Kev ua haujlwm ntawm redispersible latex hmoov:
1. Lub dispersible latex hmoov tsim ib zaj duab xis thiab ua hauj lwm raws li ib tug nplaum los txhim kho nws lub zog;
2. Cov kev tiv thaiv colloid yog absorbed los ntawm mortar system (nws yuav tsis puas los ntawm dej tom qab tsim zaj duab xis, los yog "secondary dispersion";
3. Cov zaj duab xis-forming polymer resin yog muab faib ua cov khoom siv txhawb nqa thoob plaws tag nrho cov mortar system, yog li ua kom cov cohesion ntawm mortar; Redispersible emulsion hmoov yog ib hom hmoov nplaum ua los ntawm cov tshuaj pleev ib ce (siab molecular polymer) tom qab tshuaj tsuag kom qhuav. Tom qab sib cuag nrog dej, cov hmoov no tuaj yeem tawg sai sai rau daim ntawv pleev xim, thiab muaj cov khoom zoo ib yam li cov tshuaj pleev xim thawj zaug, uas yog, cov dej tuaj yeem tsim cov yeeb yaj kiab tom qab evaporation. Cov yeeb yaj kiab no muaj qhov hloov tau yooj yim, huab cua tsis kam thiab siab adhesion rau ntau yam substrates.
Lub luag haujlwm ntawm redispersible latex hmoov:
Txhim kho qhov cuam tshuam
Redispersible latex hmoov, uas yog cov thermoplastic resin. Nws yog ib tug mos mos zaj duab xis coated rau saum npoo ntawm mortar hais, uas muaj peev xwm nqus tau cov kev cuam tshuam ntawm sab nraud quab yuam, so tsis muaj kev puas tsuaj, yog li txhim kho qhov cuam tshuam ntawm mortar.
Txhim kho hnav tsis kam thiab durability
Ntxiv cov hmoov nplej redispersible tuaj yeem ua rau kom muaj kev sib raug zoo ntawm cov cement mortar hais thiab polymer films. Qhov kev txhim kho ntawm cov nplaum nplaum sib raug zoo txhim kho lub peev xwm ntawm mortar kom tiv taus kev ntxhov siab, txo tus nqi hnav, txhim kho kev hnav tsis kam, thiab ua rau lub neej kev pab cuam ntawm mortar.
Txhim kho hydrophobicity thiab txo qhov nqus dej
Ntxiv redispersible latex hmoov tuaj yeem txhim kho microstructure ntawm cement mortar. Nws cov polymer tsim ib qho kev sib txuas tsis tau hauv cov txheej txheem cement hydration, kaw cov capillary hauv cov cement gel, thaiv cov dej nkag, thiab txhim kho impermeability.
Txhim kho kev sib raug zoo zog thiab cohesion
Redispersible latex hmoov muaj qhov cuam tshuam tseem ceeb ntawm kev txhim kho kev sib raug zoo thiab kev sib koom ua ke ntawm cov ntaub ntawv. Vim yog kev nkag mus ntawm cov khoom siv polymer rau hauv qhov pores thiab capillaries ntawm cov cement matrix, nws tsim tau zoo cohesion tom qab hydration nrog cement. Qhov zoo heev adhesion ntawm polymer resin nws tus kheej txhim kho cov adhesion ntawm cement mortar khoom rau substrates, tshwj xeeb tshaj yog cov neeg pluag adhesion ntawm inorganic binders xws li cov cement rau organic substrates xws li ntoo, fiber, PVC, thiab EPS, cov nyhuv yog pom tseeb.
Txhim kho khov-thaw stability thiab zoo tiv thaiv cov khoom tawg
Redispersible latex hmoov thiab nws cov thermoplastic resin tuaj yeem kov yeej qhov kev puas tsuaj ntawm Thermal expansion ntawm cement mortar los ntawm qhov kub thiab txias. Kev kov yeej cov yam ntxwv ntawm qhov loj qhuav shrinkage deformation thiab yooj yim tawg ntawm ntshiab cement mortar tuaj yeem ua rau cov khoom hloov tau yooj yim, yog li txhim kho cov khoom siv mus ntev.
Txhim kho khoov thiab tensile kuj
Nyob rau hauv cov txheej txheem nruj tsim los ntawm hydration ntawm cement mortar, daim nyias nyias ntawm cov polymer yog elastic thiab saj zawg zog, ua si ib qho kev ua haujlwm zoo ib yam li kev sib koom ua ke ntawm cov cement mortar hais. Nws tuaj yeem tiv taus siab deformation loads, txo kev ntxhov siab, thiab txhim kho tensile thiab khoov tsis kam.
Qhov zoo ntawm redispersible latex hmoov
Tsis tas yuav khaws cia thiab thauj nrog dej, txo cov nqi tsheb thauj mus los; Lub sijhawm cia ntev, tiv thaiv khov, yooj yim khaws cia; Lub ntim yog me me, lub teeb hauv qhov hnyav, thiab siv tau yooj yim; Nws tuaj yeem sib xyaw nrog cov dej-raws li cov ntaub ntawv los tsim cov khoom siv hluavtaws hloov ua ntej. Thaum siv, tsuas yog dej yuav tsum tau ntxiv, uas tsis tsuas yog zam kev ua yuam kev thaum sib xyaw ntawm qhov chaw, tab sis kuj txhim kho kev nyab xeeb ntawm cov khoom tuav.
Post lub sij hawm: Aug-02-2023