I-hydroxypropyl methylcellulose ayinyibiliki phantse kwi-ethanol epheleleyo kunye ne-acetone. Isisombululo samanzi sizinzile kakhulu kubushushu begumbi kwaye sinokugalela ijeli kubushushu obuphezulu. Uninzi lwe-hydroxypropyl methylcellulose ethengiswayo ngoku luluhlobo lwamanzi abandayo (amanzi obushushu begumbi, amanzi epompo) olukhawulezileyo. I-HPMC yamanzi abandayo akhawulezileyo iya kuba lula kwaye ikhuselekile ukuyisebenzisa. I-HPMC kufuneka yongezwe ngokuthe ngqo kwisisombululo samanzi abandayo emva kwemizuzu elishumi ukuya kwengamashumi alithoba ukuze iqine kancinci kancinci. Ukuba yimodeli ekhethekileyo, kufuneka ixutywe ngamanzi ashushu ukuze isasazeke, ize igalelwe emanzini abandayo ukuze inyibilike emva kokuba ipholile.
Xa iimveliso ze-HPMC zongezwa ngqo emanzini, ziya kujika zize zinyibilike, kodwa oku kunyibilika kuhamba kancinci kwaye kunzima. Ezi ndlela zintathu zilandelayo zokunyibilika ziyacetyiswa, kwaye abasebenzisi banokukhetha eyona ndlela ilula ngokwemeko yokusetyenziswa (ngokukodwa kwi-HPMC yamanzi abandayo).
Indlela yokunyibilikisa kunye namanyathelo okhuseleko e-HPMC
1. Indlela yamanzi abandayo: Xa kufuneka yongezwe ngokuthe ngqo kwisisombululo samanzi esiqhelekileyo sobushushu, kungcono ukusebenzisa uhlobo lokusasazeka kwamanzi abandayo. Emva kokongeza i-viscosity, ukuhambelana kuya kunyuka kancinci ukuya kwimfuneko yesalathisi.
2. Indlela yokuxuba umgubo: Umgubo we-HPMC kunye nomlinganiselo ofanayo okanye ngaphezulu kwezinye izinto ezinjengomgubo zisasazeka ngokupheleleyo ngokuxuba okomileyo, kwaye emva kokongeza amanzi ukuze kunyibilike, i-HPMC inokunyibilika ngeli xesha kwaye ayisayi kuphinda ihlangane. Enyanisweni, nokuba loluphi uhlobo lwe-hydroxypropyl methylcellulose. Ingaxutywa ngqo nezinye izinto.
3. Indlela yokumanzisa i-organic solvent: I-HPMC isasazwa okanye imanziswe zi-organic solvents, ezifana ne-ethanol, i-ethylene glycol okanye ioyile, ize inyibilike emanzini, kwaye i-HPMC nayo inokunyibilika kakuhle.
Ngexesha lenkqubo yokunyibilika, ukuba kukho i-agglomeration, iya kusongwa. Oku kungenxa yokuxutywa okungalinganiyo, ngoko ke kuyimfuneko ukukhawulezisa isantya sokuxutywa. Ukuba kukho amaqamza ekunyibilikeni, kungenxa yomoya obangelwa kukuxutywa okungalinganiyo, kwaye isisombululo sivunyelwe ukuba sime iiyure ezi-2 ukuya kwezi-12 (ixesha elithile lixhomekeke ekuqineni kwesisombululo) okanye ukucoca nge-vacuum, uxinzelelo kunye nezinye iindlela zokususa, ukongeza isixa esifanelekileyo se-defoamer nako kunokuphelisa le meko. Ukongeza isixa esifanelekileyo se-defoamer nako kunokuphelisa le meko.
Ekubeni i-hydroxypropyl methylcellulose isetyenziswa kumashishini ahlukeneyo, kubaluleke kakhulu ukuba nolwazi ngendlela yokunyibilikisa i-hydroxypropyl methylcellulose ukuze isetyenziswe ngokuchanekileyo. Ukongeza, abasebenzisi bayakhunjuzwa ukuba banikele ingqalelo ekukhuseleni ilanga, ekukhuseleni imvula kunye nokukhuselwa kokufuma ngexesha lokusetyenziswa, baphephe ukukhanya ngqo, kwaye bagcine kwindawo evaliweyo neyomileyo. Baphephe ukudibana nemithombo yokutsha kwaye baphephe ukwenzeka kothuli oluninzi kwiindawo ezivaliweyo ukuthintela iingozi zokuqhuma.
Ixesha lokuthumela: Juni-20-2023