Daim ntawv thov ntawm hydroxyethyl cellulose hauv cov txheej txheej
Hydroxyethyl cellulose (HEC)yog ib qho kev siv zog polymer ntau yam siv rau ntau qhov kev lag luam vim nws cov tuab heev, ruaj khov, thiab ua yeeb yam-ua yeeb yaj kiab cov khoom. Nyob rau hauv lub realm ntawm txheej, hec ua tau lub luag haujlwm tseem ceeb hauv kev ua yeeb yam ntawm kev ua yeeb yam, thiab muab cov kev sib txawv ntawm cov yeeb yam ntawm kev ua yeeb yam, thiab qhia txog kev ua yeeb yam zoo, thiab muab cov kev sib txawv ntawm cov khoom siv viscosity, qib siab, sag tiv thaiv, thiab adchesion.
Taw qhia:
Hydroxyethyl cellulose (HEC) yog tsis-ionic, dej-soluble polymer muab tau los ntawm cellulose los ntawm kev hloov kho tshuaj lom neeg. Nws yog dav siv nyob rau hauv ntau yam kev lag luam xws li kws tshuaj, kev tu tus kheej, kev tsim kho, thiab txheej ci rau nws cov khoom tshwj xeeb. Hauv lub realm ntawm txheej, Hec pabcuam pab ntau yam haujlwm, suav nrog cov tuab tuab, ruaj khov, thiab muab cov khoom sib dhos. Kab lus no tsom rau cov ntawv thov ntawm HEC hauv cov txheej txheem thiab tshawb pom nws cov kev cuam tshuam ntawm cov txheej txheem ua haujlwm.
Cov ntawv thov ntawm HEC hauv cov txheej txheem:
Tus neeg sawv cev tuab:
Hec pabcuam ua ib tus neeg sawv cev ua kom zoo hauv cov txheej txheem txheej txheem txheej txheem. Los ntawm nce lub viscosity ntawm cov txheej txheem viscosity, HEC muab kev ruaj ntseg ntawm pigments thiab ntxiv, tiv thaiv kev tiv thaiv lossis synneresis thaum lub sijhawm khaws cia thiab ntawv thov. Lub viscosity ntawm txheej tuaj yeem hloov kho los ntawm kev sib txawv ntawm HEC, tso cai rau kev ua kom pom cov ntawv ua kom tau raws li cov ntawv thov. Ib qho ntxiv, HEC muab Pseudopastic tus cwj pwm, lub ntsiab lus nws cov khoom pov thawj txo viscosity nyob rau hauv shear, muab cov txheej txheem yooj yim thiab ntsuas cov txheej txheej.
Rheology kho mob rhuaurier:
Ntxiv rau cov tuab yaj kiab ua tuab, HEC ua raws li kev ntseeg rheology hauv cov txheej txheej ua yeeb yam. Nws cuam tshuam cov cwj pwm ntws ntawm cov txheej txheej, txhim kho nws cov ntawv thov xws li cov txhuam hniav, tshuaj tsuag, thiab cov menyuam, thiab cov menyuam muaj zog. Hec Cuav-thev tus cwj pwm rau txheej, tso cai rau cov ntawv thov du thaum tswj cov viscosity thaum lub zog shear raug tshem tawm. Cov cuab yeej no yog tau txais txiaj ntsig tshwj xeeb hauv kev txo cov piam sij thaum daim ntawv thov tshuaj tsuag thiab ua kom muaj kev sib txuam nrog kev sib txawv ntawm cov khoom sib txawv.
Zaj duab xis yav tas los:
Hi pab txhawb rau kev tsim cov kev ua si txuas ntxiv thiab uniform ntawm cov nto substrate. Raws li cov txheej txheej dries, HEC Molecules Dlisign los tsim cohesive zaj duab xis qauv, muab adchesion zoo heev rau cov txheej txheem durability ntawm txheej. Cov yeeb yaj kiab ua yeeb yam ntawm HEC yog qhov tseem ceeb rau kev ua tiav cov yam ntxwv uas xav tau xws li Hardness, yooj yim, thiab huab cua tsis kam. Tsis tas li ntawd, HEC cov yeeb yaj kiab ua tau zoo, ua rau lawv haum rau cov dej noo lossis cov av noo ib puag ncig.
Kev cuam tshuam ntawm HEC ntawm txheej ua haujlwm:
Viscosity tswj:
HEC ua rau muaj kev tswj hwm kev tswj hwm ntawm lub piscosity ntawm cov tshuaj pleev xim, ua kom muaj txiaj ntsig zoo thiab nce qib. Kev Tsim Nyog Viscosity tiv thaiv cov teeb meem xws li sagging, dripping, lossis kev pab them tsis ncaj rau thaum thov, ua kom zoo dua qub. Ntxiv mus, tus cwj pwm shear-thinning ntawm HEC CARDITATES yooj yim daim ntawv thov yam tsis muaj kev cuam tshuam cov txheej txheem kev ua haujlwm.
Leveling thiab sag tiv thaiv:
Lub zog rheological tau muab los ntawm HEC pab txhawb kom zoo heev kev ua haujlwm thiab sag tiv taus ntawm txheej txheej. Thaum lub sijhawm thov, HEC txo qis ntawm cov txheej txheem ntawm cov txheej txheem los ua kom txhuam cov cim lossis cov tub qaug stipple, ua rau muaj kev du thiab tsis zoo. Additionally, HEC enhances the thixotropic behavior of coatings, preventing sagging or dripping on vertical surfaces, thus improving application efficiency and reducing material waste.
Adhesion:
HEC muab cov nplaum ntawm cov txheej txheem rau ntau cov substrates, suav nrog cov hlau, ntoo, plastics, thiab pob zeb. Cov zaj duab xis-tsim cov khoom ntawm HEC tsim cov kev sib raug zoo ntawm cov txheej thiab cov txheej txheem, txhim kho lub sijhawm ntev dua thiab kav ntev. Qhov no yog qhov tseem ceeb tshwj xeeb rau sab nrauv cov xwm txheej muaj kev cuam tshuam nrog kev tiv thaiv ib qho tseem ceeb hauv kev tiv thaiv cov txheej tsis ua haujlwm xws li tev lossis delamination.
Kev nce qib hauv HEC thev naus laus zis:
Tsis ntev los no nce qib hauvTus paCov thev naus laus zis tau ua rau txoj kev txhim kho ntawm kev hloov kho hec derivatives nrog kev ua haujlwm zoo. Cov kev hloov kho no suav nrog kev hloov pauv ntawm kev ua haujlwm hnyav, qib degree hloov chaw, tso cai rau cov qauv tshuaj lom neeg kom tau raws li cov kev cai thov. Tsis tas li ntawd, Rea
Rch kev siv zog tau tsom rau kev txhim kho cov txheej txheem ib puag ncig ntawm hec muab tau los ntawm cov txheej txheem bio-based los ntawm cov khoom siv tshiab xws li cov cellulose los ntawm cov nroj tsuag biomass.
Tawm tshiab hauv HEC daim ntawv thov nyob rau hauv cov txheej txheem:
Ib puag ncig cov phooj ywg tsim:
Nrog kev nce qib kev nce nqi thiab cov kev cai ib puag ncig, muaj kev cog qoob loo rau cov txheej txheej uas siv rau hauv eco-phooj ywg additives xws li HEC. Bio-based Hec tau los ntawm cov khoom siv tau muaj dua tshiab rau lwm txoj kev roj av, raws li kev cuam tshuam carrole, raws li kev cuam tshuam ntawm cov pa roj carbon monoxide, txo cov pa roj av thiab ib puag ncig.
Kev ua haujlwm siab zoo:
Qhov kev thov rau cov txheej txheem ua tau zoo nrog cov huab cua zoo dua, thiab kev ua kom zoo nkauj yog tsav tsheb ua kev ntxiv ntawm kev kawm tau zoo xws li HEC. Cov ntawv sau tau tshawb xyuas cov kev kawm tshiab los txhim kho cov kev ua yeeb yam siv, catering rau cov duab sib txawv los ntawm cov duab kos duab los ntawm cov xim kos duab mus rau cov xim hlau kos duab rau cov xim hlau.
Cov Txheej Txheej Technologies:
Kev nce qib hauv cov txheej txheem digital, xws li inkjet luam ntawv thiab cov xim digital txuam, nthuav tawm cov kev thov tshiab rau daim ntawv thov ntawm Hec ua cov tsho tshaj. Hec-raws cov qauv tsim tau tuaj yeem ua kom zoo rau kev sib xyaw nrog cov txheej txheem kev tswj hwm cov txheej txheem thiab txhim kho xim zoo thiab xim raug.
Hydroxyethyl cellulose (HEC)Ua lub luag haujlwm tseem ceeb hauv kev txhim kho kev ua tau zoo ntawm kev ua haujlwm los ntawm kev pabcuam los ntawm kev siv cov tuab dua, thiab cov yeeb yaj kiab yav dhau los. Nws cov khoom tshwj xeeb ua kom meej meej tswj xyuas viscosity, vam meej vam meej, sag tsis kam, thiab cov nplaum zoo dua rau substrates. Cov kev txhim kho tsis ntev los no nyob rau hauv HEC thev naus laus zis thiab tawm cov ncauj lus hauv nws daim ntawv thov underscore nws tseem ceeb raws li kev ntxiv ntxiv rau hauv cov txheej txheem txheej txheem. Raws li cov txheej txheem kev lag luam txuas ntxiv mus evolve, Hec yog poised kom nyob twj tseem ceeb hauv kev txhim kho cov kev daws teeb meem zoo, kev siv hluav taws xob kom ruaj khov.
Lub Sijhawm Post: Apr-08-2024