Hydroxypropyl methylcellulose (HPMC) ke tlatsetso e sebelisoang haholo indastering ea kaho, haholo lisebelisoa tse thehiloeng ho samente. Thepa ea eona e ikhethang e etsa hore e be karolo ea bohlokoa lits'ebetsong tse fapaneng, ho tloha ho ntlafatsa ts'ebetso ea ts'ebetso ho ntlafatsa ts'ebetso le ho tšoarella ha konkreite le liretse.
1. Tlhaloso le kakaretso ea hydroxypropyl methylcellulose
Hydroxypropyl methylcellulose, eo hangata e khutsufatsoang joalo ka HPMC, ke polymer e thehiloeng ho cellulose e nkiloeng ho makhasi a lehong kapa k'hothone. Ke tlatsetso e nang le mesebetsi e mengata e nang le rheology e ikhethang, ho khomarela le thepa ea ho boloka metsi. Ha e eketsoa ho lisebelisoa tse thehiloeng ho samente, HPMC e sebetsa e le moemeli ea sebetsang ka bongata, e amang thepa e ncha le e thata ea motsoako.
2. Lintho tse ncha tsa thepa e thehiloeng ho samente: ho sebetsa le rheology
E 'ngoe ea mesebetsi ea mantlha ea HPMC ho thepa e thehiloeng ho samente ke ho ntlafatsa ts'ebetso. Ho eketsoa ha HPMC ho ntlafatsa thepa ea rheological ea motsoako, ho lumella ho phalla hantle le boiketlo ba ho behoa. Sena ke sa bohlokoa ka ho khetheha lits'ebetsong tse kang ho behoa ha konkreite le lisebelisoa tsa seretse, moo ho sebetsa e leng ntlha ea bohlokoa.
3. Ho boloka metsi
HPMC e sebetsa joalo ka sesebelisoa sa ho boloka metsi, e thibelang tahlehelo e feteletseng ea metsi ho tsoa ho thepa ea samente nakong ea pele ea kalafo. Ts'ebetso ena e ntlafalitsoeng ea ho boloka metsi e thusa ho boloka maemo a nepahetseng a hydration bakeng sa likaroloana tsa samente, ho khothaletsa nts'etsopele ea matla le ho tšoarella.
4. Ho thatafatsa thepa, matla le ho tšoarella ha thepa e entsoeng ka samente
Tšusumetso ea HPMC ho thepa e thata ea thepa e thehiloeng ho samente e bohlokoa. HPMC e thusa ho eketsa matla a hatellang a konkreite ka ho ntlafatsa ts'ebetso le ho boloka metsi sebakeng se secha. Ntle le moo, ts'ebetso e ntlafalitsoeng ea hydration e fella ka sebopeho se teteaneng, se matlafatsang ho tšoarella ha thepa ka kakaretso le ho hanana le maemo a tikoloho joalo ka potoloho ea leqhoa le tlhaselo ea lik'hemik'hale.
5. Fokotsa ho fokotseha
Lisebelisoa tse entsoeng ka samente hangata lia fokotseha nakong ea ho folisa, e leng se lebisang ho mapetsong. HPMC e fokotsa bothata bona ka ho fokotsa litlhoko tsa metsi tsa motsoako, kahoo e fokotsa monyetla oa ho honyela ha mapetsong. Likahare tsa metsi tse laoloang tse khothalelitsoeng ke HPMC li thusa ho boloka botsitso bo boholo ba thepa e thata.
6. Lintho tsa ho khomarela le ho khomarela
HPMC e thusa ho ntlafatsa thepa ea tlamahano ea thepa e thehiloeng ho samente le ho ntlafatsa ho khomarela pakeng tsa lisebelisoa le likaroloana tse fapaneng. Sena ke sa bohlokoa ka ho khetheha lits'ebetsong tse kang li-adhesive tsa lithaele le li-plaster, moo litlamo tse matla li leng bohlokoa bakeng sa nako e telele le ts'ebetso ea mohaho.
7. Ntlafatsa momahano
Ntle le ho matlafatsa ho khomarela, HPMC e ka boela ea ntlafatsa momahano oa thepa ka boeona. Sena se molemo moo lisebelisoa tse thehiloeng ho samente li hlokang ho khomarela libaka tse otlolohileng kapa ho boloka sebopeho sa tsona nakong ea ts'ebetso.
8. Mathata le Litlhokomelo Tekanyetso le Kamano
Leha HPMC e na le melemo e mengata, katleho ea eona e ipapisitse le litekanyetso tse nepahetseng. Tšebeliso e mpe kapa tšebeliso e mpe ea HPMC e ka baka litlamorao tse kang ho lieha ho beha nako kapa matla a fokotsehileng. Ntle le moo, ho lumellana le li-additives le li-admixtures tse ling ho tlameha ho nahanoa ho netefatsa ts'ebetso e nepahetseng ts'ebelisong e itseng.
9. Tšusumetso tikolohong
Tšusumetso ea tikoloho ea ho sebelisa HPMC linthong tsa kaho ke taba e ntseng e hola. Le ha HPMC ka boeona e khona ho senyeha, ho ts'oara ka kakaretso tlhahiso le ts'ebeliso ea eona e hloka ho nahanoa. Bafuputsi le litsebi tsa indasteri ba ntse ba hlahloba lisebelisoa tse ling tse se nang tikoloho tse ka fanang ka melemo e tšoanang ntle le mathata a tikoloho.
ha re phethela
Ka kakaretso, hydroxypropyl methylcellulose e bapala karolo ea bohlokoa ho ntlafatsa ts'ebetso ea lisebelisoa tse thehiloeng ho samente. Ho tloha ho ntlafatsa ts'ebetso le ho boloka metsi sebakeng se secha ho ea ho matla a ntseng a eketseha, ho tšoarella le ho khomarela sebakeng se thata, HPMC e thusa ho ntlafatsa boleng ba kakaretso ba thepa ea mohaho. Leha ho le joalo, ho hlokomela bokhoni bo felletseng ba HPMC ha u ntse u netefatsa mekhoa e tsitsitseng ea kaho, litekanyetso, tšebelisano le phello ea tikoloho li tlameha ho nahanoa ka hloko. Ha indasteri ea kaho e ntse e tsoela pele ho fetoha, lipatlisiso tse tsoelang pele le nts'etsopele li ka lebisa lits'ebetsong tse ling tsa mahlale a tlatsetso, ho fana ka litharollo tse ntlafetseng tsa mathata a tobaneng le kaho ea sejoale-joale.
Nako ea poso: Dec-12-2023