A cikin masana'antar fenti, kwanciyar hankali da rheology na manna launi suna da mahimmanci. Duk da haka, a lokacin ajiya da amfani, manna launi sau da yawa yana da matsaloli irin su thickening da agglomeration, wanda ke rinjayar tasirin ginin da ingancin sutura.Hydroxyethyl cellulose (HEC), a matsayin na kowa ruwa mai narkewa polymer thickener, taka muhimmiyar rawa a fenti formulations. Zai iya inganta ingantaccen kayan aikin rheological na manna launi, hana agglomeration, da inganta kwanciyar hankali na ajiya.
1. Dalilai na thickening da agglomeration na fenti launi manna
A thickening da agglomeration na fenti manna yawanci alaka da wadannan dalilai:
Watsawa mara kyau na launi: Abubuwan da ke cikin launin launi na iya yin yawo kuma su daidaita yayin ajiya, yana haifar da maida hankali na gida da yawa da haɓakawa.
Haɓakar ruwa a cikin tsarin: A lokacin ajiya, zubar da wani ɓangare na ruwa zai haifar da danko na manna launi ya karu, har ma ya haifar da busassun kwayoyin halitta a saman.
Rashin daidaituwa tsakanin additives: Wasu thickeners, dispersants ko wasu additives na iya amsawa da juna, suna shafar kaddarorin rheological na manna launi, wanda ke haifar da haɓakar ɗanko mara kyau ko samuwar flocculent.
Tasirin karfi na karfi: Tsarin motsa jiki na dogon lokaci ko yin famfo na iya haifar da lalata polymer sarkar a cikin tsarin, rage da ruwa mai launi ko agglomerated.
2. Tsarin aikin hydroxyethyl cellulose
Hydroxyethyl cellulose (HEC) ne wanda ba ionic cellulose wanda aka samu tare da mai kyau thickening, rheological daidaita ikon da watsawa kwanciyar hankali. Babban tsarin aikinsa a manna launi mai launi ya haɗa da:
Thickening da rheological daidaitawa: HEC iya hada tare da ruwa kwayoyin ta hanyar hydrogen bonding samar da wani barga hydration Layer, ƙara danko na tsarin, hana pigment barbashi daga agglomerating da daidaitawa, da kuma tabbatar da cewa launi manna kula da kyau fluidity a lokacin tsaye ko gina.
Barga watsawa tsarin: HEC yana da kyau surface aiki, iya gashi pigment barbashi, bunkasa su dispersibility a cikin ruwa lokaci, hana agglomeration tsakanin barbashi, kuma ta haka ne rage flocculation da agglomeration.
Ƙunƙarar ƙaƙƙarfan ruwa: HEC na iya samar da wani nau'i mai kariya, rage jinkirin yawan ruwa, hana launin launi daga kauri saboda asarar ruwa, da kuma tsawaita lokacin ajiya.
Juriya mai ƙarfi: HEC yana ba da fenti mai kyau thixotropy, yana rage danko a ƙarƙashin ƙarfin ƙarfi mai ƙarfi, sauƙaƙe gini, kuma yana iya hanzarta dawo da danko a ƙarƙashin ƙarancin ƙarfi, haɓaka aikin fenti na anti-sagging.
3. Amfanin hydroxyethyl cellulose a cikin launi mai launi
Ƙara hydroxyethyl cellulose zuwa tsarin launi mai launi yana da fa'idodi masu zuwa:
Haɓaka kwanciyar hankali na ma'auni na manna launi: HEC na iya tasiri yadda ya kamata ya hana pigment sedimentation da agglomeration, tabbatar da cewa launi mai launi yana kula da daidaitattun ruwa bayan ajiya na dogon lokaci.
Inganta aikin gine-gine: HEC yana ba da launi mai launi mai kyau na rheological Properties, yana sauƙaƙa don gogewa, mirgina ko fesa yayin ginin, inganta haɓakar ginin fenti.
Haɓaka juriya na ruwa: HEC na iya rage canjin danko da ke haifar da ƙawancen ruwa, don haka launi mai launi zai iya kula da kwanciyar hankali a ƙarƙashin yanayi daban-daban.
Ƙarfi mai ƙarfi: HEC mai kauri ne wanda ba na ionic ba, wanda ke da kyakkyawar dacewa tare da mafi yawan masu rarrabawa, masu yin jika da sauran abubuwan da suka dace, kuma ba zai haifar da rashin kwanciyar hankali a cikin tsarin tsarawa ba.
Kariyar muhalli da aminci: HEC ya samo asali ne daga cellulose na halitta, ya sadu da bukatun kare muhalli, ba ya saki abubuwa masu cutarwa, kuma yana cikin layi tare da yanayin ci gaban kare muhalli da kare muhalli na tushen ruwa.
4. Amfani da shawarwarin hydroxyethyl cellulose
Don mafi kyawun taka rawar HEC, ya kamata a lura da waɗannan abubuwan yayin amfani da shi a cikin dabarar manna launi mai launi:
Madaidaicin iko na adadin ƙari: Adadin HEC yawanci tsakanin 0.2% -1.0%. Ƙayyadaddun adadin amfani yana buƙatar daidaitawa bisa ga bukatun tsarin sutura don kauce wa danko mai yawa kuma ya shafi aikin ginin.
Tsarin rushewa: HEC ya kamata a tarwatsa a narkar da shi a cikin ruwa da farko, sannan a saka shi cikin tsarin manna launi bayan samar da tsari iri ɗaya don tabbatar da cewa yana yin cikakken tasirinsa mai kauri da tarwatsawa.
Yi amfani da wasu additives: Ana iya dacewa da dacewa tare da masu rarrabawa, magunguna, da dai sauransu don inganta yanayin tarwatsawa na pigments da inganta aikin shafi.
Guji tasirin zafin jiki mai girma: Solubility na HEC yana da tasiri sosai da zafin jiki. Ana ba da shawarar narkar da shi a zazzabi mai dacewa (25-50 ℃) don guje wa haɓakawa ko rashin isasshen narkewa.
Hydroxyethyl celluloseyana da mahimmancin ƙimar aikace-aikacen a cikin tsarin manna launi mai launi. Yana iya yadda ya kamata warware matsalolin da launi manna thickening da agglomeration, da kuma inganta ajiya kwanciyar hankali da yi yi. Girmanta, rarrabuwar kwanciyar hankali da juriya ga ƙawancen ruwa sun sa ya zama muhimmin ƙari ga fenti na tushen ruwa. A cikin aikace-aikacen aikace-aikacen, daidaitaccen daidaitaccen sashi na HEC da hanyar ƙari zai iya haɓaka fa'idodinsa da haɓaka ƙimar fenti gaba ɗaya. Tare da haɓaka fenti masu dacewa da muhalli na ruwa, abubuwan da ake buƙata na HEC za su fi girma.
Lokacin aikawa: Afrilu-09-2025