tsebisa
Hydroxypropyl methylcellulose, eo hangata e tsejoang e le HPMC, ke motsoako o sebelisoang haholo indastering ea kaho joalo ka seretse se tsitsitseng.Keketso ena ea lik'hemik'hale e phetha karolo ea bohlokoa ho ntlafatseng ts'ebetso le thepa ea seretse se sebelisoang mefuteng e fapaneng ea ts'ebetso ho kenyelletsa le masonry, lithaele le plaster.
1. Utloisisa HPMC
A. Sebopeho sa lik'hemik'hale le sebopeho
Hydroxypropylmethylcellulose ke ea lelapa la cellulose ether 'me e tsoa ho li-polymer tsa tlhaho tse kang lehong kapa makhasi a k'hothone.Sebopeho sa eona sa lik'hemik'hale se na le likaroloana tsa tsoekere tse hokahantsoeng ke β-(1→4)-glycosidic bond.Lihlopha tsa Hydroxypropyl le methyl tse khomaretsoeng mokokotlong oa cellulose li fa HPMC thepa e ikhethang.
B. Lintho tsa 'mele
Solubility: HPMC e bonts'a ho qhibiliha ho hoholo ha metsi, ho etsa litharollo tse hlakileng, tse hlakileng.
Rheological Behaviour: Thepa ea rheological ea HPMC e ka fetoloa ho laola viscosity le thepa ea phallo ea seretse.
Thermal Stability: HPMC e lula e tsitsitse holim'a mefuta e mengata ea mocheso, e etsa hore e tšoanelehe bakeng sa likopo tsa kaho maemong a fapaneng a tikoloho.
2. Karolo ea HPMC ka seretse
A. Ho boloka metsi
HPMC ke sesebelisoa se sebetsang sa ho boloka metsi se thibelang tahlehelo e potlakileng ea mongobo ho tsoa motsoakong oa seretse.Sena se bohlokoa ho boloka ts'ebetso le ho fana ka nako e lekaneng ea ts'ebeliso e nepahetseng.
B. Ntlafatsa ho khomarela
Thepa ea sekhomaretsi ea HPMC e nolofalletsa maqhama a betere lipakeng tsa seretse le substrate, ka hona e eketsa matla le ho tšoarella ha thepa ea moaho.
C. Fetola rheology
Ka ho fetola boitšoaro ba rheological ea seretse, HPMC e thusa ho laola ho tsitsa ha eona, ho sebetsa habonolo, le bokhoni ba ho khomarela libaka tse otlolohileng ntle le ho sisinyeha.
D. Anti-sagging
Thepa ea thixotropic ea seretse se nang le HPMC e netefatsa hore thepa e lula e le teng holim'a libaka tse otlolohileng, ho thibela ho sagging kapa ho oa nakong ea kaho.
E. Beha taolo ya nako
HPMC e ka laola ka nepo nako ea ho beha lirekere, ho netefatsa hore li folisa ka sekhahla se nepahetseng ho fihlela litlhoko tse ikhethileng tsa kopo.
3. Kopo ea HPMC kahong
A. Seretse sa Masonry
HPMC e atisa ho sebelisoa ka seretse sa masonry ho ntlafatsa ho sebetsa, ho boloka metsi le matla a tlamo, ka tsela eo ho ntlafatsa boleng ba kaho le ho tšoarella.
B. Sekhomaretsi sa Lithaele
Litaelong tsa sekhomaretsi sa lithaele, HPMC e tiisa ho khomarela hantle, ho fokotsa ho thella le ho ntlafatsa boiketlo ba kopo bakeng sa ho kenya lithaele tse tšepahalang le tse ntle.
C. Ho pola
Ho kenyelletsa HPMC ho lirekere tsa plastering ho ntlafatsa ho boloka metsi, ho sebetsa le ho khomarela, ho fella ka lithapo tse bonolo, tse tšoarellang bakeng sa mabota le siling.
4. Melemo ea ho sebelisa HPMC ka seretse
A. Ntlafatsa tshebetso
HPMC e ntlafatsa ho sebetsa ha seretse, ho etsa hore kopo le ho sebetsana le eona nakong ea kaho ho be bonolo.
B. Eketsa ho boloka metsi
Lintho tse bolokang metsi tsa HPMC li thusa ho thibela ho fetoha mouoane ka potlako, ho etsa bonnete ba hore seretse se lula se le polasetiki nako e telele, se thusa ho behoa hantle le ho qeta.
C. Ntlafatsa ho khomarela le matla a tlamahano
Thepa ea sekhomaretsi ea HPMC e thusa ho matlafatsa maqhama lipakeng tsa seretse le substrate, ka tsela eo e matlafatsa sets'oants'o sa sebopeho.
D. Boleng bo tsitsitseng
Ho sebelisa HPMC mefuteng ea seretse ho lumella taolo e kholo holim'a thepa ea thepa, ho fella ka boleng bo tsitsitseng ho pholletsa le morero oa kaho.
5 Qetello
Hydroxypropyl methylcellulose (HPMC) ke karolo ea bohlokoa ea indasteri ea kaho e le seretse se tsitsitseng se nang le lisebelisoa tse fapaneng.Mehaho ea eona e ikhethang e thusa ho ntlafatsa ts'ebetso, ho boloka metsi, ho khomarela le ho sebetsa ka kakaretso ha seretse ka masonry, tile le plaster application.Ha mekhoa ea kaho e ntse e tsoela pele ho fetoha, HPMC e ntse e le motsoako oa bohlokoa, ho fa lihahi le likonteraka lisebelisoa tsa ho finyella litekanyetso tse phahameng tsa boleng, ho tšoarella le ho sebetsa hantle mererong.
Nako ea poso: Dec-18-2023