Ukunyibilika Okuphansi Kwe-Hydroxypropyl Cellulose Engashintshiwe

I-low-substituted hydroxypropyl cellulose (L-HPC) iphuma ku-cellulose, i-polymer yemvelo etholakala ezindongeni zamaseli ezitshalo.I-L-HPC ishintshiwe ukuze ithuthukise ukunyibilika kwayo nezinye izakhiwo, iyenze ibe yinto eguquguqukayo enezicelo eziningi ezimbonini zemithi, zokudla, nezimonyo.

I-Low-substituted hydroxypropylcellulose (L-HPC) iphuma endaweni ephansi ye-cellulose eshintshiwe ngokuyinhloko ukuze kuthuthukiswe ukunyibilika kwayo emanzini nakwezinye izincibilikisi.I-Cellulose iyi-polysaccharide eqondile eyakhiwe amayunithi e-glucose eningi ngokwemvelo futhi iyingxenye yesakhiwo sezindonga zamaseli ezitshalo.I-L-HPC ihlanganiswa nge-cellulose eshintsha amakhemikhali, yethula amaqembu e-hydroxypropyl ukuze ithuthukise ukunyibilika kwayo kuyilapho igcina ezinye zezinto ezifiselekayo ze-cellulose.

Isakhiwo samakhemikhali se-low-substituted hydroxypropyl cellulose

Isakhiwo samakhemikhali se-L-HPC siqukethe umgogodla we-cellulose kanye neqembu le-hydroxypropyl elixhunywe eqenjini le-hydroxyl (OH) leyunithi ye-glucose.I-degree of substitution (DS) ibhekisela enanini eliyisilinganiso lamaqembu e-hydroxypropyl ngeyunithi ngayinye ye-glucose ochungechungeni lwe-cellulose.Ku-L-HPC, i-DS igcinwa iphansi ngenhloso ukuze ibhalansise ukunyibilika okuthuthukisiwe nokugcina izakhiwo ze-cellulose.

Ukwenziwa kwe-low-substituted hydroxypropyl cellulose

Ukwenziwa kwe-L-HPC kuhilela ukusabela kwe-cellulose nge-propylene oxide phambi kwe-catalyst ye-alkali.Lokhu kusabela kuholela ekwethulweni kwamaqembu e-hydroxypropyl kumaketango e-cellulose.Ukulawula ngokucophelela izimo zokusabela, okuhlanganisa izinga lokushisa, isikhathi sokusabela, nokugxila kwe-catalyst, kubalulekile ukuze kuzuzwe izinga elifunekayo lokushintsha.

Izinto ezithinta ukuncibilika

1. Iziqu zokushintsha (DS):

I-solubility ye-L-HPC ithintwa i-DS yayo.Njengoba i-DS ikhula, i-hydrophilicity yeqembu le-hydroxypropyl iba sobala kakhulu, ngaleyo ndlela ithuthukise ukuncibilika emanzini kanye nezincibilikisi ze-polar.

2. Isisindo samangqamuzana:

Isisindo samangqamuzana e-L-HPC singesinye isici esibalulekile.Isisindo samangqamuzana aphezulu i-L-HPC ingase ibonise ukuncibilika okuncishisiwe ngenxa yokwanda kokuxhumana kwama-intermolecular kanye nokuthandelwa kweketango.

3. Izinga lokushisa:

Ukuncibilika ngokuvamile kukhuphuka ngezinga lokushisa ngenxa yokuthi amazinga okushisa aphezulu anikeza amandla engeziwe ukuze aphule amandla e-intermolecular futhi akhuthaze ukusebenzisana kwe-polymer-solvent.

4. Inani le-pH lesixazululo:

I-pH yesisombululo ithinta i-ionization yamaqembu e-hydroxypropyl.Kwezinye izimo, ukulungisa i-pH kungase kwenyuse ukunyibilika kwe-L-HPC.

5. Uhlobo lwe-solvent:

I-L-HPC ikhombisa ukuncibilika okuhle emanzini nasezincibilikisini ezihlukahlukene ze-polar.Ukukhethwa kwe-solvent kuncike ekusetshenzisweni okuqondile kanye nezakhiwo ezifunwayo zomkhiqizo wokugcina.

Ukusetshenziswa kwe-cellulose ephansi efakwe esikhundleni se-hydroxypropyl

1. Izidakamizwa:

I-L-HPC isetshenziswa kakhulu embonini yezemithi njenge-binder, i-disintegrant kanye ne-ejenti yokukhululwa elawulwayo ekwakhiweni kwethebhulethi.Ukuncibilika kwayo oketshezini lwamathumbu kuyenza ifaneleke izicelo zokulethwa kwezidakamizwa.

2. Imboni yokudla:

Embonini yokudla, i-L-HPC isetshenziswa njenge-thickener kanye ne-stabilizer emikhiqizweni ehlukahlukene.Ikhono layo lokwenza ijeli elicacile ngaphandle kokuthinta ukunambitheka noma umbala wemikhiqizo yokudla kwenza kube yigugu ekwakhiweni kokudla.

3. Izimonyo:

I-L-HPC isetshenziswa ekwenziweni kwezimonyo ngenxa yezakhiwo zayo zokwakheka kwefilimu nokujiya.Isiza ukuthuthukisa ukuzinza kanye nokuthungwa kwezimonyo ezifana nokhilimu, izinto zokugcoba namajeli.

4. Isicelo sokumboza:

I-L-HPC ingasetshenziswa njengento yokumboza ifilimu ezimbonini zemithi nezokudla ukuze kuhlinzekwe isendlalelo sokuvikela amaphilisi noma imikhiqizo ye-confectionery.

I-low-substituted hydroxypropyl cellulose iyi-polymer esebenza ngezindlela eziningi enokuncibilika okuthuthukisiwe etholakala ku-cellulose yemvelo etholakala ezitshalweni.Izakhiwo zayo eziyingqayizivele ziyenza ibe yigugu ezimbonini ezihlukahlukene ezihlanganisa ezemithi, ukudla nezimonyo.Ukuqonda izici ezithonya ukunyibilika kwayo kubalulekile ekuthuthukiseni ukusetshenziswa kwayo ezinhlelweni ezihlukene.Njengoba ucwaningo nokuthuthukiswa kwesayensi ye-polymer kuqhubeka, i-L-HPC nokunye okuphuma ku-cellulose okufanayo kungathola izinhlelo zokusebenza ezintsha neziqanjiwe emikhakheni eminingi.