Hydroxyethyl cellulose (HEC) ke 'mala o mosehla o mosoeu kapa o bobebe, o sa nkhang hamonate, o se nang chefo kapa oa phofo o lokisitsoeng ke etherification ea alkaline cellulose le ethylene oxide (kapa chlorohydrin). Nonionic soluble cellulose ethers. Hobane HEC e na le thepa e ntle e kang ho teteka, ho emisa, ho qhalakanya, emulsifying, ho tlamahane, ho etsa filimi, ho sireletsa mongobo le ho fana ka li-colloids tse sireletsang, e 'nile ea sebelisoa haholo ho hlokomela letlalo, ho hlahloba oli, ho roala, ho haha, meriana le lijo, masela, ho etsa pampiri le polima. Polymerization le likarolo tse ling. 40 letlooeng sieving sekhahla ≥ 99%;
Ponahalo: bosoeu ho isa ho bosehla bo bosehla bo fibrous kapa phofo, ha bo chefo, ha bo na monko, bo qhibiliha habonolo metsing. Ha e khone ho qhibiliha ka kakaretso ka metsoako ea tlhaho.
Hydroxyethyl cellulose
Boemong ba boleng ba PH ea 2-12, phetoho ea viscosity e nyane, empa viscosity e fokotseha ho feta mofuta ona. E na le thepa ea ho tiisa, ho emisa, ho kopanya, ho emulsifying, ho qhalakanya, ho boloka mongobo le ho sireletsa colloid. Litharollo tsa mefuta e fapaneng ea viscosity li ka lokisoa. Ha e tsitsa tlas'a mocheso o tloaelehileng le khatello, e qoba mongobo, mocheso le mocheso o phahameng, 'me e na le ho qhibiliha ha letsoai ka mokhoa o ikhethang bakeng sa dielectrics,' me tharollo ea eona ea metsi e lumelloa ho ba le letsoai le phahameng 'me e tsitsitse.
Lintho tsa bohlokoa: Joalo ka "non-ionic surfactant", hydroxyethyl cellulose e na le lintho tse latelang ho kenyelletsa ho teteaneng, ho emisa, ho tlama, ho phaphamala, ho etsa filimi, ho qhalakanya, ho boloka metsi le ho fana ka li-colloid tse sireletsang:
1. HEC e qhibiliha ka metsing a chesang kapa a batang, 'me ha e chese ka mocheso o phahameng kapa ho belisoa, ho etsa 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 mefuta e mengata e mengata ea li-polymers tse qhibilihang ka metsing, li-surfactants le letsoai,' me ke motsoako o babatsehang oa colloidal o nang le litharollo tse phahameng tsa electrolyte;
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 colloid e sireletsang e na le matla a matla ka ho fetisisa.
Ho phutha sebaka sa kopo
E sebelisoa e le sekhomaretsi, surfactant, colloid sireletsa agent, dispersant, emulsifier le dispersion stabilizer. E na le mefuta e mengata ea ts'ebeliso ea litlolo, li-inki, likhoele, ho daea, ho etsa pampiri, litlolo, chefo e bolaeang likokoanyana, ho lokisa liminerale, ho ntšoa ha oli le meriana.
1. Ka kakaretso e sebelisoa e le setsi sa thickening, moemeli oa tšireletso, sekhomaretsi, stabilizer le additi bakeng sa ho lokisetsa emulsion, gel, mafura, lotion, moemeli oa ho hloekisa mahlo, suppository le tablet, hape e sebelisoa e le gel ea hydrophilic, lisebelisoa tsa skeleton, ho lokisetsa litokisetso tsa skeleton tse tsoelang pele. , hape e ka sebelisoa e le stabilizer lijong.
2. E sebelisoa e le sesebelisoa sa boholo indastering ea masela, bonding, thickening, emulsifying, stabilizing le tse ling tse thusang likarolong tsa elektronike le indasteri e bobebe.
3. E sebelisoa e le sethibelo se teteaneng le se sefang bakeng sa mokelikeli oa ho cheka o thehiloeng metsing le mokelikeli o phethoang, 'me e na le phello e hlakileng ea ho teteana ha metsi a cheka metsi a letsoai. E ka boela ea sebelisoa e le moemeli oa ho laola tahlehelo ea mokelikeli bakeng sa samente ea seliba sa oli. E ka kopanngoa le li-ion tsa tšepe tse polyvalent ho etsa li-gel.
4. Sehlahisoa sena se sebelisoa e le dispersant bakeng sa metsi-based gel fracturing fluids, polystyrene le polyvinyl chloride tlhahiso ea oli ea fracturing. E ka boela ea sebelisoa e le emulsion thickener indastering ea pente, mochini o thibelang mongobo indastering ea elektroniki, samente coagulation inhibitor le moemeli oa ho boloka mongobo indastering ea kaho. Li-glazing le li-adhesives tsa meno bakeng sa indasteri ea ceramic. E boetse e sebelisoa haholo ho hatisa le ho daea, masela, ho etsa pampiri, meriana, bohloeki, lijo, lisakerete, chefo e bolaeang likokoanyana le lintho tse timang mollo.
5. E sebelisoa e le surfactant, colloid protective agent, emulsion stabilizer bakeng sa vinyl chloride, vinyl acetate le li-emulsions tse ling, hammoho le latex tackifier, dispersant, dispersion stabilizer, joalo-joalo E sebelisoa haholo ka liphahlo, likhoele, ho daea, ho etsa pampiri, litlolo, meriana, chefo e bolaeang likokoanyana, joalo-joalo. E boetse e na le litšebeliso tse ngata indastering ea ho ntša oli le metjhini.
6. Hydroxyethyl cellulose e na le ts'ebetso ea holim'a metsi, e teteaneng, e emisang, e tlamang, e emulsifying, ho etsa filimi, ho qhalakanngoa, ho boloka metsi le ho fana ka tšireletso ho litokisetso tse tiileng tsa meriana le tsa metsi.
7. E sebelisoa e le dispersant bakeng sa ts'ebeliso ea metsi a petroleum a thehiloeng ho gel fracturing fluid, polyvinyl chloride le polystyrene. E ka boela ea sebelisoa e le emulsion thickener indastering ea pente, samente coagulation inhibitor le moemeli oa ho boloka mongobo indastering ea kaho, sesebelisoa sa glazing le sekhomaretsi sa sesepa sa meno indastering ea ceramic. E boetse e sebelisoa haholo ho hatisa le ho daea, masela, ho etsa pampiri, meriana, bohloeki, lijo, lisakerete le chefo e bolaeang likokoanyana le masimong a mang a indasteri.
Sehlahisoa tshebetso phutha
1. HEC e qhibiliha ka metsing a chesang kapa a batang, 'me ha e na mocheso o phahameng kapa o belang, e le hore e be le mefuta e mengata ea ho qhibiliha le litšoaneleho tsa viscosity, le gelation e sa chesang;
2. The non-ionic ka boeona e ka phela hammoho le mefuta e mengata e mengata ea li-polymers tse qhibilihang ka metsing, li-surfactants le letsoai, 'me ke motsoako o babatsehang oa colloidal o nang le tharollo ea dielectric e 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 phallo;
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 colloid e sireletsang e na le matla a matla ka ho fetisisa.
Mokhoa oa ho phutha
Kopana ka kotloloho tlhahiso
1. Kenya metsi a hloekileng ka nkhong e kholo e nang le motsoako o phahameng oa ho kuta.
2. Qala ho sisinyeha ka ho tsoelang pele ka lebelo le tlaase 'me butle-butle sieve cellulose ea hydroxyethyl ka har'a tharollo ka mokhoa o ts'oanang.
3. Tsoela pele ho sisinya ho fihlela likaroloana tsohle li kolobisitsoe.
4. Ebe u eketsa moemeli oa antifungal, li-additives tsa alkaline tse kang li-pigments, lithuso tse qhalakang, metsi a ammonia.
5. Hlohlelletsa ho fihlela cellulose eohle ea hydroxyethyl e qhibiliha ka ho feletseng (viscosity ea tharollo e eketseha haholo) pele u eketsa likarolo tse ling ka foromo, 'me u sila ho fihlela sehlahisoa se felile.
Karolo ea hydroxyethyl selulose ka har'a lik'hemik'hale tsa litlolo? Metsoako ea polymer e qhibilihang ka metsing e sebelisoang litlolong e arotsoe haholo ka mekhahlelo e 'meli: ea tlhaho le ea maiketsetso.
Metsoako ea tlhaho ea polymer e qhibilihang ka metsi e kenyelletsa: starch, semela sa gum, gelatin ea liphoofolo, joalo-joalo, empa boleng ha bo tsitsa, bo angoa habonolo ke boemo ba leholimo, tikoloho ea libaka, lihlahisoa tse fokolang, 'me li senyeha habonolo ke libaktheria le hlobo.
Lik'hemik'hale tsa polymer tse entsoeng ka metsi tse entsoeng ka metsi li kenyelletsa joala ea polyvinyl, polyvinylpyrrolidone, joalo-joalo, tse nang le thepa e tsitsitseng, ho halefa ha letlalo le tlaase le theko e tlaase, kahoo li nkile sebaka sa metsoako ea tlhaho ea polymer e qhibilihisang metsi 'me e fetoha mohloli o ka sehloohong oa lisebelisoa tse tala tsa colloid.
E boetse e arotsoe ka metsoako ea semi-synthetic le ea maiketsetso ea polymer e qhibilihang ka metsing.
Hangata ho sebelisoa metsoako ea semi-synthetic e qhibilihang ka metsing: methyl cellulose, ethyl cellulose, sodium carboxymethyl cellulose, hydroxyethyl cellulose, le guar gum le lihlahisoa tsa eona.
Metsoako ea polymer e qhibilihang ka metsing e sebelisoa hangata: joala ba polyvinyl, polyvinylpyrrolidone, acrylic acid polymer, joalo-joalo.
Tsena li sebelisoa litlolong e le likhomaretsi, li-thickeners, baetsi ba lifilimi, le li-emulsion stabilizers.
Nako ea poso: Nov-11-2022