I-Carboxymethyl cellulose (CMC) iyimpahla ye-polymer esebenzayo esetshenziswa kabanzi ekudleni, kwezemithi, kwezimonyo, kuphethiloli, ekwenzeni iphepha, kwezindwangu nakwezinye izimboni. Izinzuzo zayo eziyinhloko zihlanganisa ukuqina, ukuqiniswa, ukumiswa, i-emulsification, ukugcinwa kwamanzi kanye neminye imisebenzi, ngakho-ke isetshenziswa kabanzi emikhakheni eminingi. Kodwa-ke, naphezu kokusebenza kwayo okuhle kakhulu ezinhlelweni eziningi zokusebenza, i-CMC nayo inokungalungi kanye nemikhawulo ethile, engakhawulela ukusetshenziswa kwayo ezikhathini ezithile noma idinge izinyathelo ezithile zokunqoba lobu bubi.
1. Ukuncibilika okulinganiselwe
Ukunyibilika kwe-CMC emanzini kuyisici esibalulekile, kodwa ngaphansi kwezimo ezithile, ukunyibilika kungase kukhawulelwe. Isibonelo, i-CMC inokuncibilika okungekuhle ezindaweni ezinosawoti omningi noma emanzini anobulukhuni obukhulu. Esimweni esinosawoti omningi, ukunyanyiswa kwe-electrostatic phakathi kwamaketanga e-CMC amangqamuzana kuyancishiswa, okuholela ekwandeni kokusebenzelana kwama-intermolecular, okuthinta ukunyibilika kwayo. Lokhu kubonakala ikakhulukazi uma kusetshenziswa emanzini olwandle noma emanzini aqukethe inani elikhulu lamaminerali. Ngaphezu kwalokho, i-CMC incibilika kancane emanzini anezinga lokushisa eliphansi futhi ingase ithathe isikhathi eside ukuncibilika ngokuphelele, okungase kuholele ekunciphiseni ukusebenza kahle ekukhiqizweni kwezimboni.
2. Ukungaqini kahle kwe-viscosity
I-viscosity ye-CMC ingase ithintwe i-pH, izinga lokushisa, namandla e-ionic ngesikhathi sokusetshenziswa. Ngaphansi kwezimo ezine-asidi noma ezine-alkali, i-viscosity ye-CMC ingase yehle kakhulu, ithinte umphumela wayo wokujiya. Lokhu kungase kube nomthelela omubi kwezinye izinhlelo zokusebenza ezidinga i-viscosity ezinzile, njengokucubungula ukudla nokulungiswa kwemithi. Ukwengeza, ngaphansi kwezimo zokushisa eziphezulu, i-viscosity ye-CMC ingase yehle ngokushesha, okuholela ekusebenzeni okulinganiselwe kwezinye izinhlelo zokusebenza ezisezingeni eliphezulu.
3. I-biodegradability engalungile
I-CMC iyiselulosi eshintshiwe enezinga lokuwohloka kancane, ikakhulukazi ezindaweni zemvelo. Ngakho-ke, i-CMC inokuwohloka kwemvelo okuncane futhi ingase ibeke umthwalo othile endaweni ezungezile. Nakuba i-CMC ingcono ekucekeleni phansi kwemvelo kunamanye ama-polymer okwenziwa, inqubo yawo yokuwohloka isathatha isikhathi eside. Kwezinye izinhlelo zokusebenza ezizwelayo endaweni ezungezile, lokhu kungase kube ukucatshangelwa okubalulekile, kubangele abantu ukuthi babheke ezinye izinto ezisetshenziswayo ezihambisana nemvelo.
4. Izinkinga zokuzinza kwamakhemikhali
I-CMC ingase ingazinzi ezindaweni ezithile zamakhemikhali, njenge-asidi eqinile, isisekelo esiqinile noma izimo ze-oxidative. Ukuwohloka noma ukusabela kwamakhemikhali kungenzeka. Lokhu kungazinzi kungase kukhawulele ukusetshenziswa kwayo ezindaweni ezithile zamakhemikhali. Endaweni ene-oxidizing kakhulu, i-CMC ingase ilahlekelwe yi-oxidative, ngaleyo ndlela ilahlekelwe ukusebenza kwayo. Ngaphezu kwalokho, kwezinye izixazululo eziqukethe ama-ion ensimbi, i-CMC ingaxhumanisa nama-ion ensimbi, okuthinta ukunyibilika nokuzinza kwayo.
5. Inani eliphakeme
Yize i-CMC iyinto esebenza kahle kakhulu, izindleko zayo zokukhiqiza ziphezulu uma kuqhathaniswa, ikakhulukazi imikhiqizo ye-CMC enobumsulwa obuphezulu noma imisebenzi ethile. Ngakho-ke, kwezinye izinhlelo zokusebenza ezizwela izindleko, ukusetshenziswa kwe-CMC kungase kungabi ukonga. Lokhu kungase kwenze izinkampani zicabangele ezinye izindlela ezingabizi kakhulu lapho zikhetha izinto eziwugqinsi noma iziqinisi, nakuba lezi zindlela zingase zingabi zinhle njenge-CMC ekusebenzeni.
6. Kungase kube nemikhiqizo ekhiqizwayo ohlelweni lokukhiqiza
Inqubo yokukhiqiza ye-CMC ihilela ukuguqulwa kwamakhemikhali kwe-cellulose, okungase kukhiqize eminye imikhiqizo, njenge-sodium chloride, i-sodium carboxylic acid, njll. Le mikhiqizo ingase ithinte ukusebenza kwe-CMC noma yethule ukungcola okungathandeki ngaphansi kwezimo ezithile. Ngaphezu kwalokho, ama-reagents amakhemikhali asetshenziswa enqubweni yokukhiqiza angase abe nomthelela omubi emvelweni uma engaphathwa kahle. Ngakho-ke, nakuba i-CMC ngokwayo inezakhiwo eziningi ezinhle kakhulu, imithelela yezemvelo nempilo yenqubo yokukhiqiza nayo iyisici esidinga ukucatshangelwa.
7. I-biocompatibility elinganiselwe
Nakuba i-CMC isetshenziswa kabanzi kwezokwelapha nasezimonyoni futhi inokuvumelana okuhle kwe-biocompatibility, ukuhambisana kwayo kwezinto eziphilayo kusengase kunganele kwezinye izinhlelo zokusebenza. Isibonelo, kwezinye izimo, i-CMC ingabangela ukucasuka kwesikhumba okuncane noma ukungezwani komzimba, ikakhulukazi uma isetshenziswa ezindaweni ezigxilile kakhulu noma isikhathi eside. Ngaphezu kwalokho, i-metabolism kanye nokuqedwa kwe-CMC emzimbeni kungase kuthathe isikhathi eside, okungenzeka kungabi kuhle kwezinye izinhlelo zokulethwa kwezidakamizwa.
8. Izakhiwo zemishini ezinganele
Njenge-thickener ne-stabilizer, i-CMC inamandla aphansi uma kuqhathaniswa, okungenzeka kube isici esikhawulelayo kwezinye izinto ezidinga amandla aphezulu noma ukunwebeka okuphezulu. Isibonelo, kwezinye izindwangu noma izinto eziyinhlanganisela ezinezidingo zamandla aphezulu, ukusetshenziswa kwe-CMC kungase kukhawulwe noma kungase kudingeke ukuthi kusetshenziswe kuhlanganiswe nezinye izinto zokwakha ukuze kuthuthukiswe izakhiwo zayo zomshini.
Njengento esetshenziswa kabanzi esebenza ngezinto eziningi, i-carboxymethyl cellulose (CMC) inezinzuzo eziningi, kodwa ukungalungi nokulinganiselwa kwayo akunakunakwa. Uma usebenzisa i-CMC, izici ezifana nokuncibilika kwayo, ukuqina kwe-viscosity, ukuzinza kwamakhemikhali, umthelela wendawo kanye nezindleko kufanele kucatshangelwe ngokucophelela ngokuya ngesimo sohlelo oluthile. Ukwengeza, ucwaningo nentuthuko yesikhathi esizayo ingase ithuthukise ukusebenza kwe-CMC futhi inqobe ukushiyeka kwayo okukhona, ngaleyo ndlela yandise amandla ayo okusebenza emikhakheni eyengeziwe.
Isikhathi sokuthumela: Aug-23-2024