Kukumana pakati pa hydroxyethyl cellulose ndi zokutira zotengera madzi

Hydroxyethyl cellulose ndi chiyani?
Hydroxyethyl cellulose (HEC), yoyera kapena yopepuka yachikasu, yopanda fungo, yopanda poizoni kapena yolimba, yokonzedwa ndi etherification ya cellulose yamchere ndi ethylene oxide (kapena chlorohydrin), ndi ya Nonionic soluble cellulose ethers. Popeza HEC ili ndi katundu wabwino wa thickening, kuyimitsa, kumwazikana, emulsifying, kugwirizana, kupanga mafilimu, kuteteza chinyezi ndi kupereka colloid zoteteza, zakhala zikugwiritsidwa ntchito kwambiri pofufuza mafuta, zokutira, zomangamanga, mankhwala, chakudya, nsalu, kupanga mapepala ndi polymerization. ndi minda ina.

Ma cellulose a Hydroxyethyl amagwiritsidwa ntchito kwambiri pantchito zokutira, tiyeni tiwone momwe zimagwirira ntchito pakupaka:

Kodi chimachitika ndi chiyani ngati hydroxyethyl cellulose ikumana ndi utoto wamadzi?

Monga si ionic surfactant, hydroxyethyl cellulose ili ndi zinthu zotsatirazi kuwonjezera pa kukhuthala, kuyimitsa, kumanga, kuyandama, kupanga mafilimu, kubalalitsa, kusunga madzi ndi kupereka colloid yoteteza:

HEC imasungunuka m'madzi otentha kapena madzi ozizira, kutentha kwakukulu kapena kuwira popanda mvula, kotero kuti imakhala ndi mitundu yambiri ya solubility ndi viscosity, ndi gelation yosatentha;

Mphamvu yosungira madzi imakhala yowirikiza kawiri kuposa ya methyl cellulose, ndipo imakhala ndi malamulo oyendetsera bwino;

Si ionic ndipo imatha kukhala limodzi ndi ma polima ena osungunuka m'madzi, ma surfactants, ndi mchere. Ndibwino kwambiri colloidal thickener kwa high-concentration electrolyte solutions;

Poyerekeza ndi methyl cellulose yodziwika bwino ndi hydroxypropyl methyl cellulose, kuthekera kobalalika kwa HEC ndikoyipa kwambiri, koma luso loteteza la colloid ndilolimba kwambiri.

Popeza kuti hydroxyethyl cellulose yopangidwa pamwamba ndi ufa kapena ulusi wolimba, mfundo zotsatirazi ziyenera kutsatiridwa pokonzekera chakumwa cha mayi cha hydroxyethyl:

(1) Isanayambe komanso itatha kuwonjezera hydroxyethyl cellulose, iyenera kugwedezeka mosalekeza mpaka yankho likuwonekera bwino komanso lomveka bwino.
(2) Iyenera kusefedwa pang'onopang'ono mu thanki yosanganikirana, ndipo musaike kuchuluka kapena kuyika mwachindunji hydroxyethyl cellulose mu thanki yosakaniza.
(3) Kutentha kwa madzi ndi mtengo wa PH m'madzi kumakhala ndi ubale wofunikira ndi kusungunuka kwa cellulose ya hydroxyethyl, kotero chisamaliro chapadera chiyenera kulipidwa.
(4) Osawonjezera zinthu za alkaline kusakaniza ufa wa hydroxyethyl cellulose usanalowedwe ndi madzi. Kukweza pH pambuyo pakunyowetsa kumathandiza kusungunuka.
(5) Momwe mungathere, onjezerani antifungal wothandizira pasadakhale.
(6) Pamene ntchito mkulu mamasukidwe akayendedwe mapadi hydroxyethyl mapadi, ndende ya mowa mayi sayenera kupitirira 2.5-3% (ndi kulemera), apo ayi mowa mayi adzakhala ovuta kupirira.