Polymer ntụ ntụ nwere ike agbasa (RDP)bụ elu molekụla polymer ntụ ntụ, na-emekarị site na polymer emulsion site ịgba ihicha. Ọ nwere ihe onwunwe nke redispersibility na mmiri ma na-ejikarị arụ ọrụ, mkpuchi, adhesives na ubi ndị ọzọ. Usoro ọrụ nke Redispersible Polymer Powder (RDP) bụ nke a na-enweta nke ọma site n'ịgbanwe ihe ndị dabeere na ciment, melite ike njikọ, na imeziwanye arụmọrụ ihe owuwu.
1. Ihe mejupụtara na akụrụngwa nke Redispersible Polymer Powder (RDP)
Ngwakọta bụ isi nke Redispersible Polymer Powder (RDP) bụ polymer emulsion, nke a na-emekarị polymerized site na monomers dị ka acrylate, ethylene, na vinyl acetate. Ụmụ irighiri ihe ndị a na-emepụta ihe dị mma site na emulsion polymerization. N'oge usoro ịgbasa mmiri, a na-ewepụ mmiri ka ọ bụrụ ntụ ntụ amorphous. Ndị a powders nwere ike redispersed na mmiri na-etolite ike polymer dispersions.
Isi njirimara nke Polymer Powder (RDP) gụnyere:
Mmiri solubility na redispersibility: Ọ nwere ike ngwa ngwa gbasasịa na mmiri na-etolite otu edo polymer colloid.
Ngwongwo anụ ahụ emelitere: Site n'ịgbakwunye Redispersible Polymer Powder (RDP), ike njikọ, ike nkwụsị na mmetụta mmetụta nke ngwaahịa dị ka mkpuchi na ngwa agha na-akawanye mma.
Mgbochi ihu igwe na nguzogide kemịkalụ: Ụfọdụ ụdị Redispersible Polymer Powder (RDP) nwere ezigbo iguzogide ụzarị UV, mmiri na corrosion kemịkalụ.
2. Usoro ọrụ nke Redispersible Polymer Powder (RDP) na ihe ndị sitere na ciment.
Ike njikọta emelitere Ọrụ dị mkpa nke Redispersible Polymer Powder (RDP) na-arụ n'ihe ndị sitere na ciment bụ ịkwalite ike njikọ ya. Mmekọrịta dị n'etiti ciment tapawa na polymer mgbasa usoro na-enyere polymer ahụ ike n'ụzọ dị irè na-rapara n'elu nke ciment ahụ. Na microstructure nke ciment mgbe hardening, polymer ụmụ irighiri na-eme ka bonding ike n'etiti ciment irighiri site interfacial omume, si otú ime ka bonding ike na compressive ike nke simenti dabeere ihe.
Mgbanwe mgbanwe na mgbawa mgbape Redispersible Polymer Powder (RDP) nwere ike imezi mgbanwe nke ihe ndị sitere na ciment. Mgbe ihe ndị sitere na ciment na-akpọnwụ ma sie ike, mkpụrụ ndụ polymer na tapawa ciment nwere ike ịmepụta ihe nkiri iji mee ka ihe ahụ sie ike. N'ụzọ dị otú a, ngwa ngwa ciment ma ọ bụ kọmpat adịghị adịkarị mfe mgbawa mgbe a na-etinye ya n'ime ike ndị dị n'èzí, nke na-eme ka nkwụsị mgbawa dịkwuo mma. Tụkwasị na nke ahụ, ịmepụta ihe nkiri polymer nwekwara ike imeziwanye mgbanwe nke ihe ndị dabeere na ciment na gburugburu ebe obibi (dịka mgbanwe iru mmiri, mgbanwe okpomọkụ, wdg).
Ịgbanwe ịrụ ọrụ ihe owuwu Ihe mgbakwunye nke ntụ ntụ gluu na-agbanwe agbanwe nwekwara ike imeziwanye arụmọrụ ihe owuwu nke ihe ndị sitere na ciment. Dịka ọmụmaatụ, ịgbakwụnye ntụ ntụ gluu na ngwa ngwa agwakọtara akpọnwụ nwere ike ime ka arụmọrụ ya dịkwuo mma ma mee ka usoro ihe owuwu ahụ dịkwuo nro. Karịsịa na usoro dị ka eserese mgbidi na tapawa tile, a na-eme ka mmiri dị na mmiri na-ejide mmiri nke slurry, na-ezere ọdịda njikọ nke mmiri na-adịghị agwụ agwụ.
Ịkwalite nguzogide mmiri na ịdịte aka Ịmepụta ihe nkiri polymer nwere ike igbochi ntinye mmiri nke ọma, si otú a na-eme ka mmiri na-eguzogide ihe. N'ebe ụfọdụ iru mmiri ma ọ bụ mmiri na-ekpuchi mmiri, mgbakwunye nke polymers nwere ike igbu oge usoro ịka nká nke ihe ndị dabeere na ciment ma melite arụmọrụ ha ogologo oge. Tụkwasị na nke ahụ, ọnụnọ nke polymers nwekwara ike imeziwanye nkwụsị ntu oyi nke ihe onwunwe, nguzogide corrosion nke kemịkalụ, wdg, ma mee ka ihe owuwu ụlọ dịkwuo ogologo.
3. Ngwa nke Redispersible Polymer Powder (RDP) na mpaghara ndị ọzọ
Ngwa ngwa agwakọta akọrọ Na ngwa ngwa agwakọta akọrọ, mgbakwunye nke Redispersible Polymer Powder (RDP) nwere ike ime ka adhesion, nkwụsị mgbawa na ịrụ ọrụ nke ngwa agha ahụ. Karịsịa na mpaghara nke mpụta mgbidi mkpuchi usoro, tile bonding, wdg, na-agbakwunye kwesịrị ekwesị ego nke Redispersible Polymer Powder (RDP) na akọrọ-agwakọta ngwa agha usoro nwere ike budata mma workability na ewu àgwà nke ngwaahịa.
Ihe mkpuchi ihe owuwu Redispersible Polymer Powder (RDP) nwere ike ime ka adhesion, mmiri na-eguzogide mmiri, ihu igwe na-eguzogide, wdg nke ihe mkpuchi ụlọ, karịsịa na mkpuchi na-achọ ọrụ dị elu dị ka mkpuchi mgbidi dị n'èzí na mkpuchi ala. Ịgbakwunye Redispersible Polymer Powder (RDP) nwere ike imeziwanye mmepụta ihe nkiri ya na adhesion ma gbasaa ndụ ọrụ nke mkpuchi.
Adhesives N'ụfọdụ ngwaahịa nrapado pụrụ iche, dị ka ihe ntanye tile, adhesives gypsum, wdg, ịgbakwunye ntụ ntụ Redispersible Polymer (RDP) nwere ike imeziwanye ike njikọta nke ukwuu ma melite ogo ọdabara na ịrụ ọrụ nke nrapado.
Ihe mgbochi mmiri Na ihe ndị na-adịghị mmiri, mgbakwunye nke polymers nwere ike ịmepụta oyi akwa ihe nkiri kwụsiri ike, na-egbochi ntinye mmiri nke ọma, ma welie arụmọrụ mmiri. Karịsịa na mpaghara ụfọdụ achọrọ dị elu (dị ka mkpuchi mmiri nke okpuru ulo, mkpuchi mkpuchi ụlọ, wdg), iji Redispersible Polymer Powder (RDP) nwere ike imeziwanye mmetụta mgbochi mmiri.
Usoro nke ime iheRDP, tumadi site na redispersibility ya na polymer film-akpụ e ji mara, na-enye ọtụtụ ọrụ na ciment dabeere ihe, dị ka ime ka bonding ike, imezi mgbanwe, na-eme ka mmiri na-eguzogide, na imezi ihe owuwu. Tụkwasị na nke ahụ, ọ na-egosikwa arụmọrụ dị mma n'ọhịa nke ngwa agha akọrọ akọrọ, ihe mkpuchi ụlọ, ihe nkpuchi, ihe mkpuchi mmiri, wdg. Ya mere, ntinye nke Redispersible Polymer Powder (RDP) na ihe owuwu nke oge a dị oke mkpa.
Oge nzipu: Feb-17-2025