I-CMC isebenzisa Emkhakheni Wokuhlanza

I-Carboxymethyl cellulose (eyaziwa nangokuthi i-CMC kanye ne-sodium carboxymethyl cellulose) ingachazwa njenge-polymer encibilika emanzini anionic, ekhiqizwa ku-cellulose yemvelo ngokusebenzisa i-etherification, esikhundleni seqembu le-hydroxyl neqembu le-carboxymethyl ku-cellulose I-carboxymethyl cellulose isetshenziswa njenge-binder, i-thickener, i-ejenti yokumisa kanye nesigcwalisi ezinhlelweni ezahlukahlukene.

Isimiso sokusabela

Ukusabela kwamakhemikhali okuyinhloko kwe-CMC ukusabela kwe-alkalization kwe-cellulose ne-alkali ukwenza i-alkali cellulose kanye nokusabela kwe-etherification ye-alkali cellulose ne-monochloroacetic acid.

Isinyathelo 1: I-Alkalization: [C6H7O2(OH) 3]n + nNaOH→[C6H7O2(OH) 2ONa ]n + nH2O

Isinyathelo sesi-2: I-Etherification: [C6H7O2(OH) 2ONa ]n + nClCH2COONA→[C6H7O2(OH) 2OCH2COONA ]n + nNaCl

Imvelo yamakhemikhali

I-cellulose derivative ene-carboxymethyl substituent ilungiswa ngokwelapha i-cellulose nge-sodium hydroxide ukwenza i-alkali cellulose, bese isabela nge-monochloroacetic acid. Iyunithi ye-glucose eyakha i-cellulose inamaqembu angu-3 e-hydroxyl angashintshwa, ngakho imikhiqizo enamazinga ahlukene okubuyisela ingatholakala. Ngokwesilinganiso, i-1mmol ye-carboxymethyl yethulwa nge-1g yesisindo esomile. Ayincibiliki emanzini futhi ihlanza i-asidi, kodwa ingavuvuka futhi isetshenziselwe i-ion exchange chromatography. I-pKa ye-carboxymethyl cishe i-4 emanzini ahlanzekile futhi icishe ibe ngu-3.5 ku-0.5mol/L NaCl. Iwukushintshanisa kwe-cation ene-asidi ebuthakathaka futhi ngokuvamile isetshenziselwa ukuhlukanisa amaprotheni angathathi hlangothi nayisisekelo ku-pH 4 noma ngaphezulu. Labo abanamaqembu angaphezu kwama-40% we-hydroxyl esikhundleni se-carboxymethyl bangancibilika emanzini ukuze benze isisombululo esizinzile se-high-viscosity colloidal.

Izici zomkhiqizo weokokugeza Ibanga le-CMC

Ngemuva kokwengezwa ku-detergent, ukuhambisana kuphezulu, kusobala, futhi akubuyeli kuncane;

Ingakwazi ukuqina ngokuphumelelayo futhi izinze ukwakheka komshini wokuhlanza uketshezi;

Ukwengeza impushana yokuwasha kanye nesihlanzi esiwuketshezi kungavimbela ukungcola okugeziwe ukuthi kuhlale phezu kwendwangu futhi. Ukwengeza u-0.5-2% kumshini wokuhlanza wokwenziwa kungafinyelela imiphumela egculisayo;

I-CMC isebenzisa Embonini Yokuhlanza, IkakhulukaziGxila ku i-emulsification kanye nezakhiwo ze-colloid ezivikelayo ze-CMC. I-anion ekhiqizwa ngesikhathi sokugeza ingenza ngesikhathi esisodwa ubuso bokugeza kanye nezinhlayiya zokungcola zikhokhiswe kabi, ukuze izinhlayiya zokungcola zibe nokuhlukaniswa kwesigaba esigabeni samanzi futhi zibe nomphumela ofanayo ebusweni bokugeza okuqinile. I-repellency, ivimbela ukungcola ekubuyiseleni kabusha elondolo, kungagcina ubumhlophe bezindwangu ezimhlophe, nemibala ekhanyayo yezindwangu ezinemibala.

Umsebenzi we CMC kuokokugeza

1. Iqinisa, ihlakazeke futhi ifake i-emulsifying, ingakwazi ukumunca amabala anamafutha ezungeze amabala ukugoqa amabala anamafutha, ukuze amabala anamafutha amiswe futhi ahlakazeke emanzini, futhi enze ifilimu ye-hydrophilic ebusweni bezinto ezihlanziwe, ngaleyo ndlela ivimbele amabala anamafutha ngokuthintana ngqo nezinto eziwashiwe .
2. Izinga eliphakeme lokushintshwa nokufana, ukubonakala okuhle;
3. I-dispersibility enhle emanzini kanye nokumelana okuhle kwe-resorption;
4. I-viscosity ephezulu kakhulu nokuzinza okuhle.