HydroxyAythyl Cellulose (HEC) ni polymer itari ionic, ikomanga amazi akomoka kuri selile, uko bisanzwe polymer biboneka mu nkuta z'akagari z'ibimera. Bikoreshwa cyane mu nganda zinyuranye nka farucetique, kwisiga, gushushanya, kumena, n'ibicuruzwa byibiribwa bitewe n'imitungo yihariye nko kubyimba, no kugumana amazi. Ariko, kuganira kuri PH agaciro ka HEC bisaba gusobanukirwa kwagutse kumitungo yayo, imiterere, na porogaramu.
Gusobanukirwa hydroxyyerthyl selile (hec):
1. Imiterere yimiti:
HEC ihuzwa na selipi ya selile hamwe na etylene okiside, bikaviramo gutangiza amatsinda ya hydroxyyerthyl (-ch2ch2oh) kuri selile.
Urwego rwo gusimbuza (DS) bivuga impuzandengo y'imibare ya hydroxyyerthyl kuri Glucose ishami rya selile kandi igena imitungo ya Hec. Indangagaciro za DS zinyuranye zo kongera amazi yo kwiyongera no hejuru.
2. Ibintu:
HEC irashonje mumazi kandi ikora ibisubizo byumvikana, bituma bikwiranye na porogaramu zitandukanye zisaba ibintu biboneye.
Iyerekana imyitwarire ya pseudoplastique, bivuze ko vicosity yayo igabanuka munsi yo guhagarika imihangayiko, yemerera gusaba byoroshye no gutunganya.
Ibyamamare bya luc ibisubizo byatewe nibintu nkibitekerezo, ubushyuhe, PH, no kuba hari umunyu cyangwa izindi nyandiko.
3. Gusaba:
Farumasiti: Hec ikoreshwa nkuwabyimbye kandi ikingamiro mubikorwa byo mu kanwa no hejuru nkibintu, amavuta, amavuta, hamwe no guhagarikwa.
Kwisiga: Ni ibintu bisanzwe mubicuruzwa byitaweho harimo shampos, amavuta, na cream bitewe no kubyimba no guhindagura ibintu.
Irangi n'amakoti: Hec yongewe ku gushushanya, amarangi, no kwizihiza kugirango agenzure viso, atezimbere imitungo, no kuzamura bwa firime.
Inganda zibiribwa: Mu bicuruzwa, Hec ikora nk'igituba, stabilizer, na emalifier mubintu nkibihusi, imyambarire, nibikomoka ku mata.
PH agaciro ka hydroxyyeryl selile (hec):
1. PH kwishingikiriza:
PH yibisubizo ikubiyemo HEC irashobora guhindura imyitwarire yacyo nibikorwa muburyo butandukanye.
Mubisanzwe, hec irahagaze hejuru ya ph ebyiri, mubisanzwe hagati ya PH 2 na PH 12. Ariko, ibintu bikabije PH bishobora kugira ingaruka kumitungo yayo no gushikama.
2. Ingaruka za PH kuri viscosity:
Kugaragaza Ibisubizo bya Hec birashobora kuba PH-biterwa, cyane cyane hejuru cyangwa hejuru ya PH.
Hafi ya PH (PH 5-8), ibisubizo bya hec mubisanzwe byerekana ubukuru bwabo.
Mugihe gito cyangwa hejuru ya PH PH, umugongo wa selile ushobora guhura na hydrolysis, bikaviramo kugabanuka kwa vinosi no gutuza.
3. Guhindura:
Muburyo bwa PH Guhindura ni ngombwa, buffers ikunze gukoreshwa mugukomeza ph yifuzwa.
Amaduffa rusange nka citrate cyangwa fosifari ya fosika ihuye na HEC kandi ifasha gutuza imitungo yayo muri PH yihariye.
4. Ibitekerezo byo gusaba:
Abashinzwe gushimusha bagomba gutekereza kuri PH guhuza HCC hamwe nibindi bikoresho muri forlation.
Rimwe na rimwe, guhinduka kuri PH ya formulation birashobora gusabwa kugirango utezimbere imikorere ya HEC.
Hydroxyyeryl selile (hec) ni polymer itandukanye hamwe na porogaramu nyinshi mu nganda zitandukanye. Mugihe gushikama kwa PH muri rusange bikomeye cyane, urugero rwa PH rushobora guhindura imikorere yayo no gutuza. Gusobanukirwa PH Kwishingikiriza kuri HEC ni ngombwa mugutegura ibicuruzwa bifite akamaro kandi bihamye muri farumasi, kwisiga, gushushanya, gushushanya, nibicuruzwa byibiribwa. Mugusuzuma pH guhuza no gukoresha ingamba zikwiye, HEC irashobora gukomeza gukora nk'ibikoresho by'agaciro mu buryo butandukanye.
Igihe cyo kohereza: APR-15-2024