I-Redispersible polymer powders (RDPs) idonse ukunaka okusabalele emkhakheni wezinto zokwakha ngenxa yekhono lawo lokuthuthukisa izakhiwo ezahlukahlukene zodaka nemikhiqizo esekwe usimende.Enye yezinzuzo eziyinhloko ze-RDP amandla ayo okwandisa ukumelana nokuwohloka, isici esibalulekile ezinhlelweni zokwakha.
I-Redispersible polymer powders (RDP) isiphenduke izithasiselo eziguquguqukayo ezintweni zokwakha, enikeza izinzuzo eziningi ezihlanganisa ukunamathela okuthuthukisiwe, ukuguquguquka, ukumelana namanzi kanye nokumelana ne-sag.Ukumelana ne-Sag kusho ikhono lempahla ukugcina isimo sayo futhi ivimbele ukugeleza noma ukuwohloka lapho isetshenziswa ngokuqondile noma ngaphezulu.Kuzicelo zokwakha ezifana nokunamathiswa kwamathayili, ama-plaster kanye nama-stuccoes, ukumelana ne-sag kubalulekile ukuze kuqinisekiswe ukufakwa okufanele nokusebenza kwesikhathi eside.
Izakhiwo ze-Redispersible Polymer Powder (RDP)
I-RDP ijwayele ukukhiqizwa ngenqubo yokumisa isifutho lapho ukuhlakazeka kwe-polymer kuguqulwa kube impushana egeleza mahhala.Izici ze-RDP, okuhlanganisa usayizi wezinhlayiyana, izinga lokushisa lokushintsha kwengilazi, uhlobo lwe-polymer, nokwakheka kwamakhemikhali, kudlala indima ebalulekile ekunqumeni ukusebenza kwayo ezinhlelweni zokwakha.Ukusatshalaliswa kosayizi wezinhlayiyana ze-RDP kuthinta ukuhlakazeka kwayo, ukwakheka kwefilimu kanye nezakhiwo zemishini, okubuye kuthinte ukumelana nokucwila.
1.Indlela ye-RDP yokuthuthukisa izakhiwo zokulwa nokuntenga
Ziningi izindlela ezinomthelela ekwandeni kokumelana ne-RDP ekuncipheni:
a.Ukugcwalisa Izinhlayiya: Izinhlayiya ezinhle ze-RDP zingagcwalisa izikhala futhi zandise ukuminyana kokugcwalisa kodaka noma okunamathelayo, ngaleyo ndlela kwandise ukumelana kwayo ne-sag.
b.Ukubunjwa kwefilimu: I-RDP yenza ifilimu eqhubekayo lapho ifakwe amanzi, iqinisa i-matrix yodaka futhi idlulisa ukuhlangana, ngaleyo ndlela yehlisa ukuthambekela kokuwohloka.
C. Ukuvumelana nezimo: Izici ezinwebekayo ze-RDP zifaka isandla ekuguquguqukeni kodaka, okuwuvumela ukuba umelane nengcindezi nokuguqulwa ngaphandle kokuwohloka.
d.Ukugcinwa kwamanzi: I-RDP ingathuthukisa amandla okugcina amanzi odaka, iqinisekise ukusebenza kwesikhathi eside futhi yehlise nengozi yokuwohloka ngesikhathi sokwakha.
2. Izinto ezithinta ukumelana ne-sag
Kunezici eziningi ezithinta ukumelana ne-sag yezinto zikasimende, okuhlanganisa:
a.Ukubunjwa: Uhlobo nenani le-RDP, kanye nezinye izithasiselo ezifana nama-thickeners nama-dispersants, kungathinta kakhulu ukumelana ne-sag.
b.Ukungaguquguquki: Ukungaguquguquki kodaka noma okunamathelayo kunqunywa izici ezifana nesilinganiso samanzi okunamathelayo kanye nenqubo yokuhlanganisa, futhi kudlala indima ebalulekile ekuphikisweni kwe-sag.
C. Izakhiwo ze-Substrate: Izakhiwo ze-substrate, ezifana ne-porosity kanye nama-roughness, zithinta ukunamathela kanye nokumelana nokucwiliswa kwezinto ezisetshenzisiwe.
d.Izimo zemvelo: Izinga lokushisa, umswakama, nokugeleza komoya kungathinta inqubo yokomisa nokuphulukisa, ngaleyo ndlela kuthinte ukumelana ne-sag.
3. Ukuhlolwa kokumelana ne-sag
Kungasetshenziswa izindlela ezahlukahlukene ukuhlola ukumelana ne-sag yezinto zokwakha, okuhlanganisa:
a.Ukuhlolwa kokugeleza: Ukuhlolwa kokugeleza, okufana nokuhlolwa kokuwohloka nokuhlolwa kwebhentshi lokugeleza, ngokuvamile kusetshenziselwa ukuhlola ukuziphatha kokugeleza nokuvumelana kwezinsimbi nezinamathiselo.
b.Ukuhlolwa kwe-Sag: Ukuhlolwa kwe-sag kufaka phakathi ukusebenzisa isampula ngokuqondile noma phezulu kanye nokulinganisa idigri ye-sag ngokuhamba kwesikhathi.Amasu afana nokuhlola ikhoni nokuhlola i-blade asetshenziselwa ukulinganisa ukumelana ne-sag.
C. Izilinganiso ze-Rheological: Imingcele ye-Rheological, ehlanganisa i-viscosity, isivuno sokucindezeleka kanye ne-thixotropy, inikeza ukuqonda ekugelezeni nasekuziphatheni kokuguqulwa kwezinto zokwakha.
d.Ukusebenza okungokoqobo: Ekugcineni, ukumelana nokokusebenza ekuncipheni kuhlolwa ngokusekelwe ekusebenzeni kwayo ezinhlelweni zokusebenza zomhlaba wangempela, njengokufakwa kwamathayili nokunikezwa kwe-facade.
4. Ukusetshenziswa kwe-RDP ekuthuthukiseni ukumelana nokuntengantenga
I-RDP isetshenziswa kabanzi ezintweni zokwakha ukuthuthukisa ukumelana ne-sag:
a.I-Tile Adhesives: I-RDP ithuthukisa ukunamathela nokumelana ne-sag kokunamathela kwamathayela, iqinisekisa ukubopha okufanele kanye nokunciphisa ukushelela kukathayela ngesikhathi sokufakwa.
b.Ukunikezela kanye ne-Stucco: Ekuplastekeni kwangaphandle kanye ne-stucco, i-RDP inyusa ukumelana nokuntenga futhi ivumela ukushelela, ngisho nokusebenza ezindaweni eziqondile ngaphandle kokuwohloka noma ukuwohloka.
C. Izinhlanganisela zokuzilinganisa: I-RDP ingafakwa ezinhlanganisela ezizilinganisa ukuze kuthuthukiswe ukugeleza nokumelana nokucwila, okuholela endaweni ephansi neleveli.
d.Ulwelwesi olungangeni manzi: I-RDP ithuthukisa ukumelana nokuntenga kolwelwesi olungangeni manzi, iqinisekise ukumbozwa nokuhlinzeka ngokuvikela okuthembekile okungangeni manzi.
5. Izibonelo nezibonelo
Izibonelo ezimbalwa zezifundo kanye nezibonelo zibonisa ukusebenza kahle kwe-RDP ekuthuthukiseni ukumelana nokuntengantenga:
a.I-Case Study 1: Ukusetshenziswa kwe-RDP kokunamathela kuthayela kumaphrojekthi amakhulu okuthengisa, okubonisa ukumelana nokuntenga okuthuthukisiwe kanye nokuqina kwesikhathi eside.
b.I-Case Study 2: Ukuhlolwa kokunikezwa okuguquliwe kwe-RDP kumafacade akhombisa ukumelana nokuntenga okuphakeme kanye nokumelana nesimo sezulu.
C. Isibonelo soku-1: Ukuqhathaniswa kokungaguquki kodaka olunesengezo se-RDP nangaphandle kwalo, okugqamisa intuthuko enkulu ezuzwe nge-RDP.
d.Isibonelo sesi-2: Isilingo senkambu ye-RDP eshintshiwe yokuzilinganisa ngokuzilinganisa, ebonisa ukusebenziseka kalula kanye nokumelana okuhle kakhulu nokuntenga ngaphansi kwezimo zomhlaba wangempela.
Izimpushana ze-polymer ezidispersible (RDP) zidlala indima ebalulekile ekuthuthukiseni ukumelana nokuntenga kwezinto zokwakha, ukuhlinzeka ngenhlanganisela yezinto eziqiniswayo ngomshini, ukwakheka kwefilimu kanye nezakhiwo zokugcina amanzi.Ngokuqonda izindlela nezici ezithonya ukumelana nokuntengantenga nokusebenzisa izindlela zokuhlola ezifanele, onjiniyela nosonkontileka bangasebenzisa i-RDP ngempumelelo ukuze bathole izixazululo zokwakha ezihlala isikhathi eside nezisebenza kahle kakhulu.Ngokuqhubeka kocwaningo kanye nokusungula izinto ezintsha, i-RDP kulindeleke ukuthi iqhubeke nokuba isengezo esibalulekile ekuxazululeni izinselele ezihlobene nokwehla nokuthuthukisa umkhakha wezinto zokwakha.
Isikhathi sokuthumela: Feb-28-2024