Kev ua haujlwm ntawm redispersible latex hmoov:
1. Covredispersible latex hmoov (Rigid nplaum hmoov Neutral roj hmab hmoov Neutral latex hmoov)tsim ib zaj duab xis tom qab dispersion 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 lub mortar system (nws yuav tsis raug puas tsuaj los ntawm dej los yog "secondary dispersion" tom qab cov zaj duab xis yog tsim. yog li ua kom cov cohesion ntawm lub mortar; lub redispersible latex hmoov yog cov hmoov nplaum uas ua los ntawm cov tshuaj pleev kom qhuav (high molecular polymer) tshuaj tsuag tom qab sib cuag nrog dej, cov hmoov no tuaj yeem tawg sai sai rau cov tshuaj pleev ib ce, thiab muaj cov khoom zoo ib yam Thawj cov tshuaj pleev ib ce, 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.
Kev ua haujlwm ntawmRDP: txhawm rau txhim kho kev cuam tshuam, redispersible latex hmoov 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 los ntawm kev ntxivredispersible latex hmoovtuaj yeem ua kom qhov ntom ntom 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, thiab ntxivredispersible latex hmoovtuaj 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 lub zog sib txuas thiab cohesion ntawm cov ntaub ntawv los ntawm kev sivredispersible latex hmoovplays lub luag haujlwm tseem ceeb hauv kev txhim kho kev sib txuas ntawm lub zog thiab cohesion ntawm cov ntaub ntawv.Vim yog kev nkag mus ntawm cov khoom siv polymer rau hauv qhov pores thiab capillaries ntawm cov cement matrix, zoo cohesion yog tsim tom qab hydration nrog cement.Cov kev sib raug zoo zoo ntawm cov khoom siv polymer nws tus kheej txhim kho qhov adhesion ntawm cov khoom siv cement mortar rau substrates, tshwj xeeb tshaj yog cov cement, ib qho inorganic binder, rau ntoo, fibers, PVC Qhov kev txhim kho tsis zoo adhesion ntawm cov organic substrates xws li EPS muaj cov txiaj ntsig zoo.Txhim kho khov-thaw stability zoo tiv thaiv cov khoom tawg, thiab covredispersible latex hmoovmuaj cov nyhuv yas ntawm nws cov thermoplastic resin, uas tuaj yeem kov yeej qhov kev puas tsuaj ntawm thermal expansion thiab contraction los ntawm qhov kub thiab txias ntawm cov ntaub ntawv cement mortar.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 ntawmredispersible 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: Sep-05-2023