Hydroxyethyl cellulose ke tekanyo e bohareng ho isa ho e phahameng ea viscosity ea cellulose ether, e sebelisoang e le motenya le stabilizer bakeng sa liphahlo tse thehiloeng metsing, haholo-holo ha viscosity ea polokelo e le holimo le viscosity ea kopo e tlaase. Cellulose ether ho bonolo ho qhalakanya ka metsi a batang ka pH boleng ≤ 7, empa ho bonolo ho agglomerate ka alkaline mokelikeli le pH boleng ≥ 7,5, kahoo re lokela ho ela hloko dispersibility ea selulose ether.
Likarolo le tšebeliso ea hydroxyethyl cellulose:
1. Anti-enzyme non-ionic water thickener, e ka sebelisoang ka mefuta e mengata ea pH ea bohlokoa (PH = 2-12).
2. Ho bonolo ho hasanya, e ka ekeletsoa ka ho toba ka mokhoa oa phofo e omeletseng kapa ka mokhoa oa slurry ha o sila li-pigments le li-fillers.
3. Kaho e babatsehang. E na le melemo ea ho pholosa mosebetsi, ha ho bonolo ho rotha le ho fanyeha, le khanyetso e ntle ea ho phatloha.
4. Ho lumellana hantle le li-surfactants tse sa tšoaneng le li-preservatives tse sebelisoang ka pente ea latex.
5. Viscosity ea polokelo e tsitsitse, e ka thibelang viscosity ea pente ea latex ho fokotseha ka lebaka la ho senyeha ha li-enzyme ka kakaretso ea hydroxyethyl cellulose.
Thepa ea Hydroxyethyl Cellulose
Hydroxyethyl cellulose ether ke polima e qhibilihang ka metsing e seng ionic. Ke phofo e tšoeu kapa e bobebe e mosehla e phallang habonolo. Ka kakaretso ha e qhibilihe ka har'a metsoako e mengata ea manyolo
1. HEC e qhibiliha ka metsing a chesang kapa a batang, 'me ha e fokotsehe ka mocheso o phahameng kapa ho belisoa, e leng se etsang hore e be le mefuta e mengata ea ho qhibiliha le litšoaneleho tsa viscosity, le gelation e se nang mocheso.
2. Ha e na ionic 'me e ka phela hammoho le li-polymers tse ling tse qhibilihang metsing, li-surfactants le matsoai. Ke colloidal thickener e babatsehang bakeng sa tharollo e nang le li-electrolyte tse phahameng haholo.
3. Matla a ho boloka metsi a phahame ka makhetlo a mabeli ho feta a methyl cellulose, 'me a na le taolo e ntle ea ho phalla.
4. Ha ho bapisoa le methyl cellulose e tsejoang le hydroxypropyl methyl cellulose, bokhoni ba ho qhalakanngoa ba HEC bo bobe ka ho fetisisa, empa bokhoni ba ho sireletsa colloid ke bo matla ka ho fetisisa (bo mebala-bala).
Ho teteana
Ama ho sebetsa, joalo ka: coatability, splash resistance, tahlehelo ea ho hanyetsa; sebopeho se khethehileng sa marang-rang sa cellulose ether se ka tsitsisa phofo tsamaisong ea ho roala, ea liehisa ho lula ha eona, 'me ea etsa hore tsamaiso e fumane phello e ntle ea polokelo.
Ho hanyetsa metsi hantle
Ka mor'a hore filimi ea pente e omme ka ho feletseng, e na le ho hanyetsa metsi ho babatsehang. Sena se bontša ka ho khetheha bohlokoa ba ho hanyetsa metsi a eona tsamaisong e phahameng ea PVC. Ho tloha linaheng tse ling ho ea ho lihlahisoa tsa Sechaena, tsamaisong ena e phahameng ea PVC, palo ea cellulose ether e ekelitsoeng ke 4-6 ‰.
ho boloka metsi hantle
Hydroxyethyl cellulose e ka lelefatsa nako ea ho pepeseha le ho laola nako ea ho omisa ho fumana sebopeho se betere sa filimi; har'a bona, ho boloka metsi a methyl cellulose le hypromellose ho theoha ka botebo ka holimo ho 40 ° C, 'me lithuto tse ling tsa linaheng tse ling li lumela hore li ka fokotsoa ka 50%, monyetla oa mathata a lehlabula le mocheso o phahameng o eketseha haholo.
E ntle botsitso ho fokotsa flocculation ea pente
Felisa sedimentation, syneresis le flocculation; Khabareng, hydroxyethyl cellulose ether ke mofuta o seng oa ionic oa sehlahisoa. Ha e sebetsane le li-additives tse fapaneng tsamaisong.
Ho lumellana hantle le tsamaiso ea mebala e mengata
Khokahano e ntle ea li-colorants, li-pigments le li-filler; hydroxyethyl cellulose ether e na le nts'etsopele ea mebala e ntle ka ho fetisisa, empa kamora ho fetoloa, joalo ka methyl le ethyl, ho tla ba le likotsi tse patiloeng tsa ho lumellana ha pigment.
Ho lumellana hantle le lisebelisoa tse sa tšoaneng tse tala
E ka sebelisoa lits'ebetsong tse fapaneng tsa ho etsa li-coating.
Mosebetsi o phahameng oa antimicrobial
E loketse litsamaiso tsa silicate
Nako ea poso: Feb-02-2023