Hydroxyethyl cellulose (HEC) yog ib qho tseem ceeb multifunctional additive uas plays lub luag haujlwm tseem ceeb hauv kev txau cov roj hmab asphalt waterproof txheej. Nws lub luag haujlwm tseem ceeb npog cov thickening, dej tuav, kho rheology thiab ncua kev ruaj ntseg.
1. Thickening nyhuv
Raws li ib tug non-ionic thickener, hydroxyethyl cellulose tuaj yeem ua rau kom cov viscosity ntawm cov tshuaj tsuag sai-setting roj hmab asphalt waterproof txheej. Vim nws cov yam ntxwv siab viscosity tshwj xeeb, HEC tuaj yeem txhim kho cov txheej txheem viscosity ntawm cov txheej txheem kom nws muaj peev xwm tswj tau qhov tsim nyog sib xws thaum lub sijhawm tsim kho. Qhov kev ua haujlwm no yog qhov tseem ceeb tshwj xeeb rau kev siv tshuaj tsuag, vim tias qhov tsim nyog viscosity pab cov xim kom sib npaug, txo qis qis, thiab xyuas kom meej qhov sib xws ntawm txheej txheej, yog li ua tiav cov dej tsis zoo.
2. Cov nyhuv tuav dej
HEC muaj kev tuav dej zoo heev, uas yog qhov tseem ceeb tshwj xeeb hauv cov txheej txheem dej. Nyob rau hauv cov tshuaj tsuag-coated ceev-teeb roj hmab asphalt waterproof txheej, HEC tuaj yeem ua kom qeeb ntawm cov dej hauv txheej los ntawm kev khaws cov dej noo. Cov yam ntxwv no tsis tsuas yog pab tswj lub xeev noo ntawm txheej thaum tsim kho thiab tiv thaiv cov txheej txheem los ntawm kev ziab tawm vim dej sai sai, tab sis kuj txhawb kev nkag mus ntawm txheej txheej ntawm lub substrate thiab txhim kho qhov adhesion rau lub substrate, yog li txhim kho cov txheej txheem. Zuag qhia tag nrho kev ua tau zoo ntawm txheej waterproofing.
3. Rheology hloov kho
Rheology hais txog cov yam ntxwv ntws ntawm cov xim nyob rau hauv qhov kev txiav txim ntawm sab nraud quab yuam. HEC ua raws li kev hloov kho rheology hauv kev txau sai-teeb roj hmab asphalt waterproof txheej, uas tuaj yeem kho tus cwj pwm rheological ntawm txheej kom nws nthuav tawm ntau dua viscosity ntawm qis shear tus nqi thiab siab dua viscosity ntawm siab shear tus nqi. Tsawg viscosity. Qhov no shear-thinning rheological cwj pwm pab cov xim twj tso kua mis thiab tshuaj tsuag nyob rau hauv cov tshuaj tsuag thiab sai sai rov qab mus rau ib tug ntau dua viscosity tom qab thov, yog li txo cov xim los ntshav thiab xyuas kom meej smoothness thiab uniformity ntawm txheej. .
4. Kev ncua thiab ruaj khov nyhuv
Hauv kev txau cov roj hmab asphalt waterproof coatings, ntau yam khoom, xws li roj hmab hais, muab tub lim, thiab lwm yam., tej zaum yuav nyob hauv cov txheej vim qhov sib txawv ntawm qhov sib txawv. Los ntawm kev tsim cov txheej txheem siab-viscosity network, HEC tuaj yeem tshem tawm cov khoom siv no zoo thiab tiv thaiv lawv los ntawm kev daws teeb meem thaum khaws cia thiab tsim kho. Qhov kev ncua kev ruaj ntseg no pab tswj qhov sib xws ntawm cov xim thiab ua kom ntseeg tau tias cov xim pleev xim muaj qhov sib xws, yog li tsim cov txheej txheem dej tsis sib xws tom qab kho thiab txhim kho cov nyhuv waterproofing.
5. Kev txhim kho kev tsim kho kev ua haujlwm
Kev ua haujlwm ntau yam ntawm HEC tuaj yeem txhim kho kev tsim kho kev ua tau zoo ntawm kev txau cov roj hmab asphalt waterproof txheej. Ua ntej tshaj plaws, HEC cov nyhuv thickening thiab rheology hloov ua haujlwm ua rau cov xim muaj kev ua haujlwm zoo thaum siv tshuaj tsuag, yooj yim rau kev thov thiab tsim cov txheej txheem du. Qhov thib ob, nws cov dej tuav tau pab txhim kho qhov adhesion ntawm cov xim rau lub substrate thiab txo cov txheej txheem los ntawm kev tawg qhuav. Tsis tas li ntawd, cov nyhuv stabilization ntawm HEC tuaj yeem tswj tau qhov sib xws ntawm cov khoom xyaw txheej, yog li ua kom lub cev ruaj khov ntawm cov txheej tom qab kev tsim kho thiab txuas ntxiv lub neej kev pab cuam ntawm txheej.
Daim ntawv thov ntawm hydroxyethyl cellulose nyob rau hauv txau sai-teeb roj hmab asphalt waterproof coatings plays lub luag hauj lwm tseem ceeb nyob rau hauv ntau yam. Nws tsis tsuas yog ua kom cov viscosity ntawm cov xim thiab txhim kho cov dej tuav, tab sis kuj kho cov khoom rheological ntawm cov xim, stabilizes cov khoom hauv cov xim, thiab txhim kho kev tsim kho. Cov teebmeem no ua ke ua kom muaj kev ua tau zoo thiab ua haujlwm ntev ntawm cov txheej txheem hauv cov ntawv thov, ua hydroxyethyl cellulose yog ib qho tseem ceeb ntxiv rau hauv kev txau cov roj hmab asphalt waterproof txheej. Los ntawm kev xaiv tsim nyog thiab siv HEC, kev ua tau zoo ntawm cov txheej txheem dej tsis zoo tuaj yeem txhim kho tau zoo, yog li muab cov kev daws teeb meem txhim khu kev qha rau lub tsev waterproofing.
Lub sij hawm xa tuaj: Plaub Hlis-08-2024