Joang ho kenyelletsa Hydroxyethyl Cellulose ho Coatings?

Hydroxyethyl cellulose (HEC) ke "thickener" e tloaelehileng le rheology modifier e sebelisoang mefuteng e mengata ea lipente, ho kenyelletsa le lipente, likhomaretsi le li-sealants.Ha u eketsa HEC ho liaparo, ke habohlokoa ho latela mehato e seng mekae ea bohlokoa ho netefatsa hore e qhalakanngoa le ho nosetsoa hantle.Mehato e akaretsang ea ho kenyelletsa HEC ho likoahelo ke tsena:

1. Lokisetsa HEC ea ho qhalakanngoa HEC e atisa ho fanoa e le phofo e omeletseng e lokelang ho qhalakanngoa ka metsing pele e ka kenyelletsoa ho roala.Ho lokisa phepelo ea HEC, eketsa palo e lakatsehang ea phofo ea HEC ho metsi ha u ntse u hlohlelletsa u sa khaotse.Khokahano e khothaletsoang ea HEC ho phatlallang e ipapisitse le ts'ebeliso e ikhethileng le viscosity e lakatsehang ea ho roala.
2. Kopanya ho qhalana ha HEC le ho roala Hang ha HEC e qhalakantsoeng e na le metsi ka ho feletseng 'me likaroloana tsa HEC li qhalakanngoa ka ho feletseng, butle-butle li e kenye ka ho roala ha li ntse li kopanya ka ho tsoelang pele.Ho bohlokoa ho eketsa phepelo ea HEC butle-butle ho thibela ho putlama le ho etsa bonnete ba hore e ajoa ka ho lekana ho pholletsa le seaparo.Lebelo la ho kopanya le lokela ho bolokoa boemong bo itekanetseng ho thibela ho kenngoa ha moea ho feteletseng.
3. Fetola pH ea ho roala HEC e na le kutloelo-bohloko ho pH 'me e sebetsa hantle ka ho fetisisa boemong ba pH ba 6-8.Ka hona, ke habohlokoa ho fetola pH ea ho roala sebakeng sena pele o eketsa ho hasana ha HEC.Sena se ka etsoa ka ho kenyelletsa lintho tse nyane tsa pH e fetolang, joalo ka ammonia kapa sodium hydroxide, ho roala ha u ntse u shebile pH.
4. Lumella seaparo hore se phomole 'me se hōle Ka mor'a ho eketsa ho qhalakanngoa ha HEC ho seaparo, ho kgothaletswa ho lumella motsoako hore o phomole bonyane metsotso ea 30 ho lumella HEC ho nosetsa ka ho feletseng le ho tiisa ho roala.Ho bohlokoa ho hlohlelletsa motsoako nako le nako nakong ena ho thibela ho tsitsa le ho netefatsa hore HEC e ajoa ka ho lekana.Ho roala ho boetse ho lokela ho lumelloa ho hōla bonyane lihora tse 24 pele ho sebelisoa ho netefatsa hore HEC e tiisitse ka ho feletseng seaparo.

Ka kakaretso, ho eketsa HEC ho liphahlo ho akarelletsa ho lokisetsa ho qhalana ha HEC, butle-butle ho e eketsa ho roala ha u ntse u kopanya ka ho tsoelang pele, ho lokisa pH ea ho roala, le ho lumella motsoako hore o phomole le ho hōla pele o sebelisoa.Ho latela mehato ena ho ka thusa ho etsa bonnete ba hore HEC e qhalakantsoe ka ho feletseng 'me e na le metsi a mangata, e leng se etsang hore ho be le seaparo se lekaneng se nang le thepa e lakatsehang ea rheological.