Txau ceev-teeb tsa roj hmab asphalt waterproof txheej yog ib coating txheej. Yog hais tias tus diaphragm tsis tau khaws cia kom zoo li tom qab tshuaj tsuag, dej yuav tsis yooj yim thaum muaj cua daj cua dub, thiab tsis muaj dej tsis zoo, tshuaj tiv thaiv corrosion, thiab huab cua tsis kam. Cov. Vim tias txoj kev saib xyuas ib puag ncig ntawm lub chaw tsim kho feem ntau yog tswj tsis tau, nws yog qhov tseem ceeb los txau ceev cov roj hmab asphalt waterproud txheej los ntawm qhov kev pom ntawm kev pom.
Dej-soluble cellulose ether tau raug xaiv los txhim kho qhov kub siab tiv thaiv kev txau nrawm-teeb tsa roj hmab asphalt waterping cov ntaub ntawv. Nyob rau tib lub sijhawm, qhov cuam tshuam ntawm hom thiab tus nqi ntawm cellulose ete ntawm cov tshuab hluav taws xob, tshav kub ua haujlwm, tshav kub kev teeb tsa nrawm nrawm tau kawm. Kev cuam tshuam ua tau zoo.
Qauv npaj
Dissolve hydroxyethyl cellulose hauv dej hauv 1/2 deasized dej, tom qab ntawd ntxiv emulsifier mus npaj ib qho kua qaub ua kua, thiab thaum kawg, muab ob txoj kev daws teeb meem yog Tusyees sib xyaw kom tau txais kev daws teeb meem ahotes ntawm hydroxyethyl cellulose, thiab nws tus nqi p p p p p p p p P P P muaj kev tswj hwm thaum 11 thiab 13.
Sib tov emulsified asphalt, neoprotee latx, hydroxyethyl cellulose sepuous kua aqueous kua aqueous, defosamer, thiab lwm yam raws li tau txais cov khoom A.
Npaj ib qho kev xav ntawm CA (NO3) 2 aqueous daws teeb meem xws li b cov khoom siv.
Siv cov khoom txau hluav taws xob tshwj xeeb hluav taws xob kom txau cov khoom thiab cov khoom siv b rau ntawm daim ntawv tso rau tib lub sijhawm tso rau hauv ib zaj yeeb yaj kiab thaum lub teb chaws atomization txheej txheem.
Cov txiaj ntsig thiab kev sib tham
Hydroxyethyl cellulose nrog viscosity ntawm 10 000 Mpa-000 Mpaxeyethyl cellulose ntawm kev txau ua tau zoo ntawm kev nrawm nrawm Roj hmab asphalt waterproof txheej, zaj duab xis tsim cov khoom, cua sov kuj, cov khoom siv tshuab hluav taws xob thiab cov khoom ntim. Txhawm rau kom tsis txhob muaj kev puas tsuaj rau lub kaw lus sib npaug tshwm sim los ntawm kev ntxiv ntawm hydulatorel tau ntxiv thaum lub sij hawm npaj ntawm hydroxyethyl cellulose tov.
Cawv ntawm viscrot ntawm hydroxyethyl cellulose (HEC) ntawm txau thiab ua yeeb yaj kiab-ua yeeb yam ntawm waterproud txheej
Cov viscrotyl ntau dua ntawm hydroxyethyl cellulose (HEC), qhov ntau dua qhov cuam tshuam ntawm cov txau thiab ua yeeb yaj kiab-ua yeeb yam ntawm waterproud txheej. Thaum nws ntxiv tus nqi yog 1 ‰, HEC nrog viscof ntawm cov dej tsis muaj zog ntawm cov dej tsis muaj zog, thiab ua kom lub diaphragm shrinks loj heev, thaum hac nrog viscosity Ntawm 10 000 Mpaidai me me me rau kev txau, thiab cov diaphragm shrinks zoo li qub.
Cov nyhuv ntawm hydroxyethyl cellulose (HEC) ntawm tshav kub tiv thaiv ntawm waterproof txheej
Cov txau ceev-teeb tsa roj hmab asphalt waterproof txheej tau txau ntawm cov dej kub ua qauv, thiab nws tau kho raws li cov dej kub ua piv txwv, raws li cov txheej txheem tshuaj tua hluav taws hauv lub teb chaws tus qauv GB / T 16777- 2008. Lub hydroxyethyl cellulose nrog viscosity ntawm 50 000 mpa · s muaj qhov hnyav molecular hnyav. Ntxiv rau ncua sij hawm ncua dej evaporation, ua rau muaj kev ntxiv dag zog, ua rau nws tsis yooj yim rau cov dej los ntawm cov txheej txheem sab hauv, yog li nws yuav tsim cov khoom loj dua. Qhov hnyav molecular ntawm hydroxyethyl cellulose nrog viscocosity ntawm cov khoom siv thiab tsis muaj kev cuam tshuam ntawm cov dej, yog li tsis muaj npuas ntau dua.
Cov nyhuv ntawm tus nqi ntawm hydroxyethyl cellulose (HEC) ntxiv
Hydroxyethyl cellulose (HEC) nrog Viscosity ntawm kev tshawb fawb los ntawm kev tshawb fawb, thiab kub ua luam ntawm cov txheej txheem dej ua hluav taws xob tau tshawb xyuas. Xav txog kev ua yeeb yam txau, kub ua hauj lwm thiab cov cuab yeej siv tshuab hluav taws xob tau txiav txim siab, nws yog qhov zoo tshaj plaws ntxiv ntawm hydroxyethyl cellulose yog 1 ‰.
Neoprene looj hauv cov txau ceev-teeb tsa roj hmab asphalt muaj qhov sib txawv ntawm cov khoom siv nyob rau lub sijhawm luv luv ntawm lub sijhawm cia. Yog li no, thaum lub sijhawm kev siv kom zoo yuav tsum tau ua kom tusyees ua kom zoo ua ntej nws tuaj yeem txau, txwv tsis pub nws yuav ua rau muaj kev sib kis tau zoo. Hydroxyethyl cellulose tuaj yeem daws cov teeb meem delamination ntawm cov tshuaj tsuag kev nrawm nrawm-teeb tsa roj hmab asphalt waterproof txheej. Tom qab ib hlis ntawm kev cia, muaj tseem tsis muaj kev txiav txim siab. Lub kaw lus ntawm lub kaw lus tsis hloov pauv ntau, thiab kev ruaj khov yog qhov zoo.
tsom
1) Tom qab hydroxyethyl cellulose tau ntxiv rau cov txau ceev cov roj av asating, thiab qhov teeb meem ntawm cov npuas ntom ntom ntom ntom nti, thiab qhov teeb meem ntawm cov npuas ntom ntom nti ntawm cov txheej ntawm txheej yog txhim kho.
2) Raws li kev ua yeeb yam ntawm tsis cuam tshuam cov txheej txheem txau, zaj duab xis ua kev sib tw ua yeeb yam thiab cov khoom siv tshuab hluav taws xob tau txiav txim siab ua viscosity ntawm 10 000 Mpaipos thiab tus lej ntxiv yog 1 ‰.
3) Ntxiv ntawm hydroxyethyl cellulose txhim kho kev cia ruaj khov ntawm cov txau ceev-teeb tsa cov roj hmab asphalt waterproud txheej, thiab tsis muaj kev cuam tshuam rau tom qab cia rau ib hlis.
Lub Sijhawm Post: Lub Tsib Hlis-29-2023