Latex hmoov-Txhim kho qhov sib xws thiab slipperiness ntawm lub kaw lus nyob rau hauv lub ntub mixing xeev. Vim yog cov yam ntxwv ntawm cov khoom siv polymer, kev sib koom ua ke ntawm cov khoom sib xyaw ntub dej tau zoo heev, uas ua rau muaj txiaj ntsig zoo rau kev ua haujlwm; Tom qab ziab, nws muab adhesion rau lub du thiab ntom txheej txheej. Relay, txhim kho cov nyhuv cuam tshuam ntawm cov xuab zeb, gravel, thiab pores. Nyob rau hauv lub premise ntawm kom ntseeg tau tus nqi ntawm ntxiv, nws yuav enriched rau hauv ib zaj duab xis ntawm lub interface, kom cov pobzeb nplaum muaj ib tug tej yam yooj, txo cov elastic modulus, thiab absorbs thermal deformation kev nyuaj siab mus rau ib tug loj npaum li cas. Nyob rau hauv cov ntaub ntawv ntawm dej immersion nyob rau hauv lub tom ntej theem, yuav muaj kev ntxhov siab xws li dej tsis kam, tsis kub, thiab inconsistent cov ntaub ntawv deformation (cov pobzeb deformation coefficient 6 × 10-6 / ℃, cement qhob deformation coefficient 10 × 10-6 / ℃), thiab txhim kho huab cua tsis kam. Hydroxypropyl Methyl Cellulose HPMC-Muab dej kom zoo thiab ua haujlwm tau zoo rau cov tshuaj khib nyiab tshiab, tshwj xeeb tshaj yog rau thaj chaw ntub dej. Txhawm rau kom ntseeg tau qhov kev vam meej ntawm cov tshuaj tiv thaiv hydration, nws tuaj yeem tiv thaiv cov substrate los ntawm kev nqus dej ntau dhau thiab txheej txheej saum npoo ntawm evaporating. Vim tias nws cov khoom siv huab cua nkag (1900g / L —-1400g / LPO400 xuab zeb 600HPMC2), qhov ntom ntom ntawm cov nplais nplaum yog txo, txuag cov ntaub ntawv thiab txo cov elastic modulus ntawm cov tshuaj khib nyiab.
Pobzeb adhesive redispersible latex hmoov yog xim ntsuab, ib puag ncig tus phooj ywg, lub tsev txuag hluav taws xob, zoo siab ntau lub hom phiaj hmoov cov khoom siv, thiab yog ib qho tseem ceeb thiab tseem ceeb ua haujlwm ntxiv rau cov tshuaj khib nyiab qhuav. Nws tuaj yeem txhim kho kev ua haujlwm ntawm mortar, nce lub zog ntawm mortar, nce lub zog ntawm cov tshuaj khib thiab ntau yam substrates, txhim kho qhov yooj thiab ua haujlwm, compressive zog, flexural zog, hnav tsis kam, toughness, thiab viscosity ntawm mortar. Relay thiab dej tuav peev xwm, constructability. Kev ua tau zoo ntawm cov pobzeb nplaum redispersible latex hmoov yog qhov muaj zog, thiab cov pobzeb nplaum redispersible latex hmoov muaj peev xwm sib txuas thiab cov khoom tshwj xeeb. Yog li ntawd, lawv cov kev siv ntau yam yog qhov dav heev. Lub luag hauj lwm ntawm hydroxypropyl methylcellulose plays lub luag hauj lwm ntawm dej tuav, thickening thiab kev tsim kho kev ua tau zoo nyob rau hauv thaum ntxov theem, thiab redispersible latex hmoov ntawm pobzeb nplaum plays lub luag hauj lwm ntawm lub zog nyob rau hauv lub tom ntej theem, uas plays lub luag hauj lwm zoo heev nyob rau hauv lub firmness, acid thiab alkali tsis kam ntawm qhov project. Cov nyhuv ntawm cov pobzeb nplaum redispersible latex hmoov ntawm cov mortar tshiab: ncua sij hawm ua hauj lwm thiab kho lub sij hawm los txhim kho cov dej tuav kev ua tau zoo, thiaj li ua kom cov hydration ntawm cov cement thiab txhim kho cov sag kuj (tshwj xeeb hloov cov hmoov roj hmab) thiab txhim kho kev ua hauj lwm (yooj yim siv Substrate yog sab saum toj kev tsim kho, yooj yim rau nias cov vuas rau hauv lub luag hauj lwm ntawm adhesive adhesive) substrates, xws li pob zeb, plaster, ntoo, vuas qub, PVC txawm nyob rau hauv ntau yam kev nyab xeeb, muaj peev xwm deformation zoo.
Qhov sib ntxiv ntawm redispersible latex hmoov rau pobzeb adhesives muaj qhov pom tseeb heev ntawm kev txhim kho kev ua haujlwm ntawm cov cement-raws li pobzeb adhesives, thiab muaj kev cuam tshuam tseem ceeb ntawm kev sib txuas lub zog, dej tsis kam, thiab kev laus ntawm cov nplaum. Tam sim no, muaj ntau hom redispersible latex hmoov rau pobzeb adhesives nyob rau hauv lub lag luam, xws li acrylic redispersible latex hmoov, styrene-acrylic hmoov, yas acetate-ethylene copolymer, thiab lwm yam copolymers.
(1) Raws li tus nqi ntawm cov cement nce, lub zog qub ntawm redispersible latex hmoov rau cov nplais nplaum ntxiv, thiab tib lub sijhawm, lub zog tensile nplaum tom qab immersion hauv dej thiab tensile nplaum lub zog tom qab tshav kub laus kuj nce.
(2) Nrog rau qhov nce ntawm cov nyiaj redispersible latex hmoov rau pobzeb nplaum, tensile daim ntawv cog lus lub zog ntawm redispersible latex hmoov rau cov pobzeb nplaum tom qab immersion nyob rau hauv dej thiab lub tensile daim ntawv cog lus lub zog tom qab tshav kub aging nce raws li, tab sis lub thermal aging tom qab ntawd, lub tensile daim ntawv cog lus lub zog nce ho.
Vim nws cov khoom zoo nkauj thiab kev ua haujlwm zoo xws li kev ua haujlwm ntev, dej tsis kam thiab kev tu yooj yim, cov vuas luaj ceramic yog dav siv: nrog rau cov phab ntsa, pem teb, qab nthab thiab cov pas dej da dej, thiab lwm yam, thiab tuaj yeem siv sab hauv tsev thiab sab nraum zoov. Cov txheej txheem pasting ntawm cov vuas yog cov txheej txheem tuab-txheej txheej, uas yog, ua ntej siv cov mortar zoo tib yam rau tom qab ntawm cov vuas, thiab tom qab ntawd nias cov vuas rau hauv qab txheej. Lub thickness ntawm mortar txheej yog li ntawm 10 mus rau 30mm. Txawm hais tias txoj kev no yog qhov tsim nyog rau kev tsim kho ntawm cov hauv paus tsis sib xws, qhov tsis zoo yog qhov ua tau zoo ntawm cov vuas vuas, cov kev xav tau siab rau cov neeg ua haujlwm kev txawj ntse, muaj kev pheej hmoo ntawm kev poob vim qhov tsis zoo ntawm cov mortar, thiab nyuaj rau kev kho cov mortar ntawm qhov chaw tsim kho. Kev ua tau zoo yog tswj hwm nruj. Txoj kev no tsuas yog tsim rau cov vuas nrog cov dej nqus dej siab. Ua ntej pasting cov vuas, cov vuas yuav tsum tau tsau rau hauv dej kom ua tiav cov khoom sib txuas txaus.
Tam sim no, tiling txoj kev dav siv nyob rau hauv cov teb chaws Europe yog lub thiaj li hu ua nyias-txheej sticking txoj kev, uas yog, lub polymer-hloov pobzeb nplaum nplaum batch yog scraped rau saum npoo ntawm lub hauv paus txheej yuav tsum tau vuas ua ntej nrog ib tug toothed spatula los tsim tsa kab txaij. Thiab lub mortar txheej ntawm uniform thickness, ces nias cov vuas rau nws thiab twist me ntsis, lub thickness ntawm lub mortar txheej yog hais txog 2 mus rau 4 hli. Vim yog kev hloov kho ntawm cellulose ether thiab redispersible latex hmoov, kev siv cov pobzeb nplaum nplaum no muaj kev sib raug zoo rau ntau hom txheej txheej thiab txheej txheej nrog rau cov vuas vitrified uas tsis tshua muaj dej nqus, thiab muaj qhov ua tau zoo, kom nqus tau cov kev ntxhov siab los ntawm yam xws li kub sib txawv, thiab zoo heev qhib sag rau lub sij hawm ua hauj lwm, muaj peev xwm ua tau ntev txaus rau kev tsim kho. yooj yim rau kev khiav lag luam thiab tsis tas yuav ntub cov vuas hauv dej. Txoj kev tsim kho no yooj yim rau kev khiav lag luam thiab yooj yim rau kev ua haujlwm ntawm kev tsim kho kom zoo.
Post lub sij hawm: Dec-12-2022