ntụ ntụ latex na ciment na-agbanwe agbanwe bụ isi njikọ na ihe na-emepụta ihe nkiri nke putty na-eguzogide mmiri. Ụkpụrụ na-eguzogide mmiri bụ:
N'oge ngwakọta nke redispersible latex ntụ ntụ na ciment, na latex ntụ ntụ na-anọgide na-eweghachite na mbụ emulsion ụdị, na latex irighiri na- uniformly chụsasịrị n'ime ciment slurry. Mgbe simenti ahụ zutere mmiri, mmeghachi omume hydration na-amalite, ihe ngwọta Ca (OH) 2 jupụtara na kristal na-ebuli elu, na kristal ettringite na hydrated calcium silicate colloids na-etolite n'otu oge ahụ, a na-edobe akụkụ latex na gel na gel. mmiri na-adịghị. na akụkụ ciment.
Site na ọganihu nke mmeghachi omume hydration, ngwaahịa hydration na-aga n'ihu na-abawanye, na akụkụ nke latex ji nwayọọ nwayọọ na-agbakọta na oghere nke ihe ndị na-emepụta ihe dị ka ciment, ma na-etolite akwa akwa akwa n'elu ciment gel. N'ihi na-eji nwayọọ nwayọọ belata akọrọ mmiri mmiri, na redispersed latex ụmụ irighiri ihe tightly juru n'ọnụ na gel na voids mkpokọta na-etolite a na-aga n'ihu nkiri, na-akpụ a ngwakọta na ciment mado interpenetrating matrix, na-eme ka ciment mado na ndị ọzọ ntụ ntụ ọkpụkpụ glued ibe ha. . N'ihi na ihe ndị ahụ latex na-ejikọta ma na-etolite ihe nkiri na mpaghara mgbanwe ihu igwe nke ciment na ntụ ntụ ndị ọzọ, mpaghara ntụgharị ihu nke usoro putty siri ike karị, si otú ahụ na-eme ka mmiri na-eguzogide ya.
N'otu oge ahụ, otu ndị na-arụ ọrụ na-emepụta site na redispersible latex ntụ ntụ mgbe redispersion, dị ka monomer methacrylic acid arụ ọrụ ewepụtara n'oge njikọ nke emulsion, nwere otu carboxyl, nke nwere ike ịgafe njikọ na Ca2 +, Al3+, wdg na. ciment arọ calcium hydration ngwaahịa. , na-etolite njikọ akwa pụrụ iche, melite nhazi anụ ahụ nke ngwa ngwa ciment siri ike, ma welie kọmpatness nke interface putty. Ihe nkiri latex na-agbasasị agbasa na-etolite ihe nkiri na-aga n'ihu na nnukwu n'ime oghere nke sistemu putty.
Oge nzipu: Nov-01-2022