Ukuziqhelanisa nokunamathela ngokuzithandela kukunamathela okhethekileyo kusetyenziselwa ukwenziwa kunye nokubonisa iinjongo kumashishini ahlukeneyo. Ipropathi yayo eyahlukileyo yenza ukuba ilungele ukusetyenziswa kwezicelo ezifuna ukugungqa, ezifana nokwenza umgangatho, ukupeyinta kunye nokufakelwa kodonga.
Elinye lawona mathafa aphambili enza ngokwakhe amachaphaza anemigangatho ye-hydroxypropyl methylcelsele (i-HPMC). I-HPMC yindawo yokukhupha i-seluplose kwaye isetyenziswa ngokubanzi kwi-cayishini, izinto zokwakha, imihlambi kunye namanye amasimi.
Indima ephambili ye-HPMC ekuzingazeni izibhengezo zokuzibandakanya kukulawula i-viscofity kunye nokungqinelana kokunamathela. Iipropathi ze-viscoelastic ze-HPMC zivumela ukubambelela ekuqhubeni kakuhle kwaye ngokulinganayo, kuqinisekisa umphezulu oguqukayo kwaye othe tyaba emva kwesicelo.
I-HPMC ikwaphucula iipropathi eziqhutywa ziimpawu zokuzibandakanya, ezenza isisombululo esifanelekileyo sokujonga iintlobo ezahlukeneyo. Oku kungenxa yokwazi kuka-HPMC ukwenza ibhondi enamandla ngemibandela eyahlukeneyo, kubandakanya ikhonkrithi, iinkuni kunye nentsimbi.
Isixa se-HPMC esisetyenziselwa ukuzibandakanya esikhundleni sixhomekeke kwizinto ezahlukeneyo, kubandakanya uhlobo lokuqina, ukungqinelana okufunekayo kunye nendlela ethile yokwenza isicelo. Ngokubanzi, umthamo ocetyiswayo we-HPMC yi-0.1% ukuya kwi-0.5% ngokobunzima bokuqulunqwa kokunamathela.
Xa uyongeza i-HPMC yokuzibandakanya, kufuneka ixutywe ngokucokisekileyo kunye nezinye izithako zokuthambeka. Oku kuqinisekisa ukuhambisa i-HPMC, kukhokelela ekubambelelekeni okuthe tyaba kunye nokufanayo.
I-HPMC idlala indima ebalulekileyo ekuqulunqweni kokuzimela. Iipropathi zayo ze-viscoelastic zenza isisombululo esifanelekileyo sokufezekisa iindawo ezigudileyo, ezithe tyaba ngelixa ukuphucula iipropathi zokuxhotyiswa kwembeko. Idosi efanelekileyo kunye nokusetyenziswa kwe-HPMC kubalulekile ekuqinisekiseni ukusebenza okuthandayo kokuziqhelanisa nokuzibandakanya.
IXESHA LOKUQALA: FEB-19 ukuya ku-1525