Uyini umehluko phakathi kwe-hydroxypropproses ephansi ephansi ne-hydroxypropyl celtuleose?

I-Hydroxyproppropyllopyllopyllopyllopyllopyllopylls (L-HPC) ne-Hydroxypropyllls (HPC) iyi-cellulose decivativeves esetshenziswa kabanzi kumakhamithi, ukudla kanye namanye amasimu wezimboni. Naphezu kokufana kwabo nezinhlaka zamakhemikhali kanye nezicelo, zinokwehluka okukhulu ngokwezinga elithile, izakhiwo ezibonakalayo, ukulekelela kanye nezindawo zohlelo lokusebenza.

1. Isakhiwo samakhemikhali kanye nezinga lokufaka esikhundleni
I-Hydroxypropylcelcellulose (HPC) ingumkhiqizo otholwe ngemuva kokuthezeka okuyingxenye ye-cellulose, lapho amanye amaqembu e-hydroxyl athathelwa indawo ngamaqembu ama-hydroxypropyl. Izinga lokufakwa esikhundleni (elivame ukuvezwa njengezinga le-molar lokufaka esikhundleni sokufakwa esikhundleni, okungukuthi, inani eliphakathi lamaqembu afakwa esikhundleni se-hydroxypropyl ngento ebalulekile ethinta ukusebenza kwe-HPC. I-HPC inezinga eliphakeme lokufakwa esikhundleni, imvamisa phakathi kuka-3.0 no-4,5, okusho ukuthi iningi lamaqembu ama-hydroxyly athathelwa indawo amaqembu we-hydroxypropyly.

I-hydroxypropylcellellose (L-HPC) ephansi nayo ilungiswa ngokusabela okufanayo kokuthembela, kepha izinga lawo lokufaka esikhundleni liphansi, imvamisa phakathi kuka-0,1 no-0.2. Ngakho-ke, amaqembu e-HYDROXY ye-L-HPC afakwa esikhundleni senani elincane lamaqembu ama-hydroxypropyl, kanti inani lamaqembu angenawo ama-hydroxyl likhudlwana. Lesi sigaba esiphansi sokufaka esikhundleni senza i-L-HPC yehluke ku-HPC ezizakhiweni zomzimba nangamakhemikhali.

2. I-Solubity
Ngenxa umehluko ngezinga elithile lokufaka esikhundleni, i-solubity ye-HPC ne-L-HPC ikhombisa umehluko omkhulu. I-HPC iyanyibilika futhi ingachithwa emanzini abandayo noma ashisayo ukwakha isixazululo esicacile se-viscous. Iphinde ibe ne-solubility enhle kuma-solvents we-polar organic solvents. Lokhu kuSolubity kwenza i-HPC ivame ukusetshenziswa njenge-solubililizer, isikhungo noma i-ejenti ye-gelling emiseleni.

Ngokuphambene, i-L-HPC inezindawo ezahlukahlukene ze-soubity ngenxa yezinga layo eliphansi lokungena esikhundleni. I-L-HPC iyi-insoluble emanzini, kepha inekhono elihle lokuvuvukala kwamanzi emanzini futhi lingakha ijeli. Le mpahla ye-L-HPC ivumela ukuthi isetshenziswe njengokuqhekeka noma i-filler kumathebulethi, isiza umuthi ekuqhekekeni ngokushesha futhi ukhiphe emanzini.

3. Izakhiwo ezibonakalayo
I-HPC imvamisa ikhombisa ukubonakala okuphezulu kanye nezakhiwo ezenziwe ngefilimu ngenxa yezinga eliphakeme lokufakwa esikhundleni kanye ne-solubity. Izixazululo ze-HPC zingakha amafilimu aqinile ngemuva kokomiswa ngakho-ke zivame ukusetshenziswa ku-Coatings, kwakha amafilimu nezinto zokwakha. Ngaphezu kwalokho, i-HPC nayo inokuqina okuhle okushisayo kanye nokumelana kawoyela, okwenza kube lula ukuthola izicelo ezidinga amandla amahle omzimba kanye nokuqina kwamakhemikhali.

I-L-HPC ikhombisa ukubonakala okuphansi kanye nokufakwa kwamanzi okuphezulu ngenxa yezinga layo eliphansi lokufaka esikhundleni. Ukufakwa kwayo kwalo emanzini kanye nezindawo ezinhle zokuvuvukala zikunikeza izinzuzo ezihlukile ekukhiqizeni ithebhulethi. I-L-HPC ingadonsa amanzi nokudumba, ngaleyo ndlela kukhuthaza ukuhlukaniswa kwethebhulethi kanye nokukhishwa kwezidakamizwa. Le mpahla yokuqhekeka yenza i-L-HPC isetshenziswe kabanzi njengezisehlakalo embonini yezemithi.

4. Izindawo zohlelo lokusebenza
I-HPC isetshenziswa kabanzi kumakhamithi, ukudla, izimonyo kanye nezinye izinkambu zezimboni ngenxa ye-solubity yayo enhle, amakhono okwakha amafilimu nawokuqubuka. Ensimini yezemithi, i-HPC ivame ukusetshenziswa njengomuntu omkhulu, i-ejenti ye-gelling, i-solubilizer, membrane impahla kanye nenkampani yezidakamizwa. Ngaphezu kwalokho, i-HPC nayo isetshenziswa ekudleni njengoMkhulu futhi i-Emulsifier, kanye nezimonyo kanye ne-ejenti eyakha amafilimu kanye ne-moisturizer.

I-L-HPC isetshenziswa ikakhulukazi embonini yezemithi, ikakhulukazi lapho kulungiswa amaphilisi. Njengokuqhekeka okusebenzayo, kungakhuphula ijubane lokuhlakazeka kwamathebulethi futhi kukhuthaze ukukhishwa kwezidakamizwa, ngaleyo ndlela kuthuthukise ukungatholakali kwezidakamizwa. Ngaphezu kwalokho, i-L-HPC ingaphinde isetshenziswe njenge-filler futhi ikhuphukile ukuthuthukisa ubunzima nokuqina kwamathebulethi.

5. Izibonelo zohlelo lokusebenza
Embonini yezemithi, i-HPC ivame ukusetshenziselwa ukulungiselela ukwakheka okulawulwa okulawulwayo. Ingalawula isilinganiso sokukhishwa kwezidakamizwa ngokwakha ungqimba lwe-gel olusezingeni elifanele, ngaleyo ndlela letha isikhathi sesenzo sezidakamizwa. Izicelo ezejwayelekile zifaka ama-ejenti wokukhishwa alawulwayo kumathebulethi akhululwe kabusha kanye nama-caplule.

I-L-HPC isetshenziswa kabanzi emathebheni akhululwe ngokushesha njengokuqhekeka. Isibonelo, kumiyalo yethebhulethi ekhishwa ngokushesha ngokushesha, ukungezwa kwe-L-HPC kungafushanisa kakhulu isikhathi samathebulethi ukuze ahlukanise emzimbeni, ngaleyo ndlela esheshisa ukuqala kwesenzo somuthi.

6. Umthelela Wezemvelo nokuphepha
Kokubili i-HPC ne-L-HPC kutholakala okuvela ku-cellulose yemvelo ngakho-ke yiba ne-biodegrade enhle kanye nobungane bezemvelo. Zibolile kalula endaweni yemvelo futhi zinomthelela omncane endaweni yemvelo. Ngaphezu kwalokho, zombili zibhekwa njengezinto eziphephile futhi zisetshenziswa kabanzi ekwakheni ukudla kanye nemithi.

Yize i-hydroxypropproppropylls ephansi (L-HPC) ne-Hydroxypropylllulose (HPC) yimikhiqizo eguquliwe ye-cellulose, ngenxa yokwehluka kuma-degrees afaka, izakhiwo zemvelo kanye nezinkundla zohlelo lokusebenza. Kuhluke kakhulu. I-L-HPC isetshenziswa ikakhulukazi enkambini yezemithi ngenxa yezakhiwo zayo ezinhle kakhulu zokuqhekeka, ngenkathi i-HPC isetshenziswa kabanzi ezemithi, ukudla, izimonyo kanye nezinye izinkambu ngenxa ye-solubity yayo enhle nezakhiwo ezenziwe ngefilimu. Umehluko phakathi kwalawa manga amabili emphumeleni we-degree yokufaka esikhundleni sezakhiwo ezingokomzimba nangamakhemikhali, ngaleyondlela enquma ukufaneleka kwawo kwezicelo ezihlukile.