Hydroxyethyl Cellulose (HEC) yog ib qho uas nquag siv cov thickener, emulsifier thiab stabilizer, dav siv nyob rau hauv coatings, tshuaj pleev ib ce, detergents, tsev cov ntaub ntawv thiab lwm yam teb. Nws qhov kev siv feem ntau yog txiav txim siab raws li qhov tshwj xeeb daim ntawv thov scenario thiab formulation yuav tsum tau.
1. Txheej kev lag luam
Hauv cov txheej txheem dej, hydroxyethyl cellulose feem ntau yog siv los ua cov thickener thiab tshem tawm cov neeg sawv cev los pab kho cov viscosity thiab rheology ntawm txheej. Feem ntau, qhov kev siv piv yog 0.1% rau 2.0% (qhov hnyav piv). Qhov sib piv tshwj xeeb yog nyob ntawm hom txheej, qhov xav tau rheological zog thiab kev sib xyaw ntawm lwm cov khoom xyaw.
2. Cov khoom siv tshuaj pleev ib ce thiab kev tu tus kheej
Hauv cov tshuaj pleev ib ce, hydroxyethyl cellulose yog siv los ua cov thickener thiab stabilizer los pab txhim kho kev ntxhib los mos thiab kev ua haujlwm ntawm cov khoom. Kev siv feem ntau yog 0.1% rau 1.0%. Piv txwv li, hauv tshuaj zawv plaub hau, tshuaj ntxuav lub ntsej muag, tshuaj pleev thiab gel, HEC tuaj yeem muab kev kov zoo thiab ruaj khov.
3. Cov tshuaj ntxuav tes thiab tshuaj ntxuav tes
Hauv cov tshuaj ntxuav dej, hydroxyethyl cellulose yog siv los kho cov viscosity thiab tshem tawm ntawm cov khoom thiab tiv thaiv cov nag lossis daus ntawm cov khoom siv. Qhov kev siv feem ntau yog 0.2% rau 1.0%. Tus nqi ntawm HEC siv nyob rau hauv ntau hom tshuaj ntxuav tej zaum yuav txawv.
4. Cov khoom siv hauv tsev
Hauv cov khoom siv hauv tsev, xws li cov cement slurry, gypsum, pobzeb adhesives, thiab lwm yam, hydroxyethyl cellulose yog siv los ua cov dej tuav thiab cov thickener. Feem ntau, qhov kev siv piv yog 0.1% rau 0.5%. HEC tuaj yeem txhim kho kev tsim kho ntawm cov khoom siv, txuas ntxiv lub sijhawm ua haujlwm, thiab txhim kho cov cuab yeej los tiv thaiv sagging.
5. Lwm yam kev siv
Hydroxyethyl cellulose kuj tau siv dav hauv lwm qhov chaw, xws li zaub mov thiab tshuaj. Qhov kev siv feem ntau yog hloov kho raws li kev thov tshwj xeeb. Piv txwv li, hauv kev lag luam zaub mov, HEC tuaj yeem siv los ua cov thickener, stabilizer thiab emulsifier, thiab nws cov kev siv feem ntau yog tsawg heev.
Cov kev ceev faj
Thaum siv hydroxyethyl cellulose, koj yuav tsum tau xyuam xim rau cov ntsiab lus hauv qab no:
Txoj kev sib cais: Lub solubility ntawm HEC cuam tshuam los ntawm qhov kub thiab txias, pH tus nqi thiab nplawm tej yam kev mob. Nws feem ntau yuav tsum tau maj mam ntxiv rau dej thiab nplawm kom huv si.
Formula compatibility: Cov khoom xyaw mis sib txawv tuaj yeem cuam tshuam qhov kev ua tau zoo ntawm HEC, yog li yuav tsum muaj kev ntsuas kev sib raug zoo thaum lub sijhawm tsim cov txheej txheem.
viscosity tswj: Raws li qhov xav tau ntawm cov khoom kawg, xaiv qhov tsim nyog HEC hom thiab ntau npaum li cas kom ua tiav qhov xav tau viscosity.
Kev siv piv ntawm hydroxyethyl cellulose yog ib qho kev hloov pauv uas yuav tsum tau hloov kho raws li kev thov tshwj xeeb thiab kev tsim. Kev nkag siab txog kev ua tau zoo ntawm HEC hauv cov ntawv thov sib txawv tuaj yeem pab txhim kho cov khoom ua tau zoo thiab zoo.
Post lub sij hawm: Aug-08-2024