1. Putty yog siv los ua cov khoom siv rau pretreatment ntawm qhov chaw kom coated nyob rau hauv architectural coatings
Putty yog ib txheej nyias ntawm leveling mortar. Putty yog scraped rau saum npoo ntawm ntxhib substrates (xws li pob zeb, leveling mortar, gypsum board, thiab lwm yam) Ua rau sab nrauv phab ntsa xim txheej du thiab muag heev, tsis yooj yim rau cov plua plav thiab yooj yim los ntxuav (qhov no yog qhov tseem ceeb tshaj rau cov cheeb tsam nrog. huab cua phem dua). Putty tuaj yeem muab faib ua ib qho putty (paste putty paste thiab qhuav hmoov putty hmoov) thiab ob-tivthaiv putty (sau ntawm putty hmoov thiab emulsion) raws li cov khoom tiav. Nrog tib neeg kev mloog rau kev tsim kho tshuab ntawm architectural coatings, putty ua ib qho tseem ceeb txhawb cov khoom kuj tau tsim raws li. Ntau lub tuam txhab tsim khoom lag luam tau tsim ua tiav cov txheej txheem sib txawv thiab ntau yam ntaub ntawv, xws li hmoov putty, paste putty, sab hauv phab ntsa putty, sab nrauv phab ntsa putty, elastic putty, thiab lwm yam.
Judging los ntawm qhov tseeb daim ntawv thov ntawm domestic architectural coatings, muaj feem ntau tsis zoo xws li foaming thiab tev, uas cuam tshuam rau kev tiv thaiv thiab kho kom zoo nkauj kev ua tau zoo ntawm coatings ntawm lub tsev. Muaj ob lub laj thawj tseem ceeb rau kev puas tsuaj ntawm cov zaj duab xis txheej:
Ib qho yog qhov zoo ntawm cov xim;
Qhov thib ob yog kev tuav tsis raug ntawm lub substrate.
Kev xyaum tau pom tias ntau dua 70% ntawm cov txheej txheem ua tsis tiav yog cuam tshuam nrog kev tuav cov substrate tsis zoo. Putty rau architectural coatings tau dav siv los ua raw khoom rau saum npoo pretreatment yuav tsum tau coated. Nws tuaj yeem tsis tsuas yog du thiab kho qhov saum npoo ntawm lub tsev, tab sis kuj zoo siab putty tuaj yeem txhim kho kev tiv thaiv thiab kho kom zoo nkauj ntawm cov txheej txheem ntawm cov tsev. Extending lub neej kev pab cuam ntawm txheej txheej yog ib qho tseem ceeb ntawm cov khoom txhawb nqa rau kev ua haujlwm siab architectural coatings, tshwj xeeb tshaj yog sab nrauv phab ntsa. Cov hmoov qhuav qhuav ib leeg muaj qhov pom tseeb ntawm kev lag luam, kev lag luam thiab ib puag ncig zoo hauv kev tsim khoom, kev thauj mus los, kev cia khoom, kev tsim kho thiab lwm yam.
Lus Cim: Vim yog cov khoom siv raw thiab cov nqi, cov hmoov polymer dispersible feem ntau yog siv los tiv thaiv kev tawg putty hmoov rau sab nrauv phab ntsa, thiab kuj siv hauv qib siab sab hauv phab ntsa polishing putty.
2. Lub luag hauj lwm ntawm anti-cracking putty rau sab nrauv phab ntsa
Sab nrauv phab ntsa putty feem ntau siv cov cement ua cov khoom siv sib txuas, thiab cov hmoov tshauv calcium ntxiv me me tuaj yeem ua tiav cov txiaj ntsig zoo. Lub luag haujlwm ntawm cement-based anti-cracking putty rau sab nrauv phab ntsa:
Cov txheej txheej txheej putty muab lub hauv paus zoo, uas txo cov xim thiab txo qhov project nqi;
Putty muaj zog adhesion thiab tuaj yeem txuas tau zoo rau lub hauv paus phab ntsa;
Nws muaj qee qhov toughness, tuaj yeem cuam tshuam cov txiaj ntsig ntawm qhov sib txawv ntawm kev nthuav dav thiab kev sib cog lus ntawm cov txheej txheem sib txawv, thiab muaj kev sib tsoo zoo;
Putty muaj huab cua tsis zoo, impermeability, noo noo tsis kam thiab lub sijhawm ua haujlwm ntev;
Ib puag ncig tus phooj ywg, tsis muaj tshuaj lom thiab nyab xeeb;
Tom qab kev hloov kho cov khoom siv ntxiv, xws li cov roj hmab putty hmoov thiab lwm yam ntaub ntawv, cov phab ntsa sab nrauv tuaj yeem muaj cov txiaj ntsig zoo hauv qab no:
Kev ua haujlwm ntawm kev khawb ncaj qha rau ntawm qhov qub tiav (xim, pobzeb, mosaic, pob zeb thiab lwm cov phab ntsa du);
Zoo thixotropy, ze li qhov zoo tshaj plaws du nto tuaj yeem tau los ntawm tsuas yog smearing, thiab qhov poob los ntawm kev siv ntau txheej vim qhov tsis sib xws ntawm lub hauv paus yog txo;
Nws yog elastic, tuaj yeem tiv thaiv micro-kawg, thiab tuaj yeem cuam tshuam qhov kev puas tsuaj ntawm qhov kub thiab txias;
Kev tiv thaiv dej zoo thiab ua haujlwm tsis zoo.
3. Lub luag hauj lwm ntawm redispersible latex hmoov nyob rau hauv sab nrauv phab ntsa putty hmoov
(1) Cov nyhuv ntawm putty roj hmab hmoov ntawm cov khoom sib xyaw tshiab:
Txhim kho kev ua haujlwm thiab txhim kho putty batch scraping kev ua tau zoo;
kev tuav dej ntxiv;
nce kev ua haujlwm;
Tsis txhob tawg thaum ntxov.
(2) Cov nyhuv ntawm putty roj hmab hmoov ntawm hardened putty:
Txo cov elastic modulus ntawm putty thiab txhim khu kev txuam rau hauv paus txheej;
Txhim kho cov qauv micro-pore ntawm cov cement, ua kom yooj yim dua tom qab ntxiv cov hmoov roj hmab putty, thiab tiv thaiv kev tawg;
Txhim kho hmoov tsis kam;
Hydrophobic los yog txo cov dej nqus ntawm cov txheej putty;
Ua kom cov adhesion ntawm putty rau lub hauv paus phab ntsa.
Plaub, qhov yuav tsum tau ua ntawm cov txheej txheem sab nrauv ntawm phab ntsa putty
Putty kev tsim kho txheej txheem yuav tsum xyuam xim rau:
1. Kev cuam tshuam ntawm kev tsim kho:
Kev cuam tshuam ntawm kev tsim kho yog feem ntau qhov kub thiab av noo ntawm ib puag ncig. Nyob rau hauv cov huab cua kub, lub hauv paus txheej yuav tsum tau zoo sprayed nrog dej, los yog cia ntub dej, nyob ntawm seb qhov kev ua tau zoo ntawm cov khoom tshwj xeeb putty hmoov. Txij li cov phab ntsa sab nrauv putty hmoov tsuas yog siv cov cement raws li cov khoom siv cementitious, qhov kub thiab txias yuav tsum tsis txhob qis dua 5 degrees, thiab nws yuav tsis khov ua ntej hardening tom qab kev tsim kho.
2. Kev npaj thiab ceev faj ua ntej scraping putty:
Nws yuav tsum tau ua kom tiav qhov project tseem ceeb, thiab lub tsev thiab lub ru tsev tau ua tiav;
Tag nrho cov embedded qhov chaw, qhov rooj, qhov rais thiab cov kav dej ntawm cov tshauv hauv paus yuav tsum tau ntsia;
Txhawm rau tiv thaiv kev kis kab mob thiab kev puas tsuaj rau cov khoom tiav hauv batch scraping txheej txheem, cov khoom tiv thaiv tshwj xeeb thiab kev ntsuas yuav tsum tau txiav txim siab ua ntej batch scraping, thiab cov khoom tsim nyog yuav tsum tau them thiab qhwv;
Lub installation ntawm lub qhov rais yuav tsum tau nqa tawm tom qab lub putty batch yog scraped.
3. Kev kho deg:
Qhov saum npoo ntawm substrate yuav tsum ruaj, tiaj tus, qhuav thiab huv si, tsis muaj roj, batik thiab lwm yam xoob;
Qhov saum npoo ntawm plastering tshiab yuav tsum tau kho rau 12 hnub ua ntej lub putty tuaj yeem raug khawb, thiab cov txheej plaster qub tsis tuaj yeem calendered nrog cement paste;
Yog tias phab ntsa qhuav dhau ua ntej kev tsim kho, phab ntsa yuav tsum tau wetted ua ntej.
4. Cov txheej txheem ua haujlwm:
Ncuav dej kom tsim nyog rau hauv lub thawv, tom qab ntawd ntxiv cov hmoov qhuav qhuav, thiab tom qab ntawd tag nrho do nrog lub tov khoom kom txog thaum nws yog ib qho kev sib xyaw uas tsis muaj hmoov nplej thiab nag lossis daus;
Siv batch scraping cuab tam rau batch scraping, thiab lub thib ob batch scraping yuav nqa tawm tom qab thawj txheej ntawm batch embedding tiav li ntawm 4 teev;
Scrape lub putty txheej smoothly, thiab tswj lub thickness yuav txog 1.5 hli;
Cov cement-based putty tuaj yeem pleev xim nrog alkali-resistant primer tsuas yog tom qab lub ntuj kho tau tiav kom txog rau thaum cov alkalinity thiab lub zog ua tau raws li qhov yuav tsum tau ua;
5. Lus Cim:
Lub verticality thiab flatness ntawm lub substrate yuav tsum tau txiav txim siab ua ntej kev tsim kho;
Cov hmoov sib tov sib xyaw yuav tsum siv li ntawm 1 ~ 2h (nyob ntawm cov qauv);
Tsis txhob sib tov cov tshuaj khib nyiab uas tau dhau lub sijhawm siv nrog dej ua ntej siv;
Nws yuav tsum tau polished nyob rau hauv 1 ~ 2d;
Thaum lub hauv paus nto yog calendered nrog cov cement mortar, nws raug nquahu kom siv tus neeg saib xyuas kev kho mob lossis kev sib txuas ntawm putty thiab elastic putty.
Dosage ntawmredispersible polymer hmoovtuaj yeem xa mus rau cov ntaub ntawv ntau npaum li cas hauv cov qauv ntawm sab nrauv phab ntsa putty hmoov. Nws raug nquahu kom cov neeg siv khoom ua ntau qhov sib txawv me me sim ua ntej ntau lawm kom ntseeg tau tias cov hmoov putty zoo.
Lub sij hawm xa tuaj: Plaub Hlis-28-2024