Ingabe i-hpmc hydrophobic noma i-hydrophilic?

I-Hydroxypropyl Methylcellulose (HPMC) iyinhlangano eguquguqukayo enezinto zombili ze-hydrophobic ne-hydrophilic, okwenza ihluke ezinhlobonhlobo zezicelo ezikhona ezimbonini ezahlukene. Ukuze siqonde i-hydrophobicity kanye ne-hpdrophicity ye-HPMC, kudingeka sifunde ukwakheka kwayo, izakhiwo kanye nezinhlelo zokusebenza ngokujula.

Ukwakheka kwe-hydroxypropyllyll methylcellulose:

I-HPMC iyisisulu se-cellulose, i-polymer yemvelo etholakala ezindongeni zeseli zezitshalo. Ukuguqulwa kwe-cellulose kubandakanya ukwethulwa kwe-hydroxypropyl kanye namaqembu we-methyl ku-cellulose backbone. Lokhu kuguqulwa kushintsha izakhiwo ze-polymer, ukuhambisa izakhiwo ezithile ezizuzisa ezinhlobonhlobo zezicelo.

Hydrophilicity of hpmc:

I-Hydroxy:

I-HPMC iqukethe amaqembu we-hydroxypropyl futhi yi-hydrophilic. Lawa maqembu ama-hydroxyl anobudlelwano obuphezulu kuma-molecule amanzi ngenxa yokubopha nge-hydrogen.

I-Hydroxypropyl Group ingakha ama-hydrogen bond ngama-molecule wamanzi, okwenza i-HPMC incibilike emanzini ngezinga elithile.

methyl:

Ngenkathi iqembu le-methyl linomthelela e-hydrophophobicity ephelele ye-molecule, alizwani ne-hydrophicity yeqembu le-hydroxypropyll.

Iqembu le-methyl lingeyona i-non-polar, kepha ukuba khona kweqembu le-hydroxypropyl kunquma umlingiswa we-hydrophilic.

Hydrophobicity of hpmc:

methyl:

Amaqembu we-methyl ku-HPMC anquma ngezinga elithile i-hydrophopobicity yayo.

Yize kungenjalo njenge-hydrophobic njengoba amanye elenziwe ngokugcwele ama-polymer, ukuba khona kwamaqembu we-methyl kunciphisa i-hydrophicicity ephelele ye-HPMC.

Ifilimu Yakha Izakhiwo:

I-HPMC yaziwa ngezakhiwo zayo zokwakha amafilimu futhi ivame ukuxhashazwa kwizicelo zezemithi kanye nezimonyo. I-Hydrophobicity inomthelela ekwakhekeni kwefilimu evikelayo.

Ukuxhumana nezinto ezingezona ze-polar:

Kwezinye izinhlelo zokusebenza, i-HPMC ingasebenzisana nezinto ezingezona ze-polar ngenxa ye-hydrophopobicity yayo eyingxenye. Le mpahla ibalulekile ezinhlelweni zokulethwa kwezidakamizwa embonini yezemithi.

Izicelo ze-HPMC:

Isidakamizwa:

I-HPMC isetshenziswa kabanzi ekwakhiweni kwemithi njenge-binder, ifilimu langaphambilini, kanye ne-viscosity modifier. Ikhono layo elakha amafilimu lisiza ukukhishwa kwezidakamizwa ezilawulwayo.

Isetshenziswa ezinhlelweni zomthamo eziqinile zomlomo ezifana namathebulethi kanye nama-caplule.

Imboni Yokwakha:

Emkhakheni wezokwakha, i-HPMC isetshenziswa emikhiqizweni esekwe kasiko ukwenza ngcono ukusebenza, ukugcinwa kwamanzi nokunamathelisa.

IHydrophilicity isiza ukugcina amanzi, kanti i-hydrophobicicity isiza ukuthuthukisa ukunamathela.

Imboni yokudla:

I-HPMC isetshenziswa njenge-ejenti yabakhulu kanye ne-gelling embonini yokudla. Imvelo yayo ye-hydrophilic isiza ukwakha ama-gels azinze futhi alawule ukubonwa kwemikhiqizo yokudla.

cosmetic:

Ezihlotsheni zezimonyo, i-HPMC isetshenziswa emikhiqizweni efana nokhilimu kanye nama-lotions ngenxa yezakhiwo zayo zokwakha amafilimu nezikhuthazayo.

IHydrophilicity iqinisekisa i-hydration enhle yesikhumba.

Ekuphetheni:

I-HPMC iyi-polymer e-hydrophilic ne-hydrophobic. Ibhalansi phakathi kwe-Hydroxypropyl kanye namaqembu we-methyl esakhiweni sawo kunikeza ukuguquguquka okuhlukile, okuvumela ukuthi kube nezinhlobonhlobo zezicelo. Ukuqonda lezi zindawo kubalulekile ukuze kusetshenziswe i-HPMC ekusetshenzisweni okuthile emikhakhelweni ehlukene, lapho amandla e-HPMC axhumana namanzi nezinto ezingahambisani nazo zisetshenziselwa izinhloso ezahlukahlukene.