Daim ntawv thov ntawm Hydroxyethyl Cellulose hauv Coatings
Hydroxyethyl cellulose (HEC)yog ib tug ntau yam polymer lug siv nyob rau hauv ntau yam industries vim nws zoo heev thickening, stabilizing, thiab zaj duab xis-forming zog. Hauv thaj tsam ntawm cov txheej txheej, HEC ua lub luag haujlwm tseem ceeb hauv kev txhim kho viscosity, txhim kho rheological zog, thiab muab cov yeeb yaj kiab zoo tshaj plaws.it tham txog qhov cuam tshuam ntawm HEC ntawm txheej txheej, xws li nws cov viscosity, leveling, sag resistance, thiab adhesion.
Taw qhia:
Hydroxyethyl cellulose (HEC) yog non-ionic, dej-soluble polymer muab los ntawm cellulose los ntawm kev hloov tshuaj. Nws yog dav siv nyob rau hauv ntau yam lag luam xws li tshuaj, kev kho tus kheej, kev tsim kho, thiab txheej txheej vim nws cov khoom tshwj xeeb. Hauv thaj tsam ntawm cov txheej txheej, HEC ua haujlwm ntau yam, suav nrog kev ua kom tuab, ruaj khov, thiab muab cov khoom ua yeeb yaj kiab. Kab lus no tsom mus rau cov ntawv thov ntawm HEC hauv cov txheej txheem thiab tshawb xyuas nws qhov cuam tshuam rau kev ua haujlwm txheej txheej.
Daim ntawv thov ntawm HEC hauv Coatings:
Thickening Agent:
HEC ua haujlwm ua tus neeg ua haujlwm thickening zoo hauv cov txheej txheem txheej txheej. Los ntawm kev ua kom cov viscosity ntawm txheej txheej, HEC txhim khu kev ruaj ntseg ntawm cov xim thiab cov khoom siv ntxiv, tiv thaiv kev daws teeb meem lossis kev sib koom ua ke thaum khaws cia thiab siv. Lub viscosity ntawm cov txheej tuaj yeem hloov kho los ntawm qhov sib txawv ntawm HEC, tso cai rau cov qauv tsim kom tau raws li cov kev thov tshwj xeeb. Tsis tas li ntawd, HEC muab tus cwj pwm pseudoplastic, txhais tau tias nws txo qis viscosity nyob rau hauv shear, ua kom yooj yim rau daim ntawv thov thiab qib ntawm txheej.
Rheology Modifier:
Ntxiv rau qhov thickening, HEC ua raws li kev hloov kho rheology hauv cov txheej txheem txheej txheej. Nws cuam tshuam tus cwj pwm ntws ntawm cov txheej txheej, txhim kho nws cov khoom siv xws li txhuam, txau, thiab cov menyuam-coatability. HEC muab tus cwj pwm shear-thinning rau txheej, tso cai rau kev siv du thaum tuav cov viscosity thaum lub zog shear raug tshem tawm. Cov cuab yeej no muaj txiaj ntsig tshwj xeeb hauv kev txo cov splattering thaum siv tshuaj tsuag thiab ua kom muaj kev tiv thaiv ib puag ncig ntawm substrates nrog ntau qhov sib txawv ntawm qhov chaw.
Movie qub:
HEC pab txhawb rau kev tsim cov yeeb yaj kiab tas mus li thiab zoo ib yam ntawm cov substrate nto. Raws li cov txheej txheej dries, HEC molecules sib haum los tsim cov qauv zaj duab xis cohesive, muab cov adhesion zoo heev rau lub substrate thiab txhim kho lub durability ntawm txheej. Cov khoom ua yeeb yaj kiab ntawm HEC yog qhov tseem ceeb rau kev ua tiav cov yam ntxwv ntawm cov txheej txheem xws li hardness, yooj, thiab huab cua tsis kam. Tsis tas li ntawd, HEC cov yeeb yaj kiab muaj cov dej tsis zoo, ua rau lawv haum rau cov coatings uas raug dej los yog cov av noo siab.
Kev cuam tshuam ntawm HEC ntawm Txheej Txheej Txheej Txheem:
viscosity tswj:
HEC ua kom muaj kev tswj xyuas meej ntawm cov viscosity ntawm cov txheej txheej, kom ntseeg tau tias qhov zoo tshaj plaws ntws thiab cov yam ntxwv theem. Kev tswj kom zoo viscosity tiv thaiv cov teeb meem xws li sagging, dripping, los yog tsis sib xws thaum lub sij hawm thov, ua rau txhim kho txheej zoo thiab zoo nkauj. Ntxiv mus, tus cwj pwm shear-thinning ntawm HEC ua kom yooj yim rau daim ntawv thov yam tsis muaj kev cuam tshuam rau txheej txheej.
Leveling thiab Sag Resistance:
Cov khoom rheological imparted los ntawm HEC pab txhawb kom zoo heev leveling thiab sag tsis kam ntawm coatings. Thaum lub sij hawm thov, HEC txo cov kev nyiam ntawm cov txheej los ua cov cim txhuam los yog cov menyuam stipple, uas ua rau muaj kev sib luag thiab zoo ib yam. Tsis tas li ntawd, HEC txhim kho tus cwj pwm thixotropic ntawm cov txheej txheej, tiv thaiv sagging los yog poob ntawm qhov chaw ntsug, yog li txhim kho daim ntawv thov kev ua haujlwm thiab txo cov khoom pov tseg.
Adhesion:
HEC txhim khu cov adhesion ntawm coatings rau ntau yam substrates, xws li hlau, ntoo, yas, thiab pob zeb. Cov cuab yeej ua yeeb yaj kiab ntawm HEC tsim kev sib raug zoo ntawm cov txheej txheem thiab cov substrate, txhim kho cov adhesion ntev thiab ua haujlwm ntev. Qhov no yog qhov tseem ceeb tshwj xeeb hauv cov txheej txheej sab nrauv uas raug rau ib puag ncig hnyav, qhov adhesion plays lub luag haujlwm tseem ceeb hauv kev tiv thaiv txheej tsis ua haujlwm xws li tev lossis delamination.
Kev nce qib hauv HEC Technology:
Kev nce qib tsis ntev los no hauvHECthev naus laus zis tau coj mus rau kev tsim kho HEC derivatives nrog txhim kho cov yam ntxwv ua haujlwm. Cov kev hloov kho no suav nrog kev hloov pauv hauv qhov hnyav molecular, qib kev hloov pauv, thiab cov qauv tshuaj lom neeg, tso cai rau cov kev daws teeb meem kom tau raws li cov kev thov tshwj xeeb. Tsis tas li ntawd, resea
rch kev siv zog tau tsom mus rau kev txhim kho ib puag ncig kev ruaj ntseg ntawm HEC cov txheej txheem tsim khoom, ua rau muaj qhov tshwm sim ntawm bio-based HEC tau los ntawm cov khoom siv txuas ntxiv dua tshiab xws li cellulose los ntawm cov nroj tsuag biomass.
Kev Tshaj Tawm Tshaj Tawm hauv HEC Daim Ntawv Thov hauv Txheej Txheej:
Environmentally Friendly Formulations:
Nrog rau kev nce ntxiv ntawm kev ruaj khov thiab kev tswj hwm ib puag ncig, muaj kev xav tau ntau ntxiv rau cov txheej txheem txheej txheej uas siv cov khoom siv hauv eco-phooj ywg xws li HEC. Bio-based HEC muab tau los ntawm cov khoom siv txuas ntxiv tau muab kev hloov pauv mus rau cov roj av-raws li polymers, txo cov pa roj carbon hneev taw thiab kev cuam tshuam ib puag ncig.
High-Performance Coatings:
Qhov kev thov rau cov txheej txheem kev ua haujlwm siab nrog kev ua haujlwm zoo dua, huab cua tsis kam, thiab cov khoom zoo nkauj yog ua rau kev siv cov khoom siv ntxiv xws li HEC. Formulators tab tom tshawb nrhiav txoj hauv kev tshiab los txhim kho kev ua tau zoo ntawm cov txheej txheem siv HEC-raws li cov qauv, ua kom muaj ntau yam kev siv xws li cov xim vaj tsev mus rau automotive txheej.
Cov Txheej Txheem Digital:
Kev nce qib hauv cov thev naus laus zis thev naus laus zis, xws li inkjet luam ntawv thiab cov xim digital txuam, nthuav tawm cov hauv kev tshiab rau kev siv HEC hauv cov txheej txheem. HEC-based formulations tuaj yeem ua kom zoo rau kev sib raug zoo nrog cov txheej txheem luam ntawv digital, ua kom muaj kev tswj xyuas meej ntawm txheej txheej thiab txhim kho kev luam ntawv thiab xim raug.
Hydroxyethyl cellulose (HEC)plays lub luag haujlwm tseem ceeb hauv kev txhim kho kev ua tau zoo ntawm cov txheej txheem los ntawm kev ua haujlwm ua cov thickener, rheology modifier, thiab zaj duab xis qub. Nws cov khoom tshwj xeeb ua rau muaj kev tswj xyuas meej ntawm viscosity, zoo heev leveling, sag kuj, thiab superior adhesion rau substrates. Kev nce qib tsis ntev los no hauv HEC thev naus laus zis thiab cov qauv tshiab hauv nws daim ntawv thov underscore nws qhov tseem ceeb ua ntau yam ntxiv hauv cov txheej txheem txheej txheej. Raws li kev lag luam coatings txuas ntxiv mus, HEC tau npaj los ua ib feem tseem ceeb hauv kev txhim kho cov txheej txheem zoo, cov txheej txheem ruaj khov.
Post lub sij hawm: Apr-08-2024