Menene hydroxyethyl cellulose?

Menene hydroxyethyl cellulose?

Hadin Hydroxyethyl cellulose (HEC), fari ko rawaya mai haske, mara wari, mara guba, fibrous ko foda mai ƙarfi, wanda aka shirya ta hanyar etherification na alkaline cellulose da ethylene oxide (ko chlorohydrin), mallakar nau'in cellulose ethers masu narkewa na Nonionic. Saboda HEC yana da kyawawan halaye kamar kauri, dakatarwa, warwatsewa, emulsifying, haɗawa, samar da fim, kare danshi da samar da colloids masu kariya, an yi amfani da shi sosai a binciken mai, shafa, gini, magani da abinci, yadi, yin takarda da polymers. Polymerization da sauran fannoni.

Ana amfani da sinadarin Hydroxyethyl cellulose sosai a masana'antar shafa fenti. Bari mu dubi yadda yake aiki a shafa fenti:

Me ke faruwa idan hydroxyethyl cellulose ya haɗu da rufin da ke kan ruwa?

A matsayin sinadarin surfactant mara ionic, hydroxyethyl cellulose yana da waɗannan halaye ban da kauri, dakatarwa, ɗaurewa, flotation, samar da fim, warwatsewa, riƙe ruwa da kuma samar da colloids masu kariya:

HEC yana narkewa a cikin ruwan zafi ko sanyi, kuma baya zubewa a yanayin zafi mai yawa ko tafasa, wanda hakan ke sa shi yana da halaye iri-iri na narkewa da ɗanko, da kuma gelling mara zafi;

Ƙarfin riƙe ruwa ya ninka na methyl cellulose sau biyu, kuma yana da ingantaccen tsarin kwarara;

Non-ionic kanta na iya rayuwa tare da nau'ikan polymers masu narkewa cikin ruwa, surfactants, da gishiri, kuma kyakkyawan mai kauri ne na colloidal wanda ke ɗauke da mafita mai yawan sinadarin electrolyte;

Idan aka kwatanta da methyl cellulose da aka sani da hydroxypropyl methyl cellulose, ikon warwatsewa naHECshine mafi muni, amma ikon kariya daga colloid shine mafi ƙarfi.

Tunda sinadarin hydroxyethyl cellulose da aka yi wa magani a saman jiki abu ne mai kauri ko kuma mai kama da fiber, Shandong Heda tana tunatar da ku da ku kula da waɗannan abubuwa yayin shirya giyar hydroxyethyl cellulose uwa:

(1) Kafin da kuma bayan ƙara hydroxyethyl cellulose, dole ne a ci gaba da juyawa har sai ruwan ya bayyana kuma ya bayyana.

(2) Dole ne a tace a hankali a cikin ganga mai haɗawa, kuma kada a haɗa hydroxyethyl cellulose da hydroxyethyl cellulose kai tsaye cikin ganga mai haɗawa da yawa ko kuma a cikin nau'in dunƙule da ƙwallo.

(3) Zafin ruwa da darajar pH na ruwan suna da alaƙa a bayyane da narkar da hydroxyethyl cellulose, don haka ya kamata a ba shi kulawa ta musamman.

(4) Kada a taɓa ƙara wasu sinadarai na alkaline a cikin cakuda kafin a jiƙa foda hydroxyethyl cellulose da ruwa. Ƙara pH ɗin sai bayan jika zai taimaka wajen narkewa.

(5) Duk gwargwadon iyawa, a ƙara maganin kashe ƙwayoyin cuta a gaba.

(6) Lokacin amfani da sinadarin hydroxyethyl cellulose mai yawan ɗanko, yawan ruwan da ke cikin uwar giya bai kamata ya wuce kashi 2.5-3% ba (ta nauyi), in ba haka ba ruwan da ke cikin uwar giya yana da wahalar sarrafawa.