe. I-Cellulose esters isetshenziswa ezinhlobonhlobo zezinhlelo zokusebenza, kufaka phakathi izinto zokunamathisela, izinto zokunamathisela, namapulasitiki.