Hydroxypropypropinyl Methylcellll. E entsoe ka methylcellulose ka karabelo ea metsi a hydroxypropy, adhedity, ho boloka metsi, ka hona ho na le likopo tsa bohlokoa tsa ho aha, bosholu ba lik'hemik'hale le masimo a letsatsi le letsatsi.
1. Kopo ea hydroxypropyl methylcell e penta ea metsi
Pente e thehiloeng metsing ke pente e nang le metsi e le solvent ea mantlha. E na le litšobotsi tsa ts'ireletso ea tikoloho, chefo ea tikoloho le metsoako e tlase ea lefutso (voc), 'me e ile ea nkela likokoanyana tsa moetlo tse thehiloeng moetlong. Joaloka bolo ea thipa, HPMC e bapala karolo ea bohlokoa pente e thehiloeng metsing.
Phello ea Thickening
E 'ngoe ea mesebetsi e ka sehloohong ea HPMC ka pente e thehiloeng metsing ke ho fana ka phello e matla. E ka ikopanya le limolek'hule tsa metsi ka limolek'hule tsa hydroxypropyl le lihlopha tsa methyl mohahong oa limolek'hule, e le hore tsamaiso ea pente e na le rheology e ntle. Setšoantšo se mahloko ke junifomo e meholo, ho na le tumello e ntle le ts'ebetso, 'me e ka netefatsa bosholu le bokaholimo ba mohoebi.
Ntlafatsa ts'ebetso ea kaho ea likariki
Matla a ho teba a HPMC ha a re thusa ho ntlafatsa phapano ea likotsi, empa hape e boetse e eketsa ho emisoa ha makhapetla, ho etsa hore limakasine le libapali le libapali li hasanya ka matla bokoang. Sena se bohlokoa haholo bakeng sa kaho ea lipere tse thehiloeng metsing, hobane ho hasaha ka har'a lihaboto tsa 'mala ho ka qoba phapang ea mebala, mokelikeli kapa ho sesa nakong ea kaho.
Fana ka bolokolohi ba metsi
Mouoane oa metsi nakong ea ho omisa lipente tse thehiloeng metsi ke ntho ea bohlokoa. Mokhoa oa ho boloka metsi oa HPMC o ka fokotsa sekhahla se bulehileng sa pente (nako e bulehileng e bolela nako ea pente e ka tsoelang pele ho brued). Karolo ena e bohlokoa ho netefatsa hore boleng ba kaho ba ho akolla, fokotsa mats'oaetso le ho ntlafatsa maemo a pente.
Ntlafatsa thepa ea 'mele ea filimi ea koae
HPMC ho lipene tse thehiloeng metsing li ke ke tsa eketsa pono ea ho koaloa, empa hape le ho ntlafatsa matla a motlakase, ho feto-fetoha ha ho be le matla a ho koahela. Ka lebaka la boteng ba boteng ba hydrophilic le hydrophobic bo kang hydroxypropyl le methyl ho tsitsipano ea leholimo le methy
2. Kopo ea hydroxypropyl methylcellllulose in peint
Bareki ba penta ke lik'hemik'hale ba sebelisetsoang ho tlosa likheo tsa khale kapa li-file tsa pente, 'me hangata li sebelisoa ho tokiso le ntlafatso. Li-sperpep tsa setso tsa pente hangata li na le li-solvet tse mpe, ha HPMC, joalo ka ha HPMC, e le ho ntlafatsa botsoalle ba polokeho le tikoloho ea tikoloho ha e sebelisoa ho penta.
Matlafatso le li-greding
Maemong a potehang, HPMC e bapala karolo ea ho holisa le ho le ts'oanya, ho etsa hore mafumahali a pente e hlahisa pono e phahameng. Moruti ona oa pente e phahameng o ka khomarela ka thata, ho thata ho e phalla, e netefatse hore mokhoa oa pente o lula le ho kotula ka nako e telele le ho ntlafatsa phello ea eona e makatsang.
Khopolo e liehang ea solvents
Melemo ea qhobosheane ea metsi le thipa ea HPMC e nolofalletsa ho lokolla metsoako e sebetsang butle-butle, butle-butle e kenella ho koahelang, ka ho etsa joalo ka lebaka la tšilafalo ea substrate. Ha ho bapisoa le li-raruper tsa setso, liphokojoe tse halikiloeng tse nang le HPMC li ka tlosa likheo ka bonolo 'me li loketse lits'ebetso tse bonolo tsa ho tlosoa.
Ho Ntlafatsa botsitso ba li-stripers tsa pente
Ho eketsoa ha HPMC le hona ho ka ntlafatsa ho tsitsa ha bahloeki ba pente le ho eketsa bophelo ba bona ba polokelo. HPMC e na le hydrate e matla, e ka bolokang botsitso ba ho boloka thepa, ho thibela stratations kapa pula, le ho netefatsa maemo a eona nakong ea ts'ebeliso.
Ntlafatsa ts'ebetso ea ts'ebetso ea tlhahlobo ea pente
Kaha HPMC e ka ntlafatsa pono ea li-stripers tsa pente, ho ka ama ts'ebetso le ts'ebetso nakong ea ts'ebeliso e kholo ea li-sol obōpeho. Lifu tsa eona li ka fokotsa litšila tsa li-rarunt tsa pente le ho netefatsa hore tšebeliso e 'ngoe le e' ngoe e ka phahamisa phello.
3. Melemo ea hpmc le tebello ea eona ea 'maraka
E le sebaka sa tikoloho, se nang le chefo, HPMC e na le tebello ea kopo ea mmaraka e pharalletseng haholo ea mmaraka. Haholo-holo ts'ebelisong ea lipere tse thehiloeng metsing le thepa ea pente, thepa e ikhethang ea HPMC e etsa khetho e ntle. Melemo ea lona e bolokang metsi, thepa ea rheoloji le bochaba e etsa hore batho ba bang le metsi a thehiloeng ka metsing mme ba bolokehile, 'me ba na le thepa e ntle ea kaho le thepa e ntle ea kaho. Ntle le moo, phello ea to e tiisa 'me e lelekisa li-HPMC maemong a pente le tsona li ka ntlafatsa phello ea pente le ts'ebetsong, le ho fokotsa tšenyo ea substrate.
Ha melao ea tikoloho e ntse e thatafala le ho feta, tlhoko ea lipente tse tala tse nang le metsi le pente e tala li tla tsoela pele ho eketseha. E le molaoli oa boleng bo holimo, HPMC e tla bapala karolo ea bohlokoahali masimong ana. Ka ntlafatso ea tlhokomeliso ea batho le ntlafatso ea litlhoko tsa ts'ebetso tsa lihlahisoa tsa pente, menyetla ea ts'ebetso ea HPMC e pharaletse haholo.
HydroxypropypropinyL methylcelulose, e le polymer ea nang le metsi a qhibilihileng ea metsi, e sebelisitsoe haholo lipete tse thehiloeng metsi le litloholo tsa pente. Mokhoa o motle oa ho boloka metsi, ho boloka metsi le ho tsitsisa le botsitso le botsitso bo ntlafatsang haholo mosebetsi oa kaho le botsoalle ba lihlahisoa tsena. Nakong e tlang, ka ntlafatso ea litlhokahalo tsa ts'ireletso ea tikoloho le keketseho ea tlhoko ea 'maraka, ts'ebeliso ea HPMC e tla tsoelapele ho hola.
Poso: Feb-19-2025