Ha ho etsoa pente, viscosity ea HPMC (Hydroxypropyl Methylcellulose) e bapala karolo ea bohlokoa ho fihlelleng botsitso bo lakatsehang, ho ata, le ts'ebetso ka kakaretso.Sengoliloeng sena se ikemiselitse ho fana ka mokhoa oa mahlale oa ho fumana hore na HPMC e na le viscosity e nepahetseng bakeng sa ho etsoa ha pente, ho nahanoa ka lintlha tse kang mofuta oa pigment, mokhoa oa kopo, le litšobotsi tse lakatsehang tsa pente.
Utloisisa Karolo ea HPMC ho Etsa Pente:
HPMC e sebetsa e le tlatsetso e nang le mesebetsi e mengata mekhoeng ea pente, e kenyang letsoho taolong ea viscosity, ho boloka metsi, le thepa ea ho etsa lifilimi.Viscosity ea eona e ama ka ho toba mokhoa oa ho phalla le ho tsitsa ha pente, hammoho le bokhoni ba eona ba ho khomarela libaka tse sa tšoaneng.
Nahana ka mofuta oa Pigment le Concentration:
Li-pigment tse fapaneng li hloka maemo a fapaneng a viscosity ea HPMC ho fihlela phallo e nepahetseng le botsitso mofuteng oa pente.Ka kakaretso, li-pigments tse ngata haholo kapa tse boima, tse kang titanium dioxide kapa iron oxide, li ka hloka viscosity e phahameng ea HPMC ho boloka ho fanyeha ho tšoanang le ho thibela ho rarolla.Li-pigments tse bobebe, joalo ka lidae tsa tlhaho kapa li-pigments tse bonaletsang, li ka hloka viscosity e tlase ea HPMC ho netefatsa phallo e nepahetseng ntle le ho ama pepenene.
Etsa qeto ea Mokhoa oa Kopo le Litšobotsi tsa Pente:
Mokhoa oa kopo le litšoaneleho tsa pente tse lakatsehang le tsona li susumetsa viscosity e nepahetseng ea HPMC.Ka mohlala:
a.Kopo ea Brush / Roller: Viscosity e phahameng ea HPMC e atisa ho khethoa bakeng sa kopo ea borashe kapa rolara ho netefatsa taolo e ntle ea pente, ho fokotseha ha splattering, le ho ntlafatsa ho boloka borashe / rolara.
b.Tšebeliso ea Spray: Lower viscosity HPMC e atisa ho sebelisoa bakeng sa ts'ebeliso ea spray ho nolofatsa atomization le ho finyella esita le tšireletso.
c.Sag Resistance: Ho ntlafatsa ho hanyetsa le ho thibela pente ho rotha kapa ho thella holim'a libaka tse otlolohileng, ho ka hlokahala viscosity e phahameng ea HPMC.
Etsa liteko tsa Rheological:
Ho tseba ka mahlale a viscosity e nepahetseng ea HPMC bakeng sa ho etsoa ha pente, liteko tsa rheological li ka etsoa.Liteko tsena li lekanya ho phalla le boitšoaro ba deformation ea pente tlas'a maemo a laoloang.Liphetho li ka tataisa khetho ea viscosity ea HPMC ka ho nahana ka lintlha tse joalo ka sekhahla sa ho kuta, khatello ea maikutlo le profil ea viscosity.
Teko le ho Fetola:
Ho ipapisitsoe le liphetho tsa liteko tsa rheological, mefuta e mengata ea li-viscosity ea HPMC e ka tsejoa e le batho ba ka bang teng bakeng sa ho etsoa ha pente.Etsa liteko tse nyane ka ho etsa lisampole tsa pente tse nang le li-viscosity tse fapaneng tsa HPMC ka har'a mefuta e khethiloeng.Lekola likarolo tsa bohlokoa joalo ka thepa ea ts'ebeliso, boemo ba boemo, ho hanyetsa sag, le litšobotsi tsa ho omisa.Fetola viscosity ea HPMC kamoo ho hlokahalang ho fihlela tšebetso e lakatsehang ea pente.
Ho fumana viscosity e nepahetseng ea HPMC bakeng sa ho etsa pente ho hloka mokhoa oa saense o nahanang ka lintlha tse kang mofuta oa pigment, mokhoa oa kopo, le litšobotsi tse lakatsehang tsa pente.Ka ho utloisisa karolo ea HPMC, ho etsa liteko tsa rheological, le ho etsa liteko le ho lokisa lisampole tsa sebopeho, baetsi ba pente ba ka fihlela viscosity e nepahetseng ho ntlafatsa phallo ea pente, boemo, ho khomarela, le ts'ebetso ka kakaretso.Ke habohlokoa ho otla tekanyo e nepahetseng ho finyella litšobotsi tse lakatsehang tsa pente ha u ntse u boloka litlhoko tse sebetsang tsa mokhoa oa kopo.
