Indima ebalulekileyo ye-HPMC kudaka oluxutyiweyo olumanzi ikakhulu inemiba mithathu ilandelayo:
1. I-HPMC inomthamo obalaseleyo wokugcina amanzi.
2. Impembelelo ye-HPMC kwi-consistency kunye ne-thixotropy yodaka oluxutyiweyo olumanzi.
3. Intsebenziswano phakathi kweHPMC kunye nesamente.
Ukugcinwa kwamanzi yintsebenzo ebalulekileyo ye-HPMC, kwaye ikwayintsebenzo ukuba abaninzi abavelisi bodaka olumanzi-umxube banike ingqalelo.
Isiphumo sokugcina amanzi se-HPMC sixhomekeke kwisantya sokufunxa kwamanzi somaleko wesiseko, ukubunjwa kodaka, ukutyeba kodaka, imfuno yamanzi yodaka, kunye nexesha lokumiselwa kwezinto zokumisela.
HPMC - ukugcinwa kwamanzi
Ukuphakama kobushushu bejeli ye-HPMC, kokukhona ugcino lwamanzi lungcono.
Izinto ezichaphazela ukugcinwa kwamanzi odaka oluxutyiweyo olumanzi yi-HPMC viscosity, isixa sokongeza, ukulunga kwamasuntswana kunye nobushushu bokusebenzisa.
I-Viscosity yiparameter ebalulekileyo yokusebenza kwe-HPMC. Kwimveliso efanayo, iziphumo ze-viscosity ezilinganiswe ngeendlela ezahlukeneyo ziyahluka kakhulu, kwaye ezinye ziphinda ziphindwe kabini umahluko. Ngoko ke, xa uthelekisa i-viscosity, kufuneka yenziwe phakathi kweendlela ezifanayo zokuvavanya, kubandakanywa ubushushu, i-spindle, njl.
Nangona kunjalo, ukuphakama kwe-viscosity kunye nobukhulu be-molecular weight ye-HPMC, ukuhla okuhambelanayo kwi-solubility yayo kuya kuba nefuthe elibi kumandla kunye nokusebenza kokwakhiwa kodaka. Okukhona i-viscosity iphezulu, kokukhona kucaca ngakumbi ukutyeba kodaka, kodwa kungalingani. Ukuphakama kwe-viscosity, i-viscous yodaka olumanzi, olubonisa ukunamathela kwi-scraper ngexesha lokwakha kunye nokunamathela okuphezulu kwi-substrate. Nangona kunjalo, i-HPMC inesiphumo esincinci ekuphuculeni amandla esakhiwo sodaka olumanzi ngokwalo, ebonisa ukuba ukusebenza okuchasene nokunciphisa akucacanga. Ngokuchasene noko, ezinye i-HPMC ezilungisiweyo ezine-viscosity ephakathi kunye nephantsi zibalaseleyo ekuphuculeni amandla okwakhiwa kodaka olumanzi.
Ukucoleka kwe-HPMC nako kunefuthe elithile kugcino lwamanzi. Xa sithetha ngokubanzi, kwi-HPMC ene-viscosity efanayo kodwa ukucoleka okwahlukileyo, i-HPMC iphucukile, kokukhona isiphumo sogcino lwamanzi singcono ngaphantsi kwesixa-mali esifanayo sokongeza.
Ixesha lokuposa: Jun-15-2023