Yuav Ua Li Cas Txog Hmoov Polycarboxylic Acid Superplasticizer?

Polycarboxylate superplasticizers (PCEs) yog lub cim tshiab ntawm cov dej ua haujlwm siab uas tau tshwm sim nyob rau xyoo tas los no ob qho tib si hauv tebchaws thiab thoob ntiaj teb. Piv nrog rau cov khoom siv dej ua kom muaj txiaj ntsig zoo ib yam li naphthalene-based, polycarboxylate superplasticizers muaj ntau yam kev ua tau zoo:

(1) Lawv muaj qhov ntau npaum li cas tab sis cov dej txo qis;

(2) Lawv tswj xyuas qhov dej zoo ntawm cov pob zeb sib tov;

(3) Lawv muaj kev sib raug zoo nrog cov cement;

(4) Lawv ua rau qis qis ntawm cov pob zeb npaj, muaj txiaj ntsig zoo rau nws txoj kev ruaj khov thiab kav ntev;

(5) Lawv yog cov phooj ywg ib puag ncig thiab tsis muaj kuab paug thaum tsim khoom thiab siv, cais raws li cov khoom ntxiv ntsuab. Vim cov kev ua tau zoo no, polycarboxylate superplasticizers tau txais kev saib xyuas thoob plaws hauv engineering sector nyob rau xyoo tas los no hauv Suav teb, thiab ntau qhov haujlwm tseem ceeb tau siv hom tshiab ntawm cov dej reducer ntau.

Txawm li cas los xij, raws li polycarboxylate superplasticizers feem ntau yog ua kua, cov txheej txheem kev tsim cov hmoov nplej yog qhov nyuaj thiab muaj kev phom sij, ua rau cov kua muag muag hauv khw. Nyob rau hauv xyoo tas los no, kev nce qib hauv thev naus laus zis tau txhim kho cov txheej txheem tsim cov hmoov, ua cov hmoov polycarboxylate superplasticizer ntau dua. Txawm li cas los xij, qhov zoo ntawm cov hmoov polycarboxylic acid superplasticizer ntawm kev ua lag luam sib txawv ntawm cov khoom siv, thiab kev ruaj ntseg tseem nyuaj. Vim li cas qhov no?

Ua ntej, hmoov polycarboxylate superplasticizers yog npaj los ntawm cov kua niam cov kua, uas txawv ntawm manufacturers. Kev hloov pauv hauv ib puag ncig, qhov kub thiab txias, thiab cov txheej txheem ua haujlwm thaum lub sijhawm polymerization kuj ua rau muaj qhov sib txawv. Yog li, yog tias cov chaw tsim khoom tsis tuaj yeem tswj hwm cov khoom ntawm polycarboxylate niam cawv, lawv yuav tsum yuav ntau yam-zoo niam cawv los ntawm lwm lub tuam txhab rau kev ziab kom qhuav, ua rau tsis zoo ntawm cov hmoov polycarboxylates.

Qhov thib ob, kev tsim khoom suav nrog centrifugal tsuag kom qhuav los npaj cov hmoov polycarboxylate superplasticizers, qhov tseem ceeb tshem tawm cov dej los ntawm cov kua dej ntxiv. Txoj kev no yields hmoov nrog cov ntsiab lus ruaj khov mus txog 99%. Txawm li cas los xij, kev tswj hwm nruj ntawm ntau cov ntsiab lus tsim khoom yog tsim nyog. Piv txwv li, qhov zoo tshaj plaws rau kev ziab kom qhuav muaj xws li cov cua kub ntawm 180-220 degree, pub cov kua kub ntawm 20-40 degree, cov ntsiab lus ntawm cov khoom noj hauv cov kua noj li ntawm 20% mus rau 60%, thiab ua tib zoo saib xyuas lub sij hawm tawm. los tiv thaiv qhov tshwm sim ntxov ntxov uas tuaj yeem ua rau cov khoom lag luam tsis zoo.

Txawm tias muaj kev tswj hwm nruj ntawm txhua theem, qee qhov decomposition ntawm carbonyl pawg hauv polycarboxylate superplasticizer molecules tshwm sim thaum ziab, uas yuav cuam tshuam rau kev ua haujlwm macroscopic. Txawm li cas los xij, kev tswj hwm ntawm cov txheej txheem ntau lawm ua kom ntseeg tau tias cov khoom kawg kev ua tau zoo tseem tsis cuam tshuam.

Nyob rau hauv kev muaj tiag, hmoov ntau lawm technology nyob rau hauv Tuam Tshoj tseem tsis tau tag nrho mature. Tsis tas li ntawd, vim muaj qhov sib tov qis, tsim kom muaj cov kab ziab kom qhuav yuav tsum muaj peev txheej loj, qhov chaw yuav tsum nruj, thiab cov cuab yeej siv siab heev. Yog li ntawd, tsuas yog ob peb scaled-up hmoov polycarboxylate ntau lawm chaw muaj nyob rau hauv Suav teb. Yog li ntawd, ntau lub koom haum hauv online uas lees tias yog hmoov polycarboxylate cov tuam txhab lag luam tsuas yog cov tub lag luam lossis siv cov neeg thib peb cov tshuab ziab khaub ncaws, tsis tuaj yeem lav cov khoom zoo. Borida ua haujlwm nws tus kheej tsim los rau cov hmoov polycarboxylic acid superplasticizer, nruab nrog cov cuab yeej tsim khoom lag luam thiab cov cuab yeej siv siab heev. Yog tias koj xav tau cov hmoov polycarboxylic acid superplasticizer, thov hu rau peb.