Impembelelo yedosi ye-RDP kumandla okudibanisa i-putty kunye nokuxhathisa amanzi

I-Putty yinto esisiseko esetyenziswa ngokubanzi kwiiprojekthi zokuhlobisa izakhiwo, kwaye umgangatho wayo uchaphazela ngokuthe ngqo ubomi benkonzo kunye nomphumo wokuhlobisa we-coating eludongeni. Amandla okudibanisa kunye nokuchasana kwamanzi zizibonakaliso ezibalulekileyo zokuvavanya ukusebenza kwe-putty.I-latex powder enokuchithwa kwakhona, njenge-organic polymer modified material, idlala indima ephambili ekuphuculeni ukusebenza kwe-putty.

1. Inkqubo yesenzo somgubo welatex odityanisiweyo

I-latex powder ephinda iphinde idibaniswe ngumgubo owenziwe ngokutshiza ukomiswa kwe-polymer emulsion. Iyakwazi ukuphinda i-emulsify ukwenza inkqubo yokusabalalisa i-polymer ezinzile emva kokuqhagamshelana namanzi, edlala indima ekuphuculeni amandla okudibanisa kunye nokuguquguquka kwe-putty. Imisebenzi yayo ephambili ibandakanya:

Ukuphucula amandla okudibanisa: I-latex ephinda iphindwe kwakhona i powder yenza ifilimu ye-polymer ngexesha lenkqubo yokumisa i-putty, kwaye idibanisa kunye nezixhobo ze-inorganic gelling ukuphucula amandla okudibanisa ubuso.

Ukuphucula ukunganyangeki kwamanzi: I-Latex powder yenza inethiwekhi ye-hydrophobic kwisakhiwo se-putty, ukunciphisa ukungena kwamanzi kunye nokuphucula ukumelana kwamanzi.

Ukuphucula ukuguquguquka: kunokunciphisa i-brittleness ye-putty, ukuphucula amandla okuguqula, kunye nokunciphisa umngcipheko wokuqhekeka.

2. Isifundo sovavanyo

Izinto zokuvavanya

Izinto ezisisiseko: i-samente-based putty powder

I-latex powder enokuchithwa kwakhona: i-ethylene-vinyl acetate (EVA) i-copolymer latex powder

Ezinye izongezo: i-thickener, i-arhente yokugcina amanzi, i-filler, njl.

Indlela yokuvavanya

Iiputty ezineedosi ezahlukeneyo zomgubo we-latex ezidispersible (0%, 2%, 5%, 8%, 10%) zalungiswa ngokulandelelanayo, kwaye amandla abo okudibanisa kunye nokuxhathisa kwamanzi kwavavanywa. Amandla okubambisana anqunywe ngovavanyo lokukhupha, kwaye uvavanyo lokumelana namanzi luhlolwe ngumlinganiselo wokugcinwa kwamandla emva kokucwiliswa emanzini kwiiyure ze-24.

3. Iziphumo kunye nengxoxo

Isiphumo se-latex powder enokuphinda ihlakazwe kumandla okudibanisa

Iziphumo zovavanyo zibonisa ukuba ngokunyuka kwedosi ye-RDP, amandla okubopha i-putty abonisa umkhwa wokunyuka kuqala kwaye emva koko uzinzise.

Xa idosi ye-RDP inyuka ukusuka kwi-0% ukuya kwi-5%, amandla okubambisa i-putty aphuculwe kakhulu, kuba ifilimu ye-polymer eyenziwe yi-RDP iphakamisa amandla okudibanisa phakathi kwezinto ezisisiseko kunye ne-putty.

Qhubeka nokwandisa i-RDP ukuya ngaphezu kwe-8%, ukukhula kwamandla okudibanisa kudla ukuba tyaba, kwaye kuncipha kancinane kwi-10%, enokuthi ngenxa yokuba i-RDP egqithisileyo iya kuchaphazela isakhiwo esiqinileyo se-putty kunye nokunciphisa amandla ojongano.

Impembelelo ye-latex powder ephinda ihlakazwe ekuxhathiseni amanzi

Iziphumo zovavanyo lokunganyangeki kwamanzi zibonisa ukuba isixa se-RDP sinefuthe elibonakalayo kuxhathiso lwamanzi lweputty.

Amandla okudibanisa i-putty ngaphandle kwe-RDP yehla kakhulu emva kokucwiliswa emanzini, ebonisa ukuxhathisa kwamanzi.

Ukongezwa kwesixa esifanelekileyo se-RDP (5% -8%) kwenza i-putty ibe yimbumba exineneyo ye-organic-inorganic composite, iphucula ukuxhathisa kwamanzi, kwaye iphucula kakhulu izinga lokugcinwa kwamandla emva kweeyure ezingama-24 zokuntywiliselwa.

Nangona kunjalo, xa umxholo we-RDP udlula i-8%, ukuphuculwa kokuxhathisa kwamanzi kuncipha, okunokuthi kungenxa yokuba izinto ezininzi eziphilayo zinciphisa amandla okulwa ne-hydrolysis ye-putty.

Ezi zigqibo zilandelayo zinokuthathwa kuphando lovavanyo:

Isixa esifanelekileyo sei-latex powder enokuchithwa kwakhona(5% -8%) inokuphucula kakhulu amandla okudibanisa kunye nokuxhatshazwa kwamanzi kwe-putty.

Ukusetyenziswa ngokugqithiseleyo kwe-RDP (> 8%) kunokuchaphazela isakhiwo esiqinileyo se-putty, okukhokelela ekunciphiseni okanye ukuncipha ekuphuculeni amandla okudibanisa kunye nokuchasana kwamanzi.

Idosi efanelekileyo kufuneka iphuculwe ngokwemeko yesicelo esithile seputty ukufezekisa eyona bhalansi ilungileyo phakathi kokusebenza kunye neendleko.