I-Hydroxypropyl Methylcellulose (HPMC) yi-ether engeyona eye-cellulose ether esetshenziswa kabanzi ezintweni zokwakha, umuthi, ukudla, amakhemikhali nsuku kanye nezinye izinkambu.
1. Izici eziyisisekelo
I-Solubinity: I-HPMC iyancibilika emanzini abandayo kanye nezinye izixazululo ze-organic, futhi ikhambi lalo lamanzi alithathi hlangothi noma buthaka-alkali.
Ukuqina: I-HPMC inekhono elihle kakhulu lokuqina futhi lingathuthukisa ukubonwa kanye ne-thixotropy yezinto ezibonakalayo.
Ukugcinwa kwamanzi: Kunganweba ngempumelelo isikhathi samanzi okuhwamuka futhi kuthuthukise ukusebenza kokwakha.
Impahla eyakha ifilimu: I-HPMC ingakha ifilimu esobala futhi eguquguqukayo.
I-Thermogelation: Izokwenza i-gel ngemuva kokushisa emazingeni okushisa athile bese ibuyela kumbuso oncibilikisiwe ngemuva kokupholisa.
2. Ukusebenzisa kanjani
Izinyathelo zokuchithwa
I-HPMC idinga ukuhlukaniswa kahle lapho isetshenziselwa ukujabulisa ngokugcwele endimeni yayo:
Ukuchithwa kwamanzi okubandayo:
Fafaza i-HPMC kancane emanzini abandayo ukugwema ukuqondisa i-agglomeration.
Engeza ngenkathi kuvusa ukwakheka kwengxube ehlakazekile ngokufanayo.
Ngemuva kokuma isikhathi esithile (cishe imizuzu engama-30 kuya emahoreni ambalwa), i-HPMC izoncibilika kancane ukwakha isixazululo esibonakalayo.
Ukuchithwa kwamanzi ashisayo:
Hlanganisa i-HPMC ngamanye amanzi ashisayo (ngenhla kwama-70 ° C) bese uvuse ukusabalalisa.
Ngemuva kokupholisa, engeza amanzi abandayo bese uqhubeka uvuselelwa kuze kuchithwe ngokuphelele.
Le ndlela ilungele izimo lapho isisombululo kufanele silungiselelwe khona ngokushesha.
Ukulawulwa kokuhlushwa
Ngokusho kokusetshenziswa okuqondile, ukugcwaliseka kwesisombululo se-HPMC kufanele kulungiswe kahle:
Inkambu Yokwakha: Imvamisa ilungiselelwe njenge-0.1% ~ 1% Isixazululo samanzi, esetshenziselwa ikakhulukazi ama-adhesives, i-putty powder, njll.
Inkambu yokudla: Ukusetshenziswa ngokuvamile kungu-0.05% ~ 0.5%, ozimisele ngokuya ngemithetho esele yokudla.
I-Medical Field: I-HPMC iyi-excipont yamathebhulethi ezidakamizwa, futhi inani lokungezwa lidinga ukulawulwa ukuze kuqinisekiswe umphumela wokukhishwa kwezidakamizwa.
Sebenzisa ukucwengwa kwensimu
Imboni Yokwakha:
Ku-putty powder kanye nodaka, qala ukuncibilikisa i-HPMC emanzini, bese uyixuba ngokulinganayo nezinye izakhi ngokulingana.
Uma isetshenziswa ku-tile adhesive, i-hpmc ingathuthukisa ukwakheka kwe-viscosity kanye ne-anti-slip Properties.
Inkambu yezemithi:
Ingasetshenziswa ngokuqondile ukuhlanganisa amaphilisi wezemithi ukuthuthukisa ukusebenza kokulawulwa kokulawulwa.
Insimu yamakhemikhali yansuku zonke:
Isetshenziswa njenge-smicner noma i-emulsifier stabilizer in detegents kanye nabahlanza ubuso.
Inkambu yokupenda:
Isetshenziswa njengesikhulu kupende we-latex ukuvikela ukufudumala kwe-pigment.
3. Ukuqapha
Ithonya lokushisa: I-solubity ye-HPMC ihlobene kakhulu nokushisa. Izinga lokushisa eliphakeme lingadala ukubheja, ngakho-ke kunconywa ukusebenza emanzini abandayo ukugwema ukuhlangana okusheshayo.
Indlela yokuvuselela: vusa kancane futhi ngokulinganayo ukugwema ama-bubble ngokweqile okubangelwa ukushukumisa okunamandla.
Izimo Zokugcina:
Gwema Ukuchayeka Ezindaweni Ezinomswakama.
Gwema ukuxhumana nama-acid aqinile, ama-alkali aqinile noma ama-oxidants.
Ezokuphepha: I-HPMC ayiyona into enobuthi futhi ayicasuli, kepha imishini yokuvikela kufanele igqokwe ngesikhathi sokusebenza kwe-powder ukugwema ukuphefumula noma ukuxhumana namehlo.
Ngokuchithwa okufanele futhi usebenzise, i-hydroxypropylm methylcellulose ingadlala ukuqina kwayo okuhle, ukugcinwa kwamanzi, ukunamathela kanye nemiphumela yokuzinza emikhakheni ehlukahlukene.
Isikhathi sePosi: Feb-15-2025