Hydroxypropyl methylcellulose (HPMC) ke cellulose ether e sebelisoang hangata liindastering tse fapaneng, ho kenyeletsoa gypsum indastering ea kaho.Motsoako ona o sebetsang ka bongata o phetha karolo ea bohlokoa ho ntlafatsa ts'ebetso le thepa ea gypsum plaster.
1. Selelekela ho HPMC:
Hydroxypropyl methylcellulose ke ntho e nkiloeng ho cellulose ea tlhaho ea polymer.E entsoe ka ho phekola cellulose ka propylene oxide le methyl chloride.Sephetho ke polymer e qhibilihang ka metsi e nang le thepa e ikhethang e ka fumanang lits'ebetso liindastering tse fapaneng.
2. Ts'ebetso ea HPMC:
Ho qhibiliha ha metsi: HPMC e qhibiliha habonolo ka metsing, e etsa tharollo e hlakileng le e se nang mebala.
Lintho tsa ho etsa lifilimi: Lintho tsa ho etsa filimi li thusa ho theha filimi e sireletsang holim'a metsi.
Thermal gelation: HPMC e na le gelation e fetohang ea mocheso, ho bolelang hore e ka etsa gel ka mocheso o phahameng 'me ea khutlela tharollong ha e pholile.
Viscosity: The viscosity ea tharollo ea HPMC e ka fetoloa ho latela tekanyo ea sebaka le boima ba molek'hule.
3. Tšebeliso ea HPMC ka gypsum:
Ho boloka metsi: HPMC e sebetsa e le moemeli oa ho boloka metsi ka gypsum, ho thibela tahlehelo e potlakileng ea metsi nakong ea ho beha.Sena se ntlafatsa ts'ebetso mme se fana ka bophelo bo bolelele ba ts'ebeliso.
Ntlafatso ea Khomarelo: Thepa ea ho etsa filimi ea HPMC e thusa ho ntlafatsa sekhomaretsi sa stucco ho li-substrates tse fapaneng, ho theha maqhama a matla.
Taolo e tsitsitseng: Ka ho laola viscosity ea motsoako oa gypsum, HPMC e thusa ho boloka ts'ebetso e tsitsitseng, ho netefatsa hore ho na le sepakapaka se lekanang.
Crack Resistance: Ho sebelisa HPMC ka samente ho thusa ho ntlafatsa ho tenyetseha le ho fokotsa menyetla ea mapetsong a sehlahisoa se felileng.
Nako ea ho Beha: HPMC e ka susumetsa nako ea ho beha gypsum kahoo e ka fetoloa ho fihlela litlhoko tse khethehileng tsa kopo.
4. Tekanyo le ho kopanya:
Palo ea HPMC e sebelisoang ka gypsum e itšetlehile ka lintlha tse fapaneng tse kang thepa e lakatsehang, ho etsoa ha gypsum le litlhoko tsa kopo.Ka tloaelo, e kenngoa ho motsoako o omileng nakong ea ho kopanya.Mekhoa ea ho kopanya e bohlokoa ho netefatsa phallo e ts'oanang le ts'ebetso e nepahetseng.
5.Ho lumellana le ts'ireletso:
HPMC e lumellana le mefuta e fapaneng ea li-additives tse sebelisoang mefuteng ea samente.Ho feta moo, e nkoa e sireletsehile bakeng sa ho sebelisoa thepa ea mohaho 'me e lumellana le litekanyetso tse nepahetseng tsa taolo.
6. Qetello:
Hydroxypropyl methylcellulose (HPMC) e bapala karolo ea bohlokoa ho ntlafatsa ts'ebetso ea plaster ea gypsum.Lintho tsa eona tse ikhethang li thusa ho ntlafatsa ho sebetsa, ho khomarela le boleng ba kakaretso ba samente.Keketso e sebelisoang haholo indastering ea kaho, HPMC e ntse e le karolo ea bohlokoa ea libopeho tsa plaster tsa boleng bo holimo.
Nako ea poso: Jan-19-2024