Methyl hydroxyethyl cellulose (MHEC) yog ib qho tseem ceeb ntawm cellulose ether compound nrog kev hloov kho dual ntawm methylation thiab hydroxyethylation.Hauv cov txheej txheem dej, MHEC ua lub luag haujlwm tseem ceeb nrog nws lub cev thiab tshuaj lom neeg tshwj xeeb.
I. Cov yam ntxwv ua haujlwm
Thickening
Cov pab pawg hydroxyethyl thiab methyl hauv MHEC cov qauv molecular tuaj yeem tsim cov qauv sib txuas hauv cov kua dej, yog li ua kom cov viscosity ntawm cov txheej.Cov nyhuv thickening no ua rau nws ua tiav qhov zoo tshaj plaws rheology ntawm qhov tsis tshua muaj siab, yog li txo cov txheej txheej thiab txuag nqi.
Kev kho rheological
MHEC tuaj yeem muab cov txheej txheem zoo heev fluidity thiab anti-sagging zog.Nws cov yam ntxwv pseudoplastic ua rau cov txheej txheej muaj viscosity siab nyob rau hauv lub xeev zoo li qub, thiab cov viscosity tuaj yeem raug txo thaum lub sij hawm daim ntawv thov, uas yog yooj yim rau txhuam, cov menyuam txheej los yog txau cov haujlwm, thiab thaum kawg tuaj yeem kho cov viscosity qub tom qab kev tsim kho. ua tiav, txo sag los yog poob.
Kev tuav dej
MHEC muaj cov khoom tuav dej zoo thiab tuaj yeem tswj tau cov dej tso tawm tau zoo.Cov cuab yeej no tseem ceeb tshwj xeeb rau kev tiv thaiv cov xim pleev xim dej los ntawm kev tawg, hmoov thiab lwm yam tsis xws luag thaum lub sij hawm ziab, thiab tuaj yeem txhim kho qhov smoothness thiab uniformity ntawm txheej thaum lub sij hawm tsim kho.
Emulsion stability
Raws li ib tug surfactant, MHEC tuaj yeem txo qhov nro ntawm cov xim ntawm cov xim hauv cov xim dej thiab txhawb lawv cov kev sib txawv ntawm cov khoom siv hauv paus, yog li txhim kho qhov ruaj khov thiab qib ntawm cov xim thiab tsis txhob flocculation thiab nag lossis daus ntawm cov xim.
Biodegradability
MHEC yog muab los ntawm tej yam ntuj tso cellulose thiab muaj biodegradability zoo, uas ua rau nws muaj cuab kev zoo nyob rau hauv ib puag ncig tus phooj ywg dej-raws li cov xim thiab pab txo cov pa phem rau ib puag ncig.
2. Lub luag haujlwm tseem ceeb
Thickener
MHEC feem ntau yog siv los ua cov thickener rau cov xim dej los txhim kho nws cov kev tsim kho thiab cov yeeb yaj kiab zoo los ntawm kev ua kom cov viscosity ntawm cov xim.Piv txwv li, ntxiv MHEC rau cov xim latex tuaj yeem tsim cov txheej txheem sib xws ntawm phab ntsa kom tsis txhob muaj cov xim ntawm sagging thiab sag.
Rheology regulator
MHEC tuaj yeem kho cov rheology ntawm cov xim pleev xim dej kom ntseeg tau tias nws yooj yim rau kev thov thaum lub sij hawm tsim kho thiab tuaj yeem rov qab mus rau lub xeev ruaj khov.Los ntawm no rheological tswj, MHEC zoo txhim kho kev tsim kho ntawm cov txheej txheem, ua rau nws haum rau ntau txheej txheej txheej.
Cov dej-retaining agent
Nyob rau hauv cov dej-raws li txheej txheej, cov dej tuav cov cuab yeej ntawm MHEC pab kom ncua sij hawm nyob hauv cov dej hauv txheej txheej, txhim kho kom qhuav qhov sib xws ntawm cov txheej, thiab tiv thaiv kev tsim cov kab nrib pleb thiab qhov tsis xws luag.
Stabilizer
Vim nws muaj peev xwm emulsifying zoo, MHEC tuaj yeem pab cov dej-raws li txheej txheej tsim ib qho kev ruaj khov emulsion system, zam cov nag lossis daus thiab flocculation ntawm cov xim pigment, thiab txhim kho kev ruaj ntseg ntawm cov txheej.
Kev pab ua zaj duab xis
Thaum lub sij hawm ua zaj duab xis-txheej txheej txheej txheej txheej, MHEC muaj peev xwm txhawb nqa qhov sib xws thiab smoothness ntawm txheej, kom cov txheej txheej kawg muaj qhov zoo thiab ua haujlwm zoo.
3. Daim ntawv thov piv txwv
Latex xim
Hauv cov xim latex, lub luag haujlwm tseem ceeb ntawm MHEC yog thickening thiab tuav dej.Nws tuaj yeem txhim kho kev txhuam thiab dov cov khoom ntawm cov xim latex, thiab xyuas kom meej tias cov txheej txheem tswj tau zoo smoothness thiab uniformity thaum lub sij hawm ziab.Tsis tas li ntawd, MHEC tseem tuaj yeem txhim kho cov khoom tiv thaiv kev sib tsoo thiab sagging ntawm cov xim latex, ua rau kev tsim kho kom zoo dua.
Cov xim pleev xim rau dej
Hauv cov xim ntoo hauv dej, MHEC txhim kho qhov smoothness thiab uniformity ntawm cov xim xim los ntawm kev kho cov viscosity thiab rheology ntawm cov xim.Nws kuj tseem tuaj yeem tiv thaiv cov xim los ntawm kev tsim cov sagging thiab fouling ntawm cov ntoo saum npoo, thiab txhim kho cov nyhuv zoo nkauj thiab kav ntev ntawm zaj duab xis.
Waterborne architectural xim
Daim ntawv thov ntawm MHEC hauv cov xim pleev xim rau hauv dej tuaj yeem txhim kho kev tsim kho kev ua tau zoo thiab txheej txheej zoo ntawm cov xim, tshwj xeeb tshaj yog thaum txheej txheej xws li phab ntsa thiab qab nthab, nws tuaj yeem tiv thaiv qhov sagging thiab poob ntawm cov xim.Tsis tas li ntawd, cov khoom tuav dej ntawm MHEC tseem tuaj yeem txuas ntxiv lub sijhawm ziab ntawm cov xim, txo qhov tawg thiab qhov tsis xws luag.
Waterborne industrial xim
Hauv cov xim pleev xim rau hauv dej, MHEC tsis yog tsuas yog ua cov thickener thiab dej tuav tus neeg sawv cev xwb, tab sis kuj txhim kho cov dispersion thiab ruaj khov ntawm cov xim, kom cov xim muaj peev xwm tswj tau qhov kev ua tau zoo thiab ua haujlwm ntev nyob rau hauv complex industrial puag ncig.
IV.Kev lag luam zeem muag
Nrog rau cov kev cai tiv thaiv ib puag ncig nruj zuj zus ntxiv thiab kev xav tau ntau ntxiv rau cov khoom siv vaj tsev ntsuab, kev ua lag luam xav tau cov xim pleev xim dej txuas ntxiv mus ntxiv.Raws li ib qho tseem ceeb ntxiv hauv cov xim dej, MHEC muaj kev lag luam dav dav.
Environmental policy txhawb nqa
Thoob plaws ntiaj teb, cov kev cai ib puag ncig tau nce ntxiv kev txwv tsis pub muaj cov organic compound (VOC) emissions, uas tau txhawb nqa kev siv cov txheej txheem dej.Raws li ib puag ncig tus phooj ywg additive, MHEC plays lub luag haujlwm tseem ceeb hauv cov txheej txheem dej, thiab nws qhov kev thov yuav nce ntxiv nrog kev nthuav dav ntawm kev lag luam hauv dej.
Kev loj hlob xav tau hauv kev tsim kho kev lag luam
Qhov kev thov nce rau qis-VOC, cov txheej txheem ua haujlwm siab hauv kev tsim kho kev lag luam kuj tau txhawb nqa daim ntawv thov ntawm MHEC hauv cov txheej txheem dej hauv dej.Tshwj xeeb tshaj yog rau sab hauv thiab sab nrauv phab ntsa txheej, MHEC tuaj yeem muab kev tsim kho zoo thiab ua haujlwm ntev kom tau raws li kev lag luam xav tau.
Expanding daim ntawv thov ntawm industrial coatings
Qhov kev thov loj zuj zus rau cov txheej txheem ib puag ncig hauv kev lag luam kuj tau txhawb nqa daim ntawv thov ntawm MHEC hauv cov txheej txheem dej hauv dej.Raws li cov txheej txheem kev lag luam txhim kho mus rau ib puag ncig tus phooj ywg thiab kev ua haujlwm siab, MHEC yuav ua lub luag haujlwm tseem ceeb hauv kev txhim kho txheej txheej thiab cov yam ntxwv ntawm ib puag ncig.
Methyl hydroxyethyl cellulose (MHEC) plays lub luag haujlwm tseem ceeb hauv cov txheej txheem dej nrog nws cov thickening zoo heev, rheology hloov, dej tuav, emulsion stability thiab biodegradability.Nws daim ntawv thov nyob rau hauv cov dej-raws li txheej tsis tsuas yog txhim kho kev tsim kho kev ua tau zoo thiab txheej txheej zoo ntawm cov txheej txheej, tab sis kuj ua raws li cov qauv ntawm kev tiv thaiv ib puag ncig thiab kev tsim kho kom ruaj khov.Nrog rau kev lag luam loj hlob xav tau kev ua haujlwm siab, qis-VOC dej-raws li txheej txheej, daim ntawv thov kev cia siab ntawm MHEC hauv daim teb no yuav nthuav dav dua.
Post lub sij hawm: Jun-18-2024