Niki pH agaciro ka hydroxyethyl selulose

Hydroxyethyl selulose (HEC) ni polymer idafite ionic, ibora amazi-elegitoronike ikomoka kuri selile, polymer isanzwe ibaho iboneka murukuta rw'utugingo ngengabuzima. Ikoreshwa cyane mu nganda zitandukanye nka farumasi, kosmetika, amarangi, ibifunga, nibicuruzwa byibiribwa kubera imiterere yihariye nko kubyimba, gutuza, hamwe nubushobozi bwo gufata amazi. Ariko, kuganira kuri pH agaciro ka HEC bisaba gusobanukirwa byimazeyo imiterere, imiterere, nibisabwa.

Gusobanukirwa Hydroxyethyl Cellulose (HEC):

1. Imiterere yimiti:

HEC ikomatanyirizwa hamwe na reaction ya selile hamwe na okiside ya Ethylene, bigatuma habaho amatsinda ya hydroxyethyl (-CH2CH2OH) kumugongo wa selile.

Urwego rwo gusimbuza (DS) bivuga impuzandengo y'amatsinda ya hydroxyethyl kumatsinda ya glucose murwego rwa selile kandi ikagena imiterere ya HEC. Indangagaciro za DS zo hejuru ziganisha ku kwiyongera kwamazi no kugabanuka kwinshi.

2. Ibyiza:

HEC irashonga mumazi kandi ikora ibisubizo bisobanutse, ibyo bigatuma iboneka mubikorwa bitandukanye bisaba ibisobanuro biboneye.

Yerekana imyitwarire ya pseudoplastique, bivuze ko ububobere bwayo bugabanuka mukibazo cyogosha, bigatuma byoroshye gukoreshwa no kubikemura.

Ubukonje bwibisubizo bya HEC buterwa nibintu nko kwibanda, ubushyuhe, pH, no kuba umunyu cyangwa ibindi byongeweho.

3. Gusaba:

Imiti ya farumasi: HEC ikoreshwa nkibyimbye na stabilisateur mu miti yo mu kanwa no mu rwego rwo hejuru nka mavuta, amavuta, hamwe no guhagarika.

Amavuta yo kwisiga: Nibintu bisanzwe mubicuruzwa byumuntu ku giti cye birimo shampo, amavuta yo kwisiga, hamwe na cream kubera kubyimbye no kumera.

Irangi hamwe na Coatings: HEC yongewe kumarangi, gutwikisha, hamwe nugufata kugirango igabanye ububobere, kunoza imiterere, no kuzamura firime.

Inganda zikora ibiribwa: Mubicuruzwa byibiribwa, HEC ikora nk'ibyimbye, stabilisateur, na emulisiferi mubintu nka sosi, imyambarire, n'ibikomoka ku mata.

pH Agaciro ka Hydroxyethyl Cellulose (HEC):

1. pH Kwishingikiriza:

PH yumuti urimo HEC irashobora guhindura imyitwarire nimikorere mubikorwa bitandukanye.

Mubisanzwe, HEC ihagaze neza mugice kinini cya pH, mubisanzwe hagati ya pH 2 na pH 12. Nyamara, imiterere ya pH ikabije irashobora kugira ingaruka kumiterere no gutuza.

2. pH Ingaruka kuri Viscosity:

Ubukonje bwibisubizo bya HEC burashobora kuba pH-biterwa cyane cyane kurwego rwo hejuru cyangwa ruto pH.

Hafi ya pH itabogamye (pH 5-8), ibisubizo bya HEC mubisanzwe byerekana ubwiza bwabyo.

Ku giciro gito cyane cyangwa kinini cya pH, umugongo wa selile urashobora gukorerwa hydrolysis, bigatuma kugabanuka kwijimye no gutuza.

3. pH Guhindura:

Mubisobanuro aho pH ihinduka bikenewe, buffers zikoreshwa mugukomeza urwego pH yifuza.

Buffer zisanzwe nka citrate cyangwa fosifate buffers zirahuza na HEC kandi zifasha guhagarika imitungo yayo murwego runaka rwa pH.

4. Ibitekerezo byo gusaba:

Abashinzwe gutegura bagomba gutekereza kuri pH ihuza HEC nibindi bikoresho mubitegura.

Rimwe na rimwe, ibyahinduwe kuri pH yuburyo bushobora gusabwa kugirango imikorere ya HEC ihindurwe.

Hydroxyethyl selulose (HEC) ni polymer itandukanye kandi ikoreshwa cyane mubikorwa bitandukanye. Mugihe pH ihagaze neza muri rusange irakomeye murwego runini, pH ikabije irashobora guhindura imikorere yayo no guhagarara neza. Gusobanukirwa pH biterwa na HEC ningirakamaro mugutegura ibicuruzwa byiza kandi bihamye mumiti yimiti, kwisiga, amarangi, ibifunga, nibicuruzwa byibiribwa. Urebye guhuza pH no gukoresha ingamba zifatika, HEC irashobora gukomeza gukora nkibintu byingenzi muburyo butandukanye bwa porogaramu.