n qhov tseeb ib puag ncig ntawm kev ua lag luam, ntau hom latex hmoov tuaj yeem piav qhia raws li dazzling. Yog li ntawd, yog tias tus neeg siv tsis muaj nws tus kheej cov kws tshaj lij cov kws tshaj lij lossis cov cuab yeej ntsuas, nws tsuas tuaj yeem dag los ntawm ntau tus neeg ua lag luam uas tsis paub tseeb hauv kev ua lag luam. Tam sim no, muaj qee qhov hu ua kev tshawb nrhiav tau nthuav tawm hauv Is Taws Nem, xws li: soj ntsuam qhov turbidity ntawm cov tshuaj yaj thiab cov yeeb yaj kiab-tsim lub xeev. Cov txheej txheem no tsuas yog kev paub los ntawm qhov chaw, thiab tsis tuaj yeem muab kev txhawb nqa kev tshawb fawb rau tus neeg siv qhov kev txiav txim zaum kawg ntawm seb cov khoom puas haum rau nws. Yog li ntawd, nyob rau hauv tsab xov xwm no, peb yuav systematically nrov qee cov ntsiab lus ntawm cov roj hmab hmoov dawb los ntawm cov yam ntxwv ntawm cov khoom siv raw yooj yim tshaj plaws, cov yam ntxwv, thiab lub hom phiaj ntawm kev siv cov hmoov roj hmab, kom cov npoj yaig tuaj yeem txiav txim rau lawv tus kheej qhov zoo thiab qhov zoo. ua txhaum.
Ua ntej, ib lub tswv yim yooj yim kom nkag siab yuav ua li cas qhov tseeb dispersible polymer hmoov yog tsim. (Redispersible latex hmoov yog cov hmoov polymer nrog cov khoom siv rov ua dua tshiab uas tau hloov kho los ntawm cov khoom siv hluavtaws emulsion los ntawm kev ntxiv lwm yam tshuaj thiab tshuaj tsuag-qhuav. Thaum dej siv los ua qhov nruab nrab dispersion, nws tuaj yeem tsim ib qho emulsion thiab muaj redispersible polymer hmoov. Redispersible Cov hmoov latex feem ntau yog cov hmoov dawb, tab sis ob peb cov xim liab yuav tsum muaj lwm yam xim , .) tiv thaiv colloid, anti-caking agent. 1. Polymer resin nyob rau hauv cov tub ntxhais ntawm latex hmoov particles, thiab tseem yog lub ntsiab ntawm redispersible latex hmoov, xws li polyvinyl acetate / vinyl resin, thiab lwm yam. Txhawm rau kom muaj kev ruaj ntseg ntawm cov khoom lag luam zoo, cov chaw tsim khoom loj ib txwm siv lub npe ntawm polyvinyl acetate los tsim cov khoom siv hluav taws xob rov ua dua tshiab. Ntawm no peb tuaj yeem ua piv txwv. Nyob rau hauv 2015, ib tug paub zoo nyob rau hauv domestic roj hmab hmoov hloov cov pheej yig polyvinyl acetate emulsion los tsim redispersible polymer hmoov vim yog kev tswj xyuas. Raws li qhov tshwm sim, qhov kev hloov pauv loj loj tau tshwm sim. ua rau kev puas tsuaj irreparable. Txawm tias qee cov tub lag luam uas tsis paub cai ntawm no yuav siv cov latex dawb thiab zoo li tsis muaj plua plav.
2. Additives (sab hauv) ua hauj lwm ua ke nrog cov resin los hloov cov resin, piv txwv li, ib tug plasticizer uas txo cov zaj duab xis-forming kub ntawm resin (feem ntau vinyl acetate / ethylene copolymer resins tsis tas yuav ntxiv plasticizers), tsis yog txhua txhua latex hmoov muaj additives. Lub redispersible latex hmoov ntawm ntau lub tuam txhab me me tsuas yog muaj cov yeeb yaj kiab ua qhov ntsuas kub thiab tsis tuaj yeem hu ua iav hloov kub, uas kuj yog qhov tseem ceeb ntawm qhov zoo ntawm cov roj hmab hmoov nws tus kheej.
3. Protective colloid Ib txheej ntawm cov khoom siv hydrophilic qhwv rau saum npoo ntawm cov khoom siv rov ua dua tshiab latex hmoov, thiab lub cev tiv thaiv ntawm feem ntau redispersible latex hmoov yog polyvinyl cawv. Lub polyvinyl cawv ntawm no yog koom nrog hauv cov txheej txheem tshuaj tsuag kom qhuav ua ke, tsis yog tsuas yog sib xyaw. Nov yog lwm qhov teeb meem tshwm sim hauv khw. Ntau lub rooj cob qhia me me uas lees tias yuav ua cov hmoov roj hmab tsuas yog ua cov txheej txheem sib xyaw ua ke. txheej txheem, cov khoom no tsis tuaj yeem nruj me ntsis hu ua dispersible polymer hmoov.
4. Cov khoom siv ntxiv (sab nraud) Cov khoom siv ntxiv los nthuav tawm qhov kev ua tau zoo ntawm cov hmoov latex redispersible, xws li ntxiv cov superplasticizers rau qee cov kua roj latex. Zoo li cov additives sab hauv, tsis yog txhua hom redispersible polymer hmoov yog siv. Latex hmoov tag nrho muaj cov tshuaj ntxiv no.
5. Anti-caking agent Fine mineral muab tub lim, feem ntau yog siv los tiv thaiv latex hmoov los ntawm agglomeration thaum lub sij hawm cia thiab tsheb thauj mus los thiab los pab txhawb cov ndlwg ntawm latex hmoov (tso tseg los ntawm cov hnab ntawv los yog tankers). Qhov muab tub lim no kuj yog ib feem uas yuav cuam tshuam rau cov nqi tsim khoom tiag tiag thiab kev ua tau zoo ntawm cov hmoov polymer dispersible. Ntau cov roj hmab uas tsis tshua muaj nqi ntawm cov khoom lag luam nce qhov sib piv kom txo tau cov nqi. Cias muab, nws yog qhov qhia txog cov ntsiab lus tshauv uas feem ntau raug xa mus rau. Cov khoom sib txawv ntxiv los ntawm cov tuam txhab sib txawv kuj tseem yuav cuam tshuam rau kev sib xyaw ntawm cov hmoov roj hmab thiab cov cement. Vim hais tias kev sib txuas ntawm inorganic adhesives rau cov ntaub ntawv yog tiav los ntawm lub hauv paus ntsiab lus ntawm mechanical embedding
Post lub sij hawm: Apr-26-2024