Redispersible polymer powder (RDP) bụ ihe mgbakwunye polymer dị mkpa n'ime ihe owuwu nke oge a ma na-ejikarị ya na tile adhesives iji meziwanye ike njikọ ha, mgbanwe na ịdịte aka.
1. Nchịkọta nke Redispersible polymer ntụ ntụ
Polima ntụ ntụ na-agbanwe agbanwebụ ntụ ntụ na-enweghị ihe ọ bụla nke emulsion mere site na ịgbasa ihicha usoro. Enwere ike ịgbasa ya n'ime mgbasa ozi polymer yiri nke mbụ emulsion mgbe ịkpọtụrụ mmiri. Ụdị latex ntụ ntụ ndị a na-emekarị gụnyere ethylene-vinyl acetate copolymer (EVA), acrylates, ethylene-acrylate copolymer (VAE), wdg N'ihi nkwụsi ike ya dị mma, njem njem na mma ụlọ, a na-eji ya eme ihe n'ụdị ngwa ngwa agwakọta akọrọ, karịsịa na adhesives tile. Ọ na-arụ ọrụ dị mkpa.
2. Ọrụ nke Redispersible polymer ntụ ntụ na tile adhesives
Adhesives tile bụ ngwa agha agwakọtara akpọnwụ nke a na-eji na-arapara taịlị n'elu ala, nke enwere ike ịrụ site na ịgbakwunye mmiri. Ngwunye ciment omenala nwere ihe ọghọm nke nnukwu shrinkage na ike njikọ dị ala, nke na-eme ka o sie ike izute mkpa nke ụlọ nke oge a maka nkwụsi ike siri ike na itinye n'ọrụ dị iche iche nke isi ihe. Iwebata ntụ ntụ polymer redispersible emewo ka akụrụngwa anụ ahụ dịkwuo mma na ịrụ ọrụ nke nrapado tile, ọkachasị n'akụkụ ndị a:
Ike njikọta emelitere: irighiri ihe ndị dị na polymer na ntụ ntụ latex na-etolite usoro netwọkụ nwere ihe gelling inorganic (dị ka ciment), nke na-eme ka aru igwe na njikọ kemịkalụ n'etiti nrapado taịlị na taịlị na mkpụrụ, si otú ahụ na-emeziwanye ike njikọta.
Meziwanye mgbanwe na nkwụsi ike mgbawa: Ihe ndị na-agbanwe agbanwe nke polymer na-enye nrapado ikike nrụrụ dị elu, nwere ike ịmịnye obere nrụrụ nke mgbanwe okpomọkụ kpatara, nnyefe nrụgide, wdg, ma belata ihe ize ndụ nke mgbawa. Ọ dị mma karịsịa maka taịlị ndị buru ibu na ntọala ndị na-agbanwe agbanwe.
Meziwanye arụmọrụ ihe owuwu: Ntugharị polymer na-agbanwe agbanwe na-enye nrapado taịlị ogologo oge oghe, njigide mmiri dị mma na mmanu mmanu, nke dị mma maka ndị na-ewu ụlọ ka ha rụọ ọrụ ma na-emeziwanye arụmọrụ ihe owuwu.
Mma mmiri na-eguzogide na ifriizi-na-eguzogide: Ihe nkiri a na-emepụta site na polymer mgbe a gwọchara ya nwere oke mmiri na-eguzogide mmiri na ihu igwe, nke mere na nrapado tile ka nwere ike ịnọgide na-arụ ọrụ kwụsiri ike na gburugburu iru mmiri ma ọ bụ mgbanwe ihu igwe.
3. Ojiji na nlezianya anya
Na usoro mmepụta nke adhesives tile, Redispersible polymer powder na-ejikọta ya na ihe ndị na-ekpo ọkụ na-ekpo ọkụ dị ka ciment, ájá quartz, cellulose ether, wdg n'ụzọ kwesịrị ekwesị iji mee ngwakọta akọrọ. Tinye mmiri dị ọcha ma kpalie tupu ejiri ya na ebe a na-ewu ihe. Usoro ọgwụgwọ ya bụ n'ozuzu 2% ~ 10% nke ngụkọta ego nke nrapado akọrọ ntụ ntụ, a na-edozi ya dịka ọkwa arụmọrụ achọrọ (dị ka ọkwa C1, C2, S1, S2).
Ekwesịrị ịdebe isi ihe ndị a mgbe ị na-eji:
Zere nchekwa na ọnọdụ okpomọkụ dị elu na oke iru mmiri: ntụ ntụ latex dị mfe iji mee ka ọ dịkwuo njọ mgbe mmiri dị, ma ekwesịrị ka emechi ya ma chekwaa ya na ebe akọrọ.
Nnwale ndakọrịta na admixtures ndị ọzọ: Chemicals ndị ọzọ na usoro nwere ike imetụta arụmọrụ nke latex ntụ ntụ, na ndakọrịta kwesịrị ikwenye site na nyocha mbụ.
Mee ka ọ dị nro: kpalie nke ọma tupu e wuo ya ka ọ gbasaa n'ụzọ zuru ezu ntụ ntụ latex ma hụ na arụ ọrụ ya nke ọma.
4. Atụmanya mmepe
Dị ka ihe ụlọ na-aga n'ihu na-etolite n'ebe akwụkwọ ndụ akwụkwọ ndụ, ntụzịaka na gburugburu ebe obibi na arụ ọrụ, nkengwa nkePolima ntụ ntụ na-agbanwe agbanwena tile adhesivesna-agbasawanyewanye nke ọma, ọkachasị n'ụlọ nchekwa nchekwa na gburugburu ebe obibi na ụlọ arụrụ arụ. Tụkwasị na nke ahụ, nchọpụta na mmepe nke uzuzu latex na-aga n'ihu na-arụ ọrụ dị elu, dị ka ịmepụta obere VOC, mgbanwe dị elu, na ngwa ngwa ihicha ngwaahịa iji gboo mkpa nke ngwa ngwa dị iche iche.
Dị ka ihe dị mkpa na-arụ ọrụ dị elu gbanwetụrụ na tile adhesives, Redispersible polymer powder nwere uru dị ukwuu n'ịkwalite adhesion ngwaahịa, mgbanwe, na nkwụsị mmiri. Nhọrọ ezi uche dị na ya na iji sayensị eme ihe nke latex ntụ ntụ nwere ike imeziwanye ogo ihe owuwu na ịdịte aka nke paving tile. Site na mmepe nke sayensị ihe na ọganihu nke teknụzụ ihe owuwu, mpaghara ngwa ya na arụmọrụ ya ga-agbasawanye ma kwalite ya.
Oge nzipu: Mee-08-2025