Ingabe i-HPMC ayithandi amanzi noma ayithandi amanzi?

I-Hydroxypropyl methylcellulose (HPMC) iyi-polymer eguquguqukayo enezakhiwo ezithinta amanzi kanye nezithambisi, okwenza ihluke ezinhlotsheni ezahlukene zezicelo kuzo zonke izimboni ezahlukene. Ukuze siqonde ukuthi i-HPMC ayithambisi amanzi kanye nezithambisi amanzi, sidinga ukufunda isakhiwo sayo, izakhiwo kanye nezicelo zayo ngokujulile.

Isakhiwo se-hydroxypropyl methylcellulose:

I-HPMC iyi-derivative ye-cellulose, i-polymer yemvelo etholakala ezindongeni zamaseli ezitshalo. Ukuguqulwa kwe-cellulose kuhilela ukungeniswa kwamaqembu e-hydroxypropyl kanye ne-methyl emgogodleni we-cellulose. Lokhu kuguqulwa kushintsha izakhiwo ze-polymer, okunikeza izakhiwo ezithile eziwusizo ezinhlobonhlobo zezicelo.

Ukuthambekela kwamanzi kwe-HPMC:

I-Hydroxy:

I-HPMC iqukethe amaqembu e-hydroxypropyl futhi ithanda amanzi. La maqembu e-hydroxyl anamandla aphezulu kuma-molecule amanzi ngenxa yokubopha kwe-hydrogen.

Iqembu le-Hydroxypropyl lingakha izibopho ze-hydrogen nama-molecule amanzi, okwenza i-HPMC incibilike emanzini ngezinga elithile.

i-methyl:

Nakuba iqembu le-methyl lifaka isandla ekungangeni kwamanzi kwe-molecule, aliphikisani nokungangeni kwamanzi kweqembu le-hydroxypropyl.

Iqembu le-methyl aliyona i-polar, kodwa ukuba khona kweqembu le-hydroxypropyl kunquma uhlamvu lwe-hydrophilic.

Ukungathandi amanzi kwe-HPMC:

i-methyl:

Amaqembu e-methyl ku-HPMC anquma ngezinga elithile ukuthi ayibangeli ukungezwani kwamanzi.

Nakuba kungeyona into ethinta amanzi njengamanye ama-polymer akhiwe ngokugcwele, ukuba khona kwamaqembu e-methyl kunciphisa ukuguquguquka kwamanzi kwe-HPMC.

Izakhiwo zokwakha ifilimu:

I-HPMC yaziwa ngezakhiwo zayo zokwakha ifilimu futhi ivame ukusetshenziswa ekusetshenzisweni kwemithi kanye nezimonyo. Ukungathandi amanzi kunegalelo ekwakhekeni kwefilimu evikelayo.

Ukusebenzisana nezinto ezingezona ezi-polar:

Kwezinye izinhlelo zokusebenza, i-HPMC ingasebenzisana nezinto ezingezona ezomhlaba ngenxa yokungathandi amanzi ngokwengxenye. Lesi sici sibalulekile ezinhlelweni zokulethwa kwemithi embonini yezemithi.

Ukusetshenziswa kwe-HPMC:

umuthi:

I-HPMC isetshenziswa kabanzi ekwakhiweni kwemithi njenge-binder, i-film former, kanye ne-viscosity modifier. Amandla ayo okwenza ifilimu enza kube lula ukukhishwa kwemithi okulawulwayo.

Isetshenziswa ezinhlotsheni zomthamo oqinile womlomo njengamaphilisi nama-capsule.

Imboni yokwakha:

Emkhakheni wokwakha, i-HPMC isetshenziswa emikhiqizweni esekelwe kusimende ukuthuthukisa ukusebenza kahle, ukugcinwa kwamanzi kanye nokunamathela.

Ukuthambekela kokusebenzisa amanzi kusiza ukugcina amanzi, kanti ukuthambekela kokusebenzisa amanzi kusiza ekuthuthukiseni ukunamathela.

imboni yokudla:

I-HPMC isetshenziswa njengesithako sokujiya kanye ne-ejenti yokugaya ukudla embonini yokudla. Imvelo yayo yokunamathela emanzini isiza ekwakheni ama-gel aqinile futhi ilawule ukujiya kwemikhiqizo yokudla.

ubuhle:

Ezakhiweni zobuhle, i-HPMC isetshenziswa emikhiqizweni efana nokhilimu nama-lotion ngenxa yezakhiwo zayo zokwakha ifilimu nokuqina.

Ukuthambekela kokukhanya kuqinisekisa ukumuncwa kahle kwesikhumba.

Ekuphetheni:

I-HPMC iyi-polymer ethanda amanzi futhi engathandi amanzi. Ukulinganisela phakathi kwamaqembu e-hydroxypropyl kanye ne-methyl esakhiweni sayo kuyinika ukuguquguquka okuyingqayizivele, okuvumela ukuthi ibe nezinhlelo zokusebenza eziningi. Ukuqonda lezi zakhiwo kubalulekile ekuvumelaniseni i-HPMC nokusetshenziswa okuthile ezimbonini ezahlukene, lapho ikhono le-HPMC lokuxhumana namanzi nezinto ezingezona ezemvelo lisetshenziselwa izinjongo ezahlukahlukene.