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Hauv cov cement mortar thiab gypsum-based slurry, hydroxypropyl methylcellulose tsuas yog ua lub luag haujlwm ntawm dej tuav thiab thickening, thiab tuaj yeem txhim kho qhov adhesion thiab sag resistance ntawm slurry. Cov yam ntxwv xws li huab cua kub, kub thiab cua siab ceev yuav cuam tshuam rau volatili ...Nyeem ntxiv»
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1. Cov teeb meem tshwm sim hauv putty hmoov ceev kom qhuav: Qhov no feem ntau yog vim muaj cov kua qaub calcium hmoov ntxiv (ntau dhau, cov kua qaub calcium hmoov siv hauv cov mis putty tuaj yeem txo qis kom tsim nyog) muaj feem xyuam rau cov dej tuav ntawm fiber ntau, thiab nws kuj tseem cuam tshuam rau dr...Nyeem ntxiv»
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qhuav sai Qhov no feem ntau yog vim qhov sib ntxiv ntawm cov hmoov tshauv calcium hmoov (cov hmoov tshauv calcium hmoov siv hauv cov mis putty tuaj yeem txo kom tsim nyog) muaj feem xyuam rau cov dej tuav tus nqi ntawm hydroxypropyl methylcellulose, thiab tseem muaj feem xyuam rau cov dryness ntawm phab ntsa. Peeling ib ...Nyeem ntxiv»
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Hydroxypropyl methylcellulose yog ib qho uas tsis yog-ionic cellulose ether ua tiav los ntawm cov paj rwb refined los ntawm ntau cov tshuaj tiv thaiv. Nws yog ib qho tsis muaj ntxhiab tsw, tsis muaj tshuaj lom cov hmoov dawb uas yaj hauv dej thiab nthuav tawm Clear los yog me ntsis cloudy colloidal tov. Nws muaj cov yam ntxwv ntawm t...Nyeem ntxiv»
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Lub npe Suav ntawm HPMC yog hydroxypropyl methylcellulose. Nws yog non-ionic thiab feem ntau yog siv los ua cov dej tuav hauv cov tshuaj khib nyiab qhuav. Nws yog cov khoom siv dej ntau tshaj plaws nyob rau hauv mortar. Polysaccharide-based ether cov khoom tsim los ntawm alkalization thiab etherification. Nws tsis muaj ...Nyeem ntxiv»
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1. Cov teeb meem tshwm sim hauv putty hmoov qhuav sai Qhov no feem ntau cuam tshuam nrog cov hmoov tshauv calcium ntxiv (loj heev, cov hmoov tshauv calcium hmoov siv rau hauv cov mis putty tuaj yeem txo kom tsim nyog) thiab cov dej tuav tus nqi ntawm hydroxypropyl methylcellulose ( HPMC), thiab nws tseem yog ...Nyeem ntxiv»
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Redispersible latex hmoov yog cov hmoov dawb uas tau txais los ntawm cov tshuaj tsuag kom qhuav tshwj xeeb latex. Nws yog tsuas yog siv los ua ib qho tseem ceeb additive rau "dry-mixed mortar" thiab lwm yam qhuav mortars rau sab nrauv phab ntsa rwb thaiv tsev engineering siv cov ntaub ntawv. Ua tib zoo mloog cov hauv qab no peb ...Nyeem ntxiv»
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Hydroxypropyl methylcellulose feem ntau yog siv los ua ib qho dispersant hauv kev tsim cov polyvinyl chloride, thiab yog tus neeg sawv cev tseem ceeb rau kev npaj PVC los ntawm kev ncua polymerization. Nyob rau hauv cov txheej txheem ntawm kev tsim kho kev lag luam, nws yog tsuas yog siv nyob rau hauv mechanized siv xws li phab ntsa ...Nyeem ntxiv»
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Hloov kho cov khoom ntxiv xws li cov khoom sib xyaw ua ke, cov cellulose ethers, coagulation regulators, redispersible latex hmoov, air-entraining agents, thaum ntxov muaj zog cov neeg sawv cev, dej reducers, thiab lwm yam, uas yog ntxiv raws li qhov xav tau ntawm peb tes num, zoo heev txhim kho kev ua tau zoo. ntawm ready-mixed ...Nyeem ntxiv»
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Daim ntawv thov ntawm hydroxypropyl methylcellulose (HPMC) nyob rau hauv kev tsim kho mortar plastering mortar: Kev tuav dej siab tuaj yeem ua rau cov cement tag nrho hydrated, ua kom muaj zog ntawm daim ntawv cog lus, thiab tib lub sijhawm, nws tuaj yeem tsim nyog ua kom lub zog tensile thiab shear zog, zoo heev imp. .Nyeem ntxiv»
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(1) Kev txiav txim siab ntawm viscosity: Cov khoom qhuav tau npaj rau hauv cov kua dej nrog qhov hnyav ntawm 2 ° C, thiab ntsuas los ntawm NDJ-1 rotational viscometer; (2) Cov tsos ntawm cov khoom yog hmoov, thiab cov khoom tam sim no yog suffixed nrog "s". Yuav ua li cas siv hydroxyp...Nyeem ntxiv»
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Lub viscosity Performance index ntawm hydroxypropyl methylcellulose yog qhov ntsuas tseem ceeb heev. Lub viscosity tsis sawv cev rau purity. Lub viscosity ntawm cellulose HPMC nyob ntawm cov txheej txheem ntau lawm. Qhov sib txawv siv ib puag ncig yuav tsum xaiv cellulose HPMC nrog cov viscosities sib txawv, tsis yog qhov siab dua vi...Nyeem ntxiv»