Li-redispersible polymer powders (RDPs) li hohetse tlhokomelo e atileng tšimong ea thepa ea kaho ka lebaka la bokhoni ba tsona ba ho ntlafatsa thepa e fapaneng ea seretse le lihlahisoa tse thehiloeng ho samente.O mong oa melemo ea mantlha ea RDP ke bokhoni ba eona ba ho eketsa khanyetso ho sag, ntlha ea bohlokoa lits'ebetsong tsa kaho.
Redispersible polymer powders (RDP) e se e le litlatsetso tse fapaneng tsa thepa ea kaho, e fana ka melemo e mengata e fapaneng e kenyelletsang ho khomarela, ho tenyetseha, ho hanyetsa metsi le ho hanyetsa sag.Sag resistance e bolela bokhoni ba thepa ho boloka sebopeho sa eona le ho thibela phallo kapa deformation ha e sebelisoa ka holimo kapa holimo.Lits'ebetsong tsa kaho tse kang li-adhesives tsa lithaele, li-plaster le li-stuccoes, ho hanyetsa sag ho bohlokoa ho etsa bonnete ba ho kenya ts'ebetso e nepahetseng le ts'ebetso ea nako e telele.
Thepa ea Redispersible Polymer Powder (RDP)
RDP e atisa ho etsoa ka mokhoa oa ho omisa ka ho fafatsa moo ho qhalana ha polymer ho fetoloa phofo e phallang mahala.Litšobotsi tsa RDP, ho kenyelletsa boholo ba likaroloana, mocheso oa phetoho ea khalase, mofuta oa polymer, le sebopeho sa lik'hemik'hale, li bapala karolo ea bohlokoa ho khethollang ts'ebetso ea eona lits'ebetsong tsa kaho.Kabo ea boholo ba likaroloana tsa RDP e ama ho hasana ha eona, ho etsa lifilimi le thepa ea mochini, e leng eona e amang sag resistance.
Mokhoa oa 1.RDP oa ho ntlafatsa thepa ea anti-sag
Ho na le mekhoa e 'maloa e kenyang letsoho ho eketseheng ha RDP ho hanyetsa ho fokotseha:
a.Ho Tlatsoa ha Particle: Likaroloana tse ntle tsa RDP li ka tlatsa li-voids le ho eketsa letsoalo la ho tlatsa seretse kapa sekhomaretsi, ka hona li eketsa khanyetso ea eona ho sag.
b.Sebopeho sa filimi: RDP e etsa filimi e tsoelang pele ha e tšeloa metsi, e matlafatsa matrix a seretse le ho fana ka momahano, kahoo e fokotsa tšekamelo ea ho sisinyeha.
C. Flexibility: Thepa ea elasticity ea RDP e kenya letsoho ho tenyetseheng ha seretse, ho e lumella ho mamella khatello ea maikutlo le deformation ntle le ho thekesela.
d.Ho boloka metsi: RDP e ka ntlafatsa bokhoni ba ho boloka metsi a seretse, ea netefatsa ts'ebetso ea nako e telele le ho fokotsa kotsi ea ho fokotseha nakong ea kaho.
2. Lintho tse amang sag resistance
Ho na le lintlha tse ngata tse amang khanyetso ea sag ea thepa ea samente, ho kenyelletsa:
a.Sebopeho: Mofuta le palo ea RDP, hammoho le li-additives tse ling tse kang li-thickeners le dispersants, li ka ama haholo ho hanyetsa ho sag.
b.Consistency: Ho tsitsa ha seretse kapa sekhomaretsi ho khethoa ke lintlha tse kang karo-karolelano ea metsi ho sekhomaretsi le mokhoa oa ho kopanya, 'me o phetha karolo ea bohlokoa ho hanyetsa sag.
C. Substrate Properties: Thepa ea substrate, e kang porosity le roughness, e ama ho khomarela le ho hanyetsa sag ea thepa e sebelisoang.
d.Maemo a Tikoloho: Mocheso, mongobo le phallo ea moea li ka ama ts'ebetso ea ho omisa le ho folisa, ka hona, li ama ho hanyetsa ha sag.
3. Tlhahlobo ea ho hanyetsa sag
Ho ka sebelisoa mekhoa e fapaneng ho lekola khanyetso ea sag ea thepa ea moaho, ho kenyelletsa:
a.Liteko tsa phallo: Liteko tsa phallo, joalo ka liteko tsa ho putlama le liteko tsa benche ea phallo, hangata li sebelisoa ho lekola boits'oaro ba phallo le ho ts'oana ha seretse le likhomaretsi.
b.Teko ea Sag: Teko ea sag e kenyelletsa ho sebelisa sampole ho ea holimo kapa holimo le ho metha tekanyo ea nako.Mekhoa e joalo ka tlhahlobo ea li-cone le tlhahlobo ea blade e sebelisoa ho lekanya khanyetso ea sag.
C. Litekanyo tsa Rheological: Mekhahlelo ea likokoana-hloko, ho kenyelletsa le viscosity, khatello ea lihlahisoa le thixotropy, e fana ka temohisiso mabapi le ho phalla le ho fetola boitšoaro ba thepa ea kaho.
d.Ts'ebetso e sebetsang: Qetellong, ho hanyetsa ha thepa ho sag ho hlahlojoa ho ipapisitsoe le ts'ebetso ea eona lits'ebetsong tsa lefats'e tsa nnete, joalo ka ho kenya lithaele le ho fana ka facade.
4. Tšebeliso ea RDP molemong oa ho matlafatsa khanyetso
RDP e sebelisoa haholo lisebelisoa tsa kaho ho matlafatsa khanyetso ea sag:
a.Li-Adhesives tsa Lithaele: RDP e ntlafatsa ho khomarela le ho hanyetsa lithaelese tsa lithaelese, ho netefatsa hore ho tlamahanngoa hantle le ho fokotsa ho thella ha lithaele nakong ea ho kenya.
b.Rendering and Stucco: Ho plastering ka ntle le stucco, RDP e eketsa ho hanyetsa 'me e lumella ho sebetsa hantle, esita le ho sebetsa libakeng tse otlolohileng ntle le ho thella kapa ho senyeha.
C. Metsoako ea ho ikemela: RDP e ka kenngoa metsoakong ea ho ikemela ho ntlafatsa phallo le ho hanyetsa ho sag, e leng se etsang hore ho be le sebaka se bataletseng le se lekaneng.
d.Membrane e sa keneleng metsi: RDP e ntlafatsa ho hanyetsa ha lesela le sa keneleng metsi, ho netefatsa hore le ho koaheloa le ho fana ka ts'ireletso e tšepahalang e sa keneleng metsi.
5. Lithuto le mehlala
Liphuputso tse 'maloa le mehlala li bonts'a katleho ea RDP ho ntlafatseng khanyetso:
a.Thuto-pale ea 1: Tšebeliso ea RDP ho sekhomaretsi sa lithaele bakeng sa merero e meholo ea khoebo, e bonts'ang khanyetso e matlafalitsoeng le ho tšoarella ha nako e telele.
b.Thuto-pale ea 2: Tekolo ea RDP e fetotsoeng ka lifacade tse bontšang khanyetso e phahameng le ho hanyetsa boemo ba leholimo.
C. Mohlala 1: Papiso ea seretse se sa tsitsang se nang le litlatsetso tsa RDP le ntle le tsona, e totobatsang ntlafatso e kholo e fihletsoeng ka RDP.
d.Mohlala 2: Teko ea tšebetso ea RDP e fetotsoeng ea ho ikemela, e bonts'ang boiketlo ba ts'ebeliso le boits'oaro bo botle ba ho hana tlas'a maemo a sebele a lefats'e.
Redispersible polymer powders (RDP) e bapala karolo ea bohlokoa ho ntlafatsa ho hanyetsa ha thepa ea moaho, ho fana ka motsoako oa matlafatso ea mochini, ho etsa lifilimi le thepa ea ho boloka metsi.Ka ho utloisisa mekhoa le lintlha tse susumetsang khanyetso le ho sebelisa mekhoa e nepahetseng ea tlhahlobo, baenjiniere le borakonteraka ba ka sebelisa RDP ka nepo ho fihlela litharollo tsa kaho tse tšoarellang le tse sebetsang hantle haholo.Ka lipatlisiso tse tsoelang pele le boqapi, RDP e lebelletsoe ho tsoela pele ho ba tlatsetso ea bohlokoa ho rarolleng mathata a amanang le ho fokotseha le ho ntshetsa pele lefapha la thepa ea moaho.
Nako ea poso: Feb-28-2024