Ngabe i-RDP Powder ithuthukisa kanjani ukusebenza kokwakha udaka?

I-RDP (i-Redisperible polymer powder) isengezo sezinto ezivamile zokwakha ezithuthukisa kakhulu ukusebenza kodaka ngamakhemikhali athuthukisiwe kanye nezindawo ezibonakalayo.

(1) Ukuchazwa kanye nezinto eziyisisekelo ze-RDP

1. Ukwakheka kanye nezakhiwo ze-RDP

I-Redisperible Powler Powder (RDP) iyimpuphu ye-polymer elungiselelwe ubuchwepheshe bokuchomisa bokufafaza, imvamisa ngokususelwa kuma-polymers afana ne-vinyl acetate, ethylene, kanye ne-acrylates. I-RDP powder ingahle iphinde ibhekwe ukwakha i-emulsion ezinzile lapho ixutshwe namanzi, ngaleyo ndlela kunikeze izakhiwo ezifana ne-latex.

2. Imisebenzi ye-RDP

Umsebenzi oyinhloko we-RDP powder ukuthuthukisa amandla webhondi, ukuguquguquka, ukumelana kwamanzi kanye nokumelana nokuqhekeka kodaka. Isakhiwo saso samakhemikhali sivumela ukwakheka kwamafilimu avumelanayo we-polymer ku-datara, okuthuthukisa ukusebenza kodaka ngesikhathi somiswa nokwelapha.

(2) Ukuthuthukiswa kokwenza umsebenzi wodaka nge-RDP

1. Kuthuthukisiwe amandla ebhondi

Ukuvuselelwa kabusha kwe-RDP powder ku-jonnar kukuvumela ukuthi wakhe ifilimu eliqhubekayo le-polymer ngesikhathi senqubo yokulapha. Le filimu ingenza njengebhuloho phakathi kodaka kanye ne-substrate, ithuthukisa amandla e-bonding. Ngqo:

Ukwenza ngcono isibopho sokuqala: Lapho udaka kuqala oxhumana nabo i-substrate, izinhlayiya ezinhle ze-RDP zingangena ngokushesha ku-micropores ebusweni be-substrate, ngaleyo ndlela kuthuthukiswe.

Ukwenza ngcono ukusebenza okubukwayo isikhathi eside: Njengoba udaka luqina, ifilimu ye-polymer eyakhiwe yi-RDP ingamelana nezinguquko ekucindezelekeni kwemvelo, okwenza ukuba izibopho zihlala isikhathi eside kakhulu.

2. Ukuthuthukisa ukuguquguquka nokumelana nokuqhekeka

I-RDP powder ingathuthukisa kakhulu ukuguquguquka kodaka. Lokhu kuthuthukiswa kokusebenza kungenxa yokuhleleka nokuxhumeka kwe-polymer amaketanga ngesikhathi senqubo yomisha:

Ikhono elikhulayo le-defformation

Ukuthuthukisa ubunzima: Ukuguquguquka okunikezwe yi-RDP kuvumela udaka ukuze anciphise ngempumelelo futhi axhumanise ngalezi zingcindezi lapho ethola ukunwetshwa kwe-thermal kanye nokudlidliza kwangaphandle.

3. Thuthukisa ukumelana kwamanzi kanye nokumelana komswakama

Ifilimu le-polyp lika-RDP linezindawo ezingangeni manzi, okwenza udaka olungamelana nokungena kwamanzi ngemuva kokomiswa:

Yehlisa ukungena kwamanzi: ifilimu le-polymer livimba indlela yokungena kwamanzi, yehlisa ukulimala kwamanzi kudaka, futhi kunwebe impilo yenkonzo yodaka.

Thuthukisa ukumelana kwe-freeze-thaw

4. Thuthukisa ukusebenza kokwakha

Ukungezwa kwe-RDP nakho kukwenza kahle izici zokwakha zodaka:

Khuphula isikhathi sokusebenza: I-RDP inganweba isikhathi sokusebenza sodaka, enikeza abasebenzi abazokwakha isikhathi sokwenza izinguquko nokulungiswa.

Thuthukisa ukugcinwa kwamanzi: I-RDP ithuthukisa ukugcinwa kwamanzi kodaka, okwenza kube mancane amathuba okuthi udaka alahlekelwe amanzi ngesikhathi sokwakha, okusiza udaka ukuze aqine ngokulinganayo futhi asebenzise ukusebenza kwawo kamuva.

(3) Izibonelo zohlelo lokusebenza nemiphumela

1. Izimbozo zangaphakathi nezangaphandle zodonga

I-RDP ivame ukusetshenziselwa ukuthuthukisa udaka lwangaphakathi nolokungaphandle, olunikeza amandla amakhulu okuqinisa kanye nokumelana kwamanzi. Ilungele izimbotshana zodonga ngaphansi kwezimo ezahlukahlukene zesimo sezulu futhi inciphisa ubungozi bodonga lokuqhekeka futhi luwa.

2. Amathayili anamathela

I-RDP ithuthukisa kakhulu amandla eBonding kanye nokuqina kuma-tile anamathela, ukuvimbela amathayili ekuweni ngemuva kokuvezwa umswakama noma amandla.

3. Udaka oluzimele

Ngodaka lokuzimela, ukungezwa kwe-RDP kuthuthukisa uketshezi kanye nokugcwalisa umthamo wodaka, ngenkathi uthuthukisa ukumelana kwayo kokuqhekeka, okwenza phansi kube bushelelezi futhi bazinze kakhulu.

Ukusetshenziswa kwe-RDP powder ekwakheni uMota kuthuthukise kakhulu amandla eBonding, ukuguquguquka, ukumelana kwamanzi kanye nokwenza umsebenzi wokwakha kodaka. Ngokwakha ifilimu elizinzile le-polymer, i-RDP ithuthukisa ukusebenza okuphelele kodaka, okwenza kuvumelaniswe kangcono nezidingo ezahlukahlukene zokwakha. Lokhu kuthuthukiswa akugcini nje ngokuthuthukisa ikhwalithi ephelele yesakhiwo sokwakha, kepha futhi kwandisa impilo yenkonzo yesakhiwo, okuletha izinzuzo ezinkulu zezomnotho nezobuchwepheshe embonini yezokwakha.