PVA Powder e sebelisetsoa eng?

Polyvinyl alcohol (PVA) phofo, eo hape e tsejoang ka hore ke PVA resin, ke polymer e feto-fetohang e fumanang lits'ebetso ho liindasteri tse fapaneng ka lebaka la thepa ea eona e ikhethang. Mona ke lisebelisoa tse ling tse tloaelehileng tsa phofo ea PVA:

1. Lisebelisoa tsa Sekhomaretsi:

PVA phofo e sebelisoa haholo e le motsoako oa bohlokoa ha ho etsoa li-adhesives le glues. Ha e qhibiliha ka metsing, PVA e etsa tharollo ea sekhomaretsi e hlakileng, e se nang 'mala e nang le matla a maqhama a babatsehang le ho khomarela likaroloana tse fapa-fapaneng tse kang lehong, pampiri, masela le lisebelisoa tsa porous. Likhomaretsi tsa PVA li atisa ho sebelisoa ha ho etsoa mapolanka, ho paka lipampiri, ho tlama libuka, le lisebelisoa tse ling tsa ho kopanya.

2. Tekanyo ea Lesela le ho Qetella:

Indastering ea masela, PVA phofo e sebelisoa e le sesebelisoa sa boholo ho fana ka boima, matla le boreleli ho likhoele le masela. Meetso ea boholo e thehiloeng ho PVA e sebelisoa ho likhoele tse ohiloeng pele ho ho loha ho ntlafatsa ts'ebetso ea ho loha, ho fokotsa ho robeha ha khoele le ho ntlafatsa boleng ba lesela. Ho feta moo, PVA e ka sebelisoa e le sesebelisoa sa ho qetela ho eketsa khanyetso ea wrinkles, ho hlaphoheloa ha crease, le thepa ea ho lokolla mobu ho masela a felileng.

3. Ho Koaheloa ka Lipampiri le ho Pakaletsa:

PVA phofo e sebelisoa indastering ea pampiri bakeng sa lisebelisoa tsa ho roala ho ntlafatsa boleng ba lihlahisoa tsa pampiri le pampiri. Liaparo tse entsoeng ka PVA li fana ka khatiso e ntlafalitsoeng, ho khomarela enke, le thepa ea thibelo, e etsang hore e tšoanelehe bakeng sa lisebelisoa tsa boleng bo phahameng tsa khatiso le ho paka. Ho feta moo, liphahlo tsa PVA li ka matlafatsa matla, ho satalla le ho hanyetsa mongobo oa lihlahisoa tsa pampiri, ho ntlafatsa ho tšoarella ha tsona le ts'ebetso ea tsona.

4. Lisebelisoa tsa Kaho:

Lefapheng la kaho, phofo ea PVA e kenyelelitsoe lisebelisoa tse fapaneng tsa moaho bakeng sa thepa ea eona ea sekhomaretsi le e matlafatsang. Li-dispersions tse thehiloeng ho PVA hangata li sebelisoa e le li-agent tse tlamang lihlahisoa tsa samente tse kang likhomaretsi tsa lithaele, metsoako e kopantsoeng le li-plaster formulations. PVA e ka boela ea eketsoa ho metsoako ea samente ho ntlafatsa ts'ebetso, ho khomarela, le ho hanyetsa crack ka har'a seretse le lisebelisoa tsa konkreite.

5. Lifilimi tsa Polymer le Package:

PVA phofo e sebelisoa ho hlahisa lifilimi tsa polymer le thepa ea ho paka ka lebaka la thepa ea eona ea ho etsa lifilimi le ts'ebetso ea lithibelo. Lifilimi tsa PVA li bonts'a ho hlaka ho hoholo, ho tenyetseha le ho hanyetsa mongobo, ho li etsa hore li tšoanelehe bakeng sa lits'ebetso tse joalo ka ho paka lijo, lifilimi tsa temo le liphahlo tse khethehileng. Lifilimi tse thehiloeng ho PVA le tsona li ka sebelisoa e le lisebelisoa tsa ho paka tse qhibilihang ka metsi bakeng sa lihlahisoa tsa lethal dose le le leng le mekotla ea sesepa.

6. Lihlahisoa tsa Tlhokomelo ea Motho:

PVA phofo e sebelisoa ha ho etsoa tlhokomelo ea motho le lihlahisoa tsa litlolo bakeng sa thepa ea eona ea ho etsa filimi le ho teteaneng. Lisebelisoa tse thehiloeng ho PVA li fumanoa lihlahisoa tse kang li-gel tsa setaele sa moriri, li-sprays tsa moriri, limaske tsa sefahleho le litlolo tsa tlhokomelo ea letlalo. PVA e thusa ho ntlafatsa sebopeho, botsitso, le ts'ebetso ea lihlahisoa tsena, ho ntlafatsa boipiletso ba bona ba bareki le ho sebetsa hantle.

Qetello:

Qetellong, PVA phofo ke polymer e sebetsang ka mefuta e mengata e nang le mefuta e mengata ea lisebelisoa ho pholletsa le indasteri. Ho tloha ho likhomaretsi le masela ho isa ho lirafshoa tsa pampiri le thepa ea kaho, PVA e bapala karolo ea bohlokoa ho ntlafatseng ts'ebetso ea sehlahisoa, ho tšoarella le ho sebetsa. Thepa ea eona ea sekhomaretsi, bokhoni ba ho etsa lifilimi, le ho lumellana le lisebelisoa tse ling li etsa hore phofo ea PVA e be tlatsetso ea bohlokoa lits'ebetsong tse fapaneng tsa tlhahiso, e kenyang letsoho ntlafatsong ea lihlahisoa tse ncha le tsa boleng bo holimo makaleng a fapaneng a mebaraka.