ua ntej. Ua ntej nkag siab txog qhov yog dab tsihmoov polymer uas yaj tau dua tshiab.
Cov hmoov polymer dispersible yog cov hmoov polymers uas tsim los ntawm cov polymer emulsions los ntawm cov txheej txheem kom qhuav tshuaj tsuag (thiab xaiv cov khoom ntxiv tsim nyog). Cov hmoov polymer qhuav hloov mus ua emulsion thaum nws ntsib dej, thiab tuaj yeem qhuav dua thaum lub sijhawm coagulation thiab hardening ntawm cov mortar, yog li cov polymer particles tsim cov qauv polymer lub cev hauv cov mortar, uas zoo ib yam li cov txheej txheem ua haujlwm ntawm cov polymer emulsion, uas tuaj yeem txhim kho cov cement mortar. Cov nyhuv kev sib deev. Emulsion qhuav hmoov hloov mortar hu ua qhuav hmoov mortar (tseem hu ua qhuav sib xyaw mortar, qhuav sib xyaw mortar). Txij li thaum cov hmoov qhuav tsis tas yuav xav txog emulsion formulation thiab kev ruaj khov zoo li polymer emulsions, me ntsis ntawm admixture tuaj yeem ua rau cov mortar ua tiav cov khoom xav tau, thiab nws muaj qhov zoo ntawm kev ntim khoom yooj yim dua, khaws cia, thauj mus los thiab muab khoom dua li emulsions, antifreeze thiab tsis muaj pwm loj hlob, Qhov teeb meem ntawm cov kab mob nyob, thiab qhov zoo uas nws tuaj yeem ua rau hauv ib qho khoom nrog cov khoom ntim khoom sib xyaw xws li cement thiab xuab zeb, thiab tuaj yeem siv tom qab ntxiv dej.
Thaum siv, sib tov thiab ntim xuab zeb, cement, emulsion hmoov qhuav thiab lwm yam khoom siv ntxiv ua ntej, thiab tsuas yog yuav tsum ntxiv qee qhov dej thaum lub sijhawm tsim kho kom ua rau cov hmoov qhuav mortar nrog kev ua tau zoo dua. Lub hauv paus ntawm kev tsim cov hmoov emulsion qhuav yog tias cov khoom polymer tom qab rov tawg ntawm cov hmoov latex qhia qhov loj me lossis qhov loj me ntawm cov khoom sib xyaw zoo ib yam li cov khoom emulsion polymer thawj. Ib qho nyiaj ntawm cov colloid tiv thaiv xws li polyvinyl cawv yuav tsum tau ntxiv rau hauv cov emulsion, yog li cov hmoov latex tuaj yeem rov tawg mus rau hauv cov emulsion thaum nws sib cuag nrog dej. Tsuas yog nrog kev sib kis zoo tuaj yeem ua tiav qhov zoo tshaj plaws. . Cov hmoov polymer dispersible feem ntau yog hmoov dawb. Nws cov khoom xyaw suav nrog:
Cov tshuaj polymer: Nws nyob hauv lub plawv ntawm cov hmoov roj hmab, thiab nws tseem yog cov khoom tseem ceeb ntawm cov hmoov polymer uas tau tawg dua tshiab.
Cov khoom ntxiv (sab hauv): ua ke nrog cov resin, nws ua lub luag haujlwm hloov kho cov resin. Cov khoom ntxiv (sab nraud): Cov ntaub ntawv ntxiv raug ntxiv los nthuav dav ntxiv kev ua tau zoo ntawm cov hmoov polymer dispersible.
Kev tiv thaiv colloid: ib txheej ntawm cov khoom siv hydrophilic qhwv rau ntawm qhov chaw ntawm cov hmoov latex redispersible, cov colloid tiv thaiv ntawm feem ntau cov hmoov latex redispersible yog polyvinyl cawv.
Tus neeg sawv cev tiv thaiv kev sib xyaw: cov khoom siv ua kom zoo nkauj, feem ntau yog siv los tiv thaiv cov hmoov roj hmab kom tsis txhob sib xyaw thaum khaws cia thiab thauj mus los thiab los pab txhawb kev ntws ntawm cov hmoov roj hmab (pov tseg los ntawm cov hnab ntawv lossis cov tankers.)
Yuav ua li cas thiaj paub qhov zoo ntawm cov hmoov latex uas tawg tau dua tshiab?
Txoj Kev 1, txoj kev tshauv
Siv ib qho hmoov latex uas yaj tau dua, muab tso rau hauv lub thawv hlau tom qab ntsuas qhov hnyav, ua kom sov txog li 500 degrees, tom qab sintering ntawm qhov kub siab ntawm 500 degrees, txias rau qhov kub hauv chav, thiab ntsuas dua. Lub cev nyhav sib dua thiab zoo.
Txoj kev thib ob, txoj kev yaj
Siv ib qho hmoov latex uas yaj tau dua thiab yaj rau hauv 5 npaug ntawm cov dej, do kom zoo thiab cia nws sawv rau 5 feeb ua ntej saib. Feem ntau, cov khoom uas yaj tau hauv qab tsawg dua, cov hmoov polymer uas yaj tau dua yuav zoo dua. Txoj kev no yooj yim ua.
Txoj kev thib peb, txoj kev tsim zaj duab xis
Siv ib hom hmoov latex uas yaj tau dua, yaj rau hauv dej 2 npaug, do kom sib npaug, cia nws sawv rau 2 feeb, do dua, nchuav cov tshuaj rau ntawm lub khob iav tiaj tiaj, thiab muab lub khob iav tso rau hauv qhov chaw uas muaj cua nkag. Tshem tawm thaum qhuav tag. Saib daim zaj duab xis polymer uas tau tshem tawm. Muaj pob tshab thiab zoo. Tom qab ntawd rub nruab nrab, nrog kev ywj pheej zoo thiab zoo. Tom qab ntawd daim zaj duab xis raug txiav ua tej daim, muab tso rau hauv dej, thiab saib tom qab 1 hnub, qhov zoo ntawm daim zaj duab xis tsis yaj hauv dej ntau. Txoj kev no yog qhov ncaj ncees dua.
Lub sijhawm tshaj tawm: Lub Kaum Hli-27-2022