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.
Pambuyo pa msonkhano wa hydroxyethyl cellulose 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;
Poyerekeza ndi methyl cellulose yodziwika bwino ndi hydroxypropyl methyl cellulose, kuthekera kobalalika kwa HEC ndikoyipa kwambiri, koma luso loteteza la colloid ndilolimba kwambiri;
Si ionic ndipo imatha kukhala limodzi ndi ma polima ena osungunuka m'madzi, ma surfactants, ndi mchere. Ndi colloidal thickener yabwino yothetsera mayankho omwe ali ndi ma electrolyte apamwamba kwambiri.
Momwe mungagwiritsire ntchito hydroxyethyl cellulose?
Onjezani mwachindunji panthawi yopanga - njirayi ndi yosavuta komanso imatenga nthawi yochepa kwambiri:
Yambani kusonkhezera mosalekeza pa liwiro lotsika ndipo pang’onopang’ono sefa hydroxyethyl cellulose mofanana mu yankho ndikupitiriza kusonkhezera mpaka tinthu tambirimbiri tanyowa. Kenaka yikani zotetezera ndi zina zowonjezera. Monga inki, dispersing zothandizira, ammonia madzi, etc. Muziganiza mpaka onse hydroxyethyl mapadi kusungunuka kwathunthu (kukhuthala kwa kukhuthala kwa yankho kumawonjezera kwambiri) pamaso kuwonjezera zigawo zina mu chilinganizo anachita.
Zokhala ndi chakumwa cha mayi
Ndiko kukonzekeretsa chakumwa cha mayi ndi mlingo wapamwamba choyamba, ndiyeno kuwonjezera pa mankhwalawo. Ubwino wa njirayi ndikuti umakhala ndi kusinthasintha kwakukulu ndipo ukhoza kuwonjezeredwa mwachindunji ku mankhwala omalizidwa, koma ayenera kusungidwa bwino. Masitepe a njirayi ndi ofanana ndi masitepe ambiri mu njira 1; kusiyana ndi kuti palibe chifukwa mkulu-kumeta ubweya agitator, ndi ena agitators ndi mphamvu zokwanira kusunga mapadi hydroxyethyl uniformly omwazika mu yankho akhoza kupitilizidwa popanda kusiya Kusonkhezera mpaka kwathunthu kusungunuka mu njira viscous. Komabe, ziyenera kudziwidwa kuti fungicide iyenera kuwonjezeredwa ku mowa wa amayi posachedwa.
Malangizo abwino:
Popeza pamwamba ankachitira hydroxyethyl mapadi ndi ufa kapena fibrous olimba, pokonzekera hydroxyethyl mapadi mowa mayi, kukumbutsani kulabadira mfundo zotsatirazi:
Isanayambe kapena itatha kuwonjezera hydroxyethyl cellulose, iyenera kugwedezeka mosalekeza mpaka yankho likuwonekera bwino komanso lomveka bwino;
Iyenera kusefedwa pang'onopang'ono mu thanki yosanganikirana, ndipo musayike mwachindunji mu thanki yosanganikirana yochuluka kapena mumiyendo, mipira ndi hydroxyethyl cellulose;
Kutentha kwa madzi ndi PH mtengo m'madzi zimakhala ndi ubale wodziwikiratu ndi kusungunuka kwa cellulose ya hydroxyethyl, kotero chidwi chapadera chiyenera kulipidwa;
Osawonjezera zinthu zamchere kusakaniza ufa wa hydroxyethyl cellulose usanavidwe ndi madzi. Kukweza pH mtengo pambuyo pakuviika kumathandizira kusungunuka;
Momwe mungathere, onjezerani anti-mold wothandizira pasadakhale;
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.
Nthawi yotumiza: Dec-23-2022