Polima ntụ ntụ na-agbanwe agbanwebụ ntụ ntụ na-acha ọcha polymer na-enweghị onwe ya nke nwere ike ịmegharị ngwa ngwa ma gbasaa n'ime mmiri iji mepụta emulsion kwụsiri ike. Enwere ike ịgwakọta ya na ihe ndị ọzọ na-eme ntụ ntụ dị ka ciment, ájá, nchịkọta dị arọ, wdg na ụlọ ọrụ mmepụta ihe dị ka akụkụ ụfọdụ dị na ala akọrọ iji nweta ihe dị elu ma dị mfe iji ciment akọrọ-agwakọta ngwa agha, nke nwere ike ibelata ihe owuwu na saịtị. Njehie na adịghị mma mgbe ị na-agwakọta ma na-atụ na emulsion.
Ọrụ isii nke ntụ ntụ polymer redispersible:
1. Meziwanye ike nrapado na njikọta
Na simenti akọrọ ngwa agha ngwaahịa, ọ dị oké mkpa ka ịgbakwunye dispersible polymer ntụ ntụ. O doro anya na ọ ga-emeziwanye ike njikọ na njikọta nke ihe. Nke a bụ n'ihi ntinye nke mkpụrụ ndụ polymer n'ime pores na capillaries nke matrix ciment, na ịmepụta ike dị mma na ciment mgbe hydration gasịrị. N'ihi mma mmachi nke polymer resin n'onwe ya, ọ nwere ike melite adhesion nke ciment ngwa agha ngwaahịa na substrates, karịsịa inorganic binders dị ka ciment na-njikọ na organic substrates dị ka osisi, eriri, PVC na EPS. Ọganihu nke arụmọrụ adịghị mma nwere mmetụta doro anya karị.
2. Meziwanye nkwụsị na nkwụsị nkwụsị
N'ime skeleton siri ike nke hydration nke ciment kpụpụtara, ihe nkiri polymer na-agbanwe ma sie ike. N'etiti mkpụrụ osisi ciment ciment, ọ na-arụ ọrụ dị ka nkwonkwo na-ebugharị, nke nwere ike iguzogide ibu nrụrụ dị elu ma belata nrụgide, na-eme ka ọkpụkpụ na-agbagọ na-eme ka ọ dịkwuo mma.
3. Meziwanye nguzogide mmetụta
polymer ntụ ntụ na-agbanwe agbanwe, resin thermoplastic. Ọ bụ ihe nkiri dị nro nke a na-ekpuchi n'elu akụkụ nke ngwa agha ahụ, nke nwere ike ịmịnye mmetụta nke ike mpụga ma zuru ike na-enweghị imebi, si otú ahụ na-eme ka nkwụsị mmetụta nke ngwa agha dịkwuo mma.
4, melite hydrophobicity ma belata nnabata mmiri
Ịgbakwunye ntụ ntụ polymer na-ekesa nwere ike melite microstructure nke ngwa ngwa ciment. Polymer ya na-etolite netwọk a na-apụghị ịgbagha agbagha na usoro nke ciment hydration, na-emechi capillary na ciment gel, na-egbochi mmịnye mmiri, na-egbochi ịbanye na mmiri, si otú ahụ na-eme ka enweghị ike.
5. Meziwanye ihe mgbochi na-eyi na ịdịte aka
Mgbakwunye nke ntụ ntụ polymer na-ekesa nwere ike ime ka njikọ siri ike dị n'etiti mkpụrụ osisi ciment na ihe nkiri polymer. Nkwalite nke ike jikọtara ọnụ na-eme ka ike nke ngwa agha na-eguzogide nrụgide siri ike, nke mere na ọnụ ọgụgụ ejiji na-ebelata, nkwụsị nke uwe na-eme ka ọ dịkwuo mma, na ndụ ọrụ nke ngwa agha na-adịte aka.
6. Melite nkwụsi ike nke ifriizi-na-egbochi ma gbochie mgbawa ihe nke ọma
Uzuzu polymer na-emegharị emegharị, plasticity nke resin thermoplastic, nwere ike imeri mmebi nke mgbasawanye ọkụ na mkpirisi nke mgbanwe mgbanwe okpomọkụ na ihe simenti ngwa ngwa. Na-emeri adịghị ike nke ciment ciment dị mfe na nnukwu ihicha shrinkage deformation na mfe cracking, ọ nwere ike ime ka ihe na-agbanwe agbanwe, si otú ahụ na-eme ka ogologo oge kwụsie ike nke ihe onwunwe.
Oge nzipu: Ọktoba 28-2022