Yini i-polymer polymer powder

I-Redisperible Powmer Powder (RDP) iyingxenye ebalulekile ezintweni zanamuhla zokwakha, ukuhlinzeka ngezakhiwo ezithuthukisiwe ekusungulweni okuhlukahlukene. Ngezimpawu zayo ezihlukile nezinhlelo zokusebenza eziguquguqukayo, i-RDPPSAys Indima ebalulekile ekwenzeni ngcono ukusebenza, ukuqina kanye nokuqina kwemikhiqizo yokwakha.

1. Isingeniso ku-polymer polymer powder

I-Redispersergeble Poly Puter iyi-free-flow flow, white powder etholwe ngokomiswa kwesifutho sokufafaza ama-polymer dispersions. Lawa ma-powders aqukethe inhlanganisela yama-polymers zokwenziwa afana ne-vinyl acetate ethylene (VEAE), i-vinyl acetate / vinyl vertatate (veova), i-ethylene-vinyl chloride (e-VC), nabanye. Inqubo yokukhiqiza ifaka ukuguqulwa kokuhlakazwa koketshezi kube yifomu eliqinile le-powder ngenkathi kulondolozwa izakhiwo zazo ze-polymer.

2. I-Chemistry ye-Pelmerble Pelmer Powder

I-Chemistry ye-RDP ijikeleza ezungeze i-polymerization yama-monomer ukwakha ukuhlakazwa okuzinzile kwe-polymer, okuyomile ngokuhamba kwesikhathi ukuthola ifomu le-powder. Izici ezibalulekile ezithonya izakhiwo ze-RDPinclude:

Ukwakheka kwe-polymer: Ama-polymers ahlukene anikeza izakhiwo ezahlukahlukene njengokuguquguquka, ukunamathela kanye nokumelana kwamanzi. Isibonelo, ama-RPPs asuselwa ku-VAE-based adume ngokunamathela kwawo okuhle kakhulu kuma-substrates ahlukahlukene.

Ama-ejenti wokuwela: Ama-ejenti wokuwela angakhulisa ukumelana kwamanzi namandla okusebenza kwe-RPP. Ama-crosslinkers ajwayelekile afaka ama-polyfuctionatal aziridines kanye ne-di-isocyanates.

Izengezo: izengezo ezinjengezinto ezihlakazekile, ama-surfactants, nama-spripizers avame ukufakwa ukuthuthukisa ukuqina kokusakazwa, ukugeleza kwezakhiwo, nokuguquguquka kwe-rdpronconctions.

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Ukukhiqizwa kwe-RDP kufaka phakathi izigaba eziningana:

I-Polymerization: Ama-monomers anama-polymerwory kwisisombululo esilawulwa ngamanzi ngaphansi kwezimo ezilawulwayo ukwakha ukuhlakazwa kwama-polymer ezinzile.

Ukuguqulwa kwe-Post-Polymerization: Amakhemikhali angeziwe, anjengama-colloids avikelayo noma ama-cyerlinksers, angangezwa ukuze anciphise izakhiwo zokuhlakazeka kwe-polymer.

Ukuchobolwa kwesifutho: Ukuhlakazwa kwe-polymer kufakwe amaconsi amahle futhi omiswe emfuleni oshisayo womoya ukuze wakhe izinhlayiya eziqinile. Inqubo iqinisekisa ukugcinwa kwezakhiwo ze-polymer ngenkathi iguqula ukuhlakazwa kube yimpuphu egeleza mahhala.

4. Ukusetshenziswa kwe-polymer evuselelayo polymer powder

I-RDP ithola ukusetshenziswa okubanzi kwizimboni ezahlukahlukene kanye nezicelo:

Ukwakhiwa: I-RDP iyingxenye ebalulekile kwizinto zokwakha i-cementionary ezinjengezinamathelisa ama-tile, izinhlanganisela zokuzimela, izindunduma kanye nama-grouts. Kuthuthukisa ukunamathela, ukuguquguquka, ukumelana kwamanzi nokusebenza kwalezi zinhlaka.

Amapende nezimbobo: I-RDP ithuthukisa ukwakheka kwamafilimu, ukunamathela, kanye nokuqina kwamapende asuselwa emanzini kanye nezambatho. Iphinde isebenze njengesiguquli seRheology, ithuthukisa izakhiwo zohlelo lokusebenza zalezi zimbozo.

I-Textiles: Embonini yezindwangu, i-RDP isetshenziswa njenge-binder yezindwangu ezingeyona eyenziwe, ukuhlinzeka ngamandla, ukuguquguquka, nokuhlanza ukumelana nemikhiqizo yokugcina.

Izemithi: I-RDP isebenza njenge-stabilizer kanye ne-binter ekusungulweni kwemithi, inika amandla ukukhishwa okulawulwayo kanye ne-bioavailebility ethuthukisiwe yezithako ezisebenzayo.

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Ukusetshenziswa kwe-RDP kunikeza izinzuzo eziningi:

I-Adhesion ethuthukisiwe: I-RDP ithuthukisa ukunamathela kwezinto zokwakha kuma-substrate ahlukahlukene, okuholela kumabhondi aqinile futhi ahlala isikhathi eside.

Ukuguquguquka okuthuthukile: Ukungezwa kwe-RDP kudlulisela ukuguquguquka kokwakheka, ukunciphisa ubungozi bokuqhekeka kanye nokwenza ngcono ukuqina kwemikhiqizo okuphelele.

Ukumelana Amanzi: I-RDP ihlinzeka ngokumelana kwamanzi okuhle kakhulu, okwenza kube lula ukusetshenziswa kuzicelo zangaphandle nezindawo ezimanzi.

Ukusebenza: I-RDP ithuthukisa ukusebenziseka kanye nokusebenza kwezinto zokwakha, okuvumela uhlelo lokusebenza olulula kanye nokuqedwa okubushelelezi.

Ukusimama: I-RDP inika amandla ukwakhiwa kwemikhiqizo enobungani bemvelo ngokunciphisa ukusetshenziswa kwamabhayisikili endabuko kanye nokwenza ngcono isikhathi eside sezinto zokwakha.

6. Izitayela zesikhathi esizayo kanye nezinto ezintsha

Ikusasa le-RDP lilele ocwaningweni oluqhubekayo kanye nokwenziwa okusha ukuze luthuthukise izakhiwo zalo kanye nezicelo. Izindawo ezibalulekile zokugxila zifaka:

Ukuthuthukiswa kwezixazululo ezizinzile: Kuqhubeka imizamo yokuthuthukisa ukwakhiwa kwe-RDP kusetshenziswa izinto ezingavuselelwa ezivuselelekile nezinqubo ezinobungane zokunciphisa umthelela wezemvelo.

Izengezo Zomsebenzi Othuthukile: Ukufakwa kwezithasiselo ezithuthukile nama-nanomatadium angaphinde athuthukise izakhiwo ze-RDP, evumela izinhlelo ezintsha zokusebenza nokusebenza okuthuthukile.

Izakhi ezenziwe ngokwezifiso: Ukulungisa ukwakheka kwe-RDP ukufeza izidingo ezithile zohlelo lokusebenza kuzoqhubeka nokugxila, okuvumela ukuguquguquka okuguquguqukayo kanye nokusebenza kwezimboni ezahlukahlukene.

7. Isiphetho

I-PolyPressible Powder Powder evuselelayo idlala indima ebalulekile ezintweni zesimanje zokwakha, inikezela ukunamathela okuthuthukile, ukuguquguquka, ukumelana kwamanzi kanye nokusimama. Nge-Chemistry yayo eyingqayizivele, inqubo yokukhiqiza, kanye nezicelo eziguquguqukayo, i-RDP ilungele ukushayela okusha kanye nentuthuko ezimbonini ezahlukahlukene. Ngokuqonda i-Chemistry, inqubo yokukhiqiza, izinhlelo zokusebenza, kanye nezinzuzo ze-RDP, ababambiqhaza bangabopha amandla awo aphelele ukudala imikhiqizo eqinile, ephezulu yokusebenza ngekusasa eliqhubekayo.