Unyibiliko olukhawulezileyo/ olucothayo lweCellulose Ether (Unyango lwangaphandle)

Ulwahlulo lweEtere yeSelulosi

I-ether ye-cellulose ligama eliqhelekileyo loluhlu lweemveliso eziveliswa yi-reaction ye-alkali cellulose kunye ne-etherifying agent phantsi kweemeko ezithile.Xa i-cellulose ye-alkali ithathelwa indawo yi-etherifying agents ezahlukeneyo, ii-ethers ze-cellulose ezahlukeneyo ziya kufumaneka.

Ngokweepropathi ze-ionization ze-substituents, i-cellulose ethers inokwahlulwa ibe ngamacandelo amabini: ionic (efana ne-carboxymethyl cellulose) kunye ne-nonionic (efana ne-methyl cellulose).

Ngokohlobo lwe-substituent, i-cellulose ether inokohlulwa ibe yi-monoether (efana ne-methyl cellulose) kunye ne-ether exutywe (njenge-hydroxypropyl methyl cellulose).

Ngokwe-solubility eyahlukeneyo, inokwahlulwa ibe yi-solubility yamanzi (efana ne-hydroxyethyl cellulose) kunye ne-organic solvent solubility (efana ne-ethyl cellulose).

I-ethers ye-cellulose e-soluble yamanzi esetyenziswa kwii-mortars ezinomxube owomileyo zohlulwe zibe zi-ethers ze-cellulose ezichithwa ngoko nangoko kunye nokunyangwa okulibazisekayo-ukuchithwa.

Ziphi iiyantlukwano zabo?Kwaye indlela yokuyiqwalasela kakuhle kwisisombululo se-2% samanzi sokuvavanya i-viscosity?

Yintoni unyango olungaphezulu?

Isiphumo se-cellulose ether?

Ekuqaleni

Ukunyangwa komphezulu yindlela yokwenza i-artificially ye-surface layer phezu kwesiseko sesiseko esinomatshini, izinto eziphathekayo kunye neekhemikhali ezahlukeneyo kwisiseko.

Injongo yonyango lomphezulu we-ether ye-cellulose kukulibazisa ixesha lokudibanisa i-ether ye-cellulose kunye namanzi ukuhlangabezana neemfuno zokuqina okucothayo kwezinye iimbumba zepeyinti, kunye nokwandisa ukuxhathisa ukubola kwe-ether ye-cellulose kunye nokuphucula ukuzinza kokugcina.

Umahluko xa amanzi abandayo elungiselelwe nge-2% yesisombululo esinamanzi:

I-ether ye-cellulose ephathwayo inokusasazeka ngokukhawuleza emanzini abandayo kwaye akukho lula ukuhlanganisana ngenxa ye-viscosities yayo ecothayo;

I-Cellulose ether ngaphandle konyango lomphezulu, ngenxa ye-viscosities yayo ekhawulezayo, iya kubonakala ngaphambi kokuba ihlakazwe ngokupheleleyo emanzini abandayo, kwaye ijwayele ukuba i-agglomeration.

Uyiqwalasela njani i-ether yeselulosi enganyangekiyo ebusweni?

1. Okokuqala faka inani elithile le-ether ye-cellulose engafakwanga ebusweni;

2. Emva koko wongeza amanzi atshisayo malunga nama-80 degrees Celsius, ubunzima buyingxenye yesithathu yomthamo wamanzi afunekayo, ukwenzela ukuba ikwazi ukuvuvukala ngokupheleleyo kwaye ihlakazeke;

3. Emva koko, uthele ngokuthe chu emanzini abandayo, ubunzima bumbini kwisithathu samanzi aseleyo afunekayo, qhubeka uvuselela ukwenza unamathele ngokukhawuleza, kwaye akuyi kubakho i-agglomeration;

4. Ekugqibeleni, phantsi komqathango wobunzima obulinganayo, yibeke kwindawo yokuhlambela amanzi ashushu rhoqo de izinga lokushisa liyehla ukuya kuma-20 degrees Celsius, kwaye ke uvavanyo lwe-viscosity lunokwenziwa!