Ts'ebetso le ts'ebeliso ea hydroxyethyl cellulose

Thepa ea Hydroxyethyl Cellulose

Lintho tse ka sehloohong tsa hydroxyethyl cellulose ke hore e qhibiliha ka metsing a batang le metsing a chesang, 'me ha e na thepa ea gel. E na le mefuta e mengata ea tekanyo ea ho fetola, ho qhibiliha le viscosity, botsitso bo botle ba mocheso (ka tlase ho 140 ° C), 'me ha e hlahise gelatin tlas'a maemo a acidic. pula. Tharollo ea selulose ea Hydroxyethyl e ka etsa filimi e hlakileng, 'me e na le litšobotsi tsa mofuta o seng oa ionic o sa sebelisaneng le li-ion le ho lumellana hantle.

① Mocheso o phahameng le ho qhibiliha ha metsi: Ha ho bapisoa le methyl cellulose (MC) e qhibilihang feela metsing a batang, hydroxyethyl cellulose e ka qhibiliha ka metsing a chesang kapa metsing a batang, 'me ha e na mocheso o phahameng kapa ho belisoa, ho etsa hore e be le mefuta e mengata e fapaneng. solubility le viscosity litšobotsi, le thepa e seng thermogelling.

②Mamello ea letsoai: Kaha ha e na ionic, e ka phela hammoho le mefuta e mengata e mengata ea li-polymers tse qhibilihang metsing, li-surfactants le letsoai. Ka hona, ha e bapisoa le ionic carboxymethyl cellulose (CMC), hydroxyethyl cellulose e na le khanyetso e ntle ea letsoai.

③ Ho boloka metsi, ho leka-lekanya, le thepa ea ho etsa filimi: matla a eona a ho boloka metsi a phahame ka makhetlo a mabeli ho feta a methyl cellulose, 'me e na le taolo e ntle ea ho phalla, thepa e ntle ea ho etsa filimi, taolo ea tahlehelo ea mokelikeli, ho se kopane le thobalano e sireletsang ea colloid.

Tšebeliso ea hydroxyethyl cellulose

Hydroxyethyl cellulose ke sehlahisoa sa ether se se nang ionic se qhibilihang ka metsing, se sebelisoang haholo ka liphahlo tsa meralo, peterole, polymerization ea polymer, meriana, tšebeliso ea letsatsi le letsatsi, pampiri le enke, lesela, ceramics, kaho, temo le liindasteri tse ling. E na le mesebetsi ea ho tiisa, ho kopanya, ho emulsifying, ho qhalakanya le ho tsitsisa, 'me e ka boloka metsi, ho etsa filimi le ho fana ka phello e sireletsang ea colloid. E qhibiliha habonolo metsing a batang le metsing a chesang, 'me e ka fana ka tharollo ka mefuta e mengata ea viscosity. Ke tsoelopele lilemong tsa morao tjena. E 'ngoe ea li-ether tsa cellulose tse potlakileng.

1. Pente ea latex

Hydroxyethyl cellulose ke setenya se sebelisoang haholo lipenteng tsa latex. Ntle le pente e teteaneng ea latex, e ka boela ea emulsify, ea qhalakanya, ea tsitsisa le ho boloka metsi. E khetholloa ka phello e tsotehang e teteaneng, nts'etsopele e ntle ea mebala, ho etsa filimi le botsitso ba polokelo. Hydroxyethyl cellulose ke ntho e tsoang ho selulose e seng ea ionic e ka sebelisoang maemong a mangata a pH. E na le tumellano e ntle le lisebelisoa tse ling tse ka har'a motsoako (joalo ka li-pigments, li-additives, li-fillers le letsoai). Liaparo tse teteaneng ka hydroxyethyl cellulose li na le rheology e ntle ka litekanyetso tse fapaneng tsa ho kuta 'me ke pseudoplastic. Mekhoa ea kaho e kang ho roala borashe, ho roala rolara le ho roala spray ho ka amoheloa. Mohaho o motle, ha ho bonolo ho rotha, ho thella le ho fafatsa, le thepa e ntle e leka-lekaneng.

2. Polymerization

Hydroxyethyl cellulose e na le mesebetsi ea ho hasanya, emulsifying, ho emisa le ho tsitsisa likarolong tsa polymerization kapa copolymerization ea li-resin tsa maiketsetso, 'me e ka sebelisoa e le colloid e sireletsang. E khetholloa ka bokhoni bo matla ba ho qhalakanngoa, "filimi" e tšesaane, boholo bo botle ba likaroloana, sebōpeho sa likaroloana tse ts'oanang, mofuta o hlephileng, metsi a mangata, pepeneneng e phahameng ea lihlahisoa le ho sebetsa habonolo. Hobane cellulose ea hydroxyethyl e ka qhibiliha ka metsing a batang le metsing a chesang, 'me ha e na mocheso oa mocheso oa gelation, e loketse karabelo e fapaneng ea polymerization.

Lintho tsa bohlokoa tsa 'mele ho batlisisa boleng ba dispersant ke tsitsipano ea holim'a (kapa sefahleho), matla a sefahleho le mocheso oa gelation oa tharollo ea eona ea metsi. Lintho tsena tsa hydroxyethyl cellulose li loketse polymerization kapa copolymerization ea li-resin tsa maiketsetso. Hydroxyethyl cellulose e lumellana hantle le tse ling tse qhibilihang ka metsing cellulose ethers le PVA. Sistimi e kopaneng e entsoeng e ka fumana phello e felletseng ea ho ithuta ho tsoa ho e mong. Lihlahisoa tsa resin tse entsoeng ka mor'a ho kopanya ha li na boleng bo botle feela, empa hape li fokotsa tahlehelo ea thepa.

3. Ho cheka oli

Ho cheka oli le tlhahiso, high-viscosity hydroxyethyl cellulose e sebelisoa haholo-holo e le motenya bakeng sa ho tlatsa maro le maro a ho qetela. Low viscosity hydroxyethyl cellulose e sebelisoa e le phokotso ea tahlehelo ea mokelikeli. Lirapeng tse fapa-fapaneng tse hlokahalang bakeng sa ho cheka, ho phethoa hantle, ho etsa samente hantle le ho senya, hydroxyethyl cellulose e sebelisoa e le motenya ho fumana metsi a matle le botsitso ba seretse. Nakong ea ho phunya, e ka ntlafatsa bokhoni ba ho jara lehlabathe la seretse le ho lelefatsa bophelo ba tšebeletso ea sekhahla sa ho phunya. Boemong bo tlase bo tiileng ba ho phethela mokelikeli le mokelikeli oa samente, tahlehelo e ntle ea metsi e fokotsang ts'ebetso ea hydroxyethyl cellulose e ka thibela metsi a mangata ho kena lera la oli ho tsoa seretseng, 'me e ka ntlafatsa bokhoni ba tlhahiso ea lera la oli.

4. Lik'hemik'hale tsa letsatsi le letsatsi

Hydroxyethyl cellulose ke moemeli ea sebetsang hantle oa ho etsa lifilimi, binder, thickener, stabilizer le dispersant ka li-shampoo, li-sprays tsa moriri, li-neutralizers, li-conditioner tsa moriri le litlolo; ka phofo ea ho hlatsoa Ke moemeli oa ho tsosolosa mobu. Hydroxyethyl cellulose e qhibiliha ka potlako mocheso o phahameng, o ka potlakisang ts'ebetso ea tlhahiso le ho ntlafatsa katleho ea tlhahiso. Ntho e totobetseng ea sesepa se nang le hydroxyethyl cellulose ke hore se ka ntlafatsa boreleli le silika ea lesela.

5. Kaho

Hydroxyethyl cellulose e ka sebelisoa lihlahisoa tsa kaho tse kang metsoako ea konkreite, seretse se secha, samente ea gypsum kapa lisamente tse ling, joalo-joalo, ho boloka metsi nakong ea kaho pele e beha le ho thatafala. Ntle le ho ntlafatsa ho boloka metsi a lihlahisoa tsa mohaho, hydroxyethyl cellulose e boetse e lelefatsa nako ea khalemelo le nako e bulehileng ea plaster kapa mastic. E ka fokotsa ho ruruha, ho thella le ho thella. Kahoo, ts'ebetso ea kaho e ka ntlafatsoa, ​​ts'ebetso ea ts'ebetso e ka eketseha, 'me nako e ka bolokeha. Ka nako e ts'oanang, sekhahla sa katoloso ea matla a stucco se ka ntlafatsoa, ​​ka hona ho boloka thepa e tala.

6. Temothuo

Hydroxyethyl cellulose e sebelisoa ha ho etsoa emulsion ea chefo e bolaeang likokoanyana le ho emisoa, e le motenya bakeng sa emulsions ea spray kapa suspensions. E ka fokotsa ho hoholeha ha lik'hemik'hale 'me ea etsa hore e khomarele ka thata makhasi a limela, kahoo e eketsa phello ea ho fafatsa ka foliar. Hydroxyethyl cellulose e ka boela ea sebelisoa e le moemeli oa ho etsa filimi ho li-agent tsa ho roala peo; joalo ka setlamo le ho etsa lifilimi ho nchafatsa makhasi a koae.

7. Ho etsa pampiri le enke ea khatiso

Hydroxyethyl cellulose e ka sebelisoa e le sesebelisoa sa boholo bakeng sa pampiri le boto hape e le ntho e teteaneng le e emisang li-inks tse thehiloeng metsing. Ts'ebetsong ea ho etsa pampiri, thepa e phahameng ea hydroxyethyl cellulose e kenyelletsa ho lumellana le marenene a mangata, li-resin le matsoai a sa tloaelehang, foam e tlaase, tšebeliso e tlaase ea oksijene le bokhoni ba ho etsa filimi e boreleli ea holim'a metsi. Filimi ena e na le matla a tlaase a holimo le khanya e phahameng, e ka boela ea fokotsa litšenyehelo. Pampiri e boholo bo nang le hydroxyethyl cellulose, e ka sebelisoang ho hatisa litšoantšo tsa boleng bo holimo. Ha ho etsoa enke e thehiloeng metsing, enke e thehiloeng metsing e teteaneng ka hydroxyethyl cellulose e omella kapele, e na le phallo e ntle ea mebala, 'me ha e bake ho khomarela.

8. Lesela

E ka sebelisoa e le sekontiri se tlamang le sa sizeng ho hatisa masela le ho daea lipente le lipente tsa latex; joalo ka sekoaelo sa ho leka-lekanya thepa ka morao ho limmete. Ka fiber ea khalase, e sebelisoa e le ntho ea ho etsa le ho kopanya; ho peista ea letlalo, e ka sebelisoa e le mofetoleli le se tlamang. Fana ka mefuta e mengata ea li-viscosity bakeng sa liphahlo tsena kapa li-adhesives, etsa hore seaparo se be se ts'oanang le ho potlaka, 'me u ntlafatse ho hlaka ha khatiso le ho daea.

9. Ceramics

E ka sebelisoa ho etsa li-binders tse matla haholo bakeng sa lirafshoa.

10. Sesepa sa meno

E ka sebelisoa e le motenya ha ho etsoa sesepa sa meno.