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Abstract: Kev lag luam kev tsim kho ua lub luag haujlwm tseem ceeb hauv kev tsim lub ntiaj teb niaj hnub no, uas cov cement yog lub hauv paus tseem ceeb ntawm kev tsim kho. Tau ntau xyoo, cov kws tshawb fawb thiab cov engineers tau txuas ntxiv nrhiav txoj hauv kev los txhim kho qhov zoo thiab kev ua tau zoo ntawm cement. Ib txoj hauv kev zoo siab suav nrog kev ntxiv cov khoom ntxiv ...Nyeem ntxiv»
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Abstract: Calcium formate, ib qho ntsev calcium ntawm formic acid, tau txais kev saib xyuas dav dav ua ib qho khoom noj khoom haus ntxiv rau xyoo tas los no. Cov tshuaj no tau lees paub rau nws ntau yam txiaj ntsig hauv kev noj zaub mov tsiaj, txhawb kev loj hlob, txhim kho kev noj qab haus huv, thiab txhim kho kev ua tau zoo tag nrho. Cov kev tshuaj xyuas no yog ...Nyeem ntxiv»
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kev lag luam kev tsim kho tau ua tiav zoo heev nyob rau xyoo tas los no, nrog rau kev tsom mus rau kev txhim kho kev ua tau zoo, kev ruaj khov thiab kev ruaj khov ntawm cov ntaub ntawv tsim kho. Hydroxypropyl methylcellulose (HPMC) tau dhau los ua cov khoom siv ntxiv rau hauv cov hmoov gypsum-based building mater...Nyeem ntxiv»
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Cov hmoov txhuv nplej siab ethers yog ib hom hmoov txhuv nplej siab hloov kho uas tau txais kev saib xyuas dav dav hauv ntau yam kev siv hauv kev lag luam vim lawv qhov kev hloov pauv tau yooj yim thiab cov khoom tshwj xeeb. Txawm hais tias nws feem ntau siv rau hauv cov nplaum rau nws cov peev xwm sib txuas, nws qhov kev haum rau qhov kub thiab txias nyob ntawm ...Nyeem ntxiv»
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qhia: Ib qho kev qhia luv luv txog Hydroxyethyl Cellulose (HEC) thiab nws qhov tseem ceeb hauv cov khoom siv hauv tsev. Piav qhia txog kev siv cov nplaum thiab cov stabilizers hauv ntau yam khoom siv rau cov neeg siv khoom. Ntu 1: HEC Adhesives Txheej txheem cej luam: Txhais HEC thiab nws cov khoom siv tshuaj lom neeg. Sib tham txog cov khoom nplaum ntawm HEC thiab...Nyeem ntxiv»
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Hydroxyethylcellulose (HEC) yog ib qho khoom siv ua kom tuab thiab siv tau zoo uas siv dav hauv ntau yam lag luam. Cov tshuaj no yog los ntawm cellulose, ib qho polymer ntuj uas pom muaj ntau hauv cov phab ntsa cell ntawm cov nroj tsuag. HEC cov yam ntxwv tshwj xeeb ua rau nws zoo tagnrho rau kev ua kom tuab ntawm ntau yam khoom, los ntawm ...Nyeem ntxiv»
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Abstract: Cov tshuaj silicone defoamers yog qhov tseem ceeb rau kev ua haujlwm zoo ntawm cov kua dej drilling hauv kev lag luam roj thiab roj av. Tsab xov xwm no muab kev saib tob txog cov tshuaj silicone defoamers, lawv cov khoom, cov txheej txheem ua haujlwm, thiab kev nkag siab txog lawv cov ntawv thov tshwj xeeb hauv kev drilling...Nyeem ntxiv»
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qhia txog: Cov hmoov polymer uas tawg tau dua tshiab (RDP) yog ib qho tseem ceeb ntawm ntau yam khoom siv hauv tsev, suav nrog cov tshuaj sib xyaw ua ke. Cov tshuaj no feem ntau siv rau hauv cov ntawv thov hauv pem teb los tsim kom muaj qhov chaw du thiab tiaj tus. Nkag siab txog kev sib cuam tshuam ntawm RDP thiab kev sib xyaw ua ke...Nyeem ntxiv»
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Abstract: Calcium yog ib qho tseem ceeb hauv cov pob zeb uas ua lub luag haujlwm tseem ceeb hauv ntau yam txheej txheem hauv lub cev tib neeg. Txawm hais tias cov khoom siv calcium ib txwm muaj, xws li cov khoom noj mis nyuj, tau lees paub ntev los lawm, lwm cov tshuaj calcium ntxiv, suav nrog calcium formate, tau nyiam cov neeg tuaj saib ...Nyeem ntxiv»
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qhia: Cov tshuaj pleev rau phab ntsa sab hauv ua lub luag haujlwm tseem ceeb hauv kev ua kom cov phab ntsa du thiab zoo nkauj. Ntawm ntau yam khoom xyaw uas ua rau cov tshuaj pleev rau phab ntsa, cov hmoov polymer redispersible (RDP) sawv tawm rau lub luag haujlwm tseem ceeb uas lawv ua si hauv kev txhim kho kev ua tau zoo thiab cov khoom ntawm cov khoom kawg ...Nyeem ntxiv»
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Cov tshuaj ntxuav qib CMC Cov tshuaj ntxuav qib CMC Sodium carboxymethyl cellulose yog los tiv thaiv cov av rov qab los, nws lub hauv paus ntsiab lus yog cov av tsis zoo thiab adsorbed rau ntawm daim ntaub nws tus kheej thiab them CMC molecules muaj kev sib koom ua ke electrostatic repulsion, ntxiv rau, CMC kuj tseem tuaj yeem ua rau cov tshuaj ntxuav slurry lossis xab npum kua ...Nyeem ntxiv»
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HPMC yog hu ua hydroxypropyl methylcellulose. HPMC khoom xaiv cov paj rwb cellulose ntshiab heev ua cov khoom siv raw thiab yog ua los ntawm kev sib xyaw tshwj xeeb hauv qab alkaline tej yam kev mob. Tag nrho cov txheej txheem yog ua tiav hauv GMP tej yam kev mob thiab kev saib xyuas tsis siv neeg, tsis muaj cov khoom xyaw nquag suc ...Nyeem ntxiv»