Cellulose ether ke polymer e phahameng ea molek'hule e seng ionic semi-synthetic, e qhibilihang ka metsing ebile e qhibiliha.E na le litlamorao tse fapaneng liindastering tse fapaneng.Mohlala, ka thepa ea kaho ea lik'hemik'hale, e na le litlamorao tse latelang tse kopaneng:
①Setsi sa ho boloka metsi ②Thickener ③Leveling thepa ④Thepa ea ho etsa filimi ⑤Binder
Ka indasteri ea polyvinyl chloride, ke emulsifier le dispersant;indastering ea meriana, ke setlamo le lisebelisoa tsa moralo o liehang le o laoloang, joalo-joalo Hobane selulose e na le liphello tse sa tšoaneng tse kopantsoeng, ts'ebeliso ea eona Tšimo e boetse e pharaletseng ka ho fetisisa.Lintlha tse latelang li shebane le ts'ebeliso le ts'ebetso ea cellulose ether linthong tse fapaneng tsa moaho.
(1) Ka pente ea latex:
Ka indasteri ea pente ea latex, ho khetha selulose ea hydroxyethyl, tlhaloso e akaretsang ea viscosity e lekanang ke RT30000-50000cps, e lumellanang le litlhaloso tsa HBR250, 'me tekanyo ea litšupiso hangata e ka ba 1.5 ‰-2 ‰.Mosebetsi o ka sehloohong oa hydroxyethyl ka pente ea latex ke ho teteana, ho thibela gelation ea pigment, ho thusa ho hasana ha pigment, botsitso ba latex, le ho eketsa viscosity ea likarolo, e leng se tlatsetsang ts'ebetsong ea ts'ebetso ea kaho: Hydroxyethyl cellulose e bonolo ho e sebelisa.E ka qhibiliha ka metsing a batang le metsing a chesang, 'me ha e amehe ke boleng ba pH.E ka sebelisoa ka mokhoa o sireletsehileng pakeng tsa PI ea 2 le 12. Mekhoa ea tšebeliso ke e latelang:
I. Eketsa ka ho toba tlhahiso: mokhoa ona o lokela ho khetha mofuta o liehang oa hydroxyethyl cellulose, le selulose ea hydroxyethyl e nang le nako ea ho qhibiliha ea metsotso e fetang 30, mehato ea eona ea tšebeliso ke e latelang:
① Lokisetsa palo ea metsi a hloekisitsoeng ka har'a sets'oants'o se nang le sehloeki se phahameng se kuta.
② Qala ho sisinyeha ka mokhoa o sa khaotseng ka lebelo le tlase, 'me ka nako e ts'oanang butle butle eketsa hydroxyethyl ho tharollo ka ho lekana.
③Tsoela pele ho sisinyeha ho fihlela lisebelisoa tsohle tsa granular li kolobisitsoe
④ Kenya li-additives tse ling le li-additives tsa mantlha, joalo-joalo.
⑤ Hlohlelletsa ho fihlela lihlopha tsohle tsa hydroxyethyl li qhibiliha ka ho feletseng, ebe u eketsa likarolo tse ling ka foromo, 'me u sila ho fihlela sehlahisoa se felile.
Ⅱ.E na le joala ba 'm'a bakeng sa tšebeliso ea morao-rao: Mokhoa ona o ka khetha hang-hang cellulose, e nang le phello ea anti-mildew.Molemo oa mokhoa ona ke hore o na le phetoho e kholoanyane 'me e ka kenyelletsoa ka ho toba ho pente ea latex.Mokhoa oa ho lokisa o tšoana le mehato ①-④.
Ⅲ.Lokisetsa motoho bakeng sa ho sebelisoa hamorao: Kaha lihlapolli tsa tlhaho ke lihlapolli tse fokolang (tse sa qhibiliheng) bakeng sa hydroxyethyl, metsoako ena e ka sebelisoa ho lokisa motoho.Litlhapi tse sebelisoang ka ho fetesisa ke lino tse entsoeng ka pente ea latex, joalo ka ethylene glycol, propylene glycol, le li-agent tse etsang lifilimi (tse kang diethylene glycol butyl acetate).Porridge hydroxyethyl cellulose e ka eketsoa ka kotloloho penteng.Tsoela pele ho hlohlelletsa ho fihlela e qhibiliha ka ho feletseng.
(2) Ka har'a lebota la scraping putty:
Hona joale, metseng e mengata ea naha ea heso, putty e thibelang metsi le e thibelang ho senya tikoloho e se e nkoa e le ea bohlokoa ke batho.E hlahisoa ke karabelo ea acetal ea joala ba vinyl le formaldehyde.Ka hona, boitsebiso bona bo tlosoa butle-butle ke batho, 'me lihlahisoa tsa letoto la cellulose ether li sebelisoa ho nkela thepa ena sebaka.Ka mantsoe a mang, bakeng sa nts'etsopele ea lisebelisoa tsa ho haha tse nang le tikoloho, cellulose hona joale ke eona feela thepa.
Ka putty e thibelang metsi, e arotsoe ka mefuta e 'meli: putty e ommeng le putty paste.Har'a mefuta ena e 'meli ea putty, methyl cellulose e fetotsoeng le hydroxypropyl methyl e lokela ho khethoa.Tlhaloso ea viscosity hangata e pakeng tsa 30000-60000cps.Mesebetsi e ka sehloohong ea selulose ka putty ke ho boloka metsi, ho kopanya le ho tlotsa.Kaha liforomo tsa putty tsa bahlahisi ba fapaneng li fapane, tse ling ke khalsiamo e bohlooho, khalsiamo e bobebe, samente e tšoeu, joalo-joalo, 'me tse ling ke phofo ea gypsum, calcium e bohlooho, khalsiamo e khanyang, joalo-joalo, kahoo litlhaloso, viscosity le ho kenella ha selulose liforomo tse peli le tsona li fapane.Chelete e ekelitsoeng e ka ba 2 ‰ -3 ‰.Ha ho hahoa putty ea lebota, kaha bokaholimo ba lebota bo na le tekanyo e itseng ea ho monya metsi (sekhahla sa ho monya metsi ha lerako la litene ke 13%, 'me sekhahla sa ho monya metsi sa konkreite ke 3-5%), hammoho le mouoane oa lefats'e le ka ntle, haeba putty e lahleheloa ke metsi ka potlako , E tla lebisa ho mapetsong kapa ho tlosoa ha phofo, e leng ho tla fokolisa matla a putty.Ka hona, ho eketsa cellulose ether ho tla rarolla bothata bona.Empa boleng ba ho tlatsa, haholo-holo boleng ba molora oa calcium le bona bo bohlokoa haholo.
Ka lebaka la viscosity e phahameng ea selulose, bonyatsi ba putty le bona boa ntlafatsoa, 'me ts'ebetso e sisinyehang nakong ea kaho e boetse e qojoa,' me e phutholohile ebile e boloka mosebetsi ka mor'a ho phunya.Ho bonolo haholoanyane ho eketsa cellulose ether ho putty ea phofo.Tlhahiso le tšebeliso ea eona li bonolo haholoanyane.Li-filler le li-additives li ka kopanngoa ka ho lekana ka phofo e omileng.
(3) Seretse sa konkreite:
Ka seretse sa konkreite, ho fihlela matla a ho qetela, samente e tlameha ho ba le metsi ka botlalo.Haholo-holo kahong ea lehlabula, seretse sa konkreite se lahleheloa ke metsi ka potlako, 'me litekanyo tsa hydration e feletseng li sebelisetsoa ho boloka le ho fafatsa metsi.Ho senyeha ha lisebelisoa le ts'ebetso e sa thabiseng, senotlolo ke hore metsi a holim'a metsi feela, 'me metsi a ka hare a ntse a sa fella, kahoo tharollo ea bothata bona ke ho eketsa lisebelisoa tse robeli tse bolokang metsi ho konkreite ea seretse, ka kakaretso khetha hydroxypropyl methyl. kapa methyl Cellulose, tlhaloso ea viscosity e pakeng tsa 20000-60000cps, 'me chelete ea tlatsetso ke 2% -3%.Sekhahla sa ho boloka metsi se ka eketsoa ho feta 85%.Mokhoa oa ho sebelisoa ka konkreite ea seretse ke ho kopanya phofo e omileng ka mokhoa o ts'oanang le ho e tšela ka metsing.
(4) Ho rala gypsum, gypsum e tlanngoeng, gypsum ea caulking:
Ka tsoelo-pele e potlakileng ea indasteri ea kaho, tlhokahalo ea batho ea thepa e ncha ea mohaho le eona e ntse e eketseha letsatsi le letsatsi.Ka lebaka la keketseho ea tlhokomeliso ea batho mabapi le ts'ireletso ea tikoloho le ntlafatso e tsoelang pele ea katleho ea kaho, lihlahisoa tsa gypsum tsa samente li tsoetse pele ka potlako.Hajoale, lihlahisoa tse atileng haholo tsa gypsum ke gypsum ea ho pola, gypsum e tlanngoeng, gypsum e kentsoeng, le sekhomaretsi sa lithaele.Plastering gypsum ke thepa ea boleng bo holimo ea ho lira bakeng sa marako a ka hare le siling.Lerako le manehiloeng ka eona le ntle ebile le boreleli.Sekhomaretsi se secha sa boto ea mabone ke thepa e khomarelang e entsoeng ka gypsum e le lisebelisoa tsa motheo le li-additives tse fapaneng.E loketse ho kopanya pakeng tsa lisebelisoa tse sa tšoaneng tsa lerako la mohaho.Ha e na chefo, ha e na monko o monate, matla a pele le ho beha ka potlako, ho tlamahanngoa ho matla le litšobotsi tse ling, ke lisebelisoa tse tšehetsang mapolanka a mohaho le mohaho oa li-block;gypsum caulking agent ke ho tlatsa lekhalo pakeng tsa liboto tsa gypsum le ho lokisa marako le mapetsong.
Lihlahisoa tsena tsa gypsum li na le letoto la mesebetsi e fapaneng.Ntle le karolo ea gypsum le li-fillers tse amanang le tsona, taba ea bohlokoa ke hore li-additives tse ekelitsoeng tsa cellulose ether li bapala karolo e ka sehloohong.Kaha gypsum e arotsoe ka gypsum ea anhydrous le gypsum ea hemihydrate, gypsum e fapaneng e na le liphello tse sa tšoaneng mosebetsing oa sehlahisoa, kahoo ho teteana, ho boloka metsi le ho lieha ho etsa qeto ea boleng ba thepa ea mohaho oa gypsum.Bothata bo tloaelehileng ba lisebelisoa tsena ke ho koala le ho phunyeha, 'me matla a pele a ke ke a finyelloa.Ho rarolla bothata bona, ke ho khetha mofuta oa selulose le mokhoa oa tšebeliso ea motsoako oa retarder.Tabeng ena, methyl kapa hydroxypropyl methyl 30000 hangata e khethoa.-60000cps, chelete ea tlatsetso ke 1.5% -2%.Har'a tsona, selulose e shebana le ho boloka metsi le ho chechisa lubrication.Leha ho le joalo, ho ke ke ha khoneha ho itšetleha ka cellulose ether e le retarder, 'me hoa hlokahala ho eketsa retarder ea citric acid ho kopanya le ho sebelisa ntle le ho ama matla a pele.
Ho boloka metsi ka kakaretso ho bolela hore na metsi a tla lahleha hakae ka tlhaho ntle le ho monngoa ha metsi ka ntle.Haeba lerako le omme haholo, ho kenngoa ha metsi le mouoane oa tlhaho holim'a metsi ho tla etsa hore thepa e lahleheloe ke metsi ka potlako, 'me ho tla ba le sekoti le ho phunyeha.Mokhoa ona oa tšebeliso o kopantsoe le phofo e omileng.Haeba u lokisetsa tharollo, ka kopo sheba mokhoa oa ho lokisetsa tharollo.
(5) Seretse se sireletsang mocheso
Seretse sa insulation ke mofuta o mocha oa thepa ea ka hare ea lebota sebakeng se ka leboea.Ke thepa ea lebota e entsoeng ka thepa ea ho kenya letsoho, seretse le binder.Tabeng ena, cellulose e phetha karolo ea bohlokoa ho tlamahaneng le ho eketsa matla.Ka kakaretso khetha methyl cellulose e nang le viscosity e phahameng (hoo e ka bang 10000eps), tekanyo e tloaelehileng e pakeng tsa 2 ‰ -3 ‰), 'me mokhoa oa ho sebelisa ke ho kopanya phofo e omileng.
(6) moemeli oa sebopeho
Khetha HPNC 20000cps bakeng sa moemeli oa sebopeho, khetha 60000cps kapa ho feta bakeng sa sekhomaretsi sa lithaele, 'me u tsepamise maikutlo ho sekontiri se seholo sa sehokelo, se ka ntlafatsang matla a thata le matla a ho thibela motsu.E sebelisoa e le ntho e bolokang metsi ho tlamahaneng ha lithaele ho thibela lithaele ho tsoa metsi ka potlako le ho oa.
Nako ea poso: Feb-16-2023