Ekubeni iipropati ze-hydroxypropyl methylcellulose zifana nezinye i-ethers ezinyibilikayo zamanzi, zingasetyenziselwa kwiingubo ze-emulsion kunye nezixhobo zokugubungela i-resin e-soluble yamanzi njenge-agent-forming agent, i-thickener, i-emulsifier kunye ne-stabilizer, njl., enika ifilimu yokugqoka ifilimu. ukuxhathisa okulungileyo kwe-abrasion. I-homogeneous coating kunye ne-adhesion, kunye nokuphuculwa koxinzelelo lomphezulu, ukuzinza kwi-acids kunye neziseko, kunye nokuhambelana ne-pigment yensimbi.
Ekubeni i-HPMC inendawo yejeli ephezulu kune-MC, ikwaxhathisa ngakumbi kuhlaselo lwebhaktheriya kunezinye ii-cellulose ethers, kwaye ngaloo ndlela inokusetyenziswa njenge-agent etyebisayo yokwaleka kwe-emulsion enamanzi. I-HPMC inozinzo oluhle lokugcinwa kwe-viscosity kunye ne-dispersibility yayo ebalaseleyo, ngaloo ndlela i-HPMC ifanelekile ngokukodwa njenge-dispersant kwiingubo ze-emulsion.
Ukusetyenziswa kwe-hydroxypropyl methyl cellulose kwishishini lokugquma kulandelayo.
1.various viscosity HPMC uqwalaselo ipeyinti ukuxhathisa banxibe, ukumelana lobushushu eliphezulu, ingcaciso anti-bacterial, ukuxhathisa ukuhlamba kunye nokuzinza iiasidi kunye neziseko ngcono; inokusetyenziswa kwakhona njengepeyinti yepeyinti equkethe i-methanol, i-ethanol, i-propanol, i-isopropyl alcohol, i-ethylene glycol, i-acetone, i-methyl ethyl ketone okanye i-diketone alcohol thickener; I-HPMC eyenziwe iingubo zokwaleka zinee-abrasion ezimanzi ezibalaseleyo; I-HPMC kune-HEC kunye ne-EHEC kunye ne-CMC njenge-HPMC inesiphumo esingcono kune-HEC kunye ne-EHEC kunye ne-CMC njengento yokuqinisa ipeyinti.
2.I-highly substituted hydroxypropyl methyl cellulose inokumelana okungcono nokuhlaselwa kwebhaktheriya kunokutshintshwa okuphantsi, kwaye inozinzo olungcono lwe-viscosity kwi-polyvinyl acetate thickeners. Ezinye i-cellulose ethers zigcinwe ngenxa yokutshatyalaliswa kwekhonkco ye-cellulose ether kwaye yenza i-viscosity yokugqoka iyancipha.
3.ipeyinti yepeyinti inokuba yi-HPMC enyibilikayo emanzini (apho i-methoxy yi-28% ukuya kwi-32%, i-hydroxypropoxy yi-7% ukuya kwi-12%), i-dioxymethane, i-toluene, iparafini, i-ethanol, i-methanol configuration, iya kufakwa kwindawo ethe tye, kunye i-viscosity efunekayo kunye nokuguquguquka. Le peyinti yokuhlutha ipeyinti isusa iipeyinti zokutshiza eziqhelekileyo, ivanishi, i-enamels, kunye ne-epoxy esters ethile, i-epoxy amides, i-catalyzed epoxy amides, i-acrylates, njl njl. Iipeyinti ezininzi zinokuxotyulwa kwimizuzwana embalwa, ezinye iipeyinti zifuna i-10 ~ 15min okanye ngaphezulu, oku. ipeyinti yepeyinti ifanelekile ngokukodwa kwiindawo zokhuni.
I-4.Ipeyinti ye-emulsion yamanzi inokuqulunqwa ngamacandelo angama-100 e-inorganic okanye i-organic pigment, i-0.5 ~ 20 inxalenye ye-alkyl cellulose e-soluble yamanzi okanye i-hydroxyalkyl cellulose kunye ne-0.01 ~ 5 i-polyoxyethylene ether okanye i-ester ester. Ngokomzekelo, i-colorant ifunyenwe ngokuxuba iingxenye ze-1.5 ze-HPMC, iinxalenye ze-0.05 ze-polyethylene glycol alkyl phenyl ether, i-99.7 ye-titanium dioxide kunye ne-0.3 ye-carbon black. Umxube ke uxutywe ngamalungu angama-100 e-50% eqinileyo ye-polyvinyl acetate ukuze ufumane i-coating, kwaye akukho mahluko phakathi kwefilimu eyomileyo yokugquma eyenziwe ngokuyigalela kwiphepha elishinyeneyo kwaye uyihlikihle kancinci ngebrashi.
Ixesha lokuposa: May-20-2022