IHydroxypropyl methylcellulose (HPMC)i-ether ye-cellulose ebalulekileyo kunye noluhlu olubanzi lwezicelo, ngokukodwa kwiinkalo zokwakha, amayeza, ukutya, njl. Ngokweendlela ezahlukeneyo zokucubungula, i-HPMC inokwahlulwa ibe ziintlobo eziphathwayo kunye nezinganyangwanga.
1. Umahluko kwiinkqubo zemveliso
I-HPMC enganyangwayo
I-HPMC enganyangwayo ayifuni unyango olukhethekileyo lwengubo ngexesha lemveliso, ngoko ke i-hydrophilicity yayo kunye nokunyibilika kwayo kugcinwa ngokuthe ngqo. Olu hlobo lwe-HPMC ludumba ngokukhawuleza kwaye luqala ukunyibilika emva kokudibana namanzi, lubonisa ukwanda ngokukhawuleza kwe-viscosity.
I-HPMC enyangwe ngomphezulu
I-HPMC ephathwe ngomphezulu iya kuba nenkqubo yokwaleka eyongezelelweyo eyongeziweyo emva kwemveliso. Izinto eziqhelekileyo zonyango zonyango ziyi-acetic acid okanye ezinye iikhompawundi ezikhethekileyo. Ngolu unyango, ifilimu ye-hydrophobic iya kwenziwa phezu kweengqungquthela ze-HPMC. Olu nyango lunciphisa inkqubo yokuchithwa kwayo, kwaye ngokuqhelekileyo kuyimfuneko ukuba kusebenze ukuchithwa ngokuvuselela okufanayo.
2. Umahluko kwiipropati ze-solubility
Iimpawu zokuchithwa kwe-HPMC engaphathwanga
I-HPMC enganyangwayo iya kuqalisa ukunyibilika ngoko nangoko emva kokunxibelelana namanzi, alungele iimeko ezineemfuno eziphezulu zesantya sokupheliswa. Nangona kunjalo, njengoko ukunyibilika okukhawulezayo kuthanda ukwenza ii-agglomerates, isantya sokutya kunye nokufana okushukumisayo kufuneka kulawulwe ngononophelo ngakumbi.
Iimpawu zokuchithwa kwe-HPMC ephathwe ngomphezulu
Ukwaleka kumphezulu amasuntswana HPMC aphathwe umphezulu kuthatha ixesha ukunyibilika okanye ukutshabalalisa, ngoko ke ixesha unyibiliko lide, ngokuqhelekileyo imizuzu emininzi ukuya ngaphezu kwemizuzu elishumi. Olu yilo luthintela ukubunjwa kweeagglomerates kwaye lufaneleke ngokukodwa imiboniso efuna ukushukuma okukhulu okukhawulezileyo okanye umgangatho wamanzi onzima ngexesha lenkqubo yokongeza.
3. Umahluko kwiimpawu ze-viscosity
I-HPMC ephethwe ngumphezulu ayiyi kukhulula i-viscosity ngokukhawuleza ngaphambi kokuchithwa, ngelixa i-HPMC engaphendulwanga iya kwandisa ngokukhawuleza i-viscosity yenkqubo. Ngoko ke, kwiimeko apho i-viscosity idinga ukulungiswa ngokuthe ngcembe okanye inkqubo kufuneka ilawulwe, uhlobo oluphathwayo lunenzuzo eninzi.
4. Umahluko kwiimeko ezifanelekileyo
I-HPMC enyangelwe ngaphandle komhlaba
Ifanelekile imiboniso efuna ukupheliswa okukhawulezayo kunye nesiphumo esikhawulezileyo, njengee-arhente zokugquma i-capsule ekhawulezileyo kwindawo yoxubo okanye i-thickeners ekhawulezayo kwishishini lokutya.
Ikwaqhuba kakuhle kwezinye izifundo zaselabhoratri okanye imveliso encinci enolawulo olungqongqo lokulandelelana kokutyisa.
I-HPMC enyangwe ngomphezulu
Isetyenziswe ngokubanzi kwishishini lokwakha, umzekelo, kumdaka owomileyo, i-tile adhesive, i-coatings kunye nezinye iimveliso. Kulula ukusabalalisa kwaye ayenzi i-agglomerate, efanelekileyo kakhulu kwiimeko zokwakha ezinomatshini.
Ikwasetyenziswa kwamanye amalungiselelo amayeza afuna ukukhululwa okuqhubekayo okanye izongezo zokutya ezilawula izinga lokuchithwa.
5. Ukwahluka kwexabiso kunye nokugcinwa
Ixabiso lemveliso ye-HPMC enyangwe phantsi iphezulu kancinane kunelo lingaphathwanga, elibonakala kumahluko wexabiso lemarike. Ukongezelela, uhlobo oluphathwayo oluphezulu lunokhuselo olukhuselayo kwaye luneemfuno eziphantsi zomswakama kunye nokushisa kwendawo yokugcina, ngelixa uhlobo olungaphendulwanga lune-hygroscopic kwaye lufuna iimeko zokugcina ezingqongqo.
6. Isiseko sokhetho
Xa ukhetha HPMC, abasebenzisi kufuneka baqwalasele la manqaku alandelayo ngokweemfuno ezithile:
Ingaba izinga lokupheliswa libalulekile?
Iimfuno zesantya sokukhula kwe-viscosity.
Nokuba iindlela zokutya kunye nokuxuba kulula ukwenza ii-agglomerate.
Inkqubo yoshishino yesicelo esijoliswe kuyo kunye neemfuno zokugqibela zokusebenza kwemveliso.
Unyangelwe ngomphezulu kunye nongaphathwanga ngomphezuluHPMCbaneempawu zabo. Eyangaphambili iphucula ukukhululeka kokusetyenziswa kunye nokuzinza kokusebenza ngokuguqula ukuziphatha kokutshatyalaliswa, kwaye ifanelekile kwimveliso yoshishino olukhulu; Le yokugqibela igcina izinga eliphezulu lokuchithwa kwaye ifaneleke ngakumbi kushishino lweekhemikhali ezilungileyo ezifuna izinga eliphezulu lokuchithwa. Ukhetho loluphi uhlobo olufanele ludibaniswe nemeko yesicelo esithile, iimeko zenkqubo kunye nohlahlo lwabiwo-mali.
Ixesha lokuposa: Nov-20-2024