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 khoom 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 mortar 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 cov 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 tshuaj khib nyiab tshiab: ncua lub sijhawm ua haujlwm thiab kho lub sijhawm los txhim kho cov dej tuav kev ua haujlwm, thiaj li ua kom lub hydration ntawm cov cement thiab txhim kho cov sag kuj (tshwj xeeb hloov cov roj hmab hmoov) thiab txhim kho lub kev ua haujlwm tau yooj yim (yooj yim siv Substrate yog kev tsim kho sab saum toj, yooj yim rau nias cov vuas rau hauv cov nplaum) lub luag haujlwm ntawm cov tshuaj khib nyiab tau zoo adhesion rau ntau yam 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 kev ua lag luam, xws li acrylic redispersible latex hmoov, styrene-acrylic hmoov, yas acetate-ethylene copolymer, thiab lwm yam Feem ntau redispersible latex hmoov yog vinyl acetate-ethylene 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 nplais nplaum tom qab raus hauv dej thiab lub zog tensile zog tom qab tshav kub laus 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 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 batch yog scraped rau saum npoo ntawm lub hauv paus txheej yuav tsum tau tiled ua ntej nrog ib tug toothed spatula. daim ntawv 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 no muaj kev sib txuas zoo rau ntau hom txheej txheej thiab txheej txheej nrog rau cov vuas vitrified uas tsis tshua muaj dej nqus, thiab muaj kev yooj yim, thiaj li nqus tau. qhov kev ntxhov siab los ntawm yam xws li qhov sib txawv ntawm qhov kub thiab txias, thiab zoo heev sag kuj, ntev txaus qhib lub sij hawm rau nyias-txheej txheej, uas muaj peev xwm ua tau zoo heev rau kev tsim kho ceev, 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