HEC, lossis Hydroxyethyl cellulose, ua lub luag haujlwm tseem ceeb hauv cov txheej txheem, ua haujlwm ntau yam uas ua rau muaj kev ua tau zoo thiab zoo ntawm cov khoom kawg.Cov txheej txheem yog siv rau qhov chaw rau ntau lub hom phiaj, nrog rau kev tiv thaiv, kho kom zoo nkauj, lossis kev ua haujlwm zoo.Nyob rau hauv cov ntsiab lus no, HEC ua hauj lwm raws li ib tug ntau yam additive nrog cov khoom uas pab nyob rau hauv lub formulation thiab daim ntawv thov ntawm coatings.
1.Thickening Agent:
Ib qho ntawm cov haujlwm tseem ceeb ntawm HEC hauv cov txheej txheej yog nws lub luag haujlwm ua tus neeg sawv cev thickening.HEC yog cov dej-soluble polymer uas nthuav tawm lub peev xwm los ua kom cov viscosity ntawm aqueous daws.Nyob rau hauv coatings formulations, nws pab nyob rau hauv ua kom tiav qhov xav tau sib xws thiab rheological zog.Los ntawm kev tswj cov viscosity, HEC ua kom raug tshem tawm ntawm cov khoom ua kom zoo, tiv thaiv kev teeb tsa, thiab ua kom yooj yim rau kev siv cov txheej txheej rau hauv substrate.Cov yam ntxwv no tshwj xeeb tshaj yog muaj txiaj ntsig zoo hauv cov xim pleev xim uas tswj qhov zoo viscosity yog qhov tseem ceeb rau kev yooj yim ntawm daim ntawv thov thiab xav tau txheej thickness.
2.Stabilizer thiab Suspension Aid:
HEC kuj tseem ua haujlwm ruaj khov thiab ncua kev pab cuam hauv cov txheej txheem txheej txheej.Nws pab kom ruaj khov pigments, fillers, thiab lwm yam additives nyob rau hauv lub txheej txheej txheej, tiv thaiv lawv los yog sib cais thaum lub sij hawm cia thiab daim ntawv thov.Cov cuab yeej no ua kom cov txheej txheem tswj hwm nws cov homogeneity thiab uniformity, txhim kho nws cov kev ua tau zoo thiab cov tsos.Los ntawm kev txhim kho kev ruaj ntseg ntawm cov qauv, HEC pab txhawb kev ua haujlwm ntev thiab ua haujlwm ntev ntawm cov txheej.
3. Txhim kho Flow thiab Levelling:
Lub xub ntiag ntawm HEC nyob rau hauv cov txheej txheem txhawb kev txhim kho kev khiav thiab qib tus yam ntxwv.Yog li ntawd, cov coatings uas muaj HEC nthuav tawm cov khoom ntub dej zoo dua, tso cai rau lawv kom sib npaug ntawm qhov chaw substrate.Qhov no txhim kho tag nrho cov tsos ntawm coated nto los ntawm kev txo qhov tsis xws luag xws li txhuam cov cim, cov qhab nia rau cov menyuam, lossis tsis sib xws.Kev txhim kho ntws thiab qib theem kuj tseem ua rau kev tsim kom muaj kev sib luag thiab zoo ib yam, txhim kho qhov zoo nkauj ntawm qhov coated nto.
4. Dej Retention thiab Zaj duab xis tsim:
HEC pab hauv kev tuav dej hauv cov txheej txheem txheej txheej, uas yog qhov tseem ceeb rau kev tsim cov yeeb yaj kiab.Los ntawm kev khaws cov dej noo, HEC ua kom yooj yim evaporation ntawm cov dej los ntawm txheej thaum ziab lossis kho cov txheej txheem.Qhov kev tswj evaporation no ua kom lub cev qhuav thiab txhawb kev tsim cov yeeb yaj kiab txuas ntxiv thiab cohesive ntawm lub substrate.Lub xub ntiag ntawm HEC nyob rau hauv zaj duab xis kuj pab txhim kho nws adhesion rau lub substrate, uas ua rau ib tug ntau check thiab kav ntev txheej.
5.Compatibility thiab Versatility:
HEC nthuav qhia kev sib raug zoo nrog ntau yam ntawm cov khoom xyaw txheej, nrog rau cov xim, cov ntawv khi, cov kuab tshuaj, thiab lwm yam khoom ntxiv.Qhov kev ua tau zoo no tso cai rau nws muaj txiaj ntsig zoo rau hauv ntau hom txheej txheej, nrog rau cov xim pleev xim dej, nplaum nplaum, sealants, thiab txheej txheej.Txawm hais tias siv rau hauv cov txheej txheem tsim vaj tsev, cov tsheb ua tiav, lossis cov txheej txheem ua lag luam, HEC muaj kev ua tau zoo thiab kev sib raug zoo, ua rau nws yog qhov kev xaiv zoo tshaj plaws rau cov tsim qauv thoob plaws kev lag luam sib txawv.
6.Rheology Hloov Kho:
Tshaj nws cov khoom thickening, HEC kuj ua haujlwm raws li kev hloov kho rheology hauv cov txheej txheem txheej txheej.Nws cuam tshuam tus cwj pwm ntws thiab viscosity profile ntawm txheej, imparting shear-thinning lossis pseudoplastic zog.Qhov kev tswj rheological no tso cai rau kev siv cov txheej txheem yooj yim dua, vim nws tuaj yeem kis tau yooj yim lossis txau rau hauv cov substrate.Tsis tas li ntawd, HEC pab txo qis splattering thiab dripping thaum lub sij hawm daim ntawv thov, ua rau kom muaj txiaj ntsig zoo dua thiab cov txheej txheem siv cov txheej txheem.
7. Txhim khu kev ruaj ntseg thiab txee lub neej:
Cov txheej uas muaj HEC ua kom pom kev ruaj khov thiab ntev lub neej txee vim nws muaj peev xwm los tiv thaiv theem sib cais, sedimentation, lossis syneresis.Los ntawm kev tswj xyuas kev ncaj ncees ntawm kev tsim, HEC xyuas kom meej tias cov txheej txheem tseem siv tau nyob rau lub sijhawm ntev, txo cov khoom pov tseg thiab cov teeb meem ntsig txog kev cia.Qhov kev ruaj ntseg no yog qhov tseem ceeb tshwj xeeb hauv kev lag luam coatings qhov kev ua tau zoo thiab cov khoom zoo yog qhov tseem ceeb.
HEC plays lub luag haujlwm ntau yam hauv cov txheej txheem txheej txheej, muab cov txiaj ntsig xws li thickening, stabilization, txhim kho ntws thiab levelling, dej tuav, sib raug zoo, rheology hloov kho, thiab txhim khu kev ruaj ntseg.Nws versatility thiab kev ua tau zoo ua rau nws yog ib qho tseem ceeb additive nyob rau hauv lub formulation ntawm ntau yam coatings, pab rau lawv cov kev ua tau zoo, durability, thiab zoo nkauj thov.Raws li qhov kev thov rau cov txheej txheem zoo txuas ntxiv mus ntxiv, qhov tseem ceeb ntawm HEC hauv kev ua tiav cov khoom tsim tawm uas xav tau tseem yog qhov tseem ceeb hauv kev lag luam coatings.
Post lub sij hawm: May-11-2024