Li-cellulose ethers ke sehlopha sa li-polymers tse qhibilihang ka metsing tse boima ba molek'hule tse nkiloeng ho selulose.Li 'nile tsa sebelisoa haholo indastering ea kaho e le li-admixtures tse ntlafatsang ts'ebetso bakeng sa lihlahisoa tse thehiloeng ho samente le tsa gypsum.Har'a tsona, hydroxypropyl methylcellulose (HPMC) ke e 'ngoe ea li-cellulose ether tsa bohlokoa ka ho fetisisa bakeng sa putty.
Joaloka moetsi oa HPMC ea hloahloa, re tla u hlalosetsa karolo ea cellulose ether ho putty.Re tšepa hore poso ena e fana ka lintlha tse molemo bakeng sa ba thahasellang sehlooho sena.
1. Ho boloka metsi
E 'ngoe ea mesebetsi e ka sehloohong ea cellulose ether bakeng sa putty ke ho boloka metsi.Putty ke lintho tse kang sekhomaretsi tse sebelisoang ho tlatsa likheo le mapetsong a kang mabota, siling le fatše.Metsi ke motsoako oa bohlokoa ho li-putty formulations hobane a thusa ho qhaqha metsoako le ho fana ka ts'ebetso.Leha ho le joalo, metsi a mangata haholo a ka etsa hore putty e omelle mme e fokotsehe ka potlako, e lebisang ho phunyeha le ho qeta boleng bo tlaase.
Cellulose ether, haholo-holo HPMC, e etsa sebopeho se kang gel ha se kopantsoe le metsi, se ka ntlafatsang ho boloka metsi a putty.Lihlopha tsa hydrophilic tsa HPMC li ka monya limolek'hule tsa metsi 'me tsa li thibela ho fetoha mouoane ka potlako.Tšobotsi ena e lumella nako e telele ea ho sebetsa le mokhoa o tsitsitseng oa putty.
2. Ntlafatsa mokhoa oa ho sebetsa
Mosebetsi o mong oa bohlokoa oa cellulose ether bakeng sa putty ke ho ntlafatsa ts'ebetso ea eona.Ho sebetsa ho bolela boiketlo boo putty e sebelisoang ka eona le ho bōptjoa ho fumana sebaka se boreleli.Cellulose ether e ka ntlafatsa phallo ea metsi le ho ata ha putty ka ho fokotsa khohlano lipakeng tsa likaroloana le ho eketsa lubrication ea sistimi.
Ho eketsoa ha li-cellulose ethers ho li-putty ho boetse ho fokotsa ho kenngoa ha moea ho bakoang ke ho kopanya, ho ka lebisang libakeng tse sa tsitsang le ho khomarela hampe.Tšebeliso ea li-cellulose ethers e ntlafatsa ho boreleli le ho tsitsisa ha putty, ho fella ka ts'ebetso e ntle ka kakaretso le qetello e ntle haholoanyane.
3. Eketsa ho khomarela
Molemo o mong oa cellulose ether bakeng sa putty ke ho eketseha ho khomarela.Li-putty li sebelisetsoa ho tlatsa likheo le mapetsong, hammoho le ho etsa sebaka se boreleli bakeng sa pente kapa tse ling.Ka hona, putty e tlameha ho khona ho khomarela substrate le ho fana ka tlamo e matla.
Cellulose ether, haholo-holo HPMC, e ka ntlafatsa ho khomarela ha putty ka ho etsa filimi holim'a substrate.Filimi e ntlafatsa kamano pakeng tsa putty le substrate mme e thusa ho tlatsa ho se lekane ha holimo.Sena se fella ka tlamo e matla le ho qeta nako e telele.
4. Fokotsa ho fokotseha
Shrinkage ke bothata bo tloaelehileng ka putty, kaha e ka lebisa ho phunyeha le ho qeta boleng bo tlaase.Li-cellulose ethers li ka thusa ho fokotsa putty shrinkage ka ho ntlafatsa ho boloka metsi le ho sebetsa ha putty.Metsi a fetoha mouoane butle-butle, a etsa hore putty e be boreleli bo thusang ho thibela mapetsong le mapetsong hore a se ke a hlaha nakong ea ho omisa.
Ho phaella moo, ether ea cellulose e ka boela ea fokotsa shrinkage ea polasetiki ea putty, ke hore, ho fokotseha ho etsahalang nakong ea boemo ba pele.Thepa ena ke ea bohlokoa ka ho khetheha bakeng sa li-putty tse potlakileng, kaha li thusa ho boloka botšepehi ba holim'a metsi le ho thibela ho thehoa ha mapetsong.
5. Ho ntlafala ho tšoarella
Qetellong, li-cellulose ethers li ka ntlafatsa ho tšoarella ha putty ka ho matlafatsa khanyetso ea eona ho maemo a tikoloho joalo ka liphetoho tsa mocheso, mongobo le abrasion.Lintho tse entsoeng ka filimi ea cellulose ether li ka fana ka thibelo e sireletsang holim'a putty ho thibela ho kenella ha metsi le litšila tse ling.
Ho feta moo, cellulose ether e ka boela ea ntlafatsa matla a ho feto-fetoha le ho hanyetsa ha putty, ho etsa hore e se ke ea thijoa habonolo le ho petsoha.Thepa ena e bohlokoa haholo bakeng sa lits'ebetso moo li-putty li tšoaroang khafetsa kapa li amehang khafetsa, joalo ka ha ho lokisoa kapa ho qeta ho khabisa.
ha re phethela
Qetellong, li-cellulose ethers, haholo-holo HPMC, ke metsoako ea bohlokoa e ntlafatsang ts'ebetso ea putty.Mesebetsi ea bona e kenyelletsa ho boloka metsi, ts'ebetso e ntlafetseng, ho khomarela ho eketseha, ho fokotsa ho fokotseha le ho matlafatsa nako e telele.Ho sebelisa li-cellulose ethers ho thusa ho ntlafatsa boleng ba kakaretso le ts'ebetso ea putty, ho fella ka pheletso e betere le bophelo bo bolelele.Joaloka moetsi oa setsebi oa HPMC, re ikemiselitse ho fa bareki boleng ba boleng bo phahameng ba cellulose ether le tšehetso ea tekheniki.
Nako ea poso: Jul-20-2023