Kajeno, re tla bua le uena ka tšebeliso e tloaelehileng ea hydroxyethyl cellulose ka pente le liaparo. Pente, ka tloaelo e bitsoang litlolo ka Chaena. Seo ho thoeng ke ho roala se koahetsoe holim'a ntho e lokelang ho sireletsoa kapa ho khabisoa, 'me e ka etsa filimi e tsoelang pele e khomaretsoeng ka thata ho ntho e lokelang ho koaheloa.
hydroxyethyl cellulose ke eng?
Hydroxyethyl cellulose (HEC), e bosoeu kapa bo mosehla bo bobebe, bo se nang monko, bo se nang chefo kapa bo tiileng, bo lokisitsoeng ke etherification ea alkaline cellulose le ethylene oxide (kapa chlorohydrin), e leng ea mofuta oa Nonionic soluble cellulose ethers. Hobane HEC e na le thepa e ntle ea ho tiisa, ho emisa, ho qhalakanya, emulsifying, ho kopanya, ho etsa filimi, ho sireletsa mongobo le ho fana ka li-colloid tse sireletsang, e 'nile ea sebelisoa haholo ho hlahloba oli, ho roala, ho haha, meriana le lijo, masela, ho etsa pampiri le li-polymers. Polymerization le likarolo tse ling.
Ho etsahalang ha hydroxyethyl cellulose e kopana le metsipenta?
Joalo ka sehlahisoa se seng sa ionic, hydroxyethyl cellulose e na le lintho tse latelang ho kenyelletsa ho tenya, ho emisa, ho tlama, ho phaphamala, ho etsa filimi, ho qhalakanya, ho boloka metsi le ho fana ka li-colloid tse sireletsang:
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, hammoho le gelling e sa chesang;
Bokhoni ba ho boloka metsi bo habeli ho feta ba methyl cellulose, 'me bo na le taolo e ntle ea phallo;
Ha ho bapisoa le methyl cellulose e tsejoang le hydroxypropyl methyl cellulose, bokhoni ba ho qhalakanngoa ba HEC ke bona bo bobe ka ho fetisisa, empa matla a tšireletso a colloid ke a matla ka ho fetisisa;
Ha e na ionic 'me e ka phela hammoho le mefuta e mengata e mengata ea li-polymers tse qhibilihang metsing, li-surfactants le matsoai. Ke colloidal thickener e babatsehang bakeng sa tharollo ea electrolyte e phahameng haholo.
Mokhoa oa ho sebelisa hydroxyethyl cellulose? Joang ho e eketsa?
Eketsa ka ho toba nakong ea tlhahiso - mokhoa ona o bonolo ka ho fetisisa 'me o nka nako e fokolang.
Eketsa metsi a hloekileng ka har'a vat e nang le blender e phahameng ea ho kuta. Qala ho sisinya o sa kgaotse ka lebelo le tlase mme butle o sefa hydroxyethyl cellulose ka ho lekana ka hara tharollo. Tsoela pele ho hlohlelletsa ho fihlela likaroloana tsohle li kolobisitsoe. Ebe u eketsa li-preservatives le li-additives tse fapaneng. Tse kang li-pigments, lithuso tsa ho qhala, metsi a ammonia, joalo-joalo Hlohlelletsa ho fihlela cellulose eohle ea hydroxyethyl e qhibiliha ka ho feletseng (viscosity ea tharollo e eketseha haholo) pele o eketsa likarolo tse ling ka foromo ho phethahatsa karabelo.
Ho hlomelloa ka joala ba 'm'e.
Ke ho lokisetsa joala ba 'm'e ka motsoako o phahameng pele, ebe o e eketsa sehlahisoa. Molemo oa mokhoa ona ke hore o na le phetoho e kholoanyane 'me e ka kenyelletsoa ka ho toba sehlahisoa se phethiloeng, empa se tlameha ho bolokoa hantle. Mehato ea mokhoa ona e tšoana le mehato e mengata ea Method 1; phapang ke hore ha ho hlokahale hore ho be le agitator e phahameng, 'me ke li-agitator tse ling feela tse nang le matla a lekaneng a ho boloka cellulose ea hydroxyethyl ka mokhoa o ts'oanang e qhalakantsoeng ka tharollo e ka sebelisoa,' me e tsoele pele ho Hlohlelletsa ho fihlela e qhibiliha ka ho feletseng ka tharollo ea viscous. Leha ho le joalo, ho lokela ho hlokomeloa hore moriana oa antifungal o tlameha ho eketsoa ho joala ba 'mè kapele kamoo ho ka khonehang.
Kaha selulose ea hydroxyethyl e entsoeng ka holim'a metsi ke phofo kapa fibrous solid, Shandong Heda o u hopotsa hore u ele hloko lintlha tse latelang ha u lokisetsa joala ba hydroxyethyl cellulose:
(1) Pele le ka mor'a ho eketsa hydroxyethyl cellulose, e tlameha ho bolokoa e tsosoa ho fihlela tharollo e hlakile ka ho feletseng le e hlakileng.
(2) E tlameha ho hloekisoa butle-butle ka har'a moqomo oa ho kopanya, 'me u se ke ua kopanya ka ho toba hydroxyethyl cellulose le hydroxyethyl cellulose ka har'a moqomo oa ho kopanya ka bongata kapa ka mokhoa oa li-lumps le libolo.
(3) Mocheso oa metsi le pH ea metsi li na le kamano e totobetseng le ho qhibiliha ha hydroxyethyl cellulose, kahoo tlhokomelo e khethehileng e lokela ho lefshoa ho eona.
(4) Le ka mohla u se ke ua kenya lintho tse ling tsa alkaline motsoakong pele phofo ea hydroxyethyl cellulose e kolobisoa ka metsi. Ho phahamisa pH feela ka mor'a ho kolobisa ho tla thusa ho qhibiliha.
(5) Ho fihlela moo ho ka khonehang, eketsa moemeli oa antifungal esale pele.
(6) Ha u sebelisa high-viscosity hydroxyethyl cellulose, mahloriso a joala ba 'mè ha aa lokela ho ba holimo ho 2.5-3% (ka boima ba' mele), ho seng joalo joala ba 'mè bo thata ho bo tšoara.
Nako ea poso: Nov-03-2022