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 angandiswa kakhulu ngemva kokwengezaezihlakazeka kabushai-polymerimpushana,kodwa amandla okucindezela awazange athuthukiswe kakhulu noma ehle. Ngenxa yokuqina komphumelaezihlakazeka 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 sokuncipha ngokuvamile singenxa 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