Bambanci Tsakanin HEC da EC

HEC da EC nau'i biyu ne na ethers cellulose tare da kaddarorin da aikace-aikace daban-daban.HEC yana nufin hydroxyethyl cellulose, yayin da EC ke tsaye ga ethyl cellulose.A cikin wannan labarin, za mu tattauna bambance-bambance tsakanin HEC da EC dangane da tsarin sinadaran su, kaddarorinsu, amfani, da aminci.

1. Tsarin Sinadarai

HEC da EC suna da nau'ikan sinadarai daban-daban waɗanda ke ba su kaddarorin daban-daban.HEC shine polymer mai narkewa da ruwa wanda aka samo daga cellulose.Yana da ether cellulose da aka gyara wanda ke da ƙungiyoyin hydroxyethyl a haɗe zuwa kashin bayan cellulose.Matsayin maye gurbin (DS) na HEC yana nufin adadin ƙungiyoyin hydroxyethyl waɗanda ke kasancewa a cikin rukunin anhydroglucose (AGU) na kashin bayan cellulose.DS na HEC na iya kewayo daga 0.1 zuwa 3.0, tare da ƙimar DS mafi girma da ke nuna babban mataki na maye gurbin.

EC, a daya bangaren, shi ne wani ruwa-insoluble polymer wanda kuma aka samu daga cellulose.Yana da ether cellulose da aka gyara wanda ke da ƙungiyoyin ethyl a haɗe zuwa kashin bayan cellulose.DS na EC yana nufin adadin ƙungiyoyin ethyl waɗanda suke a kowace AGU na kashin baya na cellulose.DS na EC na iya kewayo daga 1.7 zuwa 2.9, tare da mafi girman ƙimar DS da ke nuna babban matsayi na maye gurbin.

2. Kayayyaki

HEC da EC suna da kaddarorin daban-daban waɗanda ke sa su dace da aikace-aikace daban-daban.Wasu mahimman kaddarorin HEC da EC an jera su a ƙasa:

a.Solubility: HEC yana da narkewa sosai a cikin ruwa, yayin da EC ba ta iya narkewa a cikin ruwa.Koyaya, ana iya narkar da EC a cikin abubuwan kaushi na halitta kamar ethanol, acetone, da chloroform.

b.Rheology: HEC wani abu ne na pseudoplastic, wanda ke nufin cewa yana nuna hali mai laushi.Wannan yana nufin cewa danko na HEC yana raguwa yayin da yawan raguwa ya karu.EC, a gefe guda, abu ne na thermoplastic, wanda ke nufin cewa ana iya yin laushi da gyare-gyare lokacin zafi.

c.Abubuwan da ke samar da fina-finai: HEC yana da kyawawan kayan aikin fim, wanda ya sa ya dace da amfani da su a cikin sutura da fina-finai.EC kuma yana da kaddarorin shirya fina-finai, amma fina-finan na iya zama masu karye kuma suna iya fashewa.

d.Ƙarfafawa: HEC yana da kwanciyar hankali akan nau'in pH da yanayin zafi.EC kuma yana da ƙarfi akan kewayon pH mai faɗi, amma yanayin zafi na iya shafar kwanciyar hankali.

3. Amfani

Ana amfani da HEC da EC a cikin aikace-aikace masu yawa a cikin abinci, magunguna, da masana'antun kulawa na sirri.Wasu daga cikin mahimman amfani da HEC da EC an jera su a ƙasa:

a.Masana'antar abinci: HEC galibi ana amfani da ita azaman mai kauri, stabilizer, da emulsifier a cikin samfuran abinci kamar miya, riguna, da kayan gasa.Ana amfani da EC azaman abin rufe fuska don samfuran abinci kamar taunawa, kayan zaki, da kwayoyi.

b.Masana'antar harhada magunguna: Ana amfani da HEC azaman mai ɗaure, rarrabuwa, da wakili mai suturar kwamfutar hannu a cikin ƙirar magunguna.Ana amfani da EC azaman ɗaure, wakili mai sutura, da wakili mai dorewa a cikin ƙirar magunguna.

4. Tsaro

HEC da EC gabaɗaya ana ɗaukar lafiya don amfani a aikace-aikacen abinci da magunguna.Koyaya, kamar kowane sinadari, ana iya samun wasu haɗari masu alaƙa da amfani da su.Yana da mahimmanci a bi ƙa'idodin da aka ba da shawarar don amfani da HEC da EC don tabbatar da aminci da ingantaccen amfani.