I-HydroxyPOpyl Methylcelcelsele (i-HPMC) yi-polymer eguquguqukayo kunye neepropathi ze-hydrophobic kunye ne-hydrophilic, zenza zahluke kwizicelo ezahlukeneyo kumashishini awahlukeneyo. Ukuze uqonde i-hydrophobizetion kunye ne-hydrophicicity ye-HPMC, kufuneka sifunde ubume bayo, iipropathi kunye nokusetyenziswa kobunzulu.
Ulwakhiwo lwe-Hydroxypropyl Methylcelculose:
I-HPMC yindawo yokukhupha i-seluplose, i-polymer yendalo ifunyenwe kwiindonga zeseli zezityalo. Utshintsho lwe-seluplose lubandakanya ukungeniswa kwe-hydroxyl ye-hydroxyl kunye namaqela e-methyl ukuya kwi-selsulose ngasemva. Olu hlengahlengiso lutshintsha iipropathi zepolymer, ukudlulisela iipropathi ezithile eziluncedo kuluhlu olubanzi lwezicelo.
I-hydrophility ye-HPMC:
Hydroks:
I-HPMC iqulethe amaqela e-hydroxypropyl kwaye i-hyddophilic. La maqela e-hydroxyl anembuyekezo ephezulu kwiimolekyuli zamanzi ngenxa ye-hydrogen.
Iqela le-hydroxypropy linokwenza iibhondi ze-hydrogen ngemolekyuli zamanzi, ezenza inyibilikisi i-hpmc emanzini ukuya kwinqanaba elithile.
Methyl:
Ngelixa iqela leMethyl lifaka isandla kwimonicule, ayichasanga i-hydrophility yeqela le-hydroxlypropy.
Iqela le-METHyl alikho i-polar, kodwa ubukho beqela le-hydroxypropy limisela uphawu lwe-hydrophilic.
I-hydrophobizetion ye-HPMC:
Methyl:
Amaqela e-methyl kwi-HPMC ithatha ukufumanisa kwinqanaba elithile.
Nangona kungekho njenge-hydrophobic njengamanye i-polymers epheleleyo, ubukho bamaqela be-methyl inciphisa i-hpmrophicicity ye-hpmc.
I-Fible yeFom:
I-HPMC yaziwa ngokuba ziipropathi zayo zefilimu kwaye zihlala zixhaphazwa kwizicelo zamayeza kunye nezicombululo. I-hydrophobizety inegalelo ekusekweni kwefilimu yokukhusela.
Unxibelelwano olunezinto ezingezizo ezingoondweni:
Kwezinye izicelo, i-HPMC inokunxibelelana nezinto ezingezizo ezingolonwabo ngenxa ye-hydrophobicity yayo. Le ndawo ibaluleke kakhulu kwiinkqubo zokuhambisa iziyobisi kumzi-mveliso wamachiza.
Izicelo ze-HPMC:
Iyeza:
I-HPMC isetyenziswe ngokubanzi kwifomu yamayeza njenge-binder, ifilimu yangaphambili, kunye ne-viscosity modifier. Ukwazi kwako ukwenza ifilimu eququzelela ukukhululwa kwamachiza.
Isetyenziswe kwiifom zomnxeba eziqinileyo zethamo ezifana neetafile kunye neecapsules.
Ishishini lokwakha:
Kwicandelo lezokwakha, i-HPMC isetyenziswa kwiimveliso ezisekwe kwimo yesamente ukuphucula ukusebenza, ukugcinwa kwamanzi kunye nokunamathela.
I-hydrophility inceda ukugcina amanzi, ngelixa i-hydrophobiity inceda ukuphucula ubunamatheko.
Ishishini lokutya:
I-HPMC isetyenziswa njengearhente yomzimba kunye ne-geling kwishishini lokutya. Indalo yayo ye-hydrophili inceda ukwenzela i-galls ezizinzileyo kunye nokulawula ukufakwa kweemveliso zokutya.
I-Cosmetic:
Kwimigangatho ye-cosmetic, i-HPMC isetyenziswa kwiimveliso ezinjengeekhrim kunye neziqwengana ngenxa yefilimu yefilimu kunye nezinto ezinamabala.
I-hydrophility iqinisekisa i-hydimer elungileyo yolusu.
ukuququmbela:
I-HPMC yi-polymer eyi-hydrophilic kunye ne-hydrophobic. Imali eseleyo phakathi kwe-hydroxypropy kunye namaqela e-methyl kwisakhiwo sayo sinika uqhawulo-msebenzi, siwuvumela ukuba ibe noluhlu olubanzi lwezicelo. Ukuqonda ezi mpahla kubalulekile ekulungelelaniseni i-HPMC ukuya kusetyenziso oluthile kumashishini ahlukeneyo, apho amandla e-HPMC akwazi ukunxibelelana namanzi kunye nezinto ezingekhoyo esetyenziswayo zisetyenziselwa iintlobo ezahlukeneyo.
Iposi