Fenti, wanda aka fi sani da fenti a kasar Sin. Ana shafa fenti a saman abin da za a kare ko a yi wa ado, kuma yana iya samar da fim mai ci gaba da hadewa da abin da za a shafa.
Menene Hydroxyethyl Cellulose?
Hydroxyethyl cellulose (HEC), fari ko rawaya mai haske, mara wari, mara guba, mai ƙarfi ko foda, wanda aka shirya ta hanyar etherification reaction na alkaline cellulose da ethylene oxide (ko chlorohydrin), yana cikin ƙwayoyin cellulose masu narkewa marasa ionic. Tunda HEC yana da kyawawan halaye na kauri, dakatarwa, wargajewa, emulsifying, haɗawa, samar da fim, kare danshi da kuma samar da colloid mai kariya, an yi amfani da shi sosai a binciken mai, shafi, gini, magani, abinci, yadi, yin takarda da polymer Polymerization da sauran fannoni.
Me ke faruwa idan hydroxyethyl cellulose ya haɗu da fenti mai tushen ruwa?
A matsayin sinadarin surfactant mara ionic, hydroxyethyl cellulose yana da waɗannan halaye ban da kauri, dakatarwa, ɗaurewa, iyo, samar da fim, warwatsewa, riƙe ruwa da kuma samar da colloid mai kariya:
HEC yana narkewa a cikin ruwan zafi ko ruwan sanyi, zafin jiki mai yawa ko tafasa ba tare da hazo ba, don haka yana da nau'ikan halaye masu yawa na narkewa da ɗanko, da kuma gelation mara zafi;
Ƙarfin riƙe ruwa ya ninka na methyl cellulose sau biyu, kuma yana da ingantaccen tsarin kwarara;
Idan aka kwatanta da methyl cellulose da aka sani da hydroxypropyl methyl cellulose, ikon watsawa na HEC shine mafi muni, amma ikon kariya na colloid shine mafi ƙarfi.
Ba shi da ionic kuma yana iya rayuwa tare da nau'ikan polymers masu narkewa cikin ruwa, surfactants, da gishiri. Yana da kyakkyawan kauri na colloidal don maganin electrolyte mai yawan taro;
Yadda ake amfani da hydroxyethyl cellulose? Yadda ake ƙara shi?
Ƙara kai tsaye yayin samarwa - wannan hanyar ita ce mafi sauƙi kuma tana ɗaukar lokaci mafi guntu.
Sai a zuba ruwa mai tsafta a cikin babban bokiti da aka sanya masa injin haɗa kayan haɗin. A fara juyawa akai-akai a ƙaramin gudu sannan a tace sinadarin hydroxyethyl cellulose a hankali a cikin ruwan daidai gwargwado. A ci gaba da juyawa har sai dukkan ƙwayoyin sun jike. Sannan a ƙara abubuwan kiyayewa da ƙarin abubuwa daban-daban. Kamar su fenti, abubuwan da ke warwatsewa, ruwan ammonia, da sauransu. A juya har sai dukkan hydroxyethyl cellulose ya narke gaba ɗaya (danko na maganin yana ƙaruwa sosai) kafin a ƙara wasu abubuwan a cikin dabarar don amsawa.
An haɗa shi da ruwan inabi na uwa
Yana da kyau a fara shirya ruwan inabi mai yawan amfani da shi, sannan a ƙara shi a cikin samfurin. Amfanin wannan hanyar shine yana da sassauci sosai kuma ana iya ƙara shi kai tsaye zuwa ga samfurin da aka gama, amma dole ne a adana shi yadda ya kamata. Matakan wannan hanyar sun yi kama da yawancin matakai a hanya ta 1; bambancin shine babu buƙatar mai tayar da hankali mai ƙarfi, kuma wasu masu tayar da hankali ne kawai waɗanda ke da isasshen ƙarfi don kiyaye hydroxyethyl cellulose a warwatse a cikin maganin za a iya ci gaba da juyawa ba tare da tsayawa ba har sai ya narke gaba ɗaya ya zama ruwan da ba shi da kyau. Duk da haka, dole ne a lura cewa dole ne a ƙara maganin kashe ƙwayoyin cuta a cikin ruwan inabin da wuri-wuri.
Tunda sinadarin hydroxyethyl cellulose da aka yi wa magani a samansa yana da ƙarfi ko kuma yana da ƙarfi sosai, Lihongde yana tunatar da ku da ku kula da waɗannan abubuwan 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 tankin hadawa, kuma kada a saka adadi mai yawa ko a saka hydroxyethyl cellulose kai tsaye a cikin tankin hadawa.
(3) Zafin ruwa da ƙimar PH a cikin ruwa suna da alaƙa mai mahimmanci da narkar da hydroxyethyl cellulose, don haka dole ne a ba da kulawa ta musamman.
(4) Kada a ƙara wasu sinadarai na alkaline a cikin cakuda kafin a jiƙa foda hydroxyethyl cellulose da ruwa. Ƙara pH bayan jika yana taimakawa wajen narkewa.
(5) Gwada gwargwadon iko, 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 zai yi wahalar sarrafawa.
Lokacin Saƙo: Maris-02-2023