Cellulose ether ke mofuta oa polymer ea semi-synthetic e phahameng ea molek'hule e seng ea ionic.E na le mefuta e 'meli ea lintho tse qhibilihang ka metsing le tse thehiloeng ho solvent.E na le litlamorao tse fapaneng liindastering tse fapaneng.Mohlala, lisebelisoa tsa moaho oa lik'hemik'hale, li na le litlamorao tse latelang tse kopaneng: ①Setsi sa ho boloka metsi ②Thickener ③Leveling ④Film-forming ⑤Binder;indastering ea PVC, ke emulsifier le dispersant;indastering ea meriana, ke setlamo le Hobane selulose e na le litlamorao tse fapaneng tse kopaneng, e boetse e sebelisoa haholo.Ka tlase ke tla shebana le ts'ebeliso le ts'ebetso ea li-cellulose ethers ka thepa ea kaho e se nang tikoloho.
1. Ka pente ea latex
Ka indasteri ea pente ea latex, hydroxyethyl cellulose e lokela ho khethoa.Tlhaloso e akaretsang ea viscosity ke RT30000-50000cps, 'me tekanyo ea litšupiso hangata e ka ba 1.5 ‰-2‰.Mosebetsi o ka sehloohong oa hydroxyethyl ka pente ea latex ke ho teteaneng, ho thibela pigment gelation, ho thusa ho hasana ha pigment, latex le botsitso, 'me e ka ntlafatsa viscosity ea likarolo le ho kenya letsoho mosebetsing oa ho haha mohaho: Hydroxyethyl Ethyl 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 lipakeng tsa pH ea 2 le 12. Ho na le mekhoa e meraro e latelang:
I. Kenya tlhahiso ka kotloloho:
Mokhoa ona o lokela ho khetha mofuta oa hydroxyethyl cellulose - hydroxyethyl cellulose ka nako ea ho qhibiliha ho feta metsotso e 30.Mehato ea ts'ebeliso ke e latelang: ① Eketsa metsi a hloekileng ka har'a sets'oants'o se nang le moferefere o phahameng haholo ② Qala ho sisinyeha ka lebelo le tlase, 'me ka nako e ts'oanang u kenye sehlopha sa hydroxyethyl ka har'a tharollo butle-butle ③ Tsoela pele ho hlohlelletsa. ho fihlela lisebelisoa tsohle tsa granular li kolobisitsoe ④ Eketsa li-additives tse ling le li-alkaline, joalo-joalo ⑤ Hlohlelletsa ho fihlela lihlopha tsohle tsa hydroxyethyl li qhibiliha ka ho feletseng, Eketsa lisebelisoa tse ling ho risepe 'me u sila ho fihlela qetellong.
Ⅱ.E na le joala ba bo-mme:
Mokhoa ona o ka khetha mofuta oa hang-hang, 'me o na le phello ea selulose e khahlanong le hlobo.Molemo oa mokhoa ona ke hore o na le phetoho e kholoanyane 'me e ka kenyelletsoa ka ho toba penteng ea latex.Mokhoa oa ho lokisa o tšoana le mehato ea ①–④.
Ⅲ.Ho lokisa thepa e kang motoho:
Kaha li-solvents ke li-solvents tse fokolang (tse sa tsitsang) bakeng sa lihlopha tsa hydroxyethyl, li-porridges li ka etsoa ka metsoako ena.Litlhapi tse sebelisoang ka ho fetesisa ke lino tse entsoeng ka pente ea latex, joalo ka ethylene glycol, propylene glycol le li-former tsa lifilimi (joalo ka 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, ho senya lebota la putty
Hajoale, putty e sa silafatsang tikoloho e sa keneleng metsi le e thibelang ho hloeka metseng e mengata ea naha ea heso e 'nile ea nkoa e le ea bohlokoa ke batho.Lilemong tse 'maloa tse fetileng, hobane putty e entsoeng ka sekhomaretsi sa kaho e ntša khase ea formaldehyde mme e senya bophelo ba batho, sekhomaretsi sa kaho se entsoe ka polymer E lokiselitsoe ke karabelo ea acetal ea joala ea vinyl le formaldehyde.Ka hona, boitsebiso bona bo tlosoa butle-butle ke batho, 'me lihlahisoa tsa letoto la selulose ether li nkeloa sebaka ke boitsebiso bona, ke hore, nts'etsopele ea thepa ea mohaho e nang le tikoloho, selulose ke eona feela thepa hona joale.
Ka har'a putty e sa keneleng metsi, e arotsoe ka putty e ommeng le peista ea putty.Har'a mefuta ena e 'meli ea putty, methyl cellulose e fetotsoeng le hydroxypropyl methyl hangata li 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 calcium e bohlooho, calcium e khanyang, samente e tšoeu, joalo-joalo, 'me tse ling ke phofo ea gypsum, calcium e bohlooho, calcium e khanyang, joalo-joalo, kahoo mefuta e' meli e khetha litlhaloso tsa selulose, viscosity le ho kenella. .Chelete ea ho eketsa e ka ba 2 ‰ -3 ‰.
Ha ho hahoa putty ea lerako, hobane bokaholimo ba lebota bo na le monyetla o itseng oa metsi (sekhahla sa ho monya metsi ha lerako la litene ke 13%, 'me sekhahla sa ho monya metsi sa konkreite ke 3-5%), se kopantsoe le ho fetoha mouoane ha lefats'e le ka ntle, haeba putty e lahleheloa ke metsi ka potlako haholo, e tla lebisa ho mapetsong kapa ho tlosoa ha phofo le liketsahalo tse ling, ka hona ho fokolisa matla a putty.Ka lebaka lena, ho eketsa cellulose ether ho tla rarolla bothata bona.Empa boleng ba ho tlatsa, haholo-holo boleng ba lime calcium, le bona bo bohlokoa haholo.Hobane cellulose e na le viscosity e phahameng, e boetse e ntlafatsa ho chesoa ha putty, e qoba ho thekesela nakong ea kaho, 'me e phutholohile ebile e boloka mosebetsi ka mor'a ho hohola.
3. Seretse sa konkreite
Ka seretse sa konkreite, ho finyella matla a ho qetela, samente e tlameha ho ba le metsi ka ho feletseng, haholo-holo nakong ea kaho ea lehlabula, seretse sa konkreite se lahleheloa ke metsi ka potlako, 'me mehato ea hydration e feletseng e nkoa 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 hydroxypropyl methyl cellulose kapa methyl cellulose ho konkreite ea seretse.Tlhaloso ea viscosity e pakeng tsa 20000-60000cps, chelete ea tlatsetso e ka bang 2 ‰ -3 ‰, 'me sekhahla sa ho boloka metsi se ka eketseha ho feta 85%.Mokhoa oa ho sebelisa konkreite ea seretse ke ho kopanya phofo e omileng ka ho lekana ebe o eketsa metsi.
4. Ho lilasa samente, ho kopanya samente le samente 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.Hona joale, lihlahisoa tse tloaelehileng tsa gypsum ke gypsum ea gypsum, gypsum e tlamang, gypsum inlaying, sekhomaretsi sa lithaele joalo-joalo.
Stucco plaster ke mofuta oa thepa ea boleng bo holimo ea ho lila mabota le marulelo a kahare.Marako a entsoeng ka eona a ntle ebile a boreleli, a se ke a theola phofo, a tlamahane ka thata ho substrate, ha a na ho phunyeha le ho oa, 'me a na le ho hanyetsa mollo;bonding plaster ke mofuta oa samente.Mofuta o mocha oa sekhomaretsi sa boto ea leseli ke thepa e khomarelang e entsoeng ka gypsum e le lisebelisoa tsa motheo le ho eketsa 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 tatso, E na le litšoaneleho tsa matla a pele, ho beha ka potlako le maqhama a matla, 'me ke lisebelisoa tse tšehetsang kaho ea mapolanka a mohaho le li-blocks;
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 motlatsi oa cellulose ether o ekelitsoeng o phetha karolo ea bohlokoa.Kaha gypsum e arotsoe ka gypsum ea anhydrite le hemihydrate, gypsum e fapaneng e na le litlamorao tse fapaneng mabapi le ts'ebetso ea sehlahisoa, kahoo ho teteana, ho boloka metsi le ho lieha ho etsa qeto ea boleng ba thepa ea ho haha gypsum.Bothata bo tloaelehileng ba lisebelisoa tsena ke ho phunyeha ho se nang letho, 'me matla a pele a ke ke a finyelloa.Ho rarolla bothata bona, ke bothata ba ho khetha mofuta oa selulose le mokhoa oa ho sebelisa motsoako oa retarder.Tabeng ena, methyl kapa hydroxypropyl methyl 30000 hangata e khethoa.-60000cps, chelete ea tlatsetso e pakeng tsa 1.5 ‰–2 ‰, sepheo sa cellulose ke ho boloka metsi, ho lieha le ho tlotsa.
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 e sebelisa e le hore matla a pele a se ke a ameha.
Sekhahla sa ho boloka metsi ka kakaretso se bolela tahlehelo ea tlhaho ea metsi ha ho monya 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 tharollo e lokiselitsoe, ka kopo sheba mokhoa oa ho lokisa oa tharollo.
5. Seretse sa insulation
Seretse sa ho kenya mocheso ke mofuta o mocha oa lerako la ka hare la mocheso sebakeng se ka leboea.Ke thepa ea lerako e entsoeng ka thepa ea ho kenya mocheso oa mocheso, 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 mokhoa o omileng oa ho kopanya phofo.
6. Moemeli oa li-interface
Moemeli oa sebopeho ke HPNC20000cps, 'me sekhomaretsi sa lithaele se feta 60000cps.Moemeli oa li-interface, haholo-holo o sebelisoa e le motenya, o ka ntlafatsang matla a thata le ho hanyetsa motsu.
Nako ea poso: Nov-02-2022