Hydroxyethyl Cellulose (HEC) wani muhimmin ruwa ne mai narkewa nonionic cellulose ether, wanda aka yi amfani da shi sosai a cikin kayan gine-gine, musamman fenti na latex. A matsayin ingantaccen thickener, colloid mai kariya, wakili mai dakatarwa da taimakon fim, yana haɓaka aikin fenti na latex sosai, yana haɓaka kaddarorin ginin fenti da tasirin gani na ƙãre samfurin.
1. Tsarin sinadaran da kaddarorin hydroxyethyl cellulose
Hydroxyethyl cellulose wani nau'in cellulose ne wanda aka samar ta hanyar gabatar da ƙungiyar hydroxyethyl a cikin kwayoyin cellulose. Yana da wani abu mai narkewa polymer fili. Tsarin sinadarai yana ƙayyade kyakkyawan narkewar ruwa da kaddarorin kauri. Lokacin da narkar da cikin ruwa, zai iya samar da wani sosai danko bayani tare da kyau mannewa, film-forming da thickening effects. Waɗannan kaddarorin suna taka muhimmiyar rawa a cikin fenti na latex.
Hydroxyethyl cellulose yawanci fari ko haske rawaya foda ko granules, wanda aka sauƙi narkar da a cikin sanyi ko ruwan zafi samar da wani barga colloidal bayani. Maganin sa yana da babban kwanciyar hankali kuma yana iya tsayayya da acid, alkali, redox da lalata ƙwayoyin cuta. Bugu da ƙari, saboda yanayin rashin ionic na hydroxyethyl cellulose, ba ya amsawa ta hanyar sinadarai tare da sauran sinadaran da ke cikin fenti na latex kamar su pigments, fillers ko additives, don haka yana da jituwa mai yawa a cikin kayan fenti na latex.
2. Tsarin aikin hydroxyethyl cellulose a cikin launi na latex
A cikin fenti na latex, aikin hydroxyethyl cellulose yana nunawa a cikin kauri, riƙe ruwa, ingantaccen kwanciyar hankali da ingantaccen aiki:
Tasiri mai kauri: Hydroxyethyl cellulose, a matsayin ingantaccen thickener, na iya ƙara danko na fenti na latex kuma yana ƙara thixotropy. Wannan ba wai kawai yana hana fenti daga raguwa a lokacin ajiya da aikace-aikacen ba, amma har ma yana sa fenti ya fi girma ko da lokacin birgima ko gogewa. Daidaitaccen tasiri mai mahimmanci yana taimakawa wajen sarrafa rheology na fenti na latex, yana tabbatar da jin dadi lokacin da ake amfani da shi, kuma yana inganta ɗaukar hoto.
Riƙewar ruwa: Hydroxyethyl cellulose yana da kyakkyawar riƙewar ruwa. A lokacin aikin bushewa na fenti na latex, yana iya hana ruwa daga ƙafewa da sauri, ta yadda za a tsawaita lokacin buɗe bakin rigar da kuma tabbatar da yin gini mai santsi. Bugu da ƙari, riƙewar ruwa mai kyau kuma zai iya rage fashewar fim ɗin shafa bayan bushewa, don haka inganta ingancin fim ɗin gabaɗaya.
Kwanciyar hankali: Hydroxyethyl cellulose, a matsayin colloid mai karewa, zai iya hana pigments da filler yadda ya kamata daga zama a cikin fenti na latex. Zai iya samar da tsayayyen tsarin colloidal ta hanyar maganin danko don rarraba kowane bangare daidai da tabbatar da kwanciyar hankali na fenti. A lokaci guda, hydroxyethyl cellulose kuma iya inganta kwanciyar hankali na emulsion barbashi da kuma kauce wa delamination da agglomeration na latex tsarin a lokacin ajiya.
Constructionability: A lokacin aiwatar da aikin, da thickening da lubricating effects na hydroxyethyl cellulose sa latex Paint da kyau shafi da matakin Properties, wanda zai iya yadda ya kamata rage goga alamomi da kuma inganta smoothness na shafi fim. Bugu da ƙari, saboda hydroxyethyl cellulose na iya inganta thixotropy na fenti, fenti na latex yana da sauƙi don aiki yayin aikin zanen, yana da ruwa mai kyau ba tare da digo ba, kuma ya dace da hanyoyi daban-daban na gine-gine, irin su brushing, abin nadi da spraying. .
3. Musamman aikace-aikace sakamakon hydroxyethyl cellulose a cikin latex fenti
Inganta kwanciyar hankali na fenti: Ƙara adadin da ya dace na hydroxyethyl cellulose zuwa dabarar fenti na latex na iya haɓaka haɓakar abubuwan daidaitawa na fenti da kuma guje wa shigar da pigments da filler. Watsawa na hydroxyethyl cellulose a cikin sutura zai iya kula da daidaitattun tsarin sutura kuma ya tsawaita lokacin ajiyar samfurin.
Haɓaka kaddarorin rheological na sutura: Abubuwan rheological na fenti na latex suna da mahimmanci ga ingancin gini. Hydroxyethyl cellulose na iya amfani da thixotropy na musamman don sa fenti ya gudana cikin sauƙi a ƙarƙashin ƙarfin ƙarfi mai ƙarfi (kamar lokacin zanen), da kuma kula da babban danko a ƙarƙashin ƙananan ƙarfi (kamar lokacin da yake tsaye), yana hana Sag. Wannan halayyar ta sa fenti na latex ya sami mafi kyawun gini da tasirin shafi, yana rage sagging da alamun birgima.
Inganta tasirin gani da kaddarorin jiki na fim ɗin shafa: Hydroxyethyl cellulose yana taka muhimmiyar rawa a cikin tsarin samar da fim. Ba wai kawai inganta sassaucin fim ɗin fenti ba, amma kuma yana haɓaka juriya na lalacewa da juriya na ruwa na fim ɗin fenti, haɓaka rayuwar sabis na fim ɗin fenti. Bugu da ƙari, saboda kyakkyawar riƙewar ruwa, rufin yana bushewa daidai, yana taimakawa wajen guje wa matsaloli irin su wrinkles, pinholes da fashe, yana sa saman rufin ya zama mai laushi.
Ingantacciyar aikin muhalli: Hydroxyethyl cellulose wani abu ne na cellulose na halitta, yana da kyakkyawan yanayin halitta, kuma ba zai gurɓata muhalli ba. Idan aka kwatanta da kauri na roba na gargajiya, ya fi dacewa da muhalli kuma ya cika buƙatun kayan gini na zamani kore. Bugu da kari, ba ya ƙunshe da mahadi masu canzawa (VOC), don haka amfani da hydroxyethyl cellulose a cikin fenti na latex yana taimakawa rage fitar da VOC da haɓaka ingancin iska na yanayin gini.
A matsayin wani abu mai mahimmanci a cikin fenti na latex, hydroxyethyl cellulose na iya inganta aikin gine-gine da sakamako na ƙarshe na fenti na latex ta hanyar daɗaɗɗa mai kyau, riƙewar ruwa, kwanciyar hankali da abubuwan samar da fim. A lokaci guda, saboda kariyar muhalli da ƙananan halayen VOC, hydroxyethyl cellulose ya sadu da bukatun kore da muhalli na masana'antar suturar zamani. Tare da ci gaba da ci gaba da fasaha, aikace-aikacen da ake bukata na hydroxyethyl cellulose a cikin fenti na latex zai zama mafi girma, yana samar da mafita mafi kyau don ci gaba da ci gaban masana'antar gine-ginen gine-gine.
Lokacin aikawa: Satumba-20-2024