I-Hydroxyethyl Cellulose (HEC)iyi-polymer engeyona i-ionic emanzini encibilika kakhulu esetshenziswa kakhulu embotsheni, izinto zokwakha, amakhemikhali ansuku zonke, imithi, ukumba uwoyela nezinye izimboni. Emkhakheni wezingubo zokumboza, i-HEC inenani elibalulekile lesicelo njenge-thickener, stabilizer kanye nosizo lokwakha ifilimu olusebenza kahle kakhulu.
1. Indima eyinhloko ye-HEC ekugqokeni izingubo
1.1.Ukuqina komphumela
Omunye wemisebenzi eyinhloko ye-HEC ukuhlinzeka ngomphumela omuhle wokujiya wezingubo. Ngokulungisa inani kanye nemodeli ye-viscosity ye-HEC, ukugqoka kungaba nezakhiwo ezifanele ze-rheological ngesikhathi sokugcina, ukwakhiwa kanye nokwakhiwa kwefilimu. Ukuqina akuthuthukisi nje kuphela ukumiswa kanye nezakhiwo zokulwa nokuhlalisa okokunamathela, kodwa futhi kuthuthukisa umuzwa wokuxubha nokusebenza kokulenga ngesikhathi sokumboza, kunciphisa ukuchafaza nokulenga.
1.2.Thuthukisa ukusebenza kokwakha
I-HEC inezinto ezinhle kakhulu zokuthambisa kanye nokubeka izinga. Ngesikhathi sokugoqa, ukuxubha noma ukufafaza, kungathuthukisa ukusabalala kanye nokuzwakala kokwakhiwa kokugqoka, okwenza ukugqoka kube lula ukusebenzisa ngokulinganayo nokuthuthukisa ikhwalithi yonke yokugqoka. I-HEC inekhono eliqinile lokugcina amanzi, okungabambezela ngokuphumelelayo ukuguquguquka kwamanzi futhi kusize ukuthuthukisa isikhathi esivulekile kanye nokuguquguquka kokwakhiwa kopende.
1..3.Zinzisa uhlelo lwe-emulsion
Kumapende asekelwe emanzini afana nopende we-latex, i-HEC, njenge-polymer engeyona i-ionic, ingakwazi ukuzinzisa isimo sokuhlakazeka kwezinhlayiya ze-emulsion nama-pigment nama-fillers, ivimbele ukuhlukaniswa nokuhlanganiswa okubangelwa ukugeleza kwezinhlayiyana noma ukuchithwa kwe-sedimentation, futhi ithuthukise ukuzinza kokugcinwa kopende.
1.4.Siza ekusebenzeni kokwenza amafilimu
Nakuba i-HEC ngokwayo ingeyona into eyenza ifilimu, isakazwa ngokulinganayo kufilimu yokumboza futhi ingasiza ekwenzeni uqweqwe oluminyene futhi olubushelelezi, luthuthukise ubuqotho kanye nekhwalithi yokubukeka kwefilimu, futhi ifaneleka ngokukhethekile izinhlelo zangaphakathi zopende odongeni.
2. Izinzuzo zokusebenza ze-HEC
I-solubility enhle yamanzi: I-HEC ingancibilika kahle emanzini abandayo nashisayo, futhi kulula ukungeza ohlelweni lokubunjwa ukuze kwakhe isixazululo esisobala noma esiguquguqukayo.
I-Non-ionicity: Inokuhambisana okuhle nezingxenye ezihlukahlukene ze-ionic kanye nohlu olubanzi lwezinhlobo zama-emulsion, futhi ifaneleka ezinhlelweni zokumboza ezinamavelu e-pH ahlukene.
Ukuzinza okuphezulu: Ingahlala izinzile ebangeni le-pH elibanzi (ngokuvamile i-3~11) futhi ayijwayele ukulahlekelwa ukusebenza ngenxa yezinguquko ze-asidi ne-alkalinity.
Iphephile futhi inobungani nemvelo: I-HEC isuselwa ku-cellulose yemvelo, iyabola, ihlangabezana nemithetho yemvelo, ayiqukethe i-VOC, futhi ayikhiphi amagesi ayingozi.
3. Isetshenziswa kanjani i-HEC
Uma usebenzisa i-HEC, udinga ukunaka inqubo yayo yokuhlakazwa nokuqedwa. Izinyathelo ezilandelayo zivame ukutuswa:
Ukuhlakazwa kwempushana eyomile: Fafaza kancane kancane i-HEC impushana eyomile emanzini abandayo anyakaziswayo ukuze ugweme ukuhlangana. Imishini yokushefa ephezulu ingasetshenziswa ukuthuthukisa ukusebenza kahle kokuhlakazeka;
Ukumanzisa nokuvuvukala: Izinhlayiya ze-HEC ezihlakazekile zidinga ukumunca ngokuphelele amanzi futhi zivuvuke, ngokuvamile okuthatha imizuzu eyi-10~30, kuye ngemodeli ye-HEC nezinga lokushisa lamanzi;
Incibilikile futhi isobala: Ngemva kokumanzisa, qhubeka ugudluza noma ukhuphule izinga lokushisa ngendlela efanele ukuze ulincibilikise libe uketshezi lwe-viscous olusobala;
Engeza kufomula: Isixazululo se-HEC singengezwa ezigabeni zokuqala noma zamuva zezithako ukulungisa i-viscosity kanye nezakhiwo ze-rheological zesistimu njengoba kudingeka.
Abanye abakhiqizi bahlinzeka ngezixazululo zangaphambili noma i-HEC elungele ukusetshenziswa, enganezelwa ngokuqondile ukuze kube lula inqubo yokusebenza.
4. Izibonelo zezinhlelo zokusebenza ze-HEC ezinhlotsheni ezahlukene zokumboza
4.1.Upende we-latex wangaphakathi
Njenge-thickener eyinhloko, i-HEC ithuthukisa i-thixotropy nomuzwa wokwakha we-coating, ithuthukisa ukusebenza kwe-anti-sagging, futhi ithuthukise ukufana nokushelela kwe-coating.
4.2.Izingubo zodonga zangaphandle
Ezingxenyeni zodonga zangaphandle ezinezidingo eziphezulu zesimo sezulu kanye nokumelana ne-alkali, i-HEC isiza ukuthuthukisa ukumelana ne-UV nokuguga, futhi ithuthukisa ukunamathela kokunamathela kungqimba oluyisisekelo.
4.3.Izembatho ezinemibala kanye nezingubo zobuciko
I-HEC ingasiza ekulungiseni ukuzinza kokumiswa kwezinhlayiya, ivimbele ukucwiliswa kwezinhlayiya zombala ezimbotsheni ezinemibala, futhi ithuthukise ukufana kokwakheka kwefilimu nemiphumela yokubuka.
5. Izinyathelo zokuphepha
Gwema i-agglomeration: I-HEC ijwayele ukwenza ama-agglomerations "eso lezinhlanzi" phakathi nenqubo yokwengeza amanzi, okudingeka ivinjwe ngokufaka impushana kancane kanye nokugqugquzela okuphumelelayo.
Vimbela ukujiya ngokweqile: Inani elingeziwe lidinga ukulawulwa ngokuqinile ukuze kuvinjwe ukuphazamiseka ekwakhiweni noma kwefilimu ngenxa ye-viscosity eyeqile.
Sebenzisa nama-preservatives: I-HEC iyi-polymer yemvelo eyonakaliswa kalula ngama-microorganisms. Kufanele isetshenziswe nezilondolozi ezifanele ukuze kwandiswe isikhathi sokulondoloza.
Njengesengezo esisebenzayo esisebenza kahle kakhulu, ukuvikelwa kwemvelo nokusebenza okuphelele, i-hydroxyethyl cellulose HEC idlala indima engenakuthathelwa indawo esikhathini samanje.imboni yokuhlanganisa amanzi. Ukujiya kwayo okuhle kakhulu, ukumiswa, ukugcobisa kanye nemisebenzi yokusiza yokwakha ayithuthukisi nje kuphela ukusebenza okuphelele kwemikhiqizo yokumboza, kodwa futhi ihlangabezana nesiqondiso sokuthuthukiswa kokuvikelwa kwemvelo kanye nomkhuba ophansi we-VOC. Ngesidingo esikhulayo sezithasiselo ezisebenza kahle embonini yokuhlanganisa, amathuba okufaka isicelo e-HEC azokhula abe banzi.
Isikhathi sokuthumela: May-16-2025