Cellulose ether yog ib yam uas tsis yog-ionic semi-synthetic polymer, nrog dej solubility thiab solvability ntawm ob hom, nyob rau hauv txawv industries tshwm sim los ntawm lub luag hauj lwm yog txawv, xws li nyob rau hauv tshuaj siv tsev cov ntaub ntawv, nws muaj cov nram qab no cov nyhuv: ① dej tuav. tus neeg saib xyuas ② thickening agent ③ leveling ④ zaj duab xis tsim ⑤ binder; Hauv kev lag luam polyvinyl chloride, nws yog emulsifier, dispersant; Hauv kev lag luam kws tshuaj, nws yog ib hom kev sib khi thiab qeeb thiab tswj cov khoom siv pob txha, vim tias cellulose muaj ntau yam kev sib xyaw ua ke, yog li nws yog qhov siv ntau tshaj plaws. Ntawm no kuv tsom mus rau kev siv cellulose ether hauv kev tiv thaiv ib puag ncig cov ntaub ntawv hauv tsev thiab lub luag haujlwm.
1, latex xim
Hauv LATEX xim kab, xav xaiv hydroxyethyl cellulose, qhov dav dav ntawm viscosity yog RT30000- 50000CPS, tus nqi siv feem ntau yog 1.5‰-2‰ sab laug thiab sab xis. Lub luag haujlwm tseem ceeb ntawm hydroxyethyl hauv cov xim latex yog ua kom tuab, tiv thaiv cov xim gelation, pab txhawb cov xim dispersion, latex, stability, thiab tuaj yeem txhim kho cov viscosity ntawm cov khoom, pab txhawb kev ua haujlwm ntawm kev tsim kho: Hydroxyethyl cellulose yog yooj yim dua rau siv, txias. thiab dej kub tuaj yeem yaj, thiab tsis cuam tshuam los ntawm PH tus nqi, ntawm PH 2 thiab 12 tuaj yeem siv tau, siv peb txoj hauv kev hauv qab no:
I. Ncaj qha ntxiv:
Txoj kev no yuav tsum xaiv hom hydroxyethyl cellulose ncua sij hawm - yaj lub sij hawm ntau tshaj 30 feeb ntawm hydroxyethyl cellulose, nws cov kauj ruam siv yog raws li nram no: (1) kom muaj siab yuav tsum txiav lub blender thawv thiab kom muaj nuj nqis dej ntshiab (2) cov neeg pib qeeb stirring tsis tu ncua , nyob rau tib lub sij hawm maj mam ntxiv hydroxyethyl tusyees rau cov kev daws ntawm (3) txuas ntxiv do kom txog thaum tag nrho cov ntaub ntawv ntub dej (4) koom nrog lwm cov additives thiab alkaline additives (5) do kom txog thaum tag nrho cov hydroxyethyl yaj, ntxiv rau lwm yam khoom ntawm mis nyuj. , sib tsoo rau cov khoom tiav.
ⅱ, nruab nrog niam cawv tos:
Txoj kev no tuaj yeem xaiv hom instant, thiab muaj mildew - pov thawj nyhuv ntawm cellulose. Txoj kev no muaj qhov zoo ntawm qhov yooj yim dua, tuaj yeem ncaj qha ntxiv rau cov xim latex, kev npaj yog tib yam li ①- ④ cov kauj ruam.
ⅲ. Pab nrog porridge:
Vim tias cov kuab tshuaj organic tsis xav tau (insoluble) rau hydroxyethyl, lawv tuaj yeem siv los ua porridge. Feem ntau siv ORGANIC SOLVENT yog ORGANIC LIQUID hauv LATEX PAINT FORMULA, zoo li GLYCOL, PROPYLENE GLYCOL THIAB FILM-forming Agent (Zoo li DIETHYLENE glycol butyl acetic acid GREASE), CELLYROSEOLEXOFY PAUB DIRECTLY IN, tom qab koom TXOJ KEV HLUB TIAG TIAG TIAG TIAG TIAG TIAG LI OS.
2, scraping phab ntsa putty
Tam sim no, ib puag ncig tiv thaiv hom putty, uas yog dej-resistant thiab txhuam resistant nyob rau hauv feem ntau lub nroog, tau them nyiaj mloog mus los ntawm cov neeg hauv paus. Nyob rau hauv ob peb xyoos dhau los, vim hais tias cov putty ua los ntawm lub tsev kua nplaum radiates formaldehyde gas ua puas rau tib neeg noj qab haus huv, lub tsev kua nplaum yog ua los ntawm polyvinyl cawv thiab formaldehyde rau acetal cov tshuaj tiv thaiv. Yog li ntawd, cov khoom no maj mam tshem tawm los ntawm tib neeg, thiab kev hloov ntawm cov khoom no yog cellulose ether series cov khoom, uas yog hais tias, kev loj hlob ntawm ib puag ncig tiv thaiv tsev cov ntaub ntawv, cellulose yog tib yam khoom.
Nyob rau hauv cov dej resistant putty muab faib ua ob hom qhuav hmoov putty thiab putty paste, ob hom putty feem ntau xav xaiv hloov methyl cellulose thiab hydroxypropyl methyl ob hom, viscosity specifications feem ntau yog nyob ntawm 3000-60000CPS qhov tsim nyog tshaj plaws, lub ntsiab Lub luag haujlwm ntawm cellulose hauv putty yog dej tuav, sib txuas, lubrication, thiab lwm yam.
Vim hais tias cov mis putty ntawm txhua lub chaw tsim tshuaj paus tsis zoo ib yam, ib co yog grey calcium, lub teeb calcium, dawb cement, ib co yog gypsum hmoov, grey calcium, lub teeb calcium, yog li cov specification viscosity thiab infiltration ntawm cellulose ntawm ob cov qauv tsis zoo ib yam. , qhov dav dav ntawm kev ntxiv yog li 2‰-3‰.
Nyob rau hauv lub tshuab nqus tsev yuav dhuav nrog me nyuam kev tsim kho, lub hauv paus phab ntsa muaj tej yam absorbent (cib phab ntsa ntawm bibulous tus nqi yog 13%, lub pob zeb yog 3-5%), ua ke nrog evaporation ntawm lub ntiaj teb sab nraud, yog li ntawd yog dhuav nrog me nyuam. dej poob sai heev, yuav ua rau tawg lossis qhov tshwm sim xws li paj ntoos, kom lub zog ntawm putty tsis muaj zog, yog li ntawd, tom qab koom nrog cellulose ether yuav daws qhov teeb meem no. Tab sis qhov zoo ntawm cov muab tub lim, tshwj xeeb tshaj yog calcium tshauv, kuj tseem ceeb heev. Vim lub siab viscosity ntawm cellulose, nws kuj txhim khu lub floating quab yuam ntawm putty, thiab zam qhov tshwm sim ntawm ntws dai nyob rau hauv kev tsim kho, thiab nws yog ntau xis thiab zog-txuag tom qab scraping.
3, pob zeb mortar
Nyob rau hauv lub pob zeb mortar, tiag tiag ua tiav qhov kawg ntawm lub zog, yuav tsum ua kom cov cement hydration cov tshuaj tiv thaiv tag nrho, tshwj xeeb tshaj yog nyob rau lub caij ntuj sov, hauv kev tsim kho ntawm cov pob zeb mortar dej poob sai heev, kev ntsuas hydrated tag nrho ntawm kev kho dej, txoj kev no yog kev siv dej pov tseg thiab Kev ua haujlwm tsis yooj yim, qhov tseem ceeb tsuas yog nyob rau saum npoo, dej thiab dej tsis txaus, yog li txoj hauv kev los daws qhov teeb meem no, Hauv mortar pob zeb feem ntau xaiv ntxiv hydroxypropyl methyl cellulose lossis methyl cellulose, viscosity specifications ntawm 20000- 60000CPS, ntxiv Txog 2‰-3‰, dej tuav tus nqi tuaj yeem nce mus rau ntau dua 85%, kev siv tshuaj khib nyiab rau cov hmoov qhuav sib tov sib xyaw tom qab ntxiv dej tuaj yeem ua tau.
4, pleev xim gypsum, nplaum gypsum, caulking gypsum
Nrog rau kev loj hlob sai ntawm kev tsim kho kev lag luam, tib neeg qhov kev thov rau cov khoom siv hauv tsev tshiab kuj tseem nce ntxiv nyob rau ib hnub, vim tias cov neeg muaj kev paub txog kev tiv thaiv ib puag ncig thiab kev txhim kho txuas ntxiv ntawm kev tsim kho, cov khoom siv cementitious gypsum tau tsim sai heev. Tam sim no cov khoom siv gypsum feem ntau muaj stucco gypsum, bonded gypsum, embedded gypsum, pobzeb khi.
Stucco plaster yog ib hom zoo zoo sab hauv phab ntsa thiab ru tsev plastering cov ntaub ntawv, nrog rau nws los so lub phab ntsa yog ilv thiab du, tsis hmoov, muaj zog daim ntawv cog lus nrog lub hauv paus, tsis muaj cracking tawm tshwm sim, thiab muaj kev tiv thaiv hluav taws muaj nuj nqi; Adhesive gypsum yog ib hom tshiab ntawm lub tsev lub teeb phaj binder, yog gypsum raws li cov khoom siv hauv paus, ntxiv ntau yam additives thiab ua los ntawm cov khoom siv nplaum, nws yog tsim rau txhua yam ntawm cov khoom siv hauv tsev inorganic ntawm daim ntawv cog lus, tsis muaj tshuaj lom, tasteless, thaum ntxov lub zog ceev teeb tsa, kev sib txuas thiab lwm yam ntxwv, yog lub tsev board, thaiv kev tsim cov khoom txhawb nqa; Gypsum sealant yog qhov muab tub lim rau qhov sib txawv ntawm gypsum daim hlau thiab kho cov phab ntsa thiab cov kab nrib pleb.
Cov khoom gypsum no muaj ntau yam kev ua haujlwm sib txawv, ntxiv rau gypsum thiab lwm yam khoom siv ua lub luag haujlwm, qhov teeb meem tseem ceeb yog qhov ntxiv cellulose ether additives ua lub luag haujlwm tseem ceeb. Vim GESSO tau muab faib mus rau hauv CENT ntawm ANHYDROUS GESSO thiab HEMIHYDRATE GESSO, qhov sib txawv ntawm GESSO cuam tshuam yog qhov sib txawv rau qhov kev ua tau zoo ntawm cov khoom, yog li THICKENING, DEJ RETENTION, SETUIING NTAWM KEV TIV THAIV. Qhov teeb meem tshwm sim ntawm cov ntaub ntawv no yog npliag nruas tawg, qhov pib lub zog tsis yog los ntawm qhov teeb meem no, los daws qhov teeb meem no, yog xaiv hom cellulose thiab retarder compound siv cov teeb meem, hauv qhov kev hwm no, kev xaiv dav dav ntawm methyl lossis Hydroxypropyl methyl cellulose HPMC 30000-60000CPS, ntxiv ntawm 1.5‰–2‰, cellulose los ntawm kev tsom xam yog dej retarding lubrication.
Txawm li cas los xij, hauv cov txheej txheem no, nws tsis tuaj yeem cia siab rau cellulose ether li retarder, thiab citric acid retarder yuav tsum tau ntxiv rau qhov sib xyaw kom tsis txhob muaj zog thawj zaug.
Dej tuav tus nqi feem ntau yog hais txog tus nqi ntawm cov dej tsis zoo yam tsis muaj kev nqus dej sab nraud. Yog tias cov phab ntsa qhuav, lub hauv paus ntawm cov dej nqus dej thiab cov evaporation ntuj ua rau cov khoom poob dej sai heev, thiab tseem yuav muaj lub nruas khoob thiab qhov tshwm sim tawg.
Txoj kev siv no rau cov hmoov qhuav sib xyaw siv, yog tias cov tshuaj tuaj yeem xa mus rau txoj kev npaj tshuaj.
5. Thermal rwb thaiv tsev mortar
Thermal rwb thaiv tsev mortar yog ib qho tshiab phab ntsa rwb thaiv tsev khoom nyob rau sab qaum teb Tuam Tshoj. Nws yog cov khoom siv phab ntsa ua ke los ntawm cov khoom siv thermal rwb thaiv tsev, mortar thiab binder. Hauv cov khoom no, cellulose plays lub luag haujlwm tseem ceeb hauv kev sib txuas thiab ua kom muaj zog. Feem ntau, methyl cellulose nrog viscosity siab (txog 10000cps) raug xaiv, thiab qhov ntau npaum li cas ntawm 2‰ thiab 3‰. Txoj kev yog qhuav hmoov sib tov txoj kev.
6, tus neeg saib xyuas interface
Interface tus neeg sawv cev xaiv HPMC20000cps, pobzeb binder xaiv ntau tshaj 60000CPS, nyob rau hauv tus neeg saib xyuas interface tsom rau thickening tus neeg saib xyuas, tuaj yeem txhim kho lub zog tensile thiab xub zog thiab lwm yam teebmeem.
Post lub sij hawm: Aug-30-2022