Cellulose ether yog ib hom ntawm cov tsis-ionic semi-synthetic high molecular polymular. Nws muaj ob hom dej-soluble thiab cov kuab tshuaj-based cov khoom. Nws muaj cov teebmeem sib txawv hauv kev lag luam sib txawv. Piv txwv li, hauv cov khoom siv hauv tsev, nws muaj cov khoom siv sib xyaw hauv qab no: ①water-tuav tus neeg sawv cev ②leveling ③fileling ⑤film-sib sau; Hauv kev lag luam PVC, nws yog emulsifier thiab dispersant; Hauv kev lag luam kws tshuaj, nws yog ib phau ntawv thiab vim tias cellulose muaj ntau yam kev sib xyaw, nws tseem yog siv dav tshaj plaws. Hauv qab no Kuv yuav tsom rau kev siv thiab ua haujlwm ntawm cellulose muaj kev pab cuam tus neeg hauv tsev nyob rau ib puag ncig lub tsev.
1. Hauv cov xim looj xwb
Nyob rau hauv lub latex xim kev lag luam, hydroxyethyl cellulose yuav tsum tau xaiv. Qhov kev qhia tshwj xeeb ntawm viscosity yog RT3000000-50000CPS, thiab cov kev siv tshuaj ntau npaum li cas txog 1.5 ‰ -2 ‰. Lub ntsiab muaj nuj nqi ntawm hydroxyethyl hauv looj xim yog txhawm rau ua kom muaj kev ua haujlwm ntawm cov khoom siv viscation, thiab muaj peev xwm txhim kho kom tsis txhob ua haujlwm ntawm cov khoom siv viscation, thiab muaj peev xwm txhim kho kom tsis txhob ua haujlwm ntawm cov roj ntsha Nws tuaj yeem raug ntiab tawm hauv dej txias thiab dej kub, thiab nws tsis cuam tshuam los ntawm tus nqi PH. Nws tuaj yeem siv tau ntawm tus nqi ntawm 2 thiab 12. Muaj peb txoj kev hauv qab no:
I. Ntxiv rau hauv ntau lawm:
Hom no yuav tsum xaiv hydroxyethyl cellulose qeeb hom - hydroxyethyl cellulose nrog lub sijhawm sib cais ntawm ntau tshaj 30 feeb. Kev siv cov kauj ruam muaj raws li hauv qab no: ① Ntxiv ib qho dej ntshiab rau lub thawv loj thiab tusyees ntxiv cov pab pawg hydroxyethyl rau hauv kev daws ③ txuas ntxiv nplawm Kom txog thaum txhua cov ntaub ntawv granular yog soaked los ntawm lwm pab ntxiv thiab alkaline ntxiv, thiab lwm yam ntawm cov khoom xyaw thiab zom kom txog thaum tiav.
Ⅱ. Nruab nrog niam cawv:
Hom no tuaj yeem xaiv hom tseem ceeb, thiab muaj cov txiaj ntsig ntawm kev tawm tsam cellulose mildew. Qhov zoo dua ntawm txoj kev no yog tias nws tau muaj kev yoog tau zoo dua thiab tuaj yeem txuas ncaj qha ntxiv rau cov xim huv. Txoj kev npaj npaj yog tib yam li cov kauj ruam ntawm ①-④.
Ⅲ. Rau kev npaj porridge-zoo li cov khoom:
Txij li thaum Organic cov kuab tshuaj yog cov kuab tshuaj tsis zoo (insoluble) rau hydroxyethyl pawg, porridource tuaj yeem tsim nrog cov kuab tshuaj no. Feem ntau cov organic cov kuab tshuaj yog cov kua ethin ua kua, xws li cov xim av zoo nkauj (xws li diethylene glyyl acetate). Cov porridge hydrothethyl cellulose tuaj yeem txuas ncaj qha ntxiv rau cov xim. Txuas ntxiv mus rau kom txog thaum yaj tag.
2, Scraping Phab Ntsa Putty
Ntawm tam sim no, ib puag ncig phooj ywg uas yog dej-resistant thiab txhuam-resistant nyob rau hauv feem ntau cov nroog hauv kuv lub tebchaws tau muaj txiaj ntsig los ntawm tib neeg. Hauv ob peb xyoos dhau los, vim tias cov zaub mov ua los ntawm cov nplaum siv nplaum ua cov tshuaj polymer nws tau npaj los ntawm cov tshuaj tsw qab ntawm vinyl thiab formaldehyde. Yog li ntawd, cov ntaub ntawv no maj mam muab tshem tawm los ntawm cov neeg, thiab cov cellulose cov khoom siv tau hloov los ntawm cov ntaub ntawv hauv tsev, cellulose yog cov khoom siv nyob rau tam sim no.
Nyob rau hauv cov dej-resistant putty, nws tau muab faib ua cov hmoov qhuav putty thiab muab tso tseg. Ntawm cov ob hom putty, hloov methyl cellulose thiab hydroxypropyl yog feem ntau xaiv. Lub viscosity specification feem ntau yog ntawm 30000-6000000CPS. Lub luag haujlwm tseem ceeb ntawm cellulose hauv putty yog dej khaws cia, kev sib koom tes thiab lubrication.
Txij li cov qauv putty ntawm ntau cov tuam txhab sib txawv, qee qhov grey calcium, dawb xis mas, yog li ob qho qauv xaiv cellulose specifications, viscosity thiab kev nkag siab Cov. Qhov nyiaj ntxiv yog kwv yees li 2 ‰ -3 ‰.
Nyob rau hauv kev tsim kho ntawm scraping phab ntsa plhaw putty, vim hais tias ntawm lub hauv paus dos muaj qee qhov kev nqus dej yog 13%, thiab dej nqus tus nqi ntawm cov pob zeb yog 3-5%), txuas nrog Kev evaporation ntawm lub ntiaj teb sab nraud, yog tias lub putty poob nrawm nrawm, nws yuav ua rau tawg lossis hmoov tshem tawm thiab lwm yam tshwm sim tsis muaj zog ntawm lub zog. Vim li no, ntxiv cellulose ether yuav daws qhov teeb meem no. Tab sis qhov zoo ntawm cov muab tub lim, tshwj xeeb tshaj yog qhov zoo ntawm cov kua txiv qaub, kuj tseem yog qhov tseem ceeb heev. Vim tias cellulose muaj lub viscosity siab, nws tseem ua tau lub buoyancy ntawm lub putty, zam kev sagging thaum lub sijhawm tsim kho, thiab muaj kev nyob siab dua thiab ua haujlwm-txuag tom qab scraping.
3. Kev Tshuaj Khib Nyuj
Hauv cov khaub noom tshuaj khib, kom ua tiav qhov kawg, cov cement yuav tsum tau ua kom huv si, tshwj xeeb yog nyob rau hauv cov dej khov kho kom ceev nrawm, thiab kev ntsuas ntawm cov dej ua tiav tau los tswj thiab ua kom dej. Khib ntawm cov peev txheej thiab tsis yooj yim ua haujlwm, tus yuam sij yog tseem tsis tiav, thiab kev daws teeb meem rau cov teeb meem hydroxyylrope lossis methyl cellulose rau lub tshuaj khib. Lub viscosity specification yog nruab nrab ntawm xyoo 20000-6000000CPS, qhov nyiaj ntxiv yog li 2 ‰ -3 ‰, thiab dej rov qab los yuav nce ntxiv rau ntau dua 85%. Kev siv txoj kev cug ua hluav taws xob qhob yog kom sib tov cov hmoov qhuav hmoov thiab tom qab ntawd ntxiv dej.
4. Hauv plastering plaster, tsev sib xyaw plaster thiab caulking plaster
Nrog rau kev txhim kho sai ntawm kev tsim kho kev tsim kho, cov neeg xav tau rau cov ntaub ntawv hauv tsev tshiab kuj tseem nce hnub ib hnub. Vim tias qhov nce ntawm tib neeg qhov kev tiv thaiv ntawm ib puag ncig kev tiv thaiv ib puag ncig thiab kev txhim kho txuas ntxiv ntawm kev tsim kho, nyem cov khoom noj gypsum tau tsim sai. Ntawm tam sim no, feem ntau cov gypsum feem ntau yog plastering gypsum, dending gypsum, inlaying gypsum, pobzeb nplaum thiab lwm yam.
Stucco Plaster yog ib hom ntawm cov khoom siv zoo plastering rau sab hauv phab ntsa thiab ru tsev. Phab ntsa plastered nrog nws yog qhov zoo thiab du, tsis txhob poob hmoov, tsis muaj kev tawg thiab poob, thiab muaj hluav taws kub tawm tsam; Tsevneeg Khuv Plaster yog ib hom plaster. Ib hom kev txhim kho lub teeb tsa nplaum yog cov khoom nplaum ua los ntawm gypsum raws li cov khoom siv hauv paus thiab ntxiv ntau yam ntxiv. Nws yog qhov tsim nyog rau kev sib raug zoo ntawm ntau cov khoom siv phab ntsa hauv tsev. Nws yog tsis-lom, tasteless, nws muaj cov yam ntxwv ntawm lub zog thaum ntxov, kev sib raug zoo, thiab yog cov khoom siv txhawb nqa rau kev tsim kho cov cam thiab thaiv;
Cov khoom lag luam gypsum no muaj cov haujlwm sib txawv, ntxiv rau lub luag haujlwm ntawm Gypsum thiab lwm yam kev cuam tshuam yog tias kev tshaj lij ether etle saib lub luag haujlwm. Txij li gypsum tau muab faib ua tej yam thiab cov gypsum sib txawv, ua kom cov dej sib txawv, rov qab txiav txim siab qhov zoo ntawm gypsum cov ntaub ntawv hauv tsev. Cov teeb meem tshwm sim ntawm cov ntaub ntawv no yog hollow tawg, thiab thawj zaug muaj zog tsis tau mus txog. Txhawm rau kom daws tau qhov teeb meem no, nws yog qhov teeb meem ntawm kev xaiv hom cellulose thiab cov qauv siv sib xyaw ua ke ntawm Retarder. Hauv qhov no, methyl lossis hydroxypropyl pthyl 30000 feem ntau xaiv. -60000CPS, qhov nyiaj ntxiv yog nruab nrab ntawm 1.5 ‰ -2 ‰, lub tsom iav ntawm cellulose yog dej khaws cia, rov qab thiab lubrication.
Txawm li cas los xij, nws tsis muaj peev xwm kom cia siab rau ntawm cellulose ntawm cellulose ntawm retricer, thiab nws yog ib qho tsim nyog los sib tov thiab siv nws kom thawj lub zog yuav tsis cuam tshuam.
Dej khaws cia feem ntau yog hais txog lub ntuj poob ntawm cov dej nyob rau hauv qhov tsis muaj dej nqus dej. Yog tias lub phab ntsa yog qhuav heev, kev nqus dej thiab ntuj evaporation ntawm cov khoom saum npoo yuav ua rau poob dej sai sai, thiab hollowing thiab tawg yuav tshwm sim.
Hom no ntawm kev siv yog tov nrog hmoov qhuav. Yog tias kev daws teeb meem tau npaj, thov saib mus rau txoj kev npaj ntawm kev daws teeb meem.
5. Kev xaiv tsa
Thermal routgeuring cug yog ib hom tshiab ntawm phab ntsa hluav taws xob sab hauv thermal rwb thaiv tsev cov khoom nyob rau sab qaum teb cheeb tsam. Nws yog lub phab ntsa cov khoom siv los ntawm cov khoom siv hluav taws xob rwb thaiv tsev, tshuaj khib thiab khaws cia. Hauv cov khoom siv no, cellulose ua lub luag haujlwm tseem ceeb hauv kev sib raug zoo thiab ua kom muaj zog. Feem ntau xaiv methyl cellulose nrog cov viscosity siab (txog 10000EPs), cov tshuaj ntau), thiab siv txoj kev siv ntub dej yog cov hmoov av.
6. Tus neeg sawv cev
Tus neeg sawv cev interface yog HPNC20000CPS, thiab cov nplais nplaum nplaum yog ntau tshaj 60000CPS. Nyob rau hauv tus neeg sawv cev sab hauv, nws yog tsuas yog siv los ua cov tuab dua, uas tuaj yeem txhim kho lub zog tensile thiab cov xub tsis kam.
Lub sij hawm ncua: Nov-02-2022