Impuphu ye-polymer ephinde ihlakazeke (RDP), njengesithako esiyinhloko sezinto eziphilayo ezitsheni zesimanje ezixutshwe ngosawoti, isetshenziswa kabanzi ezinhlelweni ezahlukene ezifana nezinamathiselo zamathayili, izimpushana ze-putty, izimbotshana zokuvala udonga zangaphandle, izimbotshana ezizilinganisayo, kanye nezimbotshana ezingangeni manzi ngenxa yezakhiwo zayo ezinhle zokubopha, ukuguquguquka, kanye namakhono okuguqula. Empeleni, iyimpushana eqinile eyenziwe ngokufutha i-polymer emulsion. Lapho ithinta amanzi, ingaphinde ihlakazeke ibe yi-emulsion ezinzile, ngaleyo ndlela yakhe ifilimu ye-polymer eqhubekayo ngesikhathi senqubo yokuqinisa i-mortar, ithuthukise kakhulu ukusebenza kwe-mortar iyonke.
1. Indlela Eyinhloko Ye-RDP Ekuthuthukiseni Ukusebenza Kwe-Mortar
1.1. Ukuthuthukisa Amandla Esibopho
Ifilimu ye-polymer eyakhiwe yi-RDP ngemuva kokuqina kwe-mortar inokunamathela okuphezulu kanye nokuguquguquka okuhle, yakha ibhuloho eliqinile lokubopha ebusweni be-substrate, okuthuthukisa kakhulu ukunamathelana phakathi kwe-mortar nezinto ezifana nokhonkolo, izitini, amabhodi e-EPS, kanye namathayili. Indima ye-RDP ibaluleke kakhulu kuma-substrate angamuncwa kakhulu noma abushelelezi.
1.2. Ukuguquguquka Okuthuthukisiwe Nokumelana Nokuqhekeka
Izinto ezisekelwe kusimende zendabuko zibuthakathaka kakhulu futhi zivame ukuqhekeka ngenxa yokushintsha kwezinga lokushisa kanye nokuguquguquka kwe-substrate. I-polymer eku-RDP isakazeka ezimbotsheni ze-mortar, yakha isakhiwo senethiwekhi esiguquguqukayo, inciphisa i-modulus ye-elastic yezinto, futhi ithuthukise ukumelana kwayo nokuguquguquka, ngaleyo ndlela ithuthukise kakhulu ukumelana nokuqhekeka kwe-mortar.
1.3. Ukusebenza Okuthuthukisiwe
I-RDP yenza udaka lube luhle futhi lube bushelelezi, okuthuthukisa ukusebenza kahle kanye nomuzwa wokusetshenziswa. Ukugcinwa kwamanzi okuthuthukisiwe kanye nesikhathi eside sokuvula kwenza kube lula ukwakhiwa okubushelelezi, okwandisa ukusebenza kahle kanye nokuqina kwekhwalithi.
1.4. Ukumelana Okuthuthukisiwe Kwamanzi Nesimo Sezulu
Ifilimu ye-polymer inokumelana okuhle kakhulu kokungena kwamanzi kanye nokumelana namanzi, inciphisa ukumuncwa kwamanzi odaka futhi ngaleyo ndlela ithuthukise ukumelana nomswakama kanye nemijikelezo yokuqandisa nokuncibilikisa. Ekusetshenzisweni kodonga lwangaphandle, i-RDP isiza ekuthuthukiseni ukumelana nesimo sezulu kwezimbozo kanye nodaka, igcina ukuzinza kwazo ngaphansi kokuchayeka isikhathi eside.
2. Ukusetshenziswa kwe-Redispersible Polymer (RDP) ezinhlelweni ezahlukene ze-mortar
2.1. Isinamathelisi Sethayela
I-RDP iyisici esibalulekile se-tile adhesive, ithuthukisa kakhulu ukunamathela, izakhiwo ezingasheleli, kanye nokuguquguquka. Kumathayili amakhulu, amathayili aphansi okumunca, noma amathayili ane-vitrified, okuqukethwe okuphezulu kwe-polymer i-RDP iqinisekisa ukubopha okuqinile futhi ivimbela izindawo ezingenalutho kanye nokuqhekeka.
2.2. I-mortar Yokumboza Udonga Lwangaphandle (I-EPS/XPS Adhesive, I-mortar Yokuqeda)
Ezinhlelweni zokufaka izinto zokushisa, i-RDP inikeza ukuguquguquka okudingekayo kanye namandla okubopha, okuvumela ukuthi i-mortar inamathele ngokuqinile kumabhodi e-EPS/XPS. Iphinde ithuthukise ukumelana nokuqhekeka kanye nokumelana nomthelela wesendlalelo sokuqeda, okuqinisekisa ukuzinza kwesikhathi eside kohlelo lokufaka izinto zokushisa.
2.3. Udaka olungangeni manzi
I-RDP yakha ifilimu ye-polymer ebanzi ngaphakathi kwe-mortar, inciphisa ukubhoboka kwama-capillary futhi ithuthukise ukungakwazi ukungena. Isebenza ngokubambisana nemikhiqizo yokufutha usimende, ithuthukisa kakhulu ukuguquguquka nokuqina kwesendlalelo esingangeni manzi.
2.4. Udaka Oluzilinganisayo
Ezinhlelweni zokuzilinganisa, i-RDP ithuthukisa amandla okuqala, ukugeleza, kanye nezakhiwo zokubopha ze-mortar ngenkathi inciphisa ukuqhekeka, okuholela ekwakhiweni kwephansi okuzinzile kanye namandla aphezulu ongaphezulu.
2.5. Impuphu ye-Putty
Ukwengeza i-RDP ku-putty powder kuthuthukisa ukunamathela, izakhiwo zokulwa nokugoba, kanye nomuzwa wokusikwa, okuholela ebusweni bodonga obubushelelezi, obucwengekile kanye nokumelana kwamanzi okuthuthukisiwe kanye nokuqina.
2.6. Ukulungisa i-mortar kanye ne-interface ejenti
I-RDP ithuthukisa ukunamathela kanye nokumelana nokuqhekeka kwezinto zokulungisa, okwenza ziqine futhi zithembeke kakhulu ezisetshenziswayo njengokulungiswa kwekhonkrithi endala kanye nokwelashwa kwe-interface.
3. Izinyathelo Zokuqapha Zokusebenzisa I-Redispersible Polymer Powder
Khetha okufaneleI-RDPuhlobo kanye nomthamo ngokusekelwe emsebenzini wesistimu yodaka;
Ukuhlanganisa nama-ether e-cellulose (HPMC/MHEC), ama-ether e-starch, njll., kungathuthukisa kakhulu ukugcinwa kwamanzi, ukusebenza kahle, kanye nokumelana nokuwa;
Gcina endaweni eyomile ukuze ugweme umswakama kanye nokuqhekeka;
Qinisekisa ukuhlakazeka okuphelele ngesikhathi sokuxuba ukuze kufezwe ukusebenza okuzinzile.
Isikhathi sokuthunyelwe: Disemba-01-2025