HEC da HPMC

Hadin Hydroxyethyl Cellulose (HEC)kumaHydroxypropyl Methylcellulose (HPMC)Dukansu ƙwayoyin cellulose ne marasa ionic, waɗanda ke narkewa cikin ruwa waɗanda aka samo daga cellulose na halitta. Ana amfani da su sosai a masana'antu, magunguna, kulawa ta mutum, da aikace-aikacen abinci saboda kyawawan halayensu na kauri, samar da fim, daidaita, da kuma emulsion. Duk da yake suna da wasu kamanceceniya a asali da aiki, bambance-bambancen su a cikin tsarin sinadarai yana haifar da halaye da aikace-aikace na zahiri daban-daban.

1. Asali da Tsarin Sinadarai

Cellulose Ethers

An haɗa HEC da HPMC ta hanyar canza cellulose na halitta ta hanyar sinadarai, wanda wani polymer ne da ya ƙunshi raka'o'in β-D-glucose da aka haɗa ta hanyar haɗin β(1→4) glycosidic. Cellulose kanta ba ta narkewa a cikin ruwa, amma ta hanyar gyaran sinadarai, ana iya canza shi zuwa abubuwan da suka samo asali daga ruwa.

Hadin Hydroxyethyl Cellulose (HEC)

Ana samar da HEC ta hanyar yin maganin cellulose tare da ethylene oxide, ta hanyar gabatar da ƙungiyoyin hydroxyethyl (-CH2CH2OH) tare da sarkar polymer. Wannan gyare-gyaren yana ƙara narkewar ruwa kuma yana inganta ikon polymer don samar da mafita masu haske da kwanciyar hankali. Sauyawar tana faruwa ne musamman a wuraren hydroxyl (-OH) na sassan anhydroglucose a cikin sarkar cellulose.

Hydroxypropyl Methylcellulose (HPMC)

Ana haɗa HPMC ta hanyar haɗa cellulose tare da methyl chloride da propylene oxide, wanda ke haifar da maye gurbin ƙungiyoyin hydroxyl tare da ƙungiyoyin methoxy (-OCH3) da hydroxypropyl (-CH2CHOHCH3). Ana iya bambanta rabon abun ciki na methoxy zuwa hydroxypropyl don daidaita halayen polymer.

2. Sifofin Jiki

Narkewa

HEC: Yana narkewa a cikin ruwan zafi da sanyi, yana samar da mafita masu haske da ƙamshi. Ba ya narkewa a cikin yawancin sinadarai masu narkewa na halitta.

HPMC: Hakanan yana narkewa a cikin ruwan sanyi amma yana samar da gel idan aka dumama shi. Ba ya narkewa a cikin ruwan zafi amma yana kumbura kuma yana samar da gel mai juyewa idan aka dumama shi, wanda ke da amfani wajen isar da magunguna masu sarrafawa. Wasu ma'auni kuma suna iya narkewa a cikin sinadarai masu narkewa kamar ethanol ko acetone.

Danko

Ana iya ƙera HEC da HPMC a matakai daban-daban na danko. Maganin HEC gabaɗaya suna ba da haske mai yawa kuma ba sa jin zafi sosai. Danko na HPMC yana da ƙarfi sosai a cikin kewayon pH mai faɗi (3-11) kuma yana da kyakkyawan ɗabi'ar pseudoplastic (rage-thinning), wanda ke da amfani a cikin shafa da magunguna.

Gelation mai zafi

HEC: Ba ya nuna gelation mai zafi.

HPMC: Yana nuna gelation na thermal. Bayan dumamawa, ruwan polymer yana shiga wani mataki na canzawa, yana juyawa zuwa gel. Ana amfani da wannan a cikin tsarin abinci da magunguna.

3.Kayan Aiki

4. Aikace-aikace

Hadin Hydroxyethyl Cellulose (HEC)

Ana amfani da HEC sosai a aikace-aikace da ke buƙatar sarrafa danko da kuma daidaita shi, musamman a tsarin ruwa.

Fenti da Rufi: Ana amfani da shi azaman mai kauri da mai daidaita launi don hana sanya launin ya zama mai laushi da kuma inganta halayen amfani.

Kula da Kai: Ana samunsa a cikin shamfu, kayan gyaran gashi, da man shafawa saboda kauri da kuma gyaran fata.

Magunguna: Ana amfani da shi azaman abin ɗaurewa da kauri a cikin maganin shafawa na fata.

Gine-gine: A cikin siminti da turmi a matsayin wakili mai riƙe ruwa da kuma inganta aiki.

Sinadaran Filin Man Fetur: Ana amfani da su wajen haƙa ruwa don sarrafa danko da kuma hana asarar ruwa.

Hydroxypropyl Methylcellulose (HPMC)

HPMC sananne ne saboda sauƙin amfani da shi a cikin tsarin isar da magunguna masu ɗauke da sinadarin hydrophilic da kuma tsarin sakin magunguna masu sarrafawa da kuma a matsayin mai ɗaurewa ko fim.

Magunguna: Ana amfani da shi sosai a cikin allunan baki (a matsayin abin ɗaurewa, maganin shafawa, ko matrix former don ci gaba da fitarwa), maganin ido, da gels na shafawa.

Masana'antar Abinci: An amince da shi azaman ƙarin abinci (E464) kuma ana amfani da shi azaman mai kauri, mai narkewa, da mai daidaita abinci.

Ginawa: Ana amfani da shi a cikin busassun turmi, manne tayal, da kuma filasta don inganta riƙe ruwa, mannewa, da kuma iya aiki.

Kayan kwalliya: Ana amfani da shi a cikin man shafawa, gels, da digo na ido.

Fentin: Kamar HEC, ana amfani da shi a cikin hanyoyin da aka yi amfani da su a ruwa don sarrafa rheology

5.Bambance-bambancen Maɓalli

6. Tsaro da Dacewa da Halitta

Ana ɗaukar HEC da HPMC a matsayin masu aminci kuma ba sa da guba. Ba a sha su ta hanyar tsari idan aka yi amfani da su ta hanyar fata ko ta baki a cikin yawan da aka saba amfani da su. HPMC yana da matsayin GRAS (Generally Recognized as Safe) kuma ana amfani da shi sosai a masana'antun magunguna da abinci saboda kyakkyawan jituwa da yanayin halittu da kuma karɓar ƙa'idodi.

HEC kuma HPMC suna da amfani iri-iri, polymers masu narkewa cikin ruwa tare da halaye daban-daban waɗanda aka tsara don takamaiman buƙatun masana'antu da magunguna. Duk da cewa duka biyun suna ba da kyawawan ayyuka na kauri da daidaitawa, HPMC ta shahara a aikace-aikacen magunguna da abinci saboda haɗakar zafi da kuma jituwa ta halitta. A gefe guda kuma, HEC ta fi yawa a aikace-aikacen ruwa kamar fenti da kayan kwalliya saboda tsabta da daidaitonsa a cikin tsarin ruwa.