Umehluko phakathi kwe-hydroxypropyllylylylm methylcellulose kanye hydroxyethyl cellulose

I-Hydroxypropyl methylcellulose (HPMC)na-I-Hydroxyyethyl cellulose (HEC)zingama-cellulose ezimbili ezisetshenziswayo ezisetshenziswayo. Zisetshenziswa kabanzi ekwakheni, emikhakheni, izimonyo, ukudla kanye nezinye izimboni ngenxa yezakhiwo zazo ezihlukile nokusebenzisa. Yize zombili izinto ze-polymer ezincibilikayo ezisuselwa ku-cellulose yemvelo, kukhona umehluko osobala phakathi kwalokhu okubili ngesakhiwo samakhemikhali, ekwenzeni ukusebenza kanye nezinkundla zohlelo lokusebenza.

1. Umehluko ngesakhiwo samakhemikhali

I-HPMC (HYDROXYPROPYL Methylcellulose)

Kuyinto ether ye-celtulose engekho e-ionic etholwe ngokuphendula i-cellulose nge-methanol ne-propelene oxide ngemuva kwe-alkalization. Isakhiwo saso samangqamuzana siqukethe i-methoxy (-Och3) kanye ne-hydroxypropoxy (-ch2chohchch3). Izinga lokufaka esikhundleni se-HPMC lingashintshwa ngokuya ngokusetshenziswa okuhlukile.

I-HEC (HYDROXYETHY Cellulose)

Kungumkhiqizo otholwe ukusabela kokusheshisa kweselula nge-ethylene oxide ngemuva kwe-alkalization, futhi isakhiwo salo samangqamuzana siqukethe ukufakwa esikhundleni kwe-hydroxyethyl (-ch2chch2oh). I-HEC iyi-ether ether engenawo amanzi e-mollule

2. Umehluko wokusebenza

Ubuhlakaniselo

I-KimaCell®HPMC ingancibilika ngokushesha emanzini abandayo ukwakha isixazululo esibonakalayo noma esibi se-milky, okumelana nokushisa okuphezulu. Inosawoti omuhle nokumelana ne-alkali futhi ingaba khona kungenzeka ngobubanzi be-PH (3-11).

I-KimaCell®heec nayo inyuka emanzini abandayo, kepha izinga lokuchithwa lihamba kancane, futhi ukuqina kokushisa okuphezulu noma indawo ephakeme kasawoti kumpofu. Ngaphezu kwalokho, i-HEC ayinandaba kangako ku-PH futhi ingasetshenziswa kuhlu lwe-PH lwe-2-12.

Umphumela wokuqina

I-HPMC inomphumela oqinile wokuqina futhi inokugcinwa kwamanzi okuhle nokuqina.

I-HEC futhi inomphumela omuhle wokuqina, kepha i-viscosity yayo ithinteke kakhulu yizinga le-shear futhi ikhombisa izici ezinciphayo.

Umsebenzi ongaphezulu

I-HPMC inomsebenzi othile ongaphezulu komhlaba futhi ingakhiqiza ama-emulsation amahle nemiphumela eyakha ifilimu.

I-HEC inomsebenzi ophansi ongaphezulu futhi ayinazo izakhiwo ezisobala ze-emulsation, kepha inezakhiwo ezinhle zefilimu.

3. Umehluko wesicelo

Inkambu yokwakha

I-HPMC isetshenziswa kabanzi ezintweni zokwakha, njenge-putty powder, i-tile anamathela, udaka, njll., Ikakhulukazi esetshenziselwa ukuthuthukisa ukugcinwa kwamanzi, ukumelana nokuqina.

I-HEC isetshenziswa kakhulu kupende we-latex nopende osuselwa emanzini njengomuntu omkhulu kanye ne-stabilizer ukukhulisa i-viscosity kanye ne-anti-sagging proceties yopende.

Insimu Yezemithi

I-HPMC isetshenziswa ikakhulukazi njengezinto ezihlanganayo, umenzeli wokukhishwa olawulwayo kanye ne-capsule Shell yamathebulethi enkambisi yezemithi.

I-HEC ayivamisile ukusetshenziswa kwinkambu yezemithi futhi ngezikhathi ezithile njenge-persener yokumiswa kwezidakamizwa.

Izimonyo nemikhiqizo yamakhemikhali yansuku zonke

I-HPMC isetshenziswa emikhiqizweni yokunakekelwa kwesikhumba kanye nama-detergents ukunikeza imikhiqizo engcono kakhulu yokuswayipha nokuqina kwe-emulsation.

I-HEC isetshenziswa kabanzi e-shampoo, i-gel ye-gel, njll. Ukuhlinzeka ngemiphumela yokuqina kanye nokumiswa.

Insimu yokudla

I-HPMC isetshenziswa njengesikhulu, i-emulsifier kanye ne-stabilizer ekudleni futhi isetshenziswa kabanzi ejelly, amasoso kanye nezimpahla ezibhakiwe.

I-HEC ayivame ukusetshenziswa embonini yokudla, kepha ingasetshenziswa njengesikhulu kwezinye iziphuzo nezinkokhelo.

4. Intengo nemakethe

I-HPMC ivame ukubiza kakhulu kune-HEC ngenxa yenqubo yayo eyinkimbinkimbi kanye nohlu olubanzi lokusetshenziswa. Inqubo yokukhiqiza ye-HEC ilula futhi isetshenziselwa ikakhulukazi ukuqina nokuzinza, ngakho-ke intengo iphansi.

IHydroxypropyl Methylcellulose (HPMC) neHydroxyyethyl cellulose (HEC) ngamunye anesakhiwo sabo esiyingqayizivele samakhemikhali nezakhiwo. I-KimaCell®HPMC ilungele kakhulu izimo ezinezidingo eziphezulu zokusebenza, inokugcinwa kwamanzi okungcono kanye nezakhiwo ezenziwe ngefilimu, futhi zinezinhlobo ezibanzi zezicelo. Ngakolunye uhlangothi, ngakolunye uhlangothi, kuvame ukusetshenziselwa ukugqoka, amakhemikhali nsuku zonke kanye nezinye izikhathi ezidinga ukuqina nokumiswa ngenxa yezindleko zayo eziphansi kanye nomphumela omuhle wokuqina. Ekukhetheni kwangempela, kufanele kwenziwe ukucatshangelwa okuphelele ngokusekelwe kwizidingo ezithile zokusebenza kanye nezindleko zezomnotho.