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Nyob rau xyoo tas los no, kev lag luam kev tsim kho tau pom kev hloov pauv loj mus rau kev siv cov pob zeb ua haujlwm siab kom tau raws li qhov xav tau ntawm cov haujlwm tsim kho vaj tse niaj hnub no. Ib qho ntawm cov khoom xyaw tseem ceeb ntawm cov pob zeb ua haujlwm siab yog cov khoom sib txuas, uas khi cov khoom sib xyaw ua ke ...Nyeem ntxiv»
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Mortar yog ib yam khoom siv tseem ceeb hauv kev tsim kho uas siv rau hauv cov haujlwm loj thiab me. Feem ntau nws muaj cov cement, xuab zeb thiab dej nrog rau lwm yam khoom ntxiv. Txawm li cas los xij, nrog kev nce qib ntawm thev naus laus zis, ntau yam khoom ntxiv tau raug coj los txhim kho lub zog sib txuas, kev ywj pheej thiab ...Nyeem ntxiv»
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Hydroxypropyl methylcellulose (HPMC) yog ib qho polymer ntuj uas feem ntau siv rau hauv ntau yam lag luam suav nrog zaub mov, tshuaj thiab kev tsim kho. Hauv kev lag luam coatings, HPMC yog suav hais tias yog ib qho khoom xyaw uas xav tau vim nws cov khoom tshwj xeeb, ua rau nws yog ib qho khoom xyaw tseem ceeb hauv kev ua haujlwm siab ...Nyeem ntxiv»
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Cellulose ethers yog cov khoom siv tuab siv dav hauv kev lag luam txheej txheej dej. Nws yog ua los ntawm cellulose, ib qho polymer ntuj pom nyob rau hauv cov phab ntsa cell ntawm cov nroj tsuag. Cellulose ethers yog siv los txhim kho cov khoom ntawm cov txheej txheej dej, ua rau lawv yooj yim dua rau kev thov thiab ruaj khov dua. Cov txheej txheej dej...Nyeem ntxiv»
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Cov gypsum desulfurized yog ib yam khoom seem ntawm cov txheej txheem desulfurization roj flue ntawm cov chaw tsim hluav taws xob thee lossis lwm cov chaw tsim hluav taws xob uas siv cov roj sulfur. Vim nws tiv taus hluav taws kub, tiv taus cua sov thiab tiv taus dej noo, nws tau siv dav hauv kev lag luam kev tsim kho ua cov lev tsev...Nyeem ntxiv»
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Ua ib yam khoom siv ntau yam thiab zoo rau ib puag ncig, cellulose ether tau siv dav hauv ntau qhov chaw xws li kev lag luam tsim kho, kev lag luam zaub mov, kev lag luam tshuaj, thiab kev lag luam textile. Ntawm lawv, cellulose ether tau nyiam ntau dua thiab ntau dua rau nws daim ntawv thov...Nyeem ntxiv»
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Polyanionic cellulose (PAC) yog ib qho polymer uas yaj tau hauv dej uas siv dav hauv kev lag luam roj av ua cov kua ntxiv rau hauv qhov drilling. Nws yog ib qho polyanionic derivative ntawm cellulose, synthesized los ntawm kev hloov kho tshuaj ntawm cellulose nrog carboxymethyl. PAC muaj cov khoom zoo heev xws li kev yaj dej siab,...Nyeem ntxiv»
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Tau ntau pua xyoo, cov masonry thiab plaster mortars tau siv los tsim cov qauv zoo nkauj thiab ruaj khov. Cov mortars no yog ua los ntawm kev sib xyaw ntawm cement, xuab zeb, dej thiab lwm yam khoom ntxiv. Hydroxypropyl methylcellulose (HPMC) yog ib qho khoom ntxiv zoo li no. HPMC, tseem hu ua hypromellose, yog ib qho cellulose hloov kho ...Nyeem ntxiv»
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Cov nplaum rau pobzeb feem ntau siv rau hauv kev lag luam kev tsim kho kom muaj kev sib txuas ruaj khov thiab kav ntev ntawm cov pobzeb thiab cov khoom siv hauv pem teb. Txawm li cas los xij, kev ua kom muaj kev sib txuas ruaj khov thiab kav ntev ntawm cov pobzeb thiab cov khoom siv hauv pem teb tuaj yeem nyuaj, tshwj xeeb tshaj yog tias qhov chaw ntawm cov khoom siv hauv pem teb tsis sib npaug, muaj kuab paug lossis puas tsuaj...Nyeem ntxiv»
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Cov tshuaj sib xyaw ua ke uas ua rau nws tus kheej sib npaug yog cov khoom siv hauv pem teb uas siv los tsim kom muaj qhov chaw tiaj tus thiab sib npaug uas siv los tso cov vuas lossis lwm yam khoom siv hauv pem teb. Cov tshuaj sib xyaw no yog ua los ntawm ntau yam khoom siv, tab sis ib qho tseem ceeb tshaj plaws yog HPMC (hydroxypropyl methylcellulose). HPMC ua lub luag haujlwm tseem ceeb hauv kev ua kom zoo tshaj plaws...Nyeem ntxiv»
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Gypsum yog ib yam khoom siv hauv tsev uas siv rau kev kho kom zoo nkauj sab hauv thiab sab nraud phab ntsa. Nws nrov vim nws ruaj khov, zoo nkauj, thiab tiv taus hluav taws. Txawm li cas los xij, txawm tias muaj cov txiaj ntsig no los xij, plaster tuaj yeem tawg thaum lub sijhawm dhau mus, uas tuaj yeem ua rau nws puas tsuaj thiab cuam tshuam rau nws qhov tsos. Plaster crack...Nyeem ntxiv»
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Cov xim pleev ib txwm yog ib feem tseem ceeb ntawm ntau yam lag luam, txij li kev tsim kho thiab tsheb mus rau kev ntim khoom thiab rooj tog. Cov xim pleev ua haujlwm ntau yam xws li kev kho kom zoo nkauj, kev tiv thaiv, kev tiv thaiv xeb thiab kev khaws cia. Raws li qhov xav tau zoo, ruaj khov thiab zoo rau ib puag ncig ...Nyeem ntxiv»