IHydroxypropylmethylcellulose (HPMC) yikhemikhali esetyenziswa ngokubanzi kumashishini amaninzi.Isetyenziselwa ikakhulu iinjongo zokutyebisa kunye ne-emulsifying kwiinkalo zokwakha, ukutya, izithambiso kunye namayeza.Kweli nqaku, sixoxa ngezinye iingcebiso malunga nendlela yokusebenzisa i-HPMC ngokufanelekileyo kwinkqubo yokuvelisa.
1. Qonda iimpawu ze-HPMC
Ngaphambi kokusebenzisa i-HPMC kwinkqubo yokuvelisa, kubalulekile ukuqonda iimpawu zayo zomzimba kunye neekhemikhali.I-HPMC inyibilika kakhulu emanzini kwaye ayinyibiliki kwizinyibilikisi eziphilayo.Xa ifakwe emanzini, yenza isisombululo esicacileyo kunye ne-viscous.I-HPMC ayinayo ityhefu, ayinayo i-ionic, kwaye ayisebenzi kunye nezinye iikhemikhali.
2. Misela ibakala elifanelekileyo le-HPMC
HPMC ifumaneka kumabanga aliqela, ngalinye viscosities ezahlukeneyo, ubunzima molekyuli kunye nobukhulu amasuntswana.Ukukhetha ibakala elichanekileyo kuxhomekeke kuhlobo lwemveliso oyenzayo.Umzekelo, ukuba wenza ulwelo olucekethekileyo, unokufuna ibakala eliphantsi le-viscosity ye-HPMC, kunye neemveliso ezityebileyo, ibakala eliphezulu le-viscosity.Ukubonisana nomvelisi we-HPMC kuyacetyiswa ukuba umisele ibakala elifanelekileyo lemveliso yakho.
3. Qinisekisa iimeko ezifanelekileyo zokugcina
I-HPMC yi-hygroscopic, nto leyo ethetha ukuba ifunxa ukufuma kwi-atmosfera.Kubalulekile ukugcina i-HPMC kwindawo eyomileyo nepholileyo ukukhusela i-caking okanye ukuqina.Kufuneka zigcinwe kwizikhongozeli ezingangeni moya ukunqanda ukuba sesichengeni somoya okanye ukufuma.
4. Xuba ngokufanelekileyo HPMC kunye nezinye izithako
I-HPMC isetyenziswa ikakhulu njenge-thickener okanye i-binder ngexesha lenkqubo yokuvelisa.Kubalulekile ukuxuba HPMC kakuhle kunye nezinye izithako ukuqinisekisa umxube homogeneous.I-HPMC kufuneka yongezwe emanzini kwaye ivuselelwe ngokucokisekileyo phambi kokuba ixutywe nezinye izithako.
5. Sebenzisa isixa esifanelekileyo se-HPMC
Isixa esichanekileyo se-HPMC ukongeza kwimveliso kuxhomekeke kwizinto ezifunwayo zomzimba, i-viscosity kunye nezinye izithako.Ngaphezulu okanye ngaphantsi kwedosi ye-HPMC inokuchaphazela umgangatho kunye nokuzinza kwemveliso yokugqibela.Kuyacetyiswa ukuba usebenzise i-HPMC phakathi koluhlu oluchaziweyo olucetyiswa ngumvelisi.
6. Yongeza kancinci i-HPMC emanzini
Xa ufaka i-HPMC emanzini, kufuneka ifakwe ngokuthe ngcembe ukuthintela ukubunjwa kwe-clumps.Ukuvuselela rhoqo kuyimfuneko xa udibanisa i-HPMC emanzini ukuqinisekisa umxube ohambelanayo.Ukongeza i-HPMC ngokukhawuleza kuya kubangela ukusasazwa okungalinganiyo, okuya kuchaphazela imveliso yokugqibela.
7. Gcina i-pH efanelekileyo
Xa usebenzisa i-HPMC, i-pH yemveliso ibalulekile.I-HPMC inoluhlu lwe-pH olulinganiselweyo, phakathi kwe-5 kunye ne-8.5, ngaphaya apho ukusebenza kwayo kunokuncitshiswa okanye kulahleke.Ukugcina inqanaba le-pH elichanekileyo kubalulekile xa usebenza ne-HPMC.
8. Khetha ubushushu obufanelekileyo
Xa usebenzisa i-HPMC, ubushushu bemveliso ngexesha lokwenziwa nokugcinwa lubalulekile.Iimpawu ze-HPMC, ezifana ne-viscosity, ukunyibilika, kunye ne-gelation, zixhomekeke kubushushu.Ubushushu obufanelekileyo bokuxuba i-HPMC yi-20-45 degrees Celsius.
9. Jonga ukuhambelana kwe-HPMC kunye nezinye izithako
Ayizizo zonke izithako ziyahambelana HPMC.Ukuhambelana HPMC kunye nezinye izithako kufuneka ivavanywe phambi kokuba ukongeza HPMC.Izithako ezithile zinokunciphisa ukusebenza kwe-HPMC, ngelixa ezinye zinokuyiphucula.
10. Zilumkele iziphumo ebezingalindelekanga
Nangona i-HPMC ingeyotyhefu kwaye ikhuselekile ukuyisebenzisa, inokubangela ukucaphuka kwesikhumba okanye kwamehlo.Amanyathelo okhuseleko kufuneka athatyathwe, njengokunxiba izixhobo zokukhusela ezinje ngeeglavu kunye neeglavu, kunye nokuphepha ukuphefumla uthuli lwe-HPMC.
Ukushwankathela, ukongeza i-HPMC kwinkqubo yokuvelisa kunokuphucula umgangatho kunye nokuzinza kwemveliso.Nangona kunjalo, ukuze usebenzise i-HPMC ngempumelelo, kunyanzelekile ukuba uthathe amanyathelo okhuseleko ayimfuneko kwaye ulandele ezi ngcebiso zingentla.
Ixesha lokuposa: Jul-28-2023