Umsebenzi oyisisekelos:
I-RDP Powder iyi-powder ewuketshezi encibilikayo emhlophe noma emhlophe ekhiqizwa ngokufafaza i-emulsion ekhethekile esekwe emanzini.
I-RDP I-powder yakha ifilimu ngemva kokuhlakazwa futhi isebenza njenge-adhesive yesibili.Ti-colloid evikelayo imuncwa uhlelo lodaka (ngeke ichithwe ngamanzi ngemva kokwakhiwa kwefilimu, noma "ukuhlakazeka kwesibili").Twenza ifilimu ye-polymer resinasa izinto eziqinisayo, zisakazwa kulo lonke uhlelo lodaka, ngaleyo ndlela kukhulisa ukuhlangana, tunamandla acindezelayo namandla aguquguqukayo odaka.
Ukwengezwa kweI-RDP impushana ekwandiseni udaka ithuthukisa ukuqina komthelela wodaka, futhi inika udaka umphumela omuhle wokuhlakazeka kwengcindezi.Indlela yokubopha incike ekukhangisweni nasekusabalaliseni kwe-macro ama-molecule endaweni enamathelayo.
Ngesikhathi esifanayo, i-I-RDP inezinga elithile lokungena.Kanye ne-cellulose ether, ingena ngokugcwele ebusweni bezinto eziyisisekelo, ukuze ungqimba lwesisekelo kanye nobuso be-plaster entsha buseduze nokusebenza kwendawo, ngaleyo ndlela i-adsorbing Ukusebenza kwayo kwanda kakhulu.Yehlisa i-elastic modulus futhiukukhubazeka-ikhono kodaka, futhi unciphise ukuqhekeka.
Ukumelana nokuhuzuka kodaka:
Ukumelana ne-abrasion kubangelwa ikakhulukazi ukuba khona kwenani elithile leglue ebusweni bodaka.Impuphu yerabha isebenza njenge-ejenti yokubopha.Isakhiwo se-mesh esakhiwe yimpuphu yerabha singadlula emigodini futhi siqhekeke odakeni lukasimende.Thuthukisa ukuhlangana kwezinto eziyisisekelo kanye nomkhiqizo we-cement hydration, ngaleyo ndlela uthuthukise ukumelana nemihuzuko.Nikeza udaka ukumelana okuhle kakhulu kwe-alkali.
Indima yeI-RDP powder ku-putty, udaka kanye neglue ye-tile:
Impushana ye-putty yodonga lwangaphakathi nangaphandle, okokunamathisela okunamathayili, i-ejenti yokuhlanganisa i-tile, i-ejenti yokusebenzelana kwempushana eyomile, udaka lwangaphandle olufakwa ngaphakathi olushisayo, udaka oluzilinganisa ngokwalo, udaka lokulungisa, udaka lokuhlobisa, udaka olungangeni manzi kanye nodaka oluxubile olushisayo lwangaphandle.It iwukuthuthukisa ukushwabana kanye nemodulus enwebekayo ephezulu yodaka lukasimende lwendabuko, futhi kunikeze udaka lukasimende ukuguquguquka okungcono namandla okubopha okuqinile ukumelana nokubambezeleka kokuqhekeka kodaka lukasimende.Ngenxa yokuthi i-polymer nodaka lwakha isakhiwo senethiwekhi esingena ngaphakathi, ifilimu ye-polymer eqhubekayo yenziwa ezimbotsheni, eqinisa isibopho phakathi kwama-aggregates futhi ivimbe ezinye ze-pores kudaka.Ngakho-ke, udaka oluguquliwe oluqinile lusebenza kangcono kunodaka lukasimende.Kukhona intuthuko enkulu.
Indima yeI-RDP i-powder in putty ikakhulukazi kulezi zici ezilandelayo:
1. Ukunamathela kanye nezakhiwo zemishini ye-putty.I-RDPi-powder binder eyenziwe nge-emulsion ekhethekile (i-polymer ephezulu yamangqamuzana) efuthwe-yomisiwe.Le powder ingaba ngokusheshakabusha ibe i-emulsion ngemva kokuxhumana namanzi, futhi inezakhiwo ezifanayo njenge-emulsion yokuqala, okungukuthi, ifilimu ingakhiwa ngemva kokuba amanzi eqhuma.Le filimu inokuguquguquka okuphezulu, ukumelana nesimo sezulu esiphezulu kanye nokumelana nokunamathela okuhlukahlukene Okuphezulu ku-substrate.Ngaphezu kwalokho, impushana ye-latex exosha amanzi ingenza udaka lube nokuphikiswa kahle kwamanzi.
2. Ukuhlangana kwe-putty, ukumelana okuhle kakhulu, ukumelana ne-alkali, ukumelana nemihuzuko, namandla okuguquguquka athuthukisiwe.
3. I-putty engangeni manzi kanye nokungena kwamanzi.
4. Ukugcinwa kwamanzi kwe-putty, ukwandisa isikhathi sokuvula, nokusebenza.
5. Ukumelana nomthelela we-putty nokuqina okuthuthukisiwe kwe-putty.
Indima yeI-RDP impushana odakeni ikakhulukazi kulezi zici ezilandelayo:
1. Amandla acindezelayo namandla aguquguqukayo odaka.
2. Ukwengezwa kwe-latex powder ekwandiseni udaka kuthuthukisa ukuqina komthelela wodaka futhi kunikeza udaka umphumela omuhle wokuhlakazeka kwengcindezi.
3. Ukusebenza kokubopha kodaka kuyathuthukiswa.Indlela yokuhlanganisa incike ekukhangisweni nasekusabalaliseni kweama-macro molecule endaweni enamathelayo.Ngesikhathi esifanayo, i-powder yerabha inezinga elithile lokungena.Kanye ne-cellulose ether, ingena ngokugcwele ebusweni bezinto eziyisisekelo, ukuze ungqimba lwesisekelo kanye nobuso be-plaster entsha buseduze nokusebenza kwendawo, ngaleyo ndlela i-adsorbing Ukusebenza kwayo kwanda kakhulu.
4. Yehlisa i-elastic modulus futhiukukhubazeka-ikhono kodaka futhi unciphise ukuqhekeka.
5. Gqoka ukumelana nodaka.Ukumelana ne-abrasion kubangelwa ikakhulukazi ukuba khona kwenani elithile leglue ebusweni bodaka.Impuphu yerabha isebenza njenge-ejenti yokubopha.Isakhiwo se-mesh esakhiwe yimpuphu yerabha singadlula emigodini futhi siqhekeke odakeni lukasimende.Thuthukisa ukuhlangana kwezinto eziyisisekelo kanye nomkhiqizo we-cement hydration, ngaleyo ndlela uthuthukise ukumelana nemihuzuko.
6. Nikeza udaka ukumelana okuhle kakhulu kwe-alkali.
Isikhathi sokuthumela: Jul-29-2021