Ukusetyenziswa kweI-latex powder efumaneka kwakhona (RDP) kwi-putty powder formulations iye yafumana ingqalelo kumashishini okwakha kunye nezixhobo zokwakha ngenxa yempembelelo yayo ebalulekileyo kwiipropati zemveliso yokugqibela. I-latex powders ekwazi ukuphinda iphinde iphinde ikwazi ukwenza umgubo oxutywe namanzi. Ezi dispersions zinika iimpawu ezahlukeneyo eziluncedo kwi-putty, kubandakanywa ukunamathela okuphuculweyo, ukuguquguquka, ukuxhathisa kwamanzi, kunye, ngokubalulekileyo, inkqubo yokuqina.
Ukuqonda iPutty Powder kunye neLatex Powder eDispersible
I-Putty powder yimveliso esekwe ngumgubo esetyenziswa ikakhulu ukugcwalisa izikhewu, ukugudisa umphezulu, kunye nokulungiselela iisubstrates zokupeyinta okanye ezinye izinto ezigqityiweyo. Ukwakheka okusisiseko komgubo weputty ngokuqhelekileyo kubandakanya izibophelelo (umzekelo, isamente, igypsum), izihluzi (umz., talc, calcium carbonate), kunye nezongezelelo (umz., iiretarders, accelerators) ezilawula iimpawu zayo zokusebenza. Xa ixutywe namanzi, i-putty powder yenza intlama eqina ngokuhamba kwexesha, idala indawo ehlala ihleli, egudileyo.
I-redispersible latex powder (RDP) i-polymer powder e-soluble yamanzi eyenziwe ngokutshiza-yomisa i-aqueous dispersions ye-polymer emulsions. Iipolymers eziqhelekileyo ezisetyenziswa kwi-RDP ziquka i-styrene-butadiene (SBR), i-acrylics, kunye ne-vinyl acetate-ethylene (VAE). Ukongezwa kwe-RDP kwi-putty powder kuphucula iimpawu ezibonakalayo kunye nezobugcisa ze-putty ephilileyo, ngokukodwa ngokuphucula amandla ebhondi, ukuguquguquka, kunye nokuchasana nokuqhekeka.
Ukuqina kwePutty Powder
Ukuqina komgubo weputty kwenzeka njengoko amacandelo e-binder (njengesamente okanye igypsum) afumana ukusabela kweekhemikhali ngamanzi. Inkqubo ngokuqhelekileyo ibizwa ngokuba yi-hydration (ye-sement-based putties) okanye i-crystallization (ye-gypsum-based putties), kwaye iphumela ekubunjweni kwezigaba eziqinileyo eziqina ngokuhamba kwexesha. Nangona kunjalo, le nkqubo inokuphenjelelwa luluhlu lwezinto, ezifana nobukho bezongezo, ukufuma, ubushushu, kunye nokwakheka kweputty ngokwayo.
Indima ye-RDP kule nkqubo yokuqina kukuphucula ukudibanisa phakathi kweengqungquthela, ukuphucula ukuguquguquka, nokulawula ukukhuphuka kwamanzi. I-RDP isebenza njengesibophelelo esithi, xa iphinde yasasazwa emanzini, yenza inethiwekhi yepolymeric ngaphakathi kweputty. Olu nxibelelwano lunceda ukubambisa iimolekyuli zamanzi ixesha elide, lucotha isantya sokuvela komphunga kwaye ngaloo ndlela lwandise ixesha lokusebenza kwe-putty. Ukongeza, inethiwekhi yepolymer inceda ukwenza ubunzima obuqinileyo, obubambene ngakumbi ngokuphucula ukusebenzisana kwamasuntswana.
Impembelelo yeLatex Powder eDispersible kwiNkqubo yoQiniso
Ukuphuculwa kokuSebenza kunye nexesha elivuliweyo:
Ukufakwa kwe-RDP kwi-putty formulations kwandisa ukusebenza ngokucotha inkqubo yokomisa, ukunika ixesha elingakumbi lokufaka isicelo. Oku kunenzuzo ngakumbi kwiiprojekthi ezinkulu apho i-putty kufuneka isasazwe kwiindawo ezibanzi ngaphambi kokuba ibekwe.
Ukwandiswa koBubhetyebhetye:
Enye yeempembelelo ezibalulekileyo zokongeza i-RDP kukuphucula ukuguquguquka. Ngelixa i-putty yesiko ithanda ukuba brittle xa iqina, i-RDP inegalelo kwisixhobo esithambileyo esinyangekileyo, inciphisa ukubakho kokuqhekeka phantsi koxinzelelo okanye ukuguquguquka kobushushu.
Ukomelela kunye noKuhlala ixesha elide:
I-putty eguqulweyo ye-RDP ibonisa amandla aphezulu okucinezela kunye nokuchasana nokunxiba kunye nokukrazula xa kuthelekiswa nokwakheka okungaguqukiyo. Oku kubangelwa ukubunjwa kwe-matrix ye-polymer eyomeleza ukunyaniseka kwesakhiwo se-putty eqinile.
Ukucutheka okuNcitshisiweyo:
Inethiwekhi ye-polymeric eyenziwe yi-latex powder ephinda iphinde iphinde incede ekunciphiseni i-shrinkage ngexesha lokunyanga. Oku kubaluleke kakhulu ekuthinteleni ukubunjwa kweentanda, ezinokuthi ziphazamise ukusebenza kunye nobuhle be-putty.
Ukumelana naManzi:
Umgubo weputty oxutywe nomgubo welatex ophinda uhlakazwe uye uthande ukungenwa ngamanzi. Amasuntswana e-latex enza umaleko we-hydrophobic ngaphakathi kwe-putty, okwenza ukuba imveliso enyangisiweyo ingathinteki ekufunxeni kwamanzi kwaye, ngenxa yoko, ifanelekele usetyenziso lwangaphandle.
Ukubandakanya i-latex powder edibeneyo kwi-putty formulations iphucula kakhulu iimpawu zayo, ngakumbi ngexesha lenkqubo yokuqina. Iinzuzo eziphambili ze-RDP ziquka ukuphuculwa kokusebenza, ukuguquguquka okuphuculweyo, ukonyuka kwamandla kunye nokuqina, ukunciphisa ukucutheka, kunye nokuchasana kwamanzi okungcono. Olu phuculo lwenza ukuba iiputty ezilungisiweyo ze-RDP zifaneleke ngakumbi kuzo zombini izicelo zangaphakathi nangaphandle, zibonelela ubomi obude kunye nokusebenza phantsi kweemeko ezahlukeneyo zokusingqongileyo.
Kubasebenzi bokwakha kunye nabavelisi, ukusetyenziswa kwei-latex powder enokuchithwa kwakhona inika indlela elula kodwa esebenzayo yokuphucula iimpawu ze-putty powders zendabuko, ezikhokelela kwimveliso ekulula ukuyisebenzisa, ehlala ixesha elide, kwaye ayifuni ukuqhekeka okanye ukushwabana ngexesha. Ngokulungisa ukuqulunqwa kunye ne-RDP, i-putty powders iba yinto eguquguqukayo, kunye nokusebenza okuphuculweyo ngokubanzi ngokunamathela, ukuqina, kunye nokuchasana nezinto.
Ixesha lokuposa: Mar-20-2025