Haɗin hydroxyethyl cellulose (HEC) aiki ne da ke buƙatar ingantaccen sarrafawa da ƙwarewar fasaha. HEC wani abu ne na polymer mai narkewa da ruwa wanda aka yi amfani da shi sosai a cikin ginin, sutura, magunguna, sinadarai na yau da kullum da sauran masana'antu, tare da thickening, dakatarwa, bonding, emulsification, film-forming, colloid m da sauran ayyuka.
1. Zabi matsakaicin narkewa mai dacewa
Yawanci ana narkar da HEC a cikin ruwan sanyi, amma kuma ana iya narkar da shi a cikin abubuwan da ke da ƙarfi kamar su ethanol da cakuda ruwa, ethylene glycol, da sauransu. ana amfani da su a aikace-aikacen da ake buƙata. Ya kamata ingancin ruwan ya zama mara ƙazanta, kuma a guji ruwa mai ƙarfi don guje wa tasirin solubility da ingancin maganin.
2. Sarrafa ruwan zafi
Ruwan zafin jiki yana da babban tasiri akan rushewar HEC. Yawanci, yawan zafin jiki na ruwa ya kamata ya kasance tsakanin 20 ° C da 25 ° C. Idan yawan zafin jiki na ruwa ya yi yawa, HEC yana da sauƙi don haɓakawa da kuma samar da gel taro wanda ke da wuya a narke; idan yawan zafin jiki na ruwa ya yi ƙasa da ƙasa, adadin narkar da zai ragu, yana shafar ingancin hadawa. Sabili da haka, tabbatar da cewa zafin ruwa yana cikin kewayon da ya dace kafin haɗuwa.
3. Zaɓin kayan haɗawa
Zaɓin kayan aikin haɗawa ya dogara da takamaiman buƙatun aikace-aikacen da sikelin samarwa. Don ƙananan ayyuka ko ayyukan dakin gwaje-gwaje, ana iya amfani da na'ura mai haɗaɗɗiya ko blender ta hannu. Don samar da babban sikelin, ana buƙatar babban mahaɗar shear ko mai watsawa don tabbatar da haɗaɗɗun iri ɗaya da guje wa ƙirƙirar tubalan gel. Gudun motsawa na kayan aiki ya kamata ya zama matsakaici. Da sauri zai haifar da iska ta shiga cikin bayani kuma ya haifar da kumfa; kuma jinkirin bazai iya tarwatsa HEC yadda ya kamata ba.
4. Hanyar ƙari HEC
Domin kauce wa samuwar gel gungu a lokacin rushewar HEC, HEC ya kamata a yawanci ƙara a hankali a karkashin motsawa. Takamaiman matakan sune kamar haka:
Tunawa ta farko: A cikin matsakaicin narkar da aka shirya, fara mai tayar da hankali kuma a motsa a matsakaicin gudun don samar da tsayayyiyar vortex a cikin ruwa.
Ƙarin hankali: Sannu a hankali da kuma yayyafa HEC foda a cikin vortex, kauce wa ƙara da yawa a lokaci guda don hana haɓakawa. Idan zai yiwu, yi amfani da sieve ko mazurari don sarrafa saurin kari.
Ci gaba da motsawa: Bayan an ƙara HEC cikakke, ci gaba da motsawa na wani lokaci, yawanci minti 30 zuwa 1 hour, har sai bayani ya kasance cikakke kuma babu wasu ƙwayoyin da ba a warware ba.
5. Sarrafa lokacin rushewa
Lokacin rushewa ya dogara da ƙimar danko na HEC, zazzabi na matsakaici na narkewa da yanayin motsawa. HEC tare da babban darajar danko yana buƙatar tsawon lokacin rushewa. Gabaɗaya, yana ɗaukar awanni 1 zuwa 2 don narkar da HEC gaba ɗaya. Idan an yi amfani da kayan aiki mai girma, za a iya rage lokacin rushewa, amma ya kamata a kauce wa motsa jiki mai yawa don hana lalacewa ga tsarin kwayoyin HEC.
6. Ƙara sauran sinadaran
A lokacin rushewar HEC, ana iya buƙatar wasu abubuwan sinadirai, kamar su masu kiyayewa, pH masu daidaitawa ko wasu abubuwan ƙari na aiki. Ya kamata a ƙara waɗannan abubuwan a hankali bayan HEC ta narke gaba ɗaya, kuma a ci gaba da motsawa don tabbatar da rarraba iri ɗaya.
7. Adana bayani
Bayan haɗawa, maganin HEC ya kamata a adana shi a cikin rufaffiyar akwati don hana ƙawancen ruwa da gurɓataccen ƙwayar cuta. Ya kamata a kiyaye muhallin wurin ajiya mai tsabta, bushe da nesa da hasken rana kai tsaye. Ya kamata a daidaita ƙimar pH na maganin zuwa kewayon da ya dace (yawanci 6-8) don tsawaita lokacin ajiya.
8. Ingancin inganci
Bayan haɗuwa, ana bada shawara don gudanar da bincike mai inganci akan mafita, galibi gwajin sigogi irin su danko, nuna gaskiya da ƙimar pH na maganin don tabbatar da cewa ya dace da buƙatun da ake tsammani. Idan ya cancanta, ana kuma iya yin gwajin ƙwayoyin cuta don tabbatar da tsaftar maganin.
Hydroxyethyl cellulose za a iya yadda ya kamata gauraye don samun high quality-HEC mafita don saduwa da bukatun daban-daban aikace-aikace yankunan. A yayin aikin, kowane hanyar haɗin yanar gizon tana da iko sosai don guje wa ɓarna da tabbatar da haɗaɗɗiyar santsi da ingancin samfurin ƙarshe.
Lokacin aikawa: Agusta-21-2024