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Ethyl cellulose (Ethyl cellulose ether), tseem hu ua cellulose ether, hu ua EC. Cov qauv molecular thiab cov qauv qauv: [C6H7O2 (OC2H5) 3] n. 1. Siv Cov khoom no muaj cov haujlwm ntawm kev sib txuas, kev sau, kev tsim zaj duab xis, thiab lwm yam. Nws yog siv rau cov yas hluavtaws, txheej, roj hmab hauv qab ...Nyeem ntxiv»
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(1) Cov teeb meem kev siv tshuab Cov neeg siv khoom qis dua ntawm cellulose ether muaj cov kev xav tau siab dua ntawm qhov zoo thiab kev ruaj khov ntawm cellulose ether. Kev tswj hwm kev siv tshuab zoo yog qhov teeb meem kev siv tshuab tseem ceeb hauv kev lag luam cellulose ether. Cov chaw tsim khoom yuav tsum paub txog kev tsim qauv sib phim ntawm co...Nyeem ntxiv»
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Piav Qhia: Cov khoom noj uas muaj cov cellulose ethers Kev Tshawb Fawb: Qhov kev tsim kho tshiab no hais txog cov khoom noj uas muaj cellulose ethers. Cov txheej txheem keeb kwm yav dhau los: Nws tau paub ntev los lawm tias yuav siv cov cellulose ethers rau hauv cov khoom noj, tshwj xeeb tshaj yog cov khoom noj ua tiav, ...Nyeem ntxiv»
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1. Cov yam ntxwv zoo (1) Kev txhawb nqa txoj cai Raws li cov khoom siv tshiab bio-based thiab cov khoom siv ntsuab thiab tus phooj ywg ib puag ncig, kev siv dav dav ntawm cellulose ether hauv kev lag luam yog qhov kev txhim kho ntawm kev tsim kom muaj lub zej zog ib puag ncig thiab txuag cov peev txheej yav tom ntej. Lub d...Nyeem ntxiv»
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Putty hmoov yog feem ntau yog ua los ntawm cov yeeb yaj kiab-tsim cov tshuaj (cov ntaub ntawv sib txuas), cov khoom sau, cov neeg sawv cev dej-thickeners, defoamers, thiab lwm yam. Cov khoom siv organic tshuaj raw hauv putty hmoov feem ntau suav nrog: cellulose, pregelatinized starch, starch ether, polyvinyl cawv, dispersible latex p ...Nyeem ntxiv»
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1. Kev siv hydroxypropyl methylcellulose (HPMC) tseem ceeb yog dab tsi? Hydroxypropyl methylcellulose siv dav hauv cov ntaub ntawv siv hauv kev tsim kho, cov tshuaj pleev xim, cov khoom siv ua los ntawm av nplaum, tshuaj, khoom noj, textiles, kev ua liaj ua teb, tshuaj pleev ib ce, luam yeeb thiab lwm yam lag luam. Hydroxypropyl methylcellulose tuaj yeem ...Nyeem ntxiv»
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Cov khoom no yog 2-hydroxypropyl ether methyl cellulose, uas yog cov khoom semi-synthetic. Nws tuaj yeem tsim los ntawm ob txoj kev: (1) Tom qab kho cov paj rwb linters lossis cov ntoo pulp fibers nrog caustic soda, lawv tau sib xyaw nrog chloromethane thiab epoxy Propane reacts, refined thiab pulverized kom tau nws; (2) ...Nyeem ntxiv»
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Hydroxypropyl methylcellulose feem ntau siv rau hauv ntau yam lag luam. Txawm hais tias muaj ntau tus neeg tsis nkag siab nws zoo heev, nws cuam tshuam rau ntau yam lag luam. Hauv cov txheej txheem kev tsim kho ntawm kev lag luam kev tsim kho, nws feem ntau yog siv rau kev tsim phab ntsa thiab kho kom zoo nkauj stucco, Caulking thiab lwm yam ...Nyeem ntxiv»
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Hydroxypropyl methylcellulose-masonry mortar Ua kom muaj zog lo rau ntawm qhov chaw ntawm lub masonry, thiab tuaj yeem txhim kho qhov tuav dej, yog li lub zog ntawm cov mortar tuaj yeem txhim kho. Txhim kho lubricity thiab plasticity los txhim kho kev ua haujlwm ntawm kev tsim kho, yooj yim dua rau kev siv, txuag lub sijhawm, thiab txhim kho ...Nyeem ntxiv»
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Cellulose ether yog ib qho non-ionic semi-synthetic high molecular polymer, uas yog dej-soluble thiab solvent-soluble. Nws muaj cov teebmeem sib txawv hauv ntau yam lag luam. Piv txwv li, hauv cov ntaub ntawv siv tshuaj lom neeg, nws muaj cov teebmeem sib xyaw ua ke hauv qab no: ① Tus neeg sawv cev khaws dej, ②Thickener, ③Leveling ...Nyeem ntxiv»
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Ua ib qho tshuaj sib xyaw ua ke zoo, cov khoom siv hauv tsev qib cellulose ether tuaj yeem txhim kho qhov khaws dej thiab cov khoom tuab ntawm cov khoom siv hauv tsev, thiab txhim kho kev ua haujlwm ntawm kev tsim kho. Nws yog dav siv los txhim kho thiab ua kom zoo dua suav nrog masonry mortar, thermal insulation mortar, til...Nyeem ntxiv»
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Cellulose ether muaj kev khaws dej zoo heev, uas tuaj yeem tiv thaiv cov dej noo hauv cov mortar ntub kom tsis txhob qhuav ua ntej lossis raug nqus los ntawm cov txheej hauv paus, thiab xyuas kom meej tias cov cement tau hydrated tag nrho, yog li thaum kawg xyuas kom meej cov khoom siv kho tshuab ntawm cov mortar, uas yog tshwj xeeb tshaj yog ben ...Nyeem ntxiv»