A yau, za mu yi magana da ku game da yadda ake amfani da hydroxyethyl cellulose na yau da kullum a cikin fenti da sutura.Paint, wanda aka saba kiransa sutura a kasar Sin.An rufe abin da ake kira murfin a saman abin da za a kare shi ko a yi ado, kuma zai iya samar da fim mai ci gaba wanda aka haɗa da abin da za a rufe.
Menene hydroxyethyl cellulose?
Hydroxyethyl cellulose (HEC), fari ko haske rawaya, wari, mara guba fibrous ko powdery m, wanda aka shirya ta etherification na alkaline cellulose da ethylene oxide (ko chlorohydrin), na cikin halittar Nonionic soluble cellulose ethers.Saboda HEC yana da kyawawan kaddarorin thickening, dakatarwa, tarwatsawa, emulsifying, haɗin gwiwa, ƙirƙirar fim, kare danshi da samar da colloid masu kariya, an yi amfani dashi sosai a cikin binciken mai, sutura, gini, magani da abinci, yadi, yin takarda da polymers.Polymerization da sauran filayen.
Abin da ke faruwa lokacin da hydroxyethyl cellulose ya hadu da tushen ruwafenti?
A matsayin surfactant ba ionic, hydroxyethyl cellulose yana da wadannan kaddarorin ban da thickening, suspending, dauri, flotation, film-forming, dispersing, ruwa rike da kuma samar da m colloid:
HEC yana narkewa a cikin ruwan zafi ko ruwan sanyi, kuma baya haɓaka a babban zafin jiki ko tafasa, yana sa shi yana da nau'i mai yawa na solubility da danko, da kuma gelling maras zafi;
Ƙarfin riƙewar ruwa shine sau biyu na methyl cellulose, kuma yana da mafi kyawun tsari na kwarara;
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;
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-natsuwa electrolyte mafita.
Yadda ake amfani da hydroxyethyl cellulose?Yadda za a ƙara shi?
Ƙara kai tsaye a lokacin samarwa - wannan hanya ita ce mafi sauƙi kuma tana ɗaukar lokaci kaɗan.
Ƙara ruwa mai tsabta a cikin tawul ɗin da aka sanye da babban abin haɗakarwa.Fara motsawa akai-akai da ƙananan gudu kuma a hankali a tsoma hydroxyethyl cellulose a ko'ina cikin maganin.Ci gaba da motsawa har sai dukkanin kwayoyin halitta sun jike.Sa'an nan kuma ƙara abubuwan kiyayewa da ƙari daban-daban.Irin su pigments, dispersing aids, ammonia water, da dai sauransu. Dama har sai duk hydroxyethyl cellulose ya narke gaba daya (dankowar maganin yana ƙaruwa sosai) kafin ƙara wasu abubuwan da aka gyara a cikin dabara don aiwatar da amsa.
Sanye take da uwa barasa.
Shi ne don shirya giya mai uwa tare da maida hankali mafi girma da farko, sannan ƙara shi zuwa samfurin.Amfanin wannan hanyar shine yana da mafi girman sassauci kuma ana iya ƙara shi kai tsaye zuwa samfurin da aka gama, amma dole ne a adana shi da kyau.Matakan wannan hanyar sun yi kama da yawancin matakan da ke cikin Hanyar 1;Bambance-bambancen shine cewa babu buƙatar mai tayar da hankali mai ƙarfi, kuma kawai wasu masu tayar da hankali waɗanda ke da isasshen iko don kiyaye hydroxyethyl cellulose daidai tarwatsawa a cikin bayani za a iya amfani da su, kuma a ci gaba da motsawa har sai an narkar da gaba daya a cikin wani bayani mai danko.Duk da haka, dole ne a lura cewa dole ne a ƙara wakili na antifungal zuwa uwar barasa da wuri-wuri.
Tun da surface-mayya hydroxyethyl cellulose ne foda ko fibrous m, Shandong Heda tunatar da ku kula da wadannan maki lokacin shirya hydroxyethyl cellulose uwa barasa:
(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 ganga mai gauraya, kuma kar a haɗa hydroxyethyl cellulose da hydroxyethyl cellulose kai tsaye a cikin ganga mai yawa ko a cikin nau'i na dunƙule da ƙwallo.
(3) Yanayin zafin ruwa da ƙimar pH na ruwa suna da alaƙa a bayyane ga rushewar hydroxyethyl cellulose, don haka ya kamata a ba da kulawa ta musamman.
(4) Kada a taɓa ƙara wasu abubuwan alkaline a cikin cakuda kafin a jika foda hydroxyethyl cellulose da ruwa.Kiwon pH kawai bayan jika zai taimaka a rushe.
(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 yana da wuya a rike.
Lokacin aikawa: Nov-03-2022