Sodium carboxymethyl cellulose ulwazi

I-Sodium Carboxymethyl Cellulose (CMC) iyingxenye ye-polymer esetshenziswa kabanzi ezimbonini eziningi njengokudla, umuthi, izimonyo, izindwangu, iphepha nokushayela uwoyela. Itholakala ngokuguqulwa kwamakhemikhali kwe-cellulose. Izici zayo ezihlelekile ukuthi amanye amaqembu e-hydroxyl kuma-molecule we-cellulose athathelwa indawo amaqembu e-carboxymethyl (-CH2COOH) futhi ahlanganiswe nama-sodium ions ukwakha usawoti we-sodium oncibilikisiwe.

1. Isakhiwo samakhemikhali nezakhiwo

Ifomula yamakhemikhali ye-sodium carboxymetyl celtulose i (C6H'7O2 (oh) 2ch2coona) n, eno-soubelity ethile kanye nokumuncwa kwamanzi. Isakhiwo saso esiyisisekelo yisakhiwo esiqondile esakhiwa ama-molecule we-cellulose monomers-glucose. Ngemuva kokuguqulwa kwamakhemikhali, amanye noma wonke amaqembu e-hydroxyl kuma-molecule we-cellulose athathelwa indawo amaqembu e-carboxymethyl ukwakha ama-molecule ancibilikayo amanzi ngamacala amabi. Ngokukhethekile, uchungechunge lwama-molecular lwe-sodium carboxymelylllulose luqukethe inani elikhulu lamaqembu e-carboxymethyl (-CH2COOH), elingasebenzisana nama-molecule amanzi, anikeze izici ezinhle kakhulu kanye ne-viscosity.

I-CMC inezakhiwo eziyisisekelo ezilandelayo:

I-Solubinity yamanzi: I-Sodium carboxyyl celtule

I-Viscosity: Isixazululo samanzi e-CMC sinokubonakala okuphezulu, futhi i-viscosity ihlobene nesisindo sayo samangqamuzana nesixazululo.

Ukuzinza: I-CMC inokuqina okuhle ku-acid, i-alkali kanye nokushisa okuphezulu, kepha endaweni enamandla noma i-alkali, ukuqina kwe-CMC kuzokwehla.

Ukuguqulwa: Ngokushintsha isisindo molecular kanye degree of cmc, i-brouftical and chemicals yayo ingalawulwa ngokunembile.

2. Indlela yokulungiselela

I-Sodium Carboxymethyl celtulose imvamisa ilungiselelwe ngokuphendula i-cellulose kanye ne-sodium chlororetate endaweni ye-alkaline. Izinyathelo ezithile zinjengokulandelayo:

Ukuhlekisa kwe-cellulose: Okokuqala, iselula (njenge-fiber yekotini) kuyageza ukuze kudalule ukungcola.

Ukusabela kwe-Alkalinization: I-cellulose eyenziwe sengathi yaphendulwa ngesisombululo se-sodium hydroxide ukuhlukanisa ingxenye ye-hydroxy ku-molecule ye-cellulose ukwakha i-cellulose sodium usawoti.

Ukusabela okufakiwe: Ngaphansi kwezimo ze-alkali, i-sodium chlororetate kuyengezwa, futhi i-sodium chlororetate iphendula nge-sodium celtule
Ukugeza nokomisa: Ngemuva kokusabela sekuqediwe, umkhiqizo ugezwa ngamanzi ukususa ukungcola, futhi ekugcineni wahlanza i-sodium carboxymethyl celtulose.

3. Izinkambu zohlelo lokusebenza

Ngenxa ye-solubility yayo enhle, ukuqina nokuqina, i-sodium carboxymethyl cellulose isetshenziswa kabanzi kule mikhakha elandelayo:

Imboni yokudla: Njengomkhulu, i-stabilizer, emulsifier, i-ejenti ye-gelling, njll. Kuvame ukutholakala ekudleni okufana no-ayisikhilimu, jelly, isobho, njll. Umsebenzi wayo oyinhloko ukuthuthukisa ukunambitheka kokudla, ukwelula ukuvumelana.

Imboni yezemithi: Njengomenzeli we-binder, okhule, omisiwe, osomisele izidakamizwa, isetshenziswa kumathebulethi, amaphilisi, izimbotshana zomlomo, amafutha e-topical namanye amalungiselelo. Ngaphezu kwalokho, i-CMC nayo isetshenziswa njengezinto ezibonakalayo zokuhlinzwa nezinto zamazinyo.

Imboni yezimonyo: Isetshenziselwa ukukhiqizwa kwe-lotion, okhilimu, ama-shampoos, amazinyo neminye imikhiqizo njengomuntu omkhulu ne-stabilizer. Ingalungisa i-viscosity yomkhiqizo futhi ithuthukise isipiliyoni somsebenzisi.

Umkhakha Wezimpikiswano: Njenge-ejenti yokwelashwa komhlaba ephepheni, i-CMC ingathuthukisa amandla, ukumelana kwamanzi kanye nokuphrinta iphepha nokunciphisa uthuli ebusweni bephepha.

Ukushayela uwoyela: Ngesikhathi sokushayela uwoyela, i-CMC isetshenziswa ku-drive fluid ukuze ikhule futhi iqinise ukutshala uketshezi, isiza ukususa ukusikwa kwe-rock kuzungeze i-drill bit bese uzinza udonga kahle.

Imboni yendwangu: Njengomhlakazeli wedayi nokuphrinta ukunamathisela okungeziwe, i-CMC ingathuthukisa ukufana kokudaya nekhwalithi yezindwangu.

4. Ukuphepha kanye nomthelela wezemvelo

I-Sodium Carboxymethyl Cellulose ngokuvamile ibhekwa njengephephile, futhi ukusetshenziswa kwayo ekudleni nomuthi kuvunyelwe yi-International Food Food AddItives Codex kanye nemithetho efanele yamazwe amaningi. Akuyona into enobuthi emzimbeni womuntu futhi ngeke ibe nomthelela omkhulu endaweni yemvelo, ngakho-ke isetshenziswa kabanzi.

Kodwa-ke, yize i-CMC uqobo inobungane imvelo, inqubo yayo yokukhiqiza ingabandakanya ukusetshenziswa kwamanye amakhemikhali amakhemikhali kanye nezinkinga zokwelashwa kwamanzi. Ngakho-ke, kuyadingeka ukunaka izindlela zokuvikela ezemvelo ngesikhathi senqubo yokukhiqiza ukunciphisa ukuphuma kwezinto eziyingozi.

I-Sodium carboxyyl celtulose iyinto esetshenziswa kabanzi ne-multifunctional polymer. Ukuqina kwalo, ukuzinza kanye nama-gelling kwenza kubalulekile kwizimboni eziningi. Ukusuka ekudleni, umuthi oya embonini, i-CMC idlala indima ebalulekile. Ngokuthuthuka okuqhubekayo kobuchwepheshe ngokuzayo, inkambu yesicelo ye-CMC ingahle yandiswe.