Lub hom phiaj ntawm polycarboxylate superplasticizer kev tshawb fawb yog txhawm rau copolymerize cov monomers tsis txaus nyob rau hauv qhov kev nqis tes ntawm tus pib, thiab txhawm rau txuas ib sab txuas nrog cov pab pawg nquag mus rau cov saw tseem ceeb ntawm polymer, yog li nws tuaj yeem ib txhij txo dej, tswj kev poob qis thiab tiv thaiv kev poob qis, thiab ua tsis cuam tshuam rau qhov teeb tsa thiab tawv ntawm cov cement.
Thoob plaws hauv txoj kev txhim kho polycarboxylate superplasticizer nyob hauv tsev thiab txawv teb chaws, txawv teb chaws txawv teb chaws (tshwj xeeb yog Nyiv Pooj, Lub Tebchaws Yelemees, thiab lwm yam) tau tsim ntau qhov kev txiav txim siab thev naus laus zis thiab khoom lag luam, thiab nyob rau hauv kev txhawb nqa ntawm nws lub zog muaj zog thev naus laus zis, tau tsim kho kom nrawm, ntau yam khoom tau nkag mus rau Suav lag luam. Txhawm rau kom nqaim qhov sib txawv nrog cov tebchaws txawv teb chaws, nws yog qhov yuav tsum tau nqus cov txuj ci thev naus laus zis txawv teb chaws thiab ntxiv dag zog rau kev tshawb fawb yooj yim ntawm polycarboxylic acid dej-txo tus neeg sawv cev. Los ntawm qhov xwm txheej tam sim no, nws yuav tsum tau kawm los ntawm cov hauv qab no:
1) Los ntawm kev tsim cov qauv molecular, cov polymer nrog txo dej ntau, tiv thaiv qis qis, qis qis thiab qis cua nkag mus ua haujlwm tau txais;
2) Txhim kho lub cim tshiab ntawm cov neeg ua haujlwm txo dej ntau, tshwj xeeb tshaj yog cov neeg txo cov dej nrog tus nqi siab, tiv thaiv kev poob qis, thiab tuaj yeem txo qis qis ntawm cov pob zeb ua ke;
3) Rau cov khoom siv ua vaj tsev ua ntej, kev txhim kho cov dej txo qis qis, lub zog siab thiab lub zog muaj zog thaum ntxov ntawm polycarboxylic acid series dej txo qis, thiaj li ua tau raws li cov txheej txheem tsim khoom ntawm precast qhob, thiab tuaj yeem hloov pauv ua kom sov lossis txawm tias autoclaved tua. txuas, txo qis tus nqi thiab kev siv zog ntau.
4) Kev sib sau ntawm polyethylene (lossis propylene) monomer nrog kev ua haujlwm polymerization;
