Unjani Hppmc?

I-HydroxyPOpyl Methylcelcelsele (i-HPMC) yi-polymer eguquguqukayo esetyenziswa ngokubanzi kumashishini ahlukeneyo, kubandakanya amayeza, cosmetics, ukutya, nokwakhiwa. Ukukwazi kwayo ukwenza ii-galls, iifilimu, kunye nezisombululo zenza ukuba zixabiseke kwizicelo ezininzi. Ubushushu be-HPMC linyathelo elibalulekileyo kwiinkqubo ezininzi, njengoko iyenza ukuba ipolymer ibonise iipropathi zayo ezinqwenelekayo ngokufanelekileyo.

1. Ukuqonda i-HPMC:

I-HPMC yindawo yokukhutshwa kweselpulose kwaye idityaniswe ngokunyanga isellulose nge-proplone oxide kunye ne methyl chloride. Iphawulwa ngamanzi ayo-ukulingana kwawo kunye nokukwazi ukwenza ii-geses ezibonakalayo, eziguqukayo. Inqanaba le-hydroxypropy ye-hydropyl kunye ne-APEXGYL ichaphazela iipropathi zayo, kubandakanya ukubenzela amandla, i-viscosity, kunye nokuziphatha kwenqanawa.

2. Ukubaluleka kwe-hydration:

I-hydration ibalulekile ukuvula imisebenzi ye-HPMC. Xa i-HPMC i-hpydy, ifumana amanzi kunye nokuhlanjwa, kukhokelela ekusekweni kwesisombululo se-viscous okanye ijeli, kuxhomekeke kuxinzelelo kunye neemeko. Eli hlaselo lisebenza i-HPMC ukwenza imisebenzi yalo elungiselelwe, njengokuthamba, ukugcwala, ukwenza ifilimu, kunye nokuxhasa ukukhutshwa kweziyobisi.

I-3. Iindlela zokwenza hydration:

Kukho iindlela ezininzi ze-hpmcrafting hpmc, kuxhomekeke kwisicelo kunye nesiphumo esifunwayo:

a. Ukusasazwa kwamanzi okubandayo:
Le ndlela ibandakanya ukusasaza i-hpmc powder emanzini ebandayo ngelixa ishukumisa ngobumnene.
Ukusasazwa kwamanzi okubandayo kukhethwa ukuthintela ukungcola kunye nokuqinisekisa ukuntywila.
Emva kokusasazeka, isisombululo sivunyelwe ukuba sihambe ngokukhawuleza phantsi kwengxaki kanti ukufezekisa i-vickosity oyifunayo.

b. Ukusasazeka kwamanzi ashushu:
Kule ndlela, i-HPMC powder ichithwe kumanzi ashushu, ngokuqhelekileyo kubushushu ngaphezulu kwe-80 ° C.
Amanzi ashushu aququzelela ngokukhawuleza okungxamisekileyo kunye nokuchithwa kwe-HPMC, okukhokelela kwisisombululo esicacileyo.
Kufuneka kuthathwe ukhathalelo ukuthintela ukufudumeza okugqithisileyo, onokuphelisa i-hpmc okanye ibangele ukwenziwa kwempuku.

c. Ukungathathi cala:
Ezinye izicelo zinokubandakanya ukungathathi cala izisombululo ze-HPMC kunye ne-Alkali Agents njenge-sodium hydroxide okanye potassium hydroxide.
Ukungathathi cala kulungelelanisa i-PH yesisombululo, enokuba nefuthe kwi-viscofity kunye neepropathi zokurhafisa ze-HPMC.

d. UTSHINTSHO LOKUGQIBELA:
I-HPMC inakho ukuba i-hyddy i-hyddy ngotshintsho lwe-Solvent, apho ichithwayo kwisimo sezulu esiphosakeleyo njenge-ethanol okanye i-methanol kwaye itshintshiwe ngamanzi.
Utshintsho olwenziweyo lunokuba luncedo kwizicelo ezifuna ulawulo oluchanekileyo ngaphezulu kwe-hydration kunye ne-viscosity.

e. Ngaphambi kwe-hydration:
I-Phydration ibandakanya ukugxotha i-HPMC emanzini okanye kwi-solvent ngaphambi kokuba ikwazi ukumiliselwa.
Le ndlela iqinisekisa ukubamba ngokucokisekileyo kwaye inokuba yingenelo ekufezekiseni iziphumo ezingaguqukiyo, ngakumbi ngokwamiswa.

4. IMIQATHANGO EYAFUMANEKA I-hyddration:

Iindlela ezininzi zinefuthe kwi-hpmc:

a. Ubungakanani bentsumpa

b. Iqondo lokushisa: Amaqondo obushushu aphezulu akhawulezisa i-hydration kodwa unokuchaphazela i-viscofity kunye nokuziphatha kwe-HPMC.

c. Ph: I-PH ye-hydration inokuchaphazela imeko ye-ionsis ye-HPMC kwaye ngenxa yoko i-kineration ye-hinerations yayo kunye neepropathi ze-rureologries.

d. Ukuxuba: Ukuxuba okufanelekileyo okanye ukuphazamiseka kubalulekile ukuba kuhambelane nokusasazwa kwamasuntswana e-HPMC kwi-solvent.

e. Uxinzelelo: Ukuxinana kwe-HPMC kwi-Hydration Proneration Iphembelela i-vickosity, amandla egenti, kunye nezinye iipropathi zesisombululo okanye ijeli.

5. Izicelo:

I-HPMC eHydrated HPMC ifumana izicelo ezahlukileyo kumashishini ahlukeneyo:

a. Ifomu yamayeza: Kwingubo yetayitile, iMatriki ekhokelayo-elawula iMatriki, izisombululo ze-Ophthalmic, kunye nokumiswa.

b. Iimveliso zokutya: Njengomntu osisitya, i-sticker, okanye iarhente yokwenza ifilimu kwisosi, ukunxiba, iimveliso zobisi, kunye nezologoso.

c. I-Cosmetics: Kwikhrim, i-lotions, i-gels, kunye nezinye iindlela zokuguqulwa kwe-viscosity kunye nokutsalwa kwe-exols.

d. Izixhobo zokwakha: kwiimveliso ezisekwe kwimo yesamente, ezinamachaphaza eetraki, kwaye zisebenzele ukuphucula ukusebenza, ukugcinwa kwamanzi, kunye nokunamathela.

6. Ulawulo loMgangatho:

Ukusebenza okusebenzayo kwe-HPMC kubalulekile ekusebenzeni kwemveliso kunye nokungaguquguquki. Amanyathelo olawulo esemgangathweni anokubandakanya:

a. Uhlalutyo lwe-paundlicle uhlalutyo

b. IMilinganiselo ye-Viscosity: Ukubeka iliso kwi-viscofity ye-hydration ukufezekisa ukungqinelana okufunekayo kwisicelo esicetywayo.

c. Ukubek'esweni kwe-PH: Ukulawula i-PH ye-hydration yendawo yokwandisa i-hydration kunye nokuthintela ukonakaliswa.

d. Uviwo lwe-Microscopic: Uvavanyo olubonakalayo lweesampulu ezinamanzi phantsi kwe-microscope yokuvavanya ukusasazeka kunye nokugcina.

7. Ukuqukumbela:

I-hydration yinkqubo esisiseko ekuhlanganiseni iipropathi ze-HPMC yezicelo ezahlukeneyo. Ukuqonda iindlela, izinto, kunye namanyathelo olawulo esemgangathweni onxulunyaniswa nokuhamba kwe-hydration kubalulekile ukuze kuqinisekiswe ukusebenza kwemveliso kunye nokuqinisekisa ukungqinelana kwenkqubo. Ngokusebenzisana i-HPMC, abaphandi kunye neefomula zinokuvula amandla ayo apheleleyo kuluhlu olubanzi lwamashishini, ukuqhuba nophuhliso lwemveliso.