Impembelelo yedosi ye-RDP kumandla okubopha i-putty kunye nokumelana namanzi

I-Putty sisixhobo esisisiseko esisetyenziswa kakhulu kwiiprojekthi zokuhombisa izakhiwo, kwaye umgangatho wayo uchaphazela ngokuthe ngqo ubomi benkonzo kunye nefuthe lokuhombisa kwengubo yodonga. Amandla okubopha kunye nokumelana namanzi zizibonakaliso ezibalulekileyo zokuvavanya ukusebenza kwe-putty.Umgubo welatex ophinda unyibilike, njengezinto eziguqulweyo zepolymer yendalo, idlala indima ephambili ekuphuculeni ukusebenza kwe-putty.

1. Indlela yokusebenza komgubo welatex ophinda uchitheke

Umgubo welatex ophinda udibane ngumgubo owenziwe ngokutshiza i-polymer emulsion. Ingaphinda ixutywe ukuze yenze inkqubo yokusasazwa kwepolymer ezinzileyo emva kokudibana namanzi, edlala indima ekuphuculeni amandla okubopha kunye nokuguquguquka kwe-putty. Imisebenzi yayo ephambili ibandakanya:

Ukuphucula amandla okubopha: Umgubo welatex ophinda udispozwe wenza ifilimu yepolymer ngexesha lenkqubo yokomisa i-putty, kwaye isebenzisana nezinto ze-gelling ezingaphiliyo ukuphucula amandla okubopha phakathi kwe-interfacial.

Ukuphucula ukumelana namanzi: Umgubo welatex wenza inethiwekhi engangeni manzi kwisakhiwo se-putty, nto leyo enciphisa ukungena kwamanzi kwaye iphucula ukumelana namanzi.

Ukuphucula ukuguquguquka: Kunganciphisa ukuqhekeka kwe-putty, kuphucule amandla okuguqulwa, kwaye kunciphise umngcipheko wokuqhekeka.

2. Uphononongo lovavanyo

Izixhobo zovavanyo

Izinto ezisisiseko: umgubo we-putty osekwe kwisamente

Umgubo welatex ophinda uchitheke: umgubo welatex we-ethylene-vinyl acetate (EVA) copolymer

Ezinye izongezo: isithambisi, iarhente yokugcina amanzi, isizalisi, njl.

Indlela yovavanyo

Iiputties ezineedosi ezahlukeneyo ze-latex powder eziphinda zichithwe (0%, 2%, 5%, 8%, 10%) zalungiswa ngokulandelelana, kwaye amandla azo okubopha kunye nokumelana namanzi kwavavanywa. Amandla okubopha amiselwa ngovavanyo lokutsalwa, kwaye uvavanyo lokumelana namanzi lwavavanywa ngesantya sokugcina amandla emva kokuntywiliselwa emanzini iiyure ezingama-24.

3. Iziphumo kunye nengxoxo

Impembelelo yomgubo welatex ophinda uchitheke ngamandla okubopha

Iziphumo zovavanyo zibonisa ukuba ngokonyuka kwedosi ye-RDP, amandla okubopha e-putty abonisa umkhwa wokunyuka kuqala uze uzinze.

Xa idosi ye-RDP inyuka ukusuka kwi-0% ukuya kwi-5%, amandla okubopha e-putty aphucuka kakhulu, kuba ifilimu ye-polymer eyenziwe yi-RDP yonyusa amandla okubopha phakathi kwezinto ezisisiseko kunye ne-putty.

Qhubeka unyusa i-RDP iye ngaphezulu kwe-8%, ukukhula kwamandla okubopha kudla ngokuba tyaba, kwaye kuncipha kancinci kwi-10%, oku kusenokuba kungenxa yokuba i-RDP egqithisileyo iya kuchaphazela ulwakhiwo oluqinileyo lwe-putty kwaye inciphise amandla e-interface.

Impembelelo yomgubo welatex ophinda unyibilike ekungangeni kwamanzi

Iziphumo zovavanyo lokumelana namanzi zibonisa ukuba ubungakanani be-RDP bunempembelelo enkulu ekumelaneni namanzi kwe-putty.

Amandla okubopha e-putty ngaphandle kwe-RDP anciphe kakhulu emva kokuntywila emanzini, nto leyo ebonisa ukungaxhathisi kakuhle kwamanzi.

Ukongezwa kwesixa esifanelekileyo se-RDP (5%-8%) kwenza i-putty ibe yi-composite exineneyo ye-organic-inorganic, iphucula ukumelana namanzi, kwaye iphucula kakhulu izinga lokugcina amandla emva kweeyure ezingama-24 zokuntywiliselwa.

Nangona kunjalo, xa umxholo we-RDP udlula i-8%, ukuphucuka kokumelana namanzi kuyancipha, okusenokuba kungenxa yokuba izinto ezininzi eziphilayo zinciphisa amandla okulwa ne-hydrolysis ye-putty.

Ezi zigqibo zilandelayo zinokuthathwa kuphando oluvavanyiweyo:

Isixa esifanelekileyoumgubo welatex ophinda unyibilike(5%-8%) inokuphucula kakhulu amandla okubopha kunye nokumelana kwamanzi kwe-putty.

Ukusetyenziswa kakhulu kwe-RDP (>8%) kunokuchaphazela ulwakhiwo oluqinileyo lwe-putty, okubangela ukwehla okanye ukuncipha kokuphuculwa kwamandla okubopha kunye nokumelana namanzi.

Idosi efanelekileyo kufuneka iphuculwe ngokwemeko ethile yokusetyenziswa kwe-putty ukuze kufezekiswe ibhalansi engcono phakathi kokusebenza kunye neendleko.