Iselulosi yeHydroxyethyl (HEC)i-polymer engeyiyo i-ionic yamanzi e-soluble esetyenziswa ngokubanzi kwiingubo, izinto zokwakha, iikhemikhali zemihla ngemihla, amayeza, ukugrumba ioli kunye namanye amashishini. Kwintsimi yeengubo, i-HEC inexabiso elibalulekileyo lesicelo njenge-thickener, i-stabilizer kunye ne-film-forming aid kunye nokusebenza okugqwesileyo.
1. Indima ephambili ye-HEC kwiingubo
1.1.Isiphumo sokutyeba
Omnye weyona misebenzi ingundoqo ye-HEC kukubonelela ngesiphumo esihle sokuqina kweengubo. Ngokulungelelanisa umlinganiselo kunye nemodeli ye-viscosity ye-HEC, ukugqoka kunokuba neepropati ezifanelekileyo ze-rheological ngexesha lokugcina, ukwakhiwa kunye nokubunjwa kwefilimu. Ukutyeba akuphuculi nje ukunqunyanyiswa kunye neepropathi zokuchasa ukuhlaliswa kwengubo, kodwa kwakhona kuphucula ukuvakalelwa kwebrashi kunye nokusebenza kokuxhoma ngexesha lokugquma, ukunciphisa ukutshiza nokuxhoma.
1.2.Ukuphucula ukusebenza kolwakhiwo
I-HEC ine-lubricity egqwesileyo kunye neempawu zokulinganisa. Ngethuba lokuguqa, ukuxubha okanye ukutshiza, kunokuphucula ukusasazeka kunye nokwakhiwa kwemvakalelo yokugquma, okwenza ukuba i-coating ibe lula ukuyisebenzisa ngokulinganayo kunye nokuphucula umgangatho jikelele wengubo. I-HEC inamandla amakhulu okugcina amanzi, anokuthi alibazise ngokufanelekileyo ukuguqulwa kwamanzi kunye nokunceda ukuphucula ixesha elivulekileyo kunye nokuguquguquka kokwakhiwa kwepeyinti.
1..3.Zinzise inkqubo ye-emulsion
Kwiipeyinti ezisekelwe emanzini ezifana nepeyinti ye-latex, i-HEC, njenge-polymer engeyiyo i-ionic, inokuzinzisa i-dispersion state of particles emulsion kunye ne-pigments kunye ne-fillers, ukukhusela i-stratification kunye ne-agglomeration ebangelwa yi-particle flocculation okanye i-sedimentation, kunye nokuphucula ukuzinza kokugcinwa kwepeyinti.
1.4.Ukuncedisa ekwenzeni ifilimu
Nangona i-HEC ngokwayo ayiyona into eyenza ifilimu, isasazwa ngokulinganayo kwifilimu yokugqoka kwaye inokunceda ekwenzeni i-dense and smooth coating, iphucule ingqibelelo kunye nokubonakala komgangatho wefilimu, kwaye ifaneleke ngokukodwa kwiinkqubo zepeyinti zodonga lwangaphakathi.
2. Iinzuzo zokusebenza kwe-HEC
Ukunyibilika kakuhle kwamanzi: I-HEC inokuchithwa kakuhle kumanzi abandayo kunye nashushu, kwaye kulula ukongeza kwinkqubo yokuqulunqa ukwenza isisombululo esicacileyo okanye esiguquguqukayo.
I-non-ionicity: Inokuhambelana kakuhle kunye namacandelo e-ionic ahlukeneyo kunye noluhlu olubanzi lweentlobo ze-emulsions, kwaye ifanelekile kwiinkqubo zokugquma ezinemilinganiselo ye-pH eyahlukeneyo.
Ukuzinza okuphezulu: Inokuhlala izinzile kuluhlu olubanzi lwe-pH (ngokuqhelekileyo i-3 ~ 11) kwaye ayinakukwazi ukulahlekelwa yintsebenzo ngenxa yeenguqu kwi-acidity kunye ne-alkalinity.
Ikhuselekile kunye nokusingqongileyo: I-HEC ivela kwi-cellulose yendalo, i-biodegradable, idibana nemimiselo yendalo, ayinayo i-VOC, kwaye ayikhuphi iigesi eziyingozi.
3. Uyisebenzisa njani iHEC
Xa usebenzisa i-HEC, kufuneka ubeke ingqalelo kwinkqubo yokusabalalisa kunye nokutshatyalaliswa kwayo. La manyathelo alandelayo adla ngokucetyiswa:
Ukusasazwa komgubo owomileyo: fafaza kancinci kancinci i-HEC umgubo owomileyo kumanzi abandayo avuselelweyo ukunqanda ukungqubana. Izixhobo zokucheba eziphakamileyo zingasetyenziselwa ukuphucula ukusebenza kakuhle kokusasazwa;
Ukumanzisa kunye nokuvuvukala: Iinqununu ze-HEC ezihlakaziweyo zifuna ukufunxa ngokupheleleyo amanzi kunye nokuvuvukala, okuthatha ngokubanzi i-10 ~ 30 imizuzu, kuxhomekeke kwimodeli ye-HEC kunye nokushisa kwamanzi;
Inyibilikisiwe kwaye ibonakale: Emva kokumanzisa, qhubeka uvuselela okanye unyuse ubushushu ngokufanelekileyo ukuze unyibilike ngokupheleleyo kulwelo lwe-viscous ebonakalayo;
Yongeza kwifomula: Isisombululo se-HEC sinokudibaniswa kwinqanaba lokuqala okanye emva kwexesha lezithako ukulungisa i-viscosity kunye neempawu ze-rheological zenkqubo njengoko kufuneka.
Abanye abavelisi banikezela ngezisombululo zangaphambili okanye i-HEC elungele ukusetyenziswa, enokuthi yongezwe ngokuthe ngqo ukwenza lula inkqubo yokusebenza.
4. Imizekelo yezicelo ze-HEC kwiintlobo ezahlukeneyo zeengubo
4.1.Ipeyinti yelatex yangaphakathi
Njengoko i-thickener ephambili, i-HEC iphucula i-thixotropy kunye nokwakhiwa kokuvakalelwa kwengubo, iphucula ukusebenza kwe-anti-sagging, kwaye iphucula ukufana kunye nokugudiswa kwengubo.
4.2.Iingubo zodonga zangaphandle
Kwiingubo zangaphandle zodonga ezineemfuno eziphezulu zemozulu kunye nokuxhathisa kwe-alkali, i-HEC inceda ukuphucula ukuchasana kwe-UV kunye nokuguga, kwaye iphucula ukunamathela kwengubo kwisiseko sesiseko.
4.3.Iingubo ezinemibala kunye neengubo zobugcisa
I-HEC inokunceda ukulungelelanisa ukuzinza kokumiswa kweengqungquthela, ukuthintela ukuchithwa kweengqungquthela zombala kwiingubo ezinemibala, kunye nokuphucula ukufana kwefilimu kunye nemiphumo ebonakalayo.
5. Izilumkiso
Kuphephe i-agglomeration: I-HEC ithanda ukwenza ii-agglomerations ze-"fish eye" ngexesha lenkqubo yokongeza amanzi, ekufuneka ithintelwe ngomgubo ocothayo kunye nokuvuselela okusebenzayo.
Ukuthintela ukuqina okugqithisileyo: Imali eyongeziweyo kufuneka ilawulwe ngokungqongqo ukuthintela ukuphazamiseka kulwakhiwo okanye iziphene zefilimu ngenxa ye-viscosity egqithisileyo.
Ukusetyenziswa kunye nezilondolozi: i-HEC yipolymer yendalo ethotywa lula yi-microorganisms. Kufuneka isetyenziswe kunye nezigcini ezifanelekileyo zokwandisa ixesha lokugcina.
Njengesongezo esisebenzayo esisebenza ngokufanelekileyo, ukhuseleko lokusingqongileyo kunye nokusebenza okubanzi, i-hydroxyethyl cellulose HEC idlala indima engenakuthathelwa indawo kule mihla.ishishini lokugquma amanzi. Ukutyeba kwayo okugqwesileyo, ukunqunyanyiswa, ukuthambisa kunye nokwakhiwa kwemisebenzi encedisayo ayiphuculi nje kuphela ukusebenza ngokubanzi kweemveliso zokwaleka, kodwa nokuhlangabezana nesikhokelo sophuhliso lokhuseleko lokusingqongileyo kunye nentsingiselo ephantsi ye-VOC. Ngemfuno ekhulayo yezongezo eziphezulu zokusebenza kwishishini lokugqoka, ithemba lesicelo se-HEC liya kuba libanzi ngakumbi.
Ixesha lokuposa: May-16-2025