I-Emulsion kanye ne-latex powder ehlakazeka kabusha ingakha amandla aphezulu okuqinile namandla okubopha ezintweni ezahlukahlukene ngemuva kokwakhiwa kwefilimu, asetshenziswa njengesibophezelo sesibili odakeni ukuze kuhlanganiswe nosimende, usimende kanye ne-polymer ngokulandelana. ukusebenza kodaka.
Ngokubheka ukwakheka kwe-microstructure ye-polymer-cement composite material, kunenkolelo yokuthi ukungezwa kwe-latex powder ehlakazekayo kungenza i-polymer ibe ifilimu futhi ibe yingxenye yodonga lwembobo, futhi yenze udaka lwakhiwe lonke ngokusebenzisa amandla angaphakathi, okuthuthukisa amandla angaphakathi odaka.Amandla e-polymer, ngaleyo ndlela athuthukise ingcindezi yokwehluleka kodaka futhi akhulise ubunzima bokugcina.
I-microstructure ye-polymer odakeni ayizange ishintshe isikhathi eside, futhi igcina ukuhlangana okuzinzile, amandla aguquguqukayo kanye nokucindezela, kanye ne-hydrophobicity enhle.Indlela yokwakheka yempushana ye-latex ehlakazeka kabusha emandleni okunamathela kuthayela yathola ukuthi ngemva kokuba i-polymer yomile ibe ifilimu, ifilimu ye-polymer yakha uxhumano oluguquguqukayo phakathi kodaka nethayela ngakolunye uhlangothi, futhi ngakolunye uhlangothi, i-polymer udaka olusha Khulisa okuqukethwe komoya odakeni futhi kuthinte ukwakheka nokumanzisa kwendawo, bese kuthi phakathi nenqubo yokubeka, i-polymer ibe nomthelela ongcono enqubweni ye-hydration kanye nokushwabana kukasimende ku-binder, okuzoba nomthelela. ekuthuthukiseni amandla ebhondi anosizo olungcono.
Ukwengeza impushana ye-latex ehlakazeka kabusha odakeni kungathuthukisa ngokuphawulekayo amandla okubopha nezinye izinto, ngoba i-hydrophilic latex powder kanye nesigaba esiwuketshezi sokumiswa kukasimende singena ezimbotsheni nasemacapillari e-matrix, futhi i-latex powder ingena ezimbotsheni nasemacapillari. .Ifilimu yangaphakathi iyakhiwa futhi ikhangiswe ngokuqinile ebusweni be-substrate, ngaleyo ndlela iqinisekise amandla esibopho esihle phakathi kwezinto zikasimende ne-substrate.
Ukulungiswa kwe-latex powder ekusebenzeni kodaka kungenxa yokuthi i-latex powder iyi-polymer ephezulu yamangqamuzana enamaqembu e-polar.Uma i-latex powder ixutshwa nezinhlayiya ze-EPS, ingxenye engeyona i-polar ochungechungeni oluyinhloko lwe-latex powder polymer izokwenza Ukukhangisa ngokomzimba kuzokwenzeka nge-non-polar surface ye-EPS.Amaqembu e-polar ku-polymer aqondiswe ngaphandle ebusweni bezinhlayiya ze-EPS, ukuze izinhlayiya ze-EPS zishintshe ukusuka ku-hydrophobicity kuya ku-hydrophilicity.Ngenxa yokuguqulwa kobuso bezinhlayiya ze-EPS nge-latex powder, ixazulula inkinga yokuthi izinhlayiya ze-EPS zivezwa kalula emanzini.Ukuntanta, inkinga yokwendlaleka okukhulu kodaka.Ngalesi sikhathi, lapho usimende wengezwa futhi uxutshwe, amaqembu e-polar adsorbed ebusweni bezinhlayiya ze-EPS asebenzisana nezinhlayiya ze-cement futhi ahlangane eduze, ukuze ukusebenza kwe-EPS insulation mortar kuthuthukiswe kakhulu.Lokhu kubonakala eqinisweni lokuthi izinhlayiya ze-EPS zimanziswa kalula ngokunamathisela usimende, futhi amandla okubopha phakathi kokubili athuthukiswa kakhulu.
Isikhathi sokuthumela: Mar-18-2023