Xa kusenziwa ipeyinti, i-viscosity ye-HPMC (Hydroxypropyl Methylcellulose) idlala indima ebalulekileyo ekuphumezeni ukungaguquguquki okufunekayo, ukusasazeka, kunye nokusebenza ngokubanzi.Eli nqaku lijolise ekuboneleleni ngendlela yenzululwazi ukumisela i-viscosity ye-HPMC efanelekileyo yokwakhiwa kwepeyinti, ngokuqwalasela izinto ezifana nohlobo lwe-pigment, indlela yesicelo, kunye neempawu zepeyinti ezifunwayo.
Qonda indima ye-HPMC kuYilo lwePeyinti:
I-HPMC isebenza njengesongezo esisebenzayo kwizinto ezininzi zokwenziwa kwepeyinti, igalelo kulawulo lwe-viscosity, ukugcinwa kwamanzi, kunye neepropati zokwenza ifilimu.I-viscosity yayo ichaphazela ngokuthe ngqo ukuhamba kunye neempawu zokulinganisa zepeyinti, kunye nokukwazi ukunamathela kwiindawo ezahlukeneyo.
Qwalasela uhlobo lwePigment kunye nokuQikelela:
Ii-pigments ezahlukeneyo zifuna amanqanaba ahlukeneyo e-viscosity ye-HPMC ukufezekisa ukusasazeka kunye nokuzinza ekubunjweni kwepeyinti.Ngokubanzi, i-pigments egxininiswe kakhulu okanye enzima, njenge-titanium dioxide okanye i-iron oxide, inokufuna i-viscosity ephezulu ye-HPMC ukugcina ukumiswa okufanayo kunye nokuthintela ukuzinza.Imibala ekhanyayo, efana nedayi ephilayo okanye i-pigments ebonakalayo, inokufuna i-viscosity ephantsi ye-HPMC ukuqinisekisa ukusasazwa okufanelekileyo ngaphandle kokuchaphazela ukungafihli.
Misela iNdlela yokuSebenza kunye neempawu zePeyinti:
Indlela yesicelo kunye neempawu zepeyinti ezifunwayo nazo zinefuthe kwi-viscosity ye-HPMC efanelekileyo.Umzekelo:
a.I-Brush / Roller Application: I-viscosity ephezulu ye-HPMC idla ngokuthandwa kwi-brush okanye i-roller application ukuqinisekisa ulawulo olungcono lwepeyinti, i-splattering eyanciphayo, kunye nokuphuculwa kokugcinwa kwebrashi / i-roller.
b.Isicelo sokutshiza: I-HPMC ye-viscosity esezantsi idla ngokusetyenziswa kwisicelo sokutshiza ukwenza lula i-atomization kunye nokufikelela ngokulinganayo.
c.Ukumelana ne-Sag: Ukuphucula ukuxhathisa kwe-sag kunye nokuthintela ipeyinti ukuba ithontsize okanye igxumeke kwindawo ethe nkqo, i-viscosity ephezulu ye-HPMC inokufuneka.
Qhuba uVavanyo lweRheological:
Ukumisela ngokwenzululwazi eyona viscosity ye-HPMC yokwenziwa kwepeyinti, iimvavanyo ze-rheological zinokuqhutywa.Ezi mvavanyo zilinganisa ukuhamba kunye nokuziphatha kokuguqulwa kwepeyinti phantsi kweemeko ezilawulwayo.Iziphumo zinokukhokela ukukhethwa kwe-viscosity ye-HPMC ngokuqwalasela izinto ezifana nesantya sokucheba, uxinzelelo lwe-chear, kunye neeprofayili ze-viscosity.
Uvavanyo kunye noLungiso:
Ngokusekelwe kwiziphumo zovavanyo lwe-rheological, uluhlu lwe-viscosities ye-HPMC lunokuchongwa njengabaviwa abanokuthi baqulunqe ipeyinti.Ukuqhuba iimvavanyo ezincinci ngokuqulunqa iisampuli zepeyinti ezine-viscosities ze-HPMC ezahlukileyo phakathi koluhlu oluchongiweyo.Vavanya iiparamitha eziphambili ezifana neempawu zesicelo, ukulinganisa, ukuxhathisa kwe-sag, kunye neempawu zokumisa.Lungisa i-viscosity ye-HPMC njengoko kufuneka ukuphumeza umsebenzi ofunekayo wepeyinti.
Ukumisela eyona viscosity ye-HPMC yokwenziwa kwepeyinti kufuna indlela yenzululwazi eqwalasela izinto ezifana nodidi lwebala, indlela yokusetyenziswa, kunye neempawu zepeyinti ezifunwayo.Ngokuqonda indima ye-HPMC, ukwenza iimvavanyo ze-rheological, kunye nokuvavanya kunye nokuhlengahlengisa iisampuli zokuyila, abavelisi bepeyinti banokufikelela i-viscosity efanelekileyo yokuphucula ukuhamba kwepeyinti, ukulinganisa, ukunamathela, kunye nokusebenza ngokubanzi.Kubalulekile ukubetha ibhalansi efanelekileyo ukufezekisa iimpawu zepeyinti ezifunwayo ngelixa ugcina iimfuno eziphathekayo zendlela yesicelo.
