Txoj Cai Ua Haujlwm Ntawm Naphthalene Series High-efficiency Water Reducer
Dec 26, 2022
Lub hauv paus ntsiab lus ntawm kev ua haujlwm ntawm naphthalene-based high-efficiency dej reducer yog tsim los ntawm kev txhim kho cov khoom tawg ntawm cov cement hauv dej, yog li txo lossis tiv thaiv cov flocculation ntawm cov khoom, thiab tso cov dej ua ke raws li cov dej ntws ntawm cov khoom.
Naphthalene-raws li high-efficiency dej reducers muaj cov polar hydrophilic pawg uas tuaj yeem ua raws li cov lus qhia ntawm cov cement, thiab koom nrog cov dej molecules nyob rau hauv daim ntawv ntawm hydrogen bonds, ua ke nrog hydrogen bonds ntawm cov dej molecules, ua rau saum npoo ntawm cov cement. Particles Cov yeeb yaj kiab dej ruaj khov tiv thaiv kev sib cuag ncaj qha ntawm cov cement hais, ua rau muaj peev xwm zawv zawg ntawm cov cement hais, thiab ua lub luag haujlwm lubricating, yog li ntxiv txhim kho fluidity ntawm slurry.
Qhov loj dua cov txheeb ze molecular loj ntawm naphthalene-raws li high-efficiency dej reducer, qhov ntev ntawm cov saw molecular, ntau sulfonic acid pawg nyob rau hauv txhua molecule, lub thicker lub diffusion txheej adsorbed rau saum npoo ntawm cov cement hais, thiab qhov zoo dua qhov dispersion. nyhuv. Raws li cov ntsiab lus saum toj no ntawm kev nqis tes ua, Peb kuj tseem ua haujlwm rau kev sib txuas ntawm naphthalene-based superplasticizers nrog cov txheeb ze dua molecular hnyav, thiaj li muaj cov nyhuv dej txo qis.
Naphthalene-based high-efficiency superplasticizers tuaj yeem hnov mob nrog cov khoom siv ntau dua (CaO) 3SiO2 hauv cov cement, uas yuav txo cov dej-txo tus neeg saib xyuas uas ua lub luag haujlwm hauv kev tawg hauv cov kua theem thiab txo cov dej-txo tus nqi. Txoj kev tshawb no tuaj yeem piav qhia txog kev sib raug zoo ntawm naphthalene-raws li dej-txo cov cement, vim hais tias cov ntsiab lus ntawm C3A hauv cov cement sib txawv, thiab tib tus nqi ntawm naphthalene-raws li dej-txo yuav muaj cov dej-txo cov nqi sib txawv rau cov cement sib txawv.