I-HPMC (Hydroxypropyl Methylcelcelcelose) I-Polymenti yePolyment ye-Polyment isetyenziswa ngokubanzi kwizinto zokwakha, ngakumbi kwizixhobo ezisekwe kwisamente. Ukuqaliswa kwe-HPMC kunokuphucula kakhulu ukusebenza kwezinto ezisekwe kwisamente, kubandakanya ukwandisa ukunganyangeki kwe-rack, ukuphucula ukusebenza nokulawula inkqubo ye-hydration, ngokuphucula inkqubo yokuqhekeka.
Ipropathi yekhemikhali kunye nemveliso ye-HPMC
I-HPMC yi-semi-syber polymer eguqulwe ngekhemikhali evela kwi-sellulose. Ulwakhiwo lwayo lwe-molecular lubandakanya i-methyl kunye ne-hydroxyproplonts, inika i-solimelity eyahlukileyo, ukuthambisa, ukugcinwa kwamanzi kunye neempawu zokwenza ifilimu. Iimpawu zayo eziphambili zibandakanya:
Ukugcinwa kwamanzi aphezulu: i-HPMC inomgangatho ofanelekileyo wokugcina amanzi kwaye inokwenza ifilimu yokugcina amanzi ngaphakathi komxholo wokucothisa i-Exvatoration yamanzi.
Isiphumo sokuqaqamba: I-HPMC inokunyusa kakhulu i-viscofity ye-slicry, ngaloo ndlela iphucule ukusebenza kwayo.
Ipropathi yokwakha ifilimu: Ukuqina kwayo kwefilimu kunokwenza ifilimu eguqukayo kumphezulu wezinto, ukubonelela ngokhuseleko olongezelelekileyo.
Indlela yempembelelo ye-HPMC ekuqhekekeni kwezinto ezisekwe kwisamente
I-1. Ukugcinwa kwamanzi kunye nokuncitshiswa kwee-shrinkges ezomileyo
Izixhobo zengcwangumentiyo zifumana amava e-shrintage enkulu ngexesha eliqaqambileyo, ngokuyintloko ngenxa yokulahleka kwamanzi kunye nokuncitshiswa kwamanzi ngenxa yokupheliswa kwe-hydration. Ukuwomisa i-shrinking shrinkige kudla ngokubangelwa kukuvela kwamanzi ngokukhawuleza kwamanzi kwisamente ngexesha lenkqubo ebukhali, kubangela ukuba i-rocks shrinkab. Iipropathi zokugcina amanzi kwi-HPMC Dlala indima ephambili koku:
Iyacothisa i-Eveporation yamanzi: I-HPMC igcina umswakama kwisamente etyibilika, ngaloo ndlela inciphisa i-Eaporation yamanzi. Le ndlela yokugcinwa kwamanzi ayincedi nje ekukhuseleni ixesha lokuphendula lomhlokhola, kodwa inciphise i-shrinking eyomileyo ebangelwa kukubethwa kwamanzi.
Impendulo ye-iyunifomu: kuba i-HPMC ibonelela ngemeko yamanzi esizinzileyo, amasuntswana e-Cledment anokwenza i-radimer engaphezulu kunye nendlela eyaneleyo yokuphendula, ukunciphisa umahluko woxinzelelo lwangaphakathi kunye nokunciphisa umngcipheko wokuqhekeka okubangelwa kukuntywila.
2. Phinda uphucule i-viscofity kunye nokusasaza ukufana kwezixhobo
I-HPMC inefuthe elibi, elidlala indima ebalulekileyo ekuphuculeni ukusebenza kunye nokufana kwezinto ezisekwe kwisamente:
Ukwanda kwe-viscosity: i-HPMC yonyusa i-viscosity ye-farrity, ukuphucula ukusebenza ngexesha lokufaka isicelo, ukuvumela ukuba i-slurry ivumela ukuba ihambe ngcono kwaye igcwalise i-rolds okanye ukunciphisa i-faids kunye neendawo ezingenakuguqulwa.
Ukuhanjiswa kwe-iyunifomu: Ngokwandisa i-viscofity ye-farrity, i-HPMC yenza ukuhanjiswa kweefilimu kunye neentsinga kwi-slicry engaphezulu kwenkqubo enobunzima kunye nokunciphisa ukuqhekeka ngenxa yoxinzelelo olufanelekileyo.
3. Ukuphucula iipropathi zokwenza ifilimu kunye nokukhusela komphezulu
Iprophathi yefilimu yefilimu ye-HPMC ifuna ukwenza umaleko okhuselayo kumphezulu wezinto ezibonakalayo, ezinefuthe elihle ekunciphiseni izikrelemnqa ezingaphezulu:
Ukukhuselwa komphezulu
Ukugubungela okuguquguqukayo: Lo mmandla wefilimu unesidanga esithile esiguquguqukayo kwaye unokufumana inxenye yoxinzelelo ngexesha loxinzelelo, ngaloo ndlela uthintela ukwanda kwemifuno.
4. FUNGA INKQUBO YOKUGQIBELA
I-HPMC ingalawula inkqubo ye-hydm yesamente, edlala indima ebalulekileyo ekunciphiseni uxinzelelo loxinzelelo olubangelwa hydration:
I-HYDM yokukhupha kancinci: i-HPMC inokunciphisa ukuphendula okukhawulezileyo, ukuvumela amanzi kwisamente etyibilika ngokuthe ngcembe, ngaloo ndlela abonelela ngemeko ye-hydration kunye nendawo yokugcina iyunifomu. Esi siphumo sothundo sicothayo kunciphisa uxinzelelo olubangelwa kukuphendula okungalinganiyo, ngaloo ndlela kuncitshiswa umngcipheko wokuqhekeka.
Imizekelo Esekiweyo ye-HPMC kwiZixhobo ezahlukileyo ezisekwe
I-HPMC isetyenziswa ngokubanzi ngezinto ezisekwe kwizinto ezisisiseko, kubandakanya kodwa zingaphelelanga ekuzimiselweni ngokwakho, iingubo zangaphandle zangaphandle, izifanisi kunye nezixhobo zokulungisa ikhonkrithi. Oku kulandelayo yimizekelo ethile yesicelo:
I-1. Ukuzibandakanya
Izinto ezizezona ziphantsi komhlaba zifuna ulwelo oluhle kunye neepropathi zokubonisa ngelixa zithintela imifuno engaphezulu. I-HPMC iphucula ukuhamba kunye nokugqitywa komgangatho wezinto ngokusebenzisa izixhobo zokugcina amanzi kunye nokugcinwa kwamanzi ngelixa kuncitshiswa ukwenzeka kwendawo yokuqhekeka komhlaba.
2. Ipeyinti yangaphandle yangaphandle
Ipeyinti yangaphandle ifuna ukubambelela okuhle kunye nokunganyangeki. Ipropathi yokwakha ifilimu kunye nokugcinwa kwamanzi i-HPMC ukuphucula ukuthambeka kuka-HPMC kunye nokuguquguquka, ngaloo ndlela kuphucule ukunyangwa komsindo kunye nokuba nenxaxheba.
3. Izixhobo zokulungisa
Izixhobo zokulungisa ikhonkrithi zifuna amandla aphezulu kwaye zikhawulezi ngokukhawuleza ngelixa zigcina i-shrinkini eyomileyo. I-HPMC ibonelela ngokugcinwa kwamanzi ngokupheleleyo kunye nezakhono zokulawulwa kwe-hydration, ivumela izinto zokulungisa ukuze zigcine i-shrinkge ephantsi ngexesha lenkqubo enzima kwaye inciphise umngcipheko wokuqhekeka.
Amanyathelo okhuseleko lokusebenzisa i-HPMC
Nangona i-HPMC inefuthe elibonakalayo ekunciphiseni ukuqhekeka kwezinto ezisekwe kwisamente, ezi ngongoma zilandelayo zisafuneka ziqwalaselwe ngexesha lokusetyenziswa:
Ulawulo lweDosage: Umthamo we-HPMC kufuneka ube ngokungqongqo ngokungqinelana neemfuno zefomula. Kakhulu okanye kancinci kuya kuchaphazela intsebenzo yokwenyama. Ngokubanzi, idosi iphakathi kwe-0.1% - i-0.5%.
Ukuxuba ukufana: i-HPMC kufuneka ixutywe ngokucokisekileyo nezinye izinto zokuqinisekisa ukuba iyasebenza kuzo zonke izilayidi.
Iimeko zokwakha: Indawo yokwakha (efana neqondo lobushushu, umswakama) unefuthe kwisiphumo se-HPMC, kwaye kufuneka uhlengahlengiswe ngokufanelekileyo ngokweemeko ezithile.
Njengesixhobo esisebenzayo esisekwe kwisamente, i-HPMC idlala indima ebalulekileyo ekunciphiseni izixhobo ezisekwe kwizixhobo ezikhethekileyo zamanzi ngokugcinwa kwamanzi awodwa, ukwenziwa kwefilimu, ukwenziwa kwefilimu, ukwenziwa kwefilimu kunye neepropathi zolawulo lwefilimu. Ilibazisa ukuvela kwamanzi, kuphucula ukufana kwabantu ngezinto ezibonakalayo, khusela iindawo zezinto ezibonakalayo, kwaye ulawule inkqubo ye-hydration, ngaloo ndlela kuncitshiswa ingozi yokuqhekeka. Ke ngoko, ekusebenziseni izixhobo ezisekwe kwisamente, ukusetyenziswa kwe-HPMC akunakuphucula nje ukusebenza kwezinto, kodwa kukwandise ubomi benkonzo kunye nokunciphisa iindleko zokulungisa.
Ixesha lasemva kwexesha: Jun-26 ukuya ku-4024