Redispersible Polymer Powder (RDP) e bapala karolo ea bohlokoa ho thepa ea sejoale-joale ea kaho, haholo metsoakong ea ho ikemela. Lik'hemik'hale tsena, tse bohlokoa bakeng sa ho lokisa li-substrate tse boreleli, li rua molemo haholo ho kenyelletsoeng ha RDP.
Sebopeho le Thepa ea RDP
RDP e tsoa ho li-polymers tse kang vinyl acetate, ethylene, le acrylics. Ts'ebetso ena e kenyelletsa ho fafatsa emulsion e thehiloeng metsing ho etsa phofo e ka qhalang hape ka metsing, e etsa emulsion e tsitsitseng. Mehaho ea bohlokoa ea RDP e kenyelletsa bokhoni ba eona ba ho ntlafatsa ho khomarela, ho tenyetseha, le ho hanyetsa metsi ka thepa ea kaho.
Sebopeho sa Lik'hemik'hale: Hangata, li-RDP li thehiloe ho li-copolymers tsa vinyl acetate-ethylene (VAE). Li-polymer tsena li tsebahala ka ho leka-lekana pakeng tsa ho tenyetseha le matla, ho li etsa hore li tšoanelehe bakeng sa lits'ebetso tse fapaneng tsa kaho.
Thepa ea 'Mele: RDP hangata e hlaha e le phofo e ntle, e tšoeu. Ha e kopantsoe le metsi, e etsa latex e ka ntlafatsang litšobotsi tsa metsoako ea samente. Bokhoni bona ba ho khutlela mofuteng oa eona oa pele oa emulsion ke oa bohlokoa bakeng sa ts'ebetso ea eona ea metsoako ea ho ikemela.
Seabo sa RDP Mekhatlong ea ho Ikemela
Metsoako ea ho ikemela ke motsoako oa samente o etselitsoeng ho theha libaka tse boreleli le tse ntle ntle le mosebetsi o mongata. Kenyelletso ea RDP metsoakong ena e tlisa lintlafatso tse 'maloa:
Phallo e ntlafetseng le ho sebetsa ha mosebetsi: RDP e ntlafatsa rheology ea motsoako, ho netefatsa hore phallo e ntle le ho ata ha eona. Thepa ena e bohlokoa bakeng sa ho fihlela boemo bo holimo ka boiteko bo fokolang. Likaroloana tsa polymer li fokotsa likhohlano tse ka hare ka har'a motsoako, li e lumella ho phalla habonolo holim'a substrate.
Ntlafatso ea Khomarelo: E 'ngoe ea mesebetsi ea mantlha ea RDP ke ho matlafatsa khokahanyo ea motsoako o ikemelang ho li-substrates tse fapaneng. Sena ke sa bohlokoa ka ho khetheha ho netefatsa hore motsoako o theha maqhama a matla le mokato o teng, ebang ke konkreite, lehong kapa lisebelisoa tse ling. Likaroloana tsa polymer li kenella ka holim'a substrate, li ntlafatsa ho kopanya ha mechine le lik'hemik'hale tsa lik'hemik'hale.
Flexibility le Crack Resistance: Ho feto-fetoha ha maemo ho fanoang ke RDP ho thusa ho amohela metsamao ea substrate le ho atolosoa ha mocheso, ka hona ho fokotsa monyetla oa ho phatloha. Ho feto-fetoha ha maemo hona ho molemo haholo libakeng tse tlas'a ho fetoha ha mocheso kapa ho sisinyeha hanyenyane, ho netefatsa hore sebaka se lekaneng se tšoarella nako e telele.
Poloko ea Metsi: RDP e ntlafatsa mekhoa ea ho boloka metsi ea motsoako o ikemelang. Sena se bohlokoa ho thibela tahlehelo ea metsi ka potlako e ka lebisang ho se nang metsi hantle ha samente, ho bakang libaka tse fokolang le tse robehang. Ho boloka metsi ho matlafalitsoeng ho netefatsa hore samente e fola ka nepo, e fumana matla le ho tšoarella nako e telele.
Matla a Mechini: Ho ba teng ha RDP ho matlafatsa thepa ea mochini ka kakaretso ea motsoako o ikemetseng. Sena se kenyelletsa matla a ntlafetseng le a hatellang, a bohlokoa bakeng sa bophelo bo bolelele le ho tšepahala ha tharollo ea fatše. Filimi ea polymer e entsoeng ka har'a matrix e sebetsa e le ntho e matlafatsang, e aba likhatello le ho matlafatsa botšepehi ba sebopeho.
Mokhoa oa Ts'ebetso
Ho sebetsa hantle ha RDP mekhoeng ea ho ikemela ho ka utloisisoa ka mokhoa oa eona oa ts'ebetso:
Tlhahiso ea Lifilimi: Ka mor'a metsi le ho omisoa, likaroloana tsa RDP lia kopana ho etsa filimi ea polymer e tsoelang pele ka har'a matrix a samente. Filimi ena e sebetsa e le setlamo se feto-fetohang le se matla se tšoarang matrix hammoho, se matlafatsang momahano ka kakaretso.
Packing ea Particle: RDP e ntlafatsa boima ba ho paka ba likaroloana tse ka har'a komporo ea ho ikemela. Sena se lebisa ho microstructure e kopaneng le e teteaneng, e fokotsang porosity le ho eketsa matla.
Interfacial Bonding: Liketane tsa polymer tsa RDP li sebelisana le lihlahisoa tsa samente tsa hydration, ho ntlafatsa maqhama a sefahleho lipakeng tsa likarolo tsa samente le likaroloana tse kopaneng. Tlamahano ena e ntlafetseng e kenya letsoho mosebetsing o betere oa mochine le ho tšoarella.
Likopo le Melemo
Ho kenyeletsoa ha RDP mekhoeng ea ho ikemela ho fumana lits'ebetso maemong a fapaneng:
Merero ea Nchafatso: Metsoako e ntlafalitsoeng ea RDP e ikemiselitseng ho nchafatsa mekato ea khale le e sa lekaneng. Ba fana ka tharollo e potlakileng le e sebetsang ea ho fihlela sebaka se boreleli le boemo bo loketseng bakeng sa lisebelisoa tse latelang tsa fatše.
Mabatooa a Liindasteri: Libakeng tsa liindasteri moo mekato e tlas'a meroalo e boima le sephethephethe, matla a matlafalitsoeng le ho tšoarella nako e fanoeng ke RDP li molemo haholo.
Mokato oa Bolulo: Bakeng sa likopo tsa bolulo, RDP e netefatsa sebaka se boreleli, se se nang mapheo se ka amohelang mefuta e fapaneng ea masela a fatše, ho kenyeletsoa lithaele, limmete le fuluru ea lepolanka.
Liaparo tse ka tlas'a lefatše bakeng sa ho futhumatsa ha mahlaseli a mahlaseli: Metsoako ea ho itšebetsa e fetotsoeng ea RDP e atisa ho sebelisoa e le liphahlo tse ka tlas'a metsi bakeng sa lisebelisoa tse futhumatsang tse khanyang. Bokhoni ba bona ba ho theha sebaka se boreleli le se lekaneng se tiisa kabo e nepahetseng ea mocheso le ho fokotsa kotsi ea tšenyo ea lintho tse futhumatsang.
Mehopolo ea Tikoloho le Moruo
Moshoelella: RDP e ka kenya letsoho lits'ebetsong tsa kaho tse tsitsitseng. Ts'ebetso e ntlafetseng ea metsoako ea ho ikemela e bolela hore thepa e fokolang e hlokahalang ho finyella boleng bo lakatsehang, ho fokotsa tšebeliso ea thepa ka kakaretso. Ho feta moo, ho tšoarella ho ntlafetseng ha mekato e ntlafalitsoeng ea RDP ho ka lebisa ho nako e telele ea bophelo, ho fokotsa tlhoko ea litokiso khafetsa le tse ling.
Katleho ea Litšenyehelo: Le hoja RDP e ka eketsa litšenyehelo tsa pele tsa lik'hemik'hale tsa ho ikemela, melemo ea nako e telele hangata e feta litšenyehelo tsa pele. Ts'ebetso e ntlafetseng, litšenyehelo tse fokotsehileng tsa basebetsi ka lebaka la ts'ebeliso e bonolo, le nako e telele ea bophelo ea tharollo ea fatše e fana ka melemo e mengata ea moruo.
Redispersible Polymer Powder ke tlatsetso ea bohlokoa mekhoeng ea ho ikemela, e fanang ka melemo e mengata e ntlafatsang ts'ebetso le ho tšoarella ha tharollo ea fatše. Bokhoni ba eona ba ho ntlafatsa phallo, ho khomarela, ho tenyetseha, le matla a mochini o etsa hore e be ea bohlokoa haholo lits'ebetsong tsa bolulo le tsa indasteri. Ka ho utloisisa sebopeho, mekhoa, le melemo ea RDP, litsebi tsa kaho li ka ananela hamolemo karolo ea eona ho theheng metsoako ea boithaopo e sebetsang hantle le e tšoarellang nako e telele. Ha indasteri ea kaho e ntse e tsoela pele ho fetoha, bohlokoa ba lisebelisoa tsa ts'ebetso e phahameng joalo ka RDP bo tla eketseha feela, bo tsamaise boqapi le botsitso mekhoeng ea kaho.
Nako ea poso: Jun-03-2024