Uyongeza njani iSelulosi yeHydroxyethyl kwiingubo?

I-Hydroxyethyl cellulose (HEC) yinto eqhelekileyo ye-thickener kunye ne-rheology modifier esetyenziswa kuluhlu olubanzi lwee-coating formulations, kubandakanywa iipeyinti, i-adhesives, kunye ne-sealants.Xa ufaka i-HEC kwiingubo, kubalulekile ukulandela amanyathelo ambalwa abalulekileyo ukuqinisekisa ukuba ihlakazekile kwaye ihlanjululwe ngokufanelekileyo.Nanga amanyathelo abanzi okongeza i-HEC kwiingubo:

1. Lungiselela i-HEC yokusasazwa kwe-HEC ngokuqhelekileyo inikezelwa njengomgubo owomileyo omele uhlakazwe emanzini ngaphambi kokuba wongezwe kwi-coating.Ukulungiselela ukusasazwa kwe-HEC, yongeza inani elifunekayo le-HEC powder emanzini ngelixa uvuselela ngokuqhubekayo.Ukugxininiswa okucetyiswayo kwe-HEC kwi-dispersion kuxhomekeke kwisicelo esithile kunye ne-viscosity efunwayo yokugqoka.
2. Xuba ukusasazwa kwe-HEC kunye neengubo Emva kokuba i-HEC i-dispersion igcwele i-hydrated ngokupheleleyo kwaye iinqununu ze-HEC zihlakazwe ngokupheleleyo, zongeza ngokukhawuleza kwi-coating ngelixa udibanisa ngokuqhubekayo.Kubalulekile ukongeza ukusasazwa kwe-HEC kancinci ukuthintela ukuhlangana kunye nokuqinisekisa ukuba isasazwa ngokulinganayo kuyo yonke into yokugquma.Isantya sokuxuba kufuneka sigcinwe kwinqanaba eliphakathi ukukhusela ukunyanzeliswa komoya.
3. Lungisa i-pH yokwambathisa iHEC inovakalelo kwi-pH kwaye isebenza ngcono kuluhlu lwe-pH lwe-6-8.Ngoko ke, kubalulekile ukulungisa i-pH yengubo kolu luhlu ngaphambi kokuba ungeze ukusabalalisa kwe-HEC.Oku kunokwenziwa ngokudibanisa amanani amancinci e-agent yokulungisa i-pH, njenge-ammonia okanye i-sodium hydroxide, kwi-coating ngelixa ubeka iliso kwi-pH.
4. Vumela i-coating iphumle kwaye ikhule Emva kokufaka ukusabalalisa kwe-HEC kwi-coating, kucetyiswa ukuba uvumele umxube ukuba uphumle ubuncinane imizuzu engama-30 ukuvumela i-HEC ukuba ikhuphe ngokupheleleyo kwaye ikhulise isambatho.Kubalulekile ukuvuselela umxube ngamaxesha ngeli xesha ukukhusela ukulungiswa kunye nokuqinisekisa ukuba i-HEC isasazwa ngokulinganayo.Ukugquma kufuneka kuvunyelwe ukuba kukhule ubuncinane kwiiyure ezingama-24 ngaphambi kokusetyenziswa ukuze kuqinisekiswe ukuba i-HEC igxininise ngokupheleleyo.

Ngokubanzi, ukongeza i-HEC kwiingubo kubandakanya ukulungiselela ukusabalalisa kwe-HEC, ukuyongeza ngokukhawuleza kwi-coating ngelixa udibanisa ngokuqhubekayo, ukulungelelanisa i-pH yokugqoka, kunye nokuvumela umxube ukuba uphumle kwaye uvuthwe ngaphambi kokusetyenziswa.Ukulandela la manyathelo kunokunceda ekuqinisekiseni ukuba i-HEC ihlakazekile ngokupheleleyo kwaye ifakwe emanzini, okubangela ukugquma kakuhle kunye neempawu ezifunwayo ze-rheological.