Cellulose ether ke polymer eo e seng ea 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, 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. Ka mor'a moo, ke tla tsepamisa maikutlo ho sebelisoa le ho sebetsa ha cellulose ether ka thepa e sa tšoaneng ea mohaho.
ka pente ea latex
Ka indasteri ea pente ea latex, ho khetha selulose ea hydroxyethyl, tlhaloso e akaretsang ea viscosity e lekanang ke 30000-50000cps, e lumellanang le tlhaloso ea 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 kotloloho tlhahiso
Bakeng sa mokhoa ona, ho lokela ho khethoa mofuta o liehang oa hydroxyethyl cellulose, 'me selulose ea hydroxyethyl e nang le nako ea ho qhibiliha e fetang metsotso e 30 e sebelisoa. Mehato ke e latelang: ① Beha metsi a itseng a hloekileng ka har'a sets'oants'o se nang le mochini o thibelang ho kuta haholo ② Qala ho sisinyeha ka lebelo le tlase, 'me ka nako e ts'oanang eketsa butle-butle sehlopha sa hydroxyethyl ka har'a tharollo ka ho lekana ③ Tsoela pele ho sisinyeha ho fihlela. lisebelisoa tsohle tsa granular li kolobisitsoe ④ Kenya li-additives tse ling, joalo-joalo. lihlopha tsa hydroxyethyl li qhibiliha ka ho feletseng, ebe u Eketsa likarolo tse ling ka foromo ebe u sila ho fihlela sehlahisoa se felile.
2. Ho hlomelloa ka joala ba 'm'e bakeng sa ho sebelisoa hamorao
Mokhoa ona o ka khetha mofuta oa hang-hang, 'me o na le selulose 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.
3. E etse motoho bakeng sa ho sebelisoa hamorao
Kaha metsoako ea lintho tse hlapollang e le lihlapolli tse futsanehileng (tse sa tsitsang) bakeng sa hydroxyethyl, metsoako ena e ka sebelisoa ho etsa 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.
ka 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 felisoa 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 mohaho 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 le hydroxypropyl methyl li lokela ho khethoa. Tlhaloso ea viscosity hangata e pakeng tsa 40000-75000cps. Mesebetsi e ka sehloohong ea selulose 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 ‰.
Nako ea poso: Feb-04-2023