Umahluko phakathi kwe-hydroxypropyl methylcelcelcelose ne hydroxyythy seluplose

Hydroxypropyl methylcelculose (hpmc) kwayeI-HYDROXYTYL ILANDILONE (Hec) Zombini zombini i-selulose Derivastitives, isetyenziswe ngokubanzi kumzi-mveliso, amayeza, cosmetics kunye namanye amasimi. Umahluko wabo ophambili ubonakaliswa kwimo yemolekyuli, iimpawu zezolula, amasimi esicelo kunye neminye imiba.

1. Ulwakhiwo lweMolekyuli

Hydroxypropyl methylcelculose (hpmc)

I-HPMC yindawo yokubekwa inyibilikiswe ngamanzi asungulwe ngokwazisa i-methyl (-C3) kunye ne-hydroxypropyl (-C2chohch3) amaqela kwi-selsecular thein. Ngokukodwa, isakhiwo se-phudm se-HPMC siqulethe izinto ezimbini ezisebenzayo, i-methyl (-och3) kunye ne-hydroxypropyl (-och2ch (oh). Ngokwesiqhelo, ingeniso yomyinge we-methyl iphezulu, ngelixa i-hydroxypropy inokuphucula ngokufanelekileyo ukuntywila kweselubilose.

I-HYDROXYTYL ILANDILONE (Hec)

I-Hec yindawo yokwahlulwa kwazisiwe ngokuzisa i-Ethyl (-C2C2C2H) kwi-selsulose thein. Kwimo ye-hydroxyteethyl seluplose, i-hydroxyl enye okanye engaphezulu ye-hydroxyl (-) yeselselose itshintshwa yi-Ethyl Hydroxyl (-C2C3oh). Ngokungafaniyo ne-HPMC, isakhiwo se-moleculari se-hec sinendawo enye ye-hydroxyylyl kwaye ayiquki amaqela e-methyl.

I-2. Ukuzalwa kwamanzi

Ngenxa yeyantlukwano yesakhiwo, ukulala kwamanzi kwi-HPMC kunye ne-hec yahlukile.

I-HPMC: i-HPMC inomhlaba olungileyo wamanzi, ngakumbi ekungathathi hlangothi okanye kancinci i-Alkaline PH, isolula singcono kune-hec. Ukuqaliswa kwe-methyl kunye ne-hydroxypropy yamaqela aphucula ukubethwa kwayo kwaye akwazi ukwandisa i-viscofity yayo ngokusebenzisana neemolekyuli zamanzi.

I-hec: hec ihlala inyibilikisa emanzini, kodwa isothulolo lwayo lihlwempuzekile, ngakumbi kumanzi abandayo, kwaye ihlala ichithwa phantsi kweemeko zokufudumeza okanye ifuna ukugxila okuphezulu ukuze kufezekiswe iziphumo zokubonisa. Ukunyibilika kwayo kuhambelana neyantlukwano yesakhiwo kwi-sellulose kunye ne-hydrophility yeqela le-hydroxyyl.

I-3. I-Vilosity kunye neePropathi zeRheOologries

I-HPMC: Ngenxa yobukho bamaqela amabini ahlukeneyo (i-methyl kunye ne-hydroxypropy) kwiimolethi zayo ezilungileyo, i-HPMC isetyenziswe kakuhle kwi-conzesteries emanzini, kwaye isetyenziswa ngokubanzi kwi-coyinges, amalungiselelo amachiza amayeza kunye namanye amabala. Kwiingcali ezahlukeneyo, i-HPMC inokubonelela ngohlengahlengiso ukusuka kwi-viscofity ephantsi ukuya kwi-viscofity ephezulu, kwaye i-viccofity inomdla ngakumbi kuguquko lwe-pH.

I-Hec: UVICWASITY we-Hec unokuhlengahlengiswa ngokutshintsha uxinzelelo, kodwa uluhlu lwayo lokuguqulelwa luluhlu lwe-HPMC. I-hec isetyenziswa ikakhulu kwiimeko apho kufuneka i-viscosity ephantsi, ngakumbi kulwakhiwo, iingcingo kunye neemveliso zononophelo lomntu. Iipropathi ze-ROOOOLOTE ze-HEC azizinzayo, ngakumbi kwiimeko ze-acidic okanye ezingathathi cala, i-HEC inokubonelela ngolwimi oluzinzileyo.

4. Amasimi esetyenziswayo

Hydroxypropyl methylcelculose (hpmc)

Umzi-mveliso wokwakha: I-HPMC isetyenziswa ngokuqhelekileyo kudaka lwesamente kunye neengubo kwishishini lokwakha ukuphucula ulwalamano, ukulungiselela ukulungiselela ukuhambisa amanzi, ukulungiselela nokuthintela imifuno.

Ishishini lamachiza: Njengearhente yokuLawulwa kweziyobisi, i-HPMC isetyenziswa ngokubanzi kumzi-mveliso wamayeza. Ayinakusetyenziswa kuphela njengearhente yetafile kunye ne-capsules, kodwa injengokunamathela ukunceda ichiza likhulula ngokulinganayo.

Ishishini lokutya: I-HPMC ihlala isetyenziswa ekuqhubekeni kokutya njenge-stiblizer, i-thickener okanye i-emulsifier yokuphucula ukuthungwa kunye nokuncamathela kokutya.

Ishishini le-cosmetics: Njengomzi omkhulu, i-HPMC isetyenziswa ngokubanzi kwiimveliso ezinjengeekhrim, ii-shampoos, kunye nezixhobo zokunyusa i-viscofity kunye nokuzinza kweemveliso.

I-HYDROXYTYL ILANDILONE (Hec)

Ishishini lokwakha: I-HEC ihlala isetyenziswa kwisamente, i-Gypsum, kunye ne-tilescheves yokuphucula ubulwele kunye nexesha lokugcina imveliso.

Izicoci: I-Hec ihlala isetyenziswa kubacoci basekhaya, izicoci zokuhlamba iimpahla kunye nezinye iimveliso zokuphucula ukufakwa kwemveliso kunye nokuphucula isiphumo sokucoca.

Ishishini le-cosmetics: I-HEC isetyenziswa ngokubanzi kwiimveliso zonyango, i-geser yeshawari, ishampu, njl njl.

Ukukhutshwa kweoyile: I-HEC inokusetyenziswa kwinkqubo yokukhutshwa kweoyile njenge-thi chuzler kwi-sleckener esekwe emanzini ukunceda ukwandisa i-viscofity yolwelo kwaye iphucule isiphumo sokuqhuba.

5. Uzinzo lwePH

I-HPMC: i-HPMC inobuthathaka kakhulu kuguquko lwe-pH. Phantsi kweemeko ze-ACIIIC, i-sloubing ye-HPMC iyancipha, enokuthi ichaphazele ukusebenza kwayo. Ke ngoko, ihlala isetyenziswa ekungathathi hlangothi ukuya kumhlaba omncinci we-alkaline.

Hec: hec ihlala izinzile ngaphezulu kwenqanaba le-pH. Inolwazi oluqinileyo kwi-acidic kunye ne-alkaline, ngoko ke ihlala isetyenziswa kwizimo ezifuna uzinzo oluqinileyo.

I-HPMCkwayeHecYahluke kubume bemolekyuli, ukuzolula, uhlengahlengiso lohlengahlengiso lwendlela yokusebenza, kunye neendawo zesicelo. I-HPMC inomhlaba olungileyo wokubenzela amanzi kunye nokulungiswa kwe-viscofity, kwaye kufanelekile ukusetyenziswa kwezicelo ezifuna i-viscofity ephezulu okanye umsebenzi othile wokukhupha; Ngelixa i-hec inozinzo olufanelekileyo kunye noluhlu olubanzi lwezicelo, kwaye lifanelekile kwizihlandlo ezifuna i-vissions ephakathi kunye nokuthengiswa kwendalo. Ngokwenyani, ukhetho lwezinto ezifuna ukuvavanywa kwezinto ezifuna ukuvavanywa ngokusekwe kwiimfuno ezithile.