Gamuwa tsakanin hydroxyethyl cellulose da ruwa na tushen rufi

Menene Hydroxyethyl Cellulose?
Hydroxyethyl cellulose (HEC), fari ko haske rawaya, wari, mara guba fibrous ko powdery m, shirya ta etherification dauki alkaline cellulose da ethylene oxide (ko chlorohydrin), nasa ne Nonionic soluble cellulose ethers. Tun da HEC yana da kyawawan kaddarorin thickening, suspending, dispersing, emulsifying, bonding, film-forming, kare danshi da kuma samar da colloid m, an yi amfani da ko'ina a cikin man fetur bincike, coatings, yi, magani, abinci, yadi, papermaking da polymer Polymerization. da sauran fagage.

Hydroxyethyl cellulose ana amfani dashi sosai a masana'antar shafa, bari mu kalli yadda yake aiki a cikin sutura:

Menene zai faru lokacin da hydroxyethyl cellulose ya hadu da fenti na tushen ruwa?

A matsayin surfactant ba ionic ba, hydroxyethyl cellulose yana da kaddarorin masu zuwa ban da kauri, dakatarwa, ɗaure, iyo, yin fim, watsawa, riƙe ruwa da samar da colloid mai kariya:

HEC yana narkewa a cikin ruwan zafi ko ruwan sanyi, babban zafin jiki ko tafasa ba tare da hazo ba, don haka yana da nau'i mai yawa na solubility da halayen danko, da kuma gelation maras zafi;

Ƙarfin ajiyar ruwa ya ninka na methyl cellulose sau biyu, kuma yana da mafi kyawun tsarin tafiyar da ruwa;

Ba shi da ionic kuma yana iya zama tare da ɗimbin kewayon sauran polymers masu narkewar ruwa, surfactants, da gishiri. Yana da kyau kwarai colloidal thickener ga high-tattara electrolyte mafita;

Idan aka kwatanta da gane methyl cellulose da hydroxypropyl methyl cellulose, da dispersing ikon HEC ne mafi muni, amma m colloid ikon ne mafi karfi.

Tunda hydroxyethyl cellulose da aka bi da shi yana da foda ko fibrous mai ƙarfi, ya kamata a bi abubuwan da ke gaba yayin shirya ruwan innabi na hydroxyethyl cellulose:

(1) Kafin da kuma bayan ƙara hydroxyethyl cellulose, dole ne a ci gaba da motsawa har sai bayani ya zama cikakke kuma bayyananne.
(2) Dole ne a zazzage shi a hankali a cikin tanki mai hadewa, kuma kada a sanya adadi mai yawa ko kuma a sanya hydroxyethyl cellulose kai tsaye a cikin tankin hadawa.
(3) Ruwan zafin jiki da ƙimar PH a cikin ruwa suna da alaƙa mai mahimmanci tare da rushewar hydroxyethyl cellulose, don haka dole ne a biya kulawa ta musamman.
(4) Kada a ƙara wasu abubuwa na alkaline a cikin cakuda kafin a jika foda hydroxyethyl cellulose da ruwa. Kiwon pH bayan wetting yana taimakawa wajen narkewa.
(5) Kamar yadda zai yiwu, ƙara wakili na antifungal a gaba.
(6) Lokacin amfani da high-viscosity hydroxyethyl cellulose, maida hankali na uwa barasa kada ya zama sama da 2.5-3% (ta nauyi), in ba haka ba uwar barasa zai yi wuya a rike.