Hydroxyethyl cellulose (HEC) yog qhov tseem ceeb ntau yam ntxiv uas yog qhov tseem ceeb ntawm kev txau ceev cov roj hmab asphalt waterproof txheej. Nws lub ntsiab lus tseem ceeb npog thickening, dej tuav, rheology kho thiab ncua kev ruaj khov.
1. Thickening nyhuv
Raws li tsis yog-ionic thickener, hydroxyethyl cellulose tuaj yeem ua rau cov roj hmab sai sai-teeb tsa cov roj hmab asphalt waterproud txheej. Vim tias nws cov yam ntxwv siab viscosity, HEC muaj peev xwm ua kom cov qauv viscosity ntawm cov txheej txheem kom haum thaum lub sijhawm tsim kho. Qhov kev ua haujlwm zoo tshaj plaws rau kev txau, vim tias cov xim uas tsim nyog pab tau cov xim sib xyaw ua ke, yog li ua tiav cov teebmeem dej zoo tshaj plaws.
2. Dej khaws cia
HEC muaj cov dej ua kom zoo, uas yog tshwj xeeb tshaj nyob rau hauv cov dej pleev dej. Nyob rau hauv txau-coated nrawm-teeb tsa cov roj hmab asphalt waterproof txheej ntawm cov dej hauv txheej los ntawm kev ua haujlwm noo noo. Cov yeeb yaj kiab no tsis tsuas yog pab tswj kom lub xeev noo noo ntawm kev tsim kho thiab tiv thaiv kev nkag mus rau lub substrate thiab txhim kho cov nplaum rau lub substrate, yog li kev txhim kho lub Tag nrho cov kev ua tau zoo ntawm cov txheej txheej tsis muaj dej.
3. Rheology hloov kho
Rheology yog hais txog cov kev ntws ntws ntawm cov xim pleev xim raws li kev txiav txim ntawm sab nraud rog. HEC UA HAUJ LWM Raws li kev ua kom haum rau txau ceev tus nqi ntawm cov txheej txheem hluav taws xob asphalt wateral thiab ntau dua ntawm cov neeg viscosity tsawg dua ntawm cov nqi siab. Tsis viscosity. Qhov kev sib tw shear-theb no pab cov xim twj tso kua mis thiab txau rau cov khoom siv tshuaj txau thiab ua kom rov qab ua kom ntshav thiab ua kom pom kev zoo nkauj thiab ua kom sib txawv ntawm cov txheej. Cov.
4. Ncua tseg thiab stabilization nyhuv
Nyob rau hauv txau nrawm-teeb tsa cov roj hmab asphalt waterproof txheej, xws li cov roj hmab cov nplais, fillers, thiab lwm yam. Los ntawm kev tsim lub siab-viscosity qauv network, HEC muaj peev xwm ncua cov khoom me me thiab tiv thaiv lawv los ntawm kev cia thiab tsim kho. Qhov kev ncua kev tshem tawm no yuav pab tswj cov ris tsho sib txawv ntawm cov xim thiab ua kom muaj cov xim txig muaj cov txheej txheem hluav taws xob tsis sib xws tom qab kho cov dej tsis sib thooj thiab txhim kho cov nyhuv waterproofing.
5. Kev txhim kho ntawm kev tsim kho kev ua haujlwm
Ntau lub zog tau txhim kho kev tsim kho cov kev tsim kho ntawm kev txau nrawm-teeb tsa roj hmab asphalt waterproof txheej. Ua ntej tshaj plaws, HEC cov nyhuv tuab thiab rheology kho ua haujlwm Ua kom cov xim muaj cov kev ua haujlwm zoo thaum siv tau zoo, yooj yim rau kev siv thiab tsim cov txheej txheem du. Thib ob, nws cov dej khaws cia yuav pab txhim kho cov nplaum ntawm cov xim rau lub substrate thiab txo cov txheej teeb tsis zoo los ntawm kev tawg. Ib qho ntxiv, qhov kev ncua kev tshem tawm stabilization nyhuv nyhuv ntawm HEC tuaj yeem tswj hwm lub cev cov khoom xyaw sib xyaw ntawm cov kev tsim kho ntawm lub neej ntawm txheej.
Daim ntawv thov ntawm hydroxyethyl cellulose hauv txau nrawm-teeb tsa cov roj hmab asphalt wotment wotings ua lub luag haujlwm tseem ceeb hauv ntau yam. Nws tsis tsuas yog nce cov xim pleev xim rau lub viscosity, tab sis kuj hloov kho cov khoom siv ntawm cov xim, ruaj khov cov khoom siv hauv cov xim, thiab txhim kho kev tsim kho kev ua haujlwm. Cov teebmeem no ua ke kom cov kev ua tau zoo thiab ruaj khov ntawm cov kev siv hluav taws xob tsis muaj nqis hauv kev txau cov roj hmab sai sai. Los ntawm kev xaiv tsim nyog thiab siv HEC, kev ua yeeb yam ntawm cov kua dej waterpoof tuaj yeem txhim kho, yog li muab cov hluav taws xob txhim khu kev qha ntau dua rau kev tsim cov dej.
Lub Sijhawm Post: Jul-08-2024