Cellulose ether yog lub ntsiab additive nyob rau hauv npaj-mixed mortar.Cov hom thiab cov yam ntxwv ntawm cov cellulose ether tau qhia.Cov teebmeem ntawm hypromellose ether HPMC ntawm cov khoom ntawm mortar tau kawm ua haujlwm.Cov txiaj ntsig tau pom tias HPMC tuaj yeem txhim kho cov dej tuav cov khoom ntawm mortar, txo cov ntsiab lus ntawm cov dej, txo qhov ntom ntawm cov tshuaj khib nyiab sib xyaw, ua kom lub sijhawm teem sijhawm, thiab txo cov flexural thiab compressive zog ntawm mortar.Mortar yog ib qho ntawm cov khoom siv dav tshaj plaws hauv kev tsim kho kev lag luam.Nrog rau txoj kev loj hlob ntawm cov ntaub ntawv science thiab qhov kev thov ntawm kev tsim kho zoo, mortar tau ua nrov raws li npaj txhij-sib xyaw, nws tau maj mam ua lag luam.Piv nrog rau cov mortar npaj los ntawm cov cuab yeej siv niaj hnub, kev lag luam ntawm cov tshuaj khib nyiab muaj ntau yam zoo: 1, cov khoom zoo;2, high product efficiency;3, tsis tshua muaj kuab paug ib puag ncig, yooj yim rau kev tsim kho kev lag luam, tam sim no, muaj Guangzhou, Shanghai, Beijing thiab lwm lub nroog los txhawb kev sib xyaw mortar, ntsig txog kev lag luam cov qauv, cov qauv thiab cov qauv hauv teb chaws tau muab los yog yuav muab tawm sai sai.Qhov sib txawv loj ntawm kev npaj sib xyaw mortar thiab cov tshuaj mortar yog qhov sib ntxiv ntawm cov tshuaj lom neeg, ntawm cov cellulose ether yog cov tshuaj siv tshuaj lom neeg.Cellulose ether feem ntau yog siv los ua tus neeg saib xyuas dej los txhim kho kev ua haujlwm ntawm cov khoom sib xyaw ua ke.Yog li ntawd, nws yog ib qho tsim nyog los xaiv thiab siv cellulose ether kom raug thiab xyuas kom muaj kev ruaj ntseg ntawm kev ua tau zoo ntawm cov cement mortar los ntawm kev nkag siab ntxiv txog kev cuam tshuam ntawm cellulose ether hom thiab cov yam ntxwv ntawm kev ua haujlwm ntawm cement mortar.
1. Cov hom thiab cov qauv ntawm cellulose ether cellulose ether yog ib hom dej-soluble polymer khoom, nws yog ua los ntawm ntuj cellulose los ntawm alkali tov, grafting cov tshuaj tiv thaiv (etherification), ntxuav, ziab, sib tsoo thiab lwm yam txheej txheem.Cellulose ethers tau muab faib ua ionic thiab non-ionic hom.Ionic cellulose muaj carboxymethyl cellulose ntsev, thaum uas tsis yog-ionic cellulose muaj hydroxyethyl cellulose ethers, hydroxypropyl methyl cellulose ethers, Methyl cellulose ethers, thiab lwm yam.Vim hais tias ionic cellulose ether (carboxymethyl cellulose) tsis ruaj khov nyob rau hauv lub xub ntiag ntawm calcium ions, nws yog tsis tshua muaj siv nyob rau hauv qhuav hmoov khoom nrog cementitious cov ntaub ntawv xws li cement thiab hydrated txiv qaub, cellulose ethers siv nyob rau hauv qhuav mortar yog tsuas yog hydroxyethyl methyl cellulose ethers (HEMC. ) thiab hydroxypropyl methyl cellulose ethers (HPMC), lawv cov lag luam feem ntau tshaj 90% 2. Cov nyhuv ntawm cellulose ether ntawm cov khoom ntawm cement mortars 1. Cov khoom siv raw cellulose ether rau kev kuaj: tsim los ntawm Shandong Gomez Chemical Co., Ltd. , viscosity: 75000;Cement: 32.5 qib sib xyaw cement;Xuab zeb: nruab nrab xuab zeb;Fly Ash: II qib.2 kev xeem tau 1. Cov dej-txo cov nyhuv ntawm cellulose ether daim duab 2 yog kev sib raug zoo ntawm kev sib xws ntawm mortar thiab cov ntsiab lus ntawm cellulose ether nyob rau hauv tib qhov sib xyaw ua ke, maj mam nce.Thaum ntxiv 0.3 ‰, qhov sib xws ntawm mortar yog nce li ntawm 50%, uas qhia tau hais tias cellulose ether tuaj yeem txhim kho kev ua haujlwm ntawm mortar, nrog rau kev nce ntawm cov ntsiab lus ntawm cellulose ether, cov dej siv tau maj mam txo. .Nws tuaj yeem suav hais tias cellulose ether muaj qee yam dej-txo cov nyhuv.2. Cov dej tuav dej khib nyiab yog hais txog lub peev xwm ntawm mortar tuav dej, thiab tseem yog qhov ntsuas kev ua tau zoo los ntsuas qhov ruaj khov ntawm cov cement mortar tshiab thaum thauj thiab nres tsheb.Cov dej khaws cia ntawm cov khoom sib xyaw npaj tau tuaj yeem ntsuas los ntawm qhov ntsuas ntawm Delamination thiab khaws cia dej, tab sis nws tsis muaj kev cuam tshuam txaus los cuam tshuam qhov sib txawv vim yog ntxiv cov dej tuav pov hwm.Kev ntsuas dej tuav yog ntsuas cov dej tuav tus nqi los ntawm kev ntsuas qhov kev hloov pauv ntawm cov ntawv lim dej ua ntej thiab tom qab kev sib cuag nrog thaj tsam ntawm mortar hauv qee lub sijhawm.Vim tias qhov nqus dej zoo ntawm cov ntawv lim dej, txawm tias cov dej khaws cia ntawm cov mortar siab heev, cov ntawv lim tseem tuaj yeem nqus cov dej ntawm cov mortar, yog li cov dej tuav tus nqi tuaj yeem cuam tshuam cov dej tuav ntawm mortar, qhov siab dua cov dej tuav. tus nqi, qhov zoo dua cov dej tuav.
Post lub sij hawm: Oct-30-2023