Ngokusho kwesilinganiso esihlukile, ukusetshenziswa kwei-polymer powder ehlakazeka kabushaukuguqula iudaka olomile oluxubileingathuthukisa amandla ebhondi ngama-substrates ahlukahlukene, futhi ithuthukise ukuguquguquka nokukhubazeka kodaka, amandla okugoba, ukumelana nokugqoka, ukuqina, amandla okubopha kanye nokuminyana, amandla okugcina amanzi nokusebenza.
Inani elikhulu lokuhlola libonisa ukuthi inani leRDimpushanaayingcono kakhulu.Uma okuqukethwe kwe-RD powder kuphansi kakhulu, kudlala kuphela umphumela we-plasticizing, kodwa umphumela wokuthuthukisa awubonakali.Lapho inani leI-RD powderinkulu kakhulu, amandla azokwehla.Kuphela uma okuqukethwe kwe-RD powder kulinganisiwe, akugcini nje ukwandisa ukumelana nokuguqulwa, kuthuthukisa amandla okuqina namandla esibopho, kodwa futhi kuthuthukisa ukuvuthwa nokumelana nokuqhekeka.Isilinganiso somcako nesihlabathi, isilinganiso samanzi nosimende, ukuhlukaniswa kanye nohlobo lwe-aggregate, nezici ze-aggregate ekugcineni kuzothinta ukusebenza okuphelele komkhiqizo.
Umthelela weezihlakazeka kabushai-lateximpushanaemandleni odaka ukuthi amandla aqinile kanye namandla aguquguqukayo odaka angakhula kakhulu ngemva kokwengezaezihlakazeka kabushai-polymerimpushana,kodwa amandla okucindezela awazange athuthukiswe kakhulu noma ehle.Ngenxa yokuqina komphumela weezihlakazeka kabushai-polymerimpushana, amandla okuqina angaphakathi namandla okubopha okuhlangene kodaka ayathuthukiswa, futhi amandla okuqina okubopha phakathi kodaka nesubstrate athuthukiswa kakhulu.
Ukuqhekeka kwezinto eziqinile kubangelwa ukwehluleka kokuqina, lapho ingcindezi ye-tensile idlula inani layo lamandla okuqina, ukuqhekeka kuzokwenzeka.Ngakho-ke, ukuba nenani eliphezulu lamandla okuqina kuyisimo esidingekayo sokumelana nokuqhekeka.
Imiphumela ibonisa ukuthi amandla okuqina odaka lukasimende oshintshiwe nge-polymer ngokuvamile akhuphuka kuqala bese ehla ngokunyuka kwesilinganiso sikasimende nosimende, okubonisa ukuthi kunobubanzi obuhle bokuxutshwa.Isizathu sokwehla ngokuvamile kungenxa yokwengezwa ngokweqilei-emulsion powder ehlakazeka kabushaokuholela ekwethulweni kwamabhamuza amaningi, okuholela ekwehleni kwamandla okucindezela.Ngakho-ke, amandla okucindezela kufanele athuthukiswe ngokulungisa isilinganiso se-lime nesihlabathi, amanzi kusimende, ukuhlukaniswa kwe-aggregate kanye nohlobo lwe-aggregate.Ukuthuthukiswa kwamandla aqinile, amandla aguquguqukayo, ukuguquguquka, ukumelana nokuqhekeka kanye ne-hydrophobicity kungafinyelelwa ngokungezaezihlakazeka kabushai-lateximpushana, kodwa uma kunezelwa kakhulu, kuba ngcono.Uma okuqukethwe kwempushana yerabha kuphansi kakhulu, idlala kuphela umphumela we-plasticizing, kodwa umphumela wokuthuthukisa awubonakali.Uma inani lempushana ehlakazeka kabusha likhulu kakhulu, amandla azokwehla.Kuphela uma okuqukethweezihlakazeka kabushaimpushanaiphakathi, ayigcini nje ngokukhuphula ukumelana ne-deformation, amandla e-tensile namandla ebhondi, kodwa futhi ithuthukisa ukuvuthwa kanye nokumelana nokuqhekeka.Isilinganiso somcako nesihlabathi, isilinganiso samanzi nosimende, ukuhlukaniswa kanye nohlobo lwe-aggregate, nezici ze-aggregate ekugcineni kuzothinta ukusebenza okuphelele komkhiqizo.
Isikhathi sokuthumela: Feb-26-2024