Hydroxyethyl cellulosee sebelisoa haholo penteng ea latex, pente ea emulsion & coatings, mokhoa oa ho sebelisa Hydroxyethyl cellulose penteng ea latex?
1. Eketsa ka ho toba ho pigment ea abrasive
Mokhoa ona ke o bonolo ka ho fetisisa 'me o nka nako e khutšoanyane.Mehato e qaqileng ke e latelang:
(1) Eketsa metsi a hloekisitsoeng a loketseng ka har'a vat ea agitator e phahameng haholo (ka kakaretso, ethylene glycol, moemeli oa ho kolobisa le moemeli oa ho etsa filimi e kenngoa ka nako ena)
(2) Qala ho sisinyeha ka lebelo le tlaase 'me butle-butle eketsa hydroxyethyl cellulose
(3) tsoela pele ho sisinya ho fihlela likaroloana tsohle li kolobile
(4) Ho eketsa hlobo inhibitor, pH adjuster, joalo-joalo.
(5)Hlohlelletsa ho fihlela cellulose eohle ea hydroxyethyle qhibiliha ka ho feletseng (viscosity ea tharollo e eketsehile haholo) pele o eketsa likarolo tse ling ka ho hlophisoa le ho sila ho fihlela lacquer e thehoa.
2. hlomelloa ka joala ba 'm'e
Mokhoa ona o qala ho hlomelloa ka bongata bo bongata ba tahi ea 'm'e ebe o kenngoa penteng ea latex.Molemo oa mokhoa ona ke hore o na le phetoho e kholoanyane 'me e ka kenyelletsoa ka ho toba penteng e phethiloeng, empa e tlameha ho bolokoa hantle.Mehato le mekhoa e tšoana le mehato (1) - (4) ho Method 1, ntle le hore moferefere ha o hlokehe ho ba holimo, 'me ho sebelisoa feela sekontiri se nang le matla a lekaneng ho boloka likhoele tsa hydroxyethyl li hasane ka mokhoa o ts'oanang tharollong. .ka khona.Tsoela pele ho hlohlelletsa ho fihlela e qhibiliha ka ho feletseng ka tharollo ea viscous.Ho lokela ho hlokomeloa hore mold inhibitor e tlameha ho kenngoa ho joala ba 'mè kapele kamoo ho ka khonehang.
3. ka motoho
Kaha motsoako oa tlhaho ke motsoako o fokolang oa hydroxyethyl cellulose, metsoako ena ea tlhaho e ka sebelisoa ho fana ka motoho.Li-solvents tse sebelisoang ka ho fetisisa tse kang ethylene glycol, propylene glycol, le li-formers tsa lifilimi (tse kang hexane kapa diethylene glycol butyl acetate), metsi a leqhoa le tsona ke motsoako o fokolang, kahoo metsi a leqhoa a atisa ho sebelisoa hammoho le lino tse tahang E na le lisebelisoa. motoho.Selulose se kang motoho sa hydroxyethyl se ka eketsoa ka ho toba penteng.Hydroxyethyl cellulose e kolobisitsoe ka ho lekaneng ka motoho.Ha e kenngoa penteng, e qhibiliha hang-hang 'me e teteaneng.Ka mor'a ho eketsoa, ho hlokahala hore u tsoele pele ho hlohlelletsa ho fihlela cellulose ea hydroxyethyl e qhibiliha ka ho feletseng ebile e le homogeneous.Ka kakaretso, motoho o kopantsoe le karolo ea motsoako oa tlhaho kapa metsi a leqhoa le karolo ea hydroxyethyl cellulose.Ka mor'a metsotso e ka bang 5 ho isa ho e 30, hydroxyethyl cellulose e etsoa hydrolyzed 'me e phahama ka mokhoa o tsotehang.Ka kakaretso, mongobo oa metsi lehlabula o phahame haholo 'me ha oa lokela ho sebelisoa bakeng sa motoho.
4. Litlhokomelo ha u sebelisa joala ba 'mè ba hydroxyethyl cellulose
Ho tloha ha hydroxyethyl cellulose(HEC)ke granule e phekotsoeng, ho bonolo ho sebetsana le ho qhibiliha ka metsing ha feela lintlha tse latelang li hlokomeloa.
(1) Pele le ka mor'a ho eketsoa ha hydroxyethylcellulose, ho hlohlelletsa ho tlameha ho tsoela pele ho fihlela tharollo e hlakile ka ho feletseng le e hlakileng.
(2) E tlameha ho sefshoa butle-butle ka tanka e kopanyang.U se ke ua eketsa cellulose ea hydroxyethyl e entsoeng ka boloko le sebopeho sa spherical ka ho toba ka tanka ea ho kopanya.
(3) Thempereichara ea metsi le boleng ba pH metsing li na le kamano e kholo le ho qhibiliha ha hydroxyethyl cellulose, 'me tlhokomelo e khethehileng e tlameha ho nkoa.
(4) U se ke ua kenya lintho tse ling tsa alkaline motsoakong pele phofo ea hydroxyethyl cellulose e kolobisoa ke metsi.Ho eketsa pH ka mor'a ho inela ho thusa ho qhibiliha.
(5) Kenya li-mold inhibitors kapele kamoo ho ka khonehang.
(6) Ha u sebelisa selulose e phahameng ea viscosity hydroxyethyl, mahloriso a joala a 'mè ha aa lokela ho ba holimo ho 2.5-3% (ka boima ba' mele), ho seng joalo ho thata ho tšoara joala ba 'mè.
Nako ea poso: Jan-03-2019