Hydroxyethyl cellulose (HEC)fari ne ko haske rawaya, mara wari, ba mai guba fibrous ko powdery m, wanda aka shirya ta etherification dauki na alkaline cellulose da ethylene oxide (ko chlorohydrin). Nonionic soluble cellulose ethers. Bayan kauri, dakatarwa, ɗaure, iyo, shirya fim, tarwatsawa, riƙe ruwa da samar da colloid mai kariya, yana da kaddarorin masu zuwa:
1. 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;
2. Ba shi da ionic kuma yana iya zama tare da wasu nau'o'in polymers masu narkewa da ruwa, surfactants, da salts. Yana da kyau kwarai colloidal thickener ga high-tattara electrolyte mafita;
3. Ƙarfin ajiyar ruwa ya ninka sau biyu fiye da na methyl cellulose, kuma yana da mafi kyawun tsari.
4. 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. Saboda kyawawan kaddarorin sa na thickening, suspending, dispersing, emulsifying, adhering, film-forming, kare danshi da kuma samar da colloid m, HEC da aka yadu amfani da man fetur, coatings, yi, magani, abinci, yadi, takarda da kuma polymer Polymerization. da sauran fagage.
Matakan kariya:
Tun da surface-treated hydroxyethyl cellulose foda ne ko cellulose m, yana da sauƙi a rike da narkar da shi a cikin ruwa muddin ana kula da abubuwa masu zuwa. da
1. Kafin da kuma bayan ƙara hydroxyethyl cellulose, dole ne a ci gaba da motsawa har sai bayani ya kasance cikakke kuma bayyananne. da
2. Dole ne a hankali a hankali a cikin tanki mai hadewa, kada kai tsaye ƙara yawan adadin hydroxyethyl cellulose ko hydroxyethyl cellulose wanda ya kafa lumps da bukukuwa a cikin tanki mai haɗuwa. da
3. Ruwan zafin jiki da darajar PH a cikin ruwa suna da dangantaka mai mahimmanci ga rushewar hydroxyethyl cellulose, don haka dole ne a biya kulawa ta musamman. da
4. Kada ka ƙara wasu abubuwa na alkaline zuwa cakuda kafin a yi dumin foda hydroxyethyl cellulose ta cikin ruwa. Haɓaka ƙimar PH bayan dumama zai taimaka narkewa. da
5. Kamar yadda zai yiwu, ƙara maganin fungal da wuri-wuri. da
6. Lokacin amfani da high-viscosity hydroxyethyl cellulose, maida hankali na uwa barasa kamata ba fiye da 2.5-3%, in ba haka ba uwar barasa zai yi wuya a rike. Maganin hydroxyethyl cellulose da aka yi masa magani gabaɗaya baya da sauƙi don samar da dunƙule ko sassa, kuma ba zai haifar da colloid mai siffar zobe ba bayan ƙara ruwa.
Lokacin aikawa: Dec-27-2022