Hydroxypropyl methylcellulose (HPMC) ke setlatsetso se sebelisoang haholo indastering ea kaho, haholo-holo thepa e thehiloeng samenteng. Thepa ea eona e ikhethang e etsa hore e be karolo ea bohlokoa lits'ebetsong tse fapaneng, ho tloha ho ntlafatseng bokhoni ba ho sebetsa ho ea ho ntlafatseng ts'ebetso le ho tšoarella ha konkreite le li-mortar.
1. Tlhaloso le kakaretso ea hydroxypropyl methylcellulose
Hydroxypropyl methylcellulose, eo hangata e khutsufatswang e le HPMC, ke polymer e thehiloeng ho cellulose e nkiloeng ho pulp ea lehong kapa k'hothone. Ke tlatsetso e sebetsang ka mesebetsi e mengata e nang le rheology e ikhethang, ho khomarela le litšobotsi tsa ho boloka metsi. Ha e eketsoa linthong tse thehiloeng ho samente, HPMC e sebetsa e le moemeli oa mesebetsi e mengata, e amang litšobotsi tse foreshe le tse thatafetseng tsa motsoako.
2. Thepa e ncha ea thepa e thehiloeng samenteng: bokhoni ba ho sebetsa le rheology
E 'ngoe ea mesebetsi e meholo ea HPMC thepa e thehiloeng samenteng ke ho ntlafatsa bokhoni ba ho sebetsa. Ho eketsoa ha HPMC ho ntlafatsa litšobotsi tsa rheological tsa motsoako, ho lumella phallo e ntle le bonolo ba ho beha. Sena se bohlokoa haholo lits'ebetsong tse kang ho beha konkreite le ts'ebeliso ea seretse, moo bokhoni ba ho sebetsa e leng ntlha ea bohlokoa.
3. Ho boloka metsi
HPMC e sebetsa e le sesebelisoa sa ho boloka metsi, e thibela tahlehelo e feteletseng ea metsi ho tsoa linthong tse etsang samente nakong ea pele ea ho fola. Mokhoa ona o ntlafalitsoeng oa ho boloka metsi o thusa ho boloka maemo a matle a ho nosetsa bakeng sa likaroloana tsa samente, e leng se khothalletsang nts'etsopele ea matla le ho tšoarella.
4. Thepa ea ho thatafatsa, matla le ho tšoarella ha thepa e thehiloeng samente
Tšusumetso ea HPMC holim'a thepa ea ho thatafatsa ea thepa e thehiloeng samente e bohlokoa haholo. HPMC e thusa ho eketsa matla a ho hatella a konkreite ka ho ntlafatsa bokhoni ba ho sebetsa le ho boloka metsi boemong bo hloekileng. Ho feta moo, ts'ebetso e ntlafetseng ea metsi e fella ka sebopeho se senyenyane se teteaneng, se ntlafatsang ho tšoarella ha thepa ka kakaretso le ho hanyetsa mabaka a tikoloho joalo ka lipotoloho tsa ho hatsela le tlhaselo ea lik'hemik'hale.
5. Fokotsa ho fokotseha ha
Hangata thepa e thehiloeng samenteng e a fokotseha nakong ea ts'ebetso ea ho lokisa, e leng se lebisang ho mapetsong. HPMC e fokotsa bothata bona ka ho fokotsa litlhoko tsa metsi tsa motsoako, ka hona e fokotsa monyetla oa mapetsong a ho fokotseha. Metsi a laoloang a khothaletsoang ke HPMC a thusa ho boloka botsitso ba boholo ba thepa e thatafalitsoeng.
6. Litšobotsi tsa ho khomarela le ho khomarela
HPMC e thusa ho ntlafatsa thepa ea ho kopanya ea thepa e thehiloeng samente le ho ntlafatsa ho khomarelana pakeng tsa thepa le li-substrate tse fapaneng. Sena se bohlokoa haholo lits'ebetsong tse kang likhomaretsi tsa thaele le li-plaster, moo likhomaretsi tse matla li leng bohlokoa bakeng sa nako e telele le ts'ebetso ea moaho.
7. Ntlafatsa kutlwano
Ntle le ho ntlafatsa ho khomarela, HPMC e ka boela ea ntlafatsa ho kopana ha thepa ka boeona. Sena se molemo moo thepa e thehiloeng samente e hlokang ho khomarela libakeng tse otlolohileng kapa ho boloka sebopeho sa eona nakong ea ts'ebeliso.
8. Liphephetso le Mehopolo Tekanyo le ho Tsamaellana
Leha HPMC e na le melemo e mengata, katleho ea eona e itšetlehile ka tekanyo e nepahetseng. Tšebeliso e feteletseng kapa tšebeliso e mpe ea HPMC e ka fella ka litlamorao tse mpe tse kang ho lieha ho beha nako kapa matla a fokotsehileng. Ho feta moo, ho lumellana le lintho tse ling tse tlatsetsang le tse kopantsoeng ho tlameha ho nahanoa ho netefatsa ts'ebetso e ntle ts'ebelisong e itseng.
9. Tšusumetso tikolohong
Tšusumetso ea tikoloho ea ho sebelisa HPMC thepa ea kaho ke ngongoreho e ntseng e hola. Le hoja HPMC ka boeona e ka bola, ho hlokahala hore ho nahanoa ka botsitso ba tlhahiso le ts'ebeliso ea eona ka kakaretso. Bafuputsi le litsebi tsa indasteri ba ntse ba hlahloba li-additi tse ling tse sireletsang tikoloho tse ka fanang ka melemo e tšoanang ntle le mathata a tikoloho.
ha re phethela
Ka bokhutšoanyane, hydroxypropyl methylcellulose e phetha karolo ea bohlokoa ho ntlafatseng ts'ebetso ea thepa e thehiloeng samente. Ho tloha ho ntlafatseng bokhoni ba ho sebetsa le ho boloka metsi boemong bo hloekileng ho ea ho eketsa matla, ho tšoarella le ho khomarela boemong bo thatafetseng, HPMC e thusa ho ntlafatsa boleng bohle ba thepa ea kaho. Leha ho le joalo, ho hlokomela bokhoni bo felletseng ba HPMC ha ho ntse ho netefatsoa mekhoa ea kaho e tsitsitseng, tekanyo, ho lumellana le tšusumetso ea tikoloho ho 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 ho boqapi bo eketsehileng mahlaleng a tlatsetso, ho fana ka litharollo tse ntlafalitsoeng liphephetsong tse tobaneng le kaho ea sejoale-joale.
Nako ea poso: Tshitwe-12-2023