Mmetụta Emulsion ntụ ntụ na-agbanwe agbanwe na Slurry Structure

Uzuzu latex redispersible bụ ihe a na-ejikarị gelling organic enwetara site na ịsasa polymer emulsion na mmanya polyvinyl dị ka colloid nchebe.Enwere ike ịgbasa ya ọzọ na mmiri ka ọ bụrụ emulsion mgbe ọ zutere mmiri.Ịtinye uzuzu latex na-agbanwe agbanwe nwere ike melite arụmọrụ nke ngwa ngwa ciment agwakọtara ọhụrụ.

Ozugbo ihe simenti agbakwunyere na mmiri latex ntụ ntụ na-ejikọta mmiri, mmeghachi omume hydration na-amalite, na calcium hydroxide ngwọta ngwa ngwa na-erute saturation na kristal na-ebuli, ma n'otu oge ahụ, a na-emepụta kristal ettringite na calcium silicate hydrate gels.A na-edobe ihe ndị siri ike na gel na akụkụ ciment na-adịghị edozi.Ka mmeghachi omume hydration na-aga n'ihu, ngwaahịa hydration na-abawanye, na ihe ndị na-emepụta polymer na-eji nwayọọ nwayọọ na-agbakọta na pores capillary, na-emepụta akwa akwa akwa akwa n'elu gel na n'elu cement na-adịghị edozi.Ihe nchịkọta polymer gbakọtara jiri nwayọọ nwayọọ na-ejupụta pores, ma ọ bụghị kpamkpam n'ime ime nke pores.Ka mmiri na-ebelata site na hydration ma ọ bụ ihicha, ihe ndị ahụ polymer juru n'ọnụ na gel na pores na-ejikọta n'ime ihe nkiri na-aga n'ihu, na-emepụta ngwakọta na-ejikọta ya na ciment cement hydrated ma na-eme ka hydration na-ejikọta ngwaahịa na nchịkọta.

N'ihi na ngwaahịa hydration na polymers na-etolite oyi akwa mkpuchi na interface, ọ nwere ike imetụta uto nke ettringite na kristal calcium hydroxide na-enweghị isi;na n'ihi na ndị polymer na-agbakọta n'ime ihe nkiri na pores nke mpaghara mgbanwe interface, ihe ndị dabeere na ciment polymer Mpaghara mgbanwe dị njọ.Ndị otu na-arụ ọrụ na ụfọdụ mkpụrụ ndụ polymer ga-emepụtakwa mmeghachi omume na-ejikọta ya na Ca2 + na A13 + na ngwaahịa hydration ciment iji mepụta njikọ akwa pụrụ iche, melite nhazi anụ ahụ nke ihe ndị dabeere na ciment siri ike, na-ebelata nrụgide dị n'ime, ma belata ọgbọ nke microcracks.

Ka usoro ciment gel na-etolite, a na-eri mmiri ahụ ma na-eji nwayọọ nwayọọ na-emechi ihe ndị ahụ polymer na pores.Ka simenti na-agbakwu mmiri, mmiri dị na pores capillary na-ebelata, na ihe ndị ahụ polymer na-agbakọta n'elu nke ngwaahịa ciment hydration gel / unhydrated cement particle ngwakọta na mkpokọta, si otú ahụ na-etolite na-aga n'ihu na-akpachi anya oyi akwa na nnukwu pores jupụtara. na nnyapade ma ọ bụ onwe-nrapado ụmụ irighiri ihe.

The chụgara emulsion nke redispersible latex ntụ ntụ nwere ike na-etolite a mmiri-adịghị ike na-aga n'ihu film (polymer netwọk ahụ) mgbe ihicha, na nke a ala na-agbanwe modulus polymer netwọk ahụ nwere ike melite arụmọrụ nke ciment;N'otu oge ahụ, na polymer molecule Ụfọdụ polar dị iche iche na simenti na-emeghachi omume chemically na ciment hydration ngwaahịa na-emepụta àkwà mmiri pụrụ iche, melite nhazi anụ ahụ nke ciment hydration ngwaahịa, na ibelata ma belata ọgbọ nke cracks.Mgbe agbakwunyere uzuzu latex redispersible, mmalite hydration nke ciment na-ebelata, ihe nkiri polymer nwere ike kechie akụkụ ciment ma ọ bụ kpamkpam, nke mere na ciment nwere ike ịmịcha ya nke ọma na ihe dị iche iche nwere ike imeziwanye ya.