1. Iyini i-hydroxypropyl methylcellulose?
I-Hydroxypropyl methylcellulose (HPMC)i-non-ionic cellulose ether engenabuthi futhi engenabungozi, esetshenziswa kakhulu ezintweni zokwakha, ukudla, imithi, izimonyo neminye imikhakha. Inemisebenzi yokuqina, ukugcinwa kwamanzi, ukwakheka kwefilimu, ukubopha, ukuthambisa kanye nokumiswa, futhi ingancibilika emanzini ukuze kwakhe isixazululo se-viscous esisobala noma esiguquguqukayo.
2. Ukusetshenziswa okuvamile nokusetshenziswa kwe-HPMC
Inkambu yokwakha
I-HPMC ivame ukusetshenziswa ezintweni zokwakha ezifana nosimende, i-putty powder, i-tile adhesive, njll.:
Umsebenzi: Thuthukisa ukusebenza kokwakha, uthuthukise ukugcinwa kwamanzi, unwebe isikhathi esivulekile, futhi uthuthukise ukusebenza kwebhondi.
Indlela yokusebenzisa:
Engeza ngokuqondile odakeni oluxutshwe okomile, inani elinconywayo liyi-0.1% ~ 0.5% yesisindo sikasimende noma i-substrate;
Ngemuva kokuxuba ngokugcwele, engeza amanzi bese ugoqa ku-slurry.
Imboni yokudla
I-HPMC ingasetshenziswa njenge-thickener, stabilizer kanye ne-emulsifier, futhi ivame ukutholakala ekudleni okufana no-ayisikhilimu, ijeli, isinkwa, njll.:
Umsebenzi: Thuthukisa ukunambitheka, uzinzise uhlelo, futhi uvimbele ukuhlukaniswa.
Ukusetshenziswa:
Chaza emanzini abandayo, umthamo onconywayo ulungiswa phakathi kuka-0.2% no-2% ngokuya ngohlobo lokudla;
Ukushisisa noma ukunyakazisa ngomshini kungasheshisa ukuqedwa.
Imboni yezemithi
I-HPMC ivamise ukusetshenziswa ekwakhiweni kwethebhulethi yezidakamizwa, i-matrix yethebhulethi ekhishwa okuqhubekayo noma igobolondo le-capsule:
Umsebenzi: ukwakhiwa kwefilimu, ukukhishwa kwezidakamizwa okubambezelekile, nokuvikelwa komsebenzi wezidakamizwa.
Ukusetshenziswa:
Lungiselela isixazululo nge-concentration ye-1% kuya ku-5%;
Fafaza ngokulinganayo ebusweni bethebhulethi ukuze wenze ifilimu elincanyana.
Izimonyo
I-HPMCisetshenziswa njenge-thickener, i-emulsion stabilizer noma i-ejenti yokwakha ifilimu, evame ukusetshenziswa kumaski obuso, okokugcoba, njll.:
Umsebenzi: Thuthukisa ukuthungwa futhi uthuthukise umuzwa womkhiqizo.
Ukusetshenziswa:
Engeza ku-matrix yezimonyo ngokulingana futhi ugovuze ngokulinganayo;
Umthamo ngokuvamile u-0.1% kuya ku-1%, ulungiswa ngokuvumelana nezidingo zomkhiqizo.
3. Indlela yokuhlakaza ye-HPMC
I-solubility ye-HPMC ithintwa kakhulu izinga lokushisa lamanzi:
Kulula ukuhlakazeka emanzini abandayo futhi kungakha isisombululo esifanayo;
Ayincibiliki emanzini ashisayo, kodwa ingahlakazwa futhi yakhe i-colloid ngemva kokupholisa.
Izinyathelo ezithile zokuqeda:
Fafaza i-HPMC kancane emanzini, gwema ukuthulula ngokuqondile ukuvimbela ukugoqa;
Sebenzisa i-stirrer ukuxuba ngokulinganayo;
Lungisa ukugxila kwesixazululo njengoba kudingeka.
4. Izinyathelo zokuqapha ngokusebenzisa i-HPMC
Ukulawulwa komthamo: Ezimweni ezihlukene zohlelo lokusebenza, umthamo uthinta ngqo ukusebenza futhi udinga ukuhlolwa ngokuya ngezidingo.
Izimo zokubeka: Kufanele igcinwe endaweni epholile, eyomile, nengena umoya ukugwema umswakama kanye nezinga lokushisa eliphezulu.
Ukuvikelwa kwemvelo: I-HPMC iyakwazi ukubola futhi ayingcolisi imvelo, kodwa kusadingeka ukuthi isetshenziswe ngendlela evamile ukuze igweme ukumosha.
Ukuhlolwa kokuhambisana: Uma kungezwe ezinhlelweni eziyinkimbinkimbi (ezifana nezimonyo noma imithi), ukuhambisana nezinye izithako kufanele kuhlolwe.
5. Izinzuzo ze-HPMC
Non-toxic, imvelo, ukuphepha okusezingeni eliphezulu;
I-Versatility, evumelana nezimfuneko ezihlukahlukene zohlelo lokusebenza;
Ukuzinza okuhle, kungagcina ukusebenza isikhathi eside.
6. Izinkinga ezivamile nezisombululo
Inkinga ye-Agglomeration: Naka ukungezwa okuhlakazekile ngesikhathi sokusebenzisa futhi ugovuze ngokugcwele ngesikhathi esifanayo.
Isikhathi eside sokuhlakazeka: Ukulungiswa kwamanzi ashisayo noma ukunyakaziswa kwemishini kungasetshenziswa ukusheshisa ukuhlakazeka.
Ukuwohloka kokusebenza: Naka indawo yokugcina izinto ukuze ugweme umswakama nokushisa.
Ngokusebenzisa i-HPMC ngokwesayensi nangokunengqondo, izici zayo zemisebenzi eminingi zingasetshenziswa ngokugcwele ukunikeza izixazululo ezisezingeni eliphezulu zezimboni ezihlukahlukene.
Isikhathi sokuthumela: Dec-10-2024