Isetshenziswa kanjani i-hydroxypropyl methylcellulose kanye nezinyathelo zokuphepha

1. Isingeniso se-hydroxypropyl methylcellulose

I-Hydroxypropyl methylcellulose (HPMC)i-non-ionic cellulose ether eyenziwe ngezinto ze-polymer zemvelo ngokuguqulwa kwamakhemikhali. Isetshenziswa kakhulu ekwakhiweni, kwezemithi, ekudleni, kwezimonyo, ekugcokeni nakwezinye izinkambu, futhi inemisebenzi eminingi njengokujiya, ukugcinwa kwamanzi, ukwakheka kwefilimu, nokunamathela.

2. Isetshenziswa kanjani i-hydroxypropyl methylcellulose

Ukuncibilika kwamanzi abandayo
I-AnxinCel®HPMC ingahlakazwa ngokuqondile emanzini abandayo, kodwa ngenxa ye-hydrophilicity yayo, kulula ukwenza izigaxa. Kunconywa ukuthi ufafaze kancane i-HPMC emanzini abandayo anyakaziswayo ukuze uqinisekise ukuhlakazeka okufanayo futhi ugweme ukuhlangana.

Ukuncibilika kwamanzi ashisayo
Ngemuva kokumanzisa ngaphambili i-HPMC ngamanzi ashisayo, engeza amanzi abandayo ukuze avuvukele ukwenza isisombululo esifanayo. Le ndlela ifanele i-HPMC ene-viscosity ephezulu.

Ukuxuba impushana eyomile
Ngaphambi kokusebenzisa i-HPMC, ingaxutshwa ngokulinganayo nezinye izinto ezingavuthiwe eziyimpushana, bese inyakaziswa futhi ichithwe ngamanzi.

Imboni yezokwakha
Ku-mortar kanye ne-putty powder, inani elingeziwe le-HPMC livame ukuba ngu-0.1% ~ 0.5%, elisetshenziselwa kakhulu ukuthuthukisa ukugcinwa kwamanzi, ukusebenza kokwakhiwa kanye nokusebenza okuphikisayo.

Imboni yezemithi
I-HPMC ivamise ukusetshenziswa ekwakhiweni kwethebulethi kanye ne-matrix yokukhishwa okuqhubekayo, futhi umthamo wayo kufanele ulungiswe ngokuya ngefomula ethile.

Imboni yokudla
Uma isetshenziswa njenge-thickener noma i-emulsifier ekudleni, umthamo kufanele uhambisane nezindinganiso zokuphepha kokudla, ngokuvamile u-0.1%~1%.

Izembatho
Uma i-HPMC isetshenziswa kuma-coatings asekelwe emanzini, ingathuthukisa ukujiya nokuhlakazeka kwento enamathelayo futhi ivimbele imvula ye-pigment.

Izimonyo
I-HPMC isetshenziswa njengesiqinisi kuzimonyo ukuze kuthuthukiswe ukuthinta kanye ne-ductility yomkhiqizo.

3. Izinyathelo zokuqapha ngokusebenzisa i-hydroxypropyl methylcellulose

Isikhathi sokuqedwa nokulawula izinga lokushisa
I-HPMC ithatha isikhathi esithile ukuze incibilike, ngokuvamile imizuzu engama-30 ukuya emahoreni angu-2. Ukushisa okuphezulu kakhulu noma okuphansi kakhulu kuzothinta izinga lokuchithwa, futhi izinga lokushisa elifanele nezimo ezinyakazayo kufanele zikhethwe ngokuya ngesimo esithile.

Gwema i-agglomeration
Uma ungeza i-HPMC, kufanele ihlakazwe kancane futhi inyakaziswe kahle ukuvimbela ukuhlangana. Uma i-agglomeration yenzeka, idinga ukushiywa yodwa isikhathi esithile futhi inyakaze ngemva kokuvuvukala ngokuphelele.

Umthelela womswakama wendawo
I-HPMC iyazwela kumswakama futhi ijwayele ukumunca umswakama kanye nokuhlangana endaweni enomswakama ophezulu. Ngakho-ke, ukunakwa kufanele kukhokhwe ekomeni kwendawo yokugcina impahla futhi ukupakishwa kufanele kuvalwe.

Ukumelana ne-Acid ne-alkali
I-HPMC izinzile uma kuqhathaniswa nama-acids nama-alkali, kodwa ingehlisa izinga endaweni ye-asidi eqinile noma ye-alkali, kuphazamise ukusebenza kwayo. Ngakho-ke, izimo ze-pH ezimbi kakhulu kufanele zigwenywe ngangokunokwenzeka ngesikhathi sokusetshenziswa. 

Ukukhetha amamodeli ahlukahlukene
I-HPMC inamamodeli ahlukahlukene (afana ne-viscosity ephezulu, i-viscosity ephansi, ukuqedwa okusheshayo, njll.), nokusebenza kwawo nokusetshenziswa kwehlukile. Lapho ukhetha, imodeli efanelekile kufanele ikhethwe ngokuvumelana nesimo esithile sohlelo (njengezinto zokwakha, imithi, njll.) kanye nezidingo.

Inhlanzeko nokuphepha
Uma usebenzisa i-AnxinCel®HPMC, okokuvikela kufanele kugqokwe ukugwema ukuhogela uthuli.

Uma isetshenziswa ekudleni nasemithini, kumele ihambisane nemithethonqubo kanye namazinga emboni efanele.

Ukuhambisana nezinye izithasiselo

Uma ixubene nezinye izinto kufomula, kufanele kuqashelwe ukuhambisana kwayo ukuze kugwenywe imvula, ukuminyana noma okunye ukusabela okungekuhle.

4. Isitoreji kanye nezinto zokuhamba

Isitoreji
I-HPMCkufanele igcinwe endaweni epholile, eyomile, ukugwema izinga lokushisa eliphezulu kanye nomswakama. Imikhiqizo engasetshenzisiwe idinga ukuvalwa.

Ezokuthutha
Ngesikhathi sokuthutha, kufanele ivikelwe emvuleni, umswakama kanye nokushisa okuphezulu ukugwema ukulimala emaphaketheni.

IHydroxypropyl methylcellulose iwumsebenzi wamakhemikhali oguquguqukayo odinga ukuhlakazeka okungokwesayensi nokunengqondo, ukungezwa kanye nokugcinwa kwezinto ezisetshenziswayo. Naka ukuze ugweme i-agglomeration, lawula izimo zokuhlakazeka, bese ukhetha imodeli efanele kanye nesilinganiso ngokuya ngezimo zohlelo lokusebenza ezihlukene ukuze ukwandise ukusebenza kwayo. Ngesikhathi esifanayo, amazinga embonini kufanele alandelwe ngokuqinile ukuze kuqinisekiswe ukusetshenziswa okuphephile nokusebenzayo kwe-HPMC.