Hydroxypropyl methylcellulose (HPMC) ke setenya le modifier e sebelisoang haholo indastering ea kaho, ea ho roala le ea likhomaretsi.
1. Eketsa viscosity
HPMC e sebetsa joalo ka motenya, 'me e ka eketsa haholo viscosity ea likhomaretsi le liphahlo. Keketseho ea viscosity e thusa ho ntlafatsa rheology ea sehlahisoa nakong ea ts'ebeliso, ho etsa hore ho be bonolo ho kenya seaparo ntle le ho rotha kapa ho thella. Likhomaretsi tse phahameng tsa viscosity li fana ka taolo e ntlafetseng nakong ea kopo le ho qoba ho phalla pele ho nako, ho netefatsa tlamo e ntle.
2. Ntlafatsa bokhoni ba ho boloka metsi
HPMC e na le thepa e ntle ea ho ts'oara metsi 'me e ka theha mokoallo o sireletsang khahlanong le mongobo oa lirafshoa le likhomaretsi. Ho bolokoa hona ha metsi ho eketsa nako e bulehileng ea lirafshoa le likhomaretsi, ho lumella nako e telele ea kopo. Ka nako e ts'oanang, ho boloka metsi hantle ho ka boela ha thibela mapetsong le ho peeling ea ho roala kapa sekhomaretsi nakong ea ho omisa, ho ntlafatsa ho tšoarella ha sehlahisoa sa ho qetela.
3. Ntlafatsa ts'ebetso ea ho roala
HPMC e ka ntlafatsa ho hasana le botsitso ba liphahlo, ho lumella li-pigments le lisebelisoa tse ling hore li ajoe ka mokhoa o ts'oanang, ka hona ho ntlafatsa boleng ba kakaretso ba ho roala. Nakong ea ts'ebetso ea ho roala, HPMC e nolofalletsa pente hore e thehe seaparo se ts'oanang holim'a sefahleho sa kopo, ho ntlafatsa boreleli le bokhabane ba ho roala. HPMC e ka boela ea thusa ho fokotsa li-bubble le likoli, ho ntlafatsa ponahalo ea pente.
4. Ntlafatsa ho rarolla khanyetso
Ho kenyelletsa HPMC ho likoahelo le likhomaretsi ho ka thibela ka nepo likaroloana tse tiileng ho tsitsa nakong ea polokelo. Thepa ena e thibelang ho lokisa e tiisa hore sehlahisoa se boloka ho tšoana hantle ka mor'a ho boloka nako e telele, ho qoba bothata ba ho sisinyeha ho feteletseng pele ho sebelisoa, 'me ho ntlafatsa botsitso le ts'ebeliso ea sehlahisoa.
5. Ntlafatsa matla a maqhama
Sebopeho sa limolek'hule tsa HPMC se ka ntlafatsa tšebelisano lipakeng tsa sekhomaretsi le substrate le ho ntlafatsa matla a tlamahano. Haholo-holo lits'ebetsong tse ling tse khethehileng, tse kang bonding ba lithaele tsa ceramic, ho tlama ha majoe, joalo-joalo, ho eketsoa ha HPMC ho ka ntlafatsa haholo phello ea ho kopanya, ho etsa hore sekhomaretsi sa ho qetela se be thata le ho tšepahala ha se mamella matla a ka ntle.
6. Ntlafatsa ho hanyetsa metsi le ho hanyetsa mocheso
HPMC e na le ts'ireletso e ntle ea metsi le mocheso, e ntlafatsa ts'ebetso ea lirafshoa le likhomaretsi libakeng tse mongobo. Tšobotsi ena e etsa hore seaparo se sebetse haholoanyane ha se sebelisoa ka ntle kapa maemong a mongobo o phahameng, ho fokotsa kotsi ea ho ebola kapa ho senya lesela le bakoang ke mongobo. Ho phaella moo, ho hanyetsa mocheso oa HPMC ho boetse ho etsa hore sehlahisoa se be se tsitsitseng tlas'a maemo a phahameng a mocheso 'me se khone ho boloka thepa ea' mele.
7. Fokotsa Likokoana-hloko tsa Likokoana-hloko (VOC)
Boemong ba ho eketseha ha mathata a tikoloho, HPMC, joalo ka polymer e qhibilihang ka metsi, e ka thusa ho fokotsa litaba tsa metsoako ea tlhaho e sa fetoheng (VOC) ka lirapeng le likhomaretsing. Ka ho sebelisa HPMC, bahlahisi ba ka hlahisa lihlahisoa tse nang le botsoalle ho tikoloho tse fihlelang litlhoko tsa moaho o motala le litlhoko tsa ts'ebetso ntle le ho tela ts'ebetso.
Tšebeliso ea HPMC ka li-adhesives le coatings ha e ntlafatse thepa ea bona ea rheological feela, matla a ho tšoara metsi le matla a ho kopanya, empa hape e ntlafatsa ho hanyetsa metsi le ho hanyetsa mocheso. Thepa ea eona e ikhethang e etsa hore HPMC e be tlatsetso ea bohlokoa liindastering tsena, e tsamaisang ntlafatso ea ts'ebetso ea sehlahisoa le boqapi ba mebaraka. Ha tlhoko ea lisebelisoa tse baballang tikoloho le ts'ebetso e phahameng e ntse e eketseha, litebello tsa ts'ebeliso ea HPMC li tla pharalla.
Nako ea poso: Oct-21-2024