IHydroxypropyl methylcellulose (HPMC) yongezelelo oluguquguqukayo olusetyenziswa ngokuqhelekileyo kwimixube yepeyinti ukuphucula iimpawu ezahlukeneyo, kuquka ukubambelela. Indima yayo ekwandiseni ukuncamathelwa kwepeyinti inamacala amaninzi kwaye ixhomekeke kwiindlela ezininzi:
Uzinzo lweBinder: I-HPMC isebenza njengesizinzisi kwisibophelelo sepeyinti, esiqhele ukuba yipolima efana ne-acrylic okanye i-latex. Ngokuphucula ukuzinza kwe-binder, i-HPMC iqinisekisa ukusabalalisa okufanayo kunye nokubambelela kwi-binder kwi-substrate surface.
I-Rheology ephuculweyo: I-Rheology ibhekisa kwindlela yokuziphatha kwepeyinti. I-HPMC ilungisa iimpawu zerheological zepeyinti, ezikhokelela ekuhambeni okungcono kunye neempawu zokulinganisa. Oku kuhamba okuphuculweyo kuvumela ukuba ipeyinti isasazeke ngokulinganayo phezu kwe-substrate, ikhuthaza ukunamathela okungcono.
Ukumanzisa umphezulu: I-HPMC inokunciphisa ukuxinana komphezulu wepeyinti, iququzelele ukumanzisa okungcono komphezulu we-substrate. Ukumanzisa okuphuculweyo kuqinisekisa unxibelelwano olusondeleyo phakathi kwepeyinti kunye ne-substrate, eyimfuneko ekunamatheleni okuqinileyo.
Ukuqulunqwa kwefilimu: Ngexesha lokusetyenziswa kwepeyinti, i-HPMC inceda ekuqulunqweni kwefilimu eqhubekayo kunye neyunifomu kwi-substrate surface. Le filimu isebenza njengomqobo, ukuthintela umswakama kunye nezinye izinto zokusingqongileyo ekuphazamiseni ukunamathela kwepeyinti.
Ukuncitshiswa kwe-Sagging kunye ne-Dripping: I-HPMC inika iipropati ze-thixotropic ukupeyinta, oku kuthetha ukuba iyancipha i-viscous phantsi koxinzelelo lwe-shear (njengexesha lesicelo) kwaye ibuyele kwi-viscosity yayo yangaphambili xa uxinzelelo lususiwe. Le ndlela yokuziphatha ye-thixotropic inciphisa ukugoba kunye nokuvuza kwepeyinti, iqinisekisa ukuba ihlala kwindawo eyaneleyo ukuba ibambelele ngokufanelekileyo.
Ubambiswano olomeleziweyo: I-HPMC inokuphucula ukudityaniswa kweefilimu zepeyinti, izenze zixhathise ngakumbi ukuqhekeka, ukuxobula, kunye ne-delamination. Olu manyano oluphuculweyo lunegalelo ekomelezeni kwexesha elide lepeyinti kunye nokukwazi kwayo ukugcina ukubambelela phantsi kweemeko ezahlukeneyo zokusingqongileyo.
Ukuhambelana: I-HPMC iyahambelana noluhlu olubanzi lweepeyinti zepeyinti kunye nezinye izongezo, ezivumela ukufakwa lula kwiintlobo ezahlukeneyo zepeyinti ngaphandle kokunciphisa ukusebenza. Ukuguquguquka kwayo kwenza ukuba kube lukhetho oludumileyo lokuphucula ukubambelela kwiinkqubo ezahlukeneyo zepeyinti.
I-HPMC idlala indima ebalulekileyo ekwandiseni ukuncamathelwa kwepeyinti ngokuphucula uzinzo lwe-binder, ukuguqula irheology, ukukhuthaza ukumanzisa komphezulu, ukuququzelela ukwakheka kwefilimu efanayo, ukunciphisa ukuntywila kunye nokuvuza, ukomeleza ubumbano, kunye nokuqinisekisa ukuhambelana namanye amacandelo epeyinti. Iimpawu zayo ezinomsebenzi omninzi zenza ukuba ibe sisongezo esiyimfuneko ekufezekiseni ukunamathela kwepeyinti eyomeleleyo kunye neyomeleleyo kwizicelo ezahlukeneyo.
Ixesha lokuposa: May-08-2024