Hydroxyethyl cellulose (HEC)ndi yoyera kapena yopepuka yachikasu, yopanda fungo, yopanda poizoni kapena yolimba, yomwe imakonzedwa ndi etherification ya cellulose yamchere ndi ethylene oxide (kapena chlorohydrin). Nonionic soluble cellulose ethers. Kuphatikiza pa kukhuthala, kuyimitsa, kumanga, kuyandama, kupanga mafilimu, kubalalitsa, kusunga madzi ndi kupereka colloid yoteteza, ili ndi zotsatirazi:
1. 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 yopanda kutentha;
2. Siionic ndipo imatha kukhala limodzi ndi ma polima ena osungunuka m'madzi, ma surfactants, ndi mchere. Ndibwino kwambiri colloidal thickener kwa high-concentration electrolyte solutions;
3. Mphamvu yosungira madzi imakhala yowirikiza kawiri kuposa ya methyl cellulose, ndipo imakhala ndi malamulo oyendetsera bwino.
4. Poyerekeza ndi methyl cellulose yodziwika bwino ndi hydroxypropyl methyl cellulose, mphamvu yobalalika ya HEC ndiyoipa kwambiri, koma mphamvu yoteteza colloid ndiyo yamphamvu kwambiri. Chifukwa cha ubwino wake wa thickening, kuyimitsa, kubalalika, emulsifying, kumamatira, kupanga mafilimu, kuteteza chinyezi ndi kupereka colloid zoteteza, HEC yakhala ikugwiritsidwa ntchito kwambiri pofufuza mafuta, zokutira, zomangamanga, mankhwala, chakudya, nsalu, mapepala ndi polymerization. ndi minda ina.
Kusamalitsa:
Popeza kuti hydroxyethyl cellulose yopangidwa pamwamba ndi ufa kapena cellulose olimba, n'zosavuta kugwira ndikusungunula m'madzi malinga ngati zinthu zotsatirazi zikuyang'aniridwa. ndi
1. Musanayambe komanso mutatha kuwonjezera hydroxyethyl cellulose, iyenera kugwedezeka mosalekeza mpaka yankho likuwonekera bwino komanso lomveka bwino. ndi
2. Iyenera kusefedwa pang'onopang'ono mu thanki yosakaniza, osawonjezera mwachindunji kuchuluka kwa hydroxyethyl cellulose kapena hydroxyethyl cellulose yomwe yapanga zotupa ndi mipira mu thanki yosakaniza. ndi
3. Kutentha kwa madzi ndi mtengo wa PH m'madzi zimakhala ndi chiyanjano chodziwikiratu ndi kusungunuka kwa cellulose ya hydroxyethyl, kotero chisamaliro chapadera chiyenera kulipidwa. ndi
4. Musawonjezere zinthu za alkaline kusakaniza ufa wa hydroxyethyl cellulose usanatenthedwe m'madzi. Kukweza mtengo wa PH mutatha kutentha kumathandiza kusungunuka. ndi
5. Momwe mungathere, onjezerani anti-fungal agent mwamsanga momwe mungathere. ndi
6. Mukamagwiritsa ntchito high-viscosity hydroxyethyl cellulose, kuchuluka kwa mowa wa mayi sayenera kupitirira 2.5-3%, apo ayi mowa wa amayi udzakhala wovuta kupirira. Ma cellulose a hydroxyethyl pambuyo pothiridwa nthawi zambiri sakhala ophweka kupanga zotupa kapena mabwalo, komanso sapanga ma colloid ozungulira osasungunuka atawonjezera madzi.
Nthawi yotumiza: Dec-27-2022