Umehluko phakathi kwe-HPMC ne-MC, i-HEC, CMC

I-Hydroxypropyl Methylcellulose (HPMC) kanye nokutholwa kwayo, kufaka phakathi i-methylcellulose (MC), i-hydroxyyethyl cellulose (i-CORDBYYYL Cellulose (CMC), isetshenziswa umehluko phakathi kwalezi zinhlaka zibalulekile ekwenzeni ukusetshenziswa kwazo emikhakheni ehlukene, esuka emikhakheni nasekudleni ekwakheni nasekunakekelweni komuntu siqu.

Ukutholwa kwe-Cellulose kubaluleke kakhulu kwizimboni eziningi ngenxa yezindawo zabo eziguquguqukayo kanye nezicelo. Phakathi kwalezi zinto ezifuywayo, i-hpdroxypropyl methylcellulose (HPMC), i-methylcellulose (MC), i-hydroxyethyl cellulose (Hec), kanye neCarboxyboxylll (CMC) zivelele izici zazo ezisakazekile nezihluke kakhulu.

Izakhiwo eziyi-1.Chemical:

I-Hydroxypropyl methylcellulose (HPMC):
I-HPMC ihlelwe kusuka ku-cellulose ngokusebenzisa ukuguqulwa kwamakhemikhali okubandakanya ukufaka indawo yamaqembu e-hydroxyl namaqembu we-hydroxypropyl. Izinga lokufaka esikhundleni (DS) linquma izakhiwo zalo, kufaka phakathi ukubonwa kanye nokulisebenzisa. Isakhiwo samakhemikhali se-HPMC sidlulisela izakhiwo ezinhle ezenziwe ngefilimu namakhono okugcinwa kwamanzi, okwenza kube lulungele izinhlelo zokusebenza ezahlukahlukene.

Methylcellulose (MC):
I-MC isuselwa ku-cellulose ngokufaka esikhundleni samaqembu ama-hydroxyl namaqembu we-methyl. Ngokungafani ne-HPMC, i-MC iswele amaqembu we-hydroxypropyl. Izakhiwo zayo zithonywa yizinto ezifana nezinga lokufakwa esikhundleni kanye nesisindo se-molecular. I-MC ikhombisa ukugcinwa kwamanzi okuhle nokuqina kwezindawo, okwenza kube yigugu ezimbonini ezinjengemithi nokudla.

I-Hydroxyyethyl cellulose (HEC):
I-HEC ihlanganiswe ngokuthengwa kwe-cellulose nge-ethylene oxide. Ukwethulwa kwamaqembu e-Hydroxyethyl kudlulisela izakhiwo ezihlukile njengokusebenza okuphezulu okuphezulu kanye ne-pseudoplasticity. I-HEC isetshenziswa kabanzi emikhiqizweni yokunakekelwa komuntu siqu, upende, kanye nokunamathela ngenxa yokulawulwa kwayo kwama-rherological kanye namakhono okwakha amafilimu.

I-Carboxymethyl Cellulose (CMC):
I-CMC ikhiqizwa ngokuphendula iselula nge-chlororosetic acid noma usawoti wayo we-sodium. Kwethulwa amaqembu e-carboxymethyl, athuthukise izakhiwo ezinjengamanzi e-solubity, ukuhlakanipha nokuqina. I-CMC ithola izinhlelo zokusebenza ekudleni, emikhakheni kanye nokushayela uwoyela ngenxa yokuqina kwayo, ukuzinza, nezinto ezibophayo.

2.ProPeries:

I-Viscosity:
I-HPMC, i-MC, i-HEC, kanye ne-CMC ekhombisa ukuhlukahluka okuhlukahlukene kwamazinga wokubona kuya ngezinto ezinjengezinga lokufaka esikhundleni, isisindo se-molecular, kanye nokuhlushwa. Ngokuvamile, i-HPMC ne-MC inikela ngokulawulwa okuphezulu kwe-viscosity ngokuqhathaniswa ne-HEC ne-CMC, nge-HEC ehlinzeka ngokuqina okuphezulu kokugxila okuphansi.

Ukugcinwa kwamanzi:
I-HPMC ne-MC inamakhono amahle kakhulu wokugcina amanzi, okubalulekile ukuze kusetshenziswe izinhlelo zokusebenza ezidinga ukugcinwa komswakama nokukhululwa isikhathi eside. I-HEC ibuye ibuye ibonise izakhiwo ezinhle zokugcina amanzi, kuyilapho i-CMC inikeza ukugcinwa kwamanzi okulinganiselayo ngenxa yokuhlaselwa kwayo okuphezulu.

Ukwakheka kwamafilimu:
I-HPMC ne-HEC yaziwa ngamakhono abo okwenza amafilimu, okwenza ukukhula kwamafilimu ahambisanayo futhi aguquguqukayo. I-MC, yize inamandla okwenza amafilimu, ingakhombisa ubucwebe obuqhathaniswa ne-HPMC ne-HEC. I-CMC, isetshenziswe ngokuyinhloko njengomenzeli wokuqina nowokuzinza, inezakhiwo ezilinganiselwe zefilimu.

I-Solubity:
Zonke izithonjana ezine ze-cellulose zingena emanzini angenamanzi ezinsukwini ezihlukile. I-HPMC, i-MC, ne-CMC ihlakaze kalula emanzini, ngenkathi i-hec ikhombisa i-solubity ephansi, edinga amazinga okushisa aphezulu okuchithwa. Ngokwengeziwe, izinga lokufaka esikhundleni lithonya insocility yalezi zinto zokutholwa.

I-3.Application:

Izemithi:
I-HPMC ne-MC isetshenziswa kakhulu ekusungulweni kwemithi njengezixhumanisi, ukuhlukahlukana, kanye nama-ejenti wokukhishwa alawulwa ngenxa yokuthola ukwakheka kwawo kanye nokukhishwa kwezindawo. I-HEC ithola izinhlelo zokusebenza kuzixazululo ze-Ophthalmic kanye nokwakhiwa kwezindawo eziphezulu ngenxa yokucaciswa kwayo nokulawulwa kwe-viscosity. I-CMC iqashwa ekumisweni okumiswa ngomlomo kanye namathebulethi emiphumela yawo yokuqina kanye nokuzinza.

Imboni yokudla:
I-CMC idlala indima ebalulekile embonini yokudla njengomuntu omkhulu, i-stabilizer, kanye namafutha esikhundleni semikhiqizo efana ne-ayisikhilimu, amasoso, nezinto zokubhaka. I-HPMC ne-MC zisetshenziswa ekwakhiweni kokudla kwezindawo zazo zokuqina, ukugada, kanye nezinto ezibopha amanzi. I-HEC ayijwayelekile kepha ingahle isetshenziswe kuzinhlelo zokusebenza ezikhethekile njengokudla okunamakhalori aphansi neziphuzo.

Ukwakha:
I-HPMC isetshenziswa kabanzi ezintweni zokwakha ezifana nezinkuni ezinama-cementional, izinamathiseli ze-tile, kanye nemikhiqizo esekwe kuma-gypsum ngenxa yokugcinwa kwayo kwamanzi, ukuthuthukiswa kokusebenza, kanye nezinto ezinamathela. I-MC isetshenziswa futhi kuzicelo ezifanayo, ifaka isandla ekuthuthukisweni okuthuthukile kanye nokubumbana. I-HEC ithola ukusetshenziswa okulinganiselwe ekwakheni ngenxa yezindleko zayo eziphakeme ngokuqhathaniswa ne-HPMC ne-MC.

Imikhiqizo Yokunakekelwa Kwakho:
I-HEC ne-HPMC yande kakhulu emikhiqizweni yokunakekelwa komuntu siqu efana nama-shampoos, ama-lotions, kanye nokhilimu njengama-ejenti akhuthazayo, abaqinisi, kanye namafomu efilimu. Ukuhambisana kwawo okuhlukahlukene kwezithako zezimonyo kanye nekhono labo lokuthuthukisa ukusebenza komkhiqizo kubenze babaluleke kakhulu ekwakhiweni. I-CMC ingahle isetshenziswe ezinhlelweni ze-niche ngaphakathi komkhakha wokunakekelwa komuntu siqu ngenxa yezakhiwo zayo zokuqina kanye nokuqina.

Ukubaluleka Kwezimboni:
Ukubaluleka kwe-HPMC kanye nokutholakala kwayo kulele ekusebenzeni kwazo nokuvumelana nezimo ezimbonini ezahlukahlukene. Lawa ma-cellulose derivativeveveveveveves asebenza njengezakhi ezibalulekile ekwakhiweni, efaka isandla kwikhwalithi yomkhiqizo, ekusebenzeni nasekusebenzeni. Izakhiwo zazo ezahlukahlukene zizenza zibaluleke kakhulu emikhakheni efana nemithi, ukudla, ukwakha, nokunakekelwa komuntu siqu, ukushayela okusha kanye nokukhula kwemakethe.

I-Hydroxypropyl Methylcellulose (HPMC) kanye nokutholwa kwayo, kufaka phakathi i-methylcellulose (MC), i-Hydroxyyethyl cellulose (i-CMC), kanye ne-cardboxylyl celtulose (CMC), nikeza izakhiwo ezihlukile kanye nokusebenza okulungele izinhlelo eziningi. Ngenkathi lezi zisuselwa kuma-cellulose zihlanganyela okujwayelekile ngokuya ngemvelaphi yamakhemikhali kanye ne-solubility yamanzi, zibonisa izici ezihlukile ngokuya ngokubonakala, ukugcinwa kwamanzi, nokwakheka kwamafilimu, kanye nokulungiswa kwefilimu. Ukuqonda lokhu kwehluka kubalulekile ekwakheni ukusetshenziswa kwawo kuzo zonke izimboni, ukukhuthaza izinto ezintsha, kanye nokukhulisa umnotho.