Lub luag haujlwm ntawm cov hmoov latex redispersible:
1. Cov hmoov latex uas yaj tau ua ib zaj duab xis thiab ua haujlwm ua cov nplaum kom txhim kho nws lub zog;
2. Cov tshuaj colloid tiv thaiv raug nqus los ntawm lub cev mortar (nws yuav tsis raug puas tsuaj los ntawm dej tom qab tsim zaj duab xis, lossis "kev tawg thib ob");
3. Cov tshuaj polymer uas ua zaj duab xis tau muab faib ua cov khoom siv txhawb nqa thoob plaws hauv lub cev mortar, yog li ua rau cov mortar sib koom ua ke ntau dua; Cov hmoov emulsion uas tawg dua yog ib hom hmoov nplaum ua los ntawm cov tshuaj pleev (polymer molecular siab) tom qab txau kom qhuav. Tom qab sib cuag nrog dej, cov hmoov no tuaj yeem rov ua kom tawg sai sai los ua cov tshuaj pleev, thiab muaj cov yam ntxwv zoo ib yam li cov tshuaj pleev thawj zaug, uas yog, dej tuaj yeem ua zaj duab xis tom qab ua pa. Zaj duab xis no muaj kev ywj pheej siab, tiv taus huab cua siab thiab lo rau ntau yam khoom siv.
Lub luag haujlwm ntawm cov hmoov latex redispersible:
Txhim kho qhov cuam tshuam tsis kam
Cov hmoov latex uas tawg tau dua, uas yog cov thermoplastic resin. Nws yog ib daim zaj duab xis mos mos uas coated rau ntawm qhov chaw ntawm cov khoom mortar, uas tuaj yeem nqus tau qhov cuam tshuam ntawm cov zog sab nraud, so tsis muaj kev puas tsuaj, yog li txhim kho qhov kev tiv thaiv ntawm mortar.
Txhim kho kev hnav tsis kam thiab kev ua haujlwm ntev
Ntxiv cov hmoov latex uas tawg tau dua tuaj yeem ua rau muaj kev sib txuas ntawm cov cement mortar thiab cov zaj duab xis polymer ntau dua. Qhov kev txhim kho ntawm lub zog nplaum ua rau lub peev xwm ntawm cov mortar tiv taus kev ntxhov siab, txo qhov kev hnav, txhim kho kev hnav tsis kam, thiab ua kom lub neej ua haujlwm ntawm cov mortar ntev dua.
Txhim kho hydrophobicity thiab txo cov dej nqus
Ntxiv cov hmoov latex uas yaj tau dua tuaj yeem txhim kho qhov microstructure ntawm cov cement mortar. Nws cov polymer tsim ib lub network tsis rov qab tau hauv cov txheej txheem hydration cement, kaw cov capillary hauv cov cement gel, thaiv cov dej nkag, thiab txhim kho qhov tsis pub dej nkag.
Txhim kho lub zog thiab kev sib koom ua ke
Cov hmoov latex uas tawg tau dua tshiab muaj qhov cuam tshuam loj rau kev txhim kho lub zog sib txuas thiab kev sib koom ua ke ntawm cov ntaub ntawv. Vim yog qhov nkag mus ntawm cov khoom polymer rau hauv cov qhov hws thiab cov hlab ntsha ntawm cov cement matrix, nws tsim cov cohesion zoo tom qab hydration nrog cement. Qhov kev sib txuas zoo ntawm polymer resin nws tus kheej txhim kho qhov kev sib txuas ntawm cov khoom cement mortar rau cov substrates, tshwj xeeb tshaj yog qhov kev sib txuas tsis zoo ntawm cov inorganic binders xws li cement rau cov organic substrates xws li ntoo, fiber, PVC, thiab EPS, Qhov cuam tshuam yog qhov pom tseeb.
Txhim kho qhov ruaj khov thiab yaj kom zoo thiab tiv thaiv cov khoom tawg
Cov hmoov latex uas tawg tau dua thiab nws cov thermoplastic resin tuaj yeem kov yeej qhov kev puas tsuaj ntawm Thermal expansion ntawm cov cement mortar los ntawm qhov sib txawv ntawm qhov kub. Kev kov yeej cov yam ntxwv ntawm kev qhuav qhuav loj thiab kev tawg yooj yim ntawm cov cement mortar ntshiab tuaj yeem ua rau cov khoom siv yooj ywm dua, yog li txhim kho kev ruaj khov mus sij hawm ntev ntawm cov khoom siv.
Txhim kho qhov khoov thiab tensile tsis kam
Hauv cov qauv khov kho uas tsim los ntawm kev sib xyaw ntawm cov cement mortar, daim nyias nyias ntawm cov polymer yog elastic thiab yoog tau, ua lub luag haujlwm zoo ib yam li kev sib koom ua ke ntawm cov khoom me me ntawm cov cement mortar. Nws tuaj yeem tiv taus cov khoom hnyav deformation, txo kev ntxhov siab, thiab txhim kho kev tiv thaiv tensile thiab khoov.
Cov txiaj ntsig ntawm cov hmoov latex uas tau tawg ua dua tshiab
Tsis tas yuav khaws cia thiab thauj nrog dej, txo cov nqi thauj mus los; Lub sijhawm khaws cia ntev, tiv thaiv kev khov, yooj yim khaws cia; Lub ntim khoom me me, lub teeb yuag, thiab yooj yim siv; Nws tuaj yeem sib xyaw nrog cov dej-raws li binder los ua cov khoom siv hluavtaws hloov kho premix. Thaum siv, tsuas yog dej yuav tsum tau ntxiv, uas tsis tsuas yog zam kev ua yuam kev thaum sib tov ntawm qhov chaw, tab sis kuj txhim kho kev nyab xeeb ntawm kev tuav khoom.
Lub sijhawm tshaj tawm: Lub Yim Hli-02-2023