polymer ntụ ntụ na-ekesa ọzọ

Re-dispersible polymer ntụ ntụ (RDP) bụ a akọrọ ntụ ntụ ụdị a sịntetik polima nke nwere ike mfe weere na mmiri na-etolite a polima dispersion. A na-ejikarị RDP eme ihe dị ka ihe mgbakwunye n'ụdị ihe owuwu dị iche iche, gụnyere ngwa ngwa agwakọta akọrọ, tile adhesives, na mpụta mkpuchi na usoro mmecha (EIFS), n'ihi njirimara ya magburu onwe ya, dị ka ịrụ ọrụ nke ọma, nrapado, na mgbanwe.

A na-eme RDP site na polymer synthetic dị iche iche, dị ka vinyl acetate-ethylene (VAE), vinyl acetate-versatile monomer (VeoVa), na acrylics. A na-eme ka polymers ndị a dị n'ime mmiri mmiri na-emepụta ihe na-emepụta latex, nke a na-akpọnwụ wee gbanye ya n'ime ntụ ntụ dị mma. Enwere ike ịgbasa ntụ ntụ n'ime mmiri ka ọ bụrụ mgbasasị polymer kwụsiri ike.

Njirimara nke RDP na-adabere n'ụdị polymer eji, ogo polymerization, nkesa nha nha, na ọnụnọ nke ihe mgbakwunye ndị ọzọ. N'ozuzu, RDP nwere ezigbo nguzogide mmiri, mgbanwe, adhesion, na ndakọrịta na ihe owuwu ndị ọzọ. Ụdị ntụ ntụ nke RDP na-enyekwa ohere maka nchekwa, njem, na njikwa dị mfe.

N'ime ngwa agha agwakọtara akọrọ, a na-eji RDP emeziwanye arụmọrụ, nrapado, na mgbanwe nke ngwa agha. RDP nwere ike ịkwalite njide mmiri nke ngwa agha ahụ, nke na-enye ohere maka ịrụ ọrụ ka mma na oge na-emeghe. Nkwado dị mma nke RDP na-enye nwekwara ike ịbawanye ike njikọ dị n'etiti ngwa ngwa na mkpụrụ, na-eme ka ọ dịkwuo ogologo ma na-adịte aka.

Na tile adhesives, a na-eji RDP emeziwanye ike nkekọ na mgbanwe nke nrapado. Ike njikọ dị mma nke RDP na-enye nwere ike ịbawanye nguzogide ike ịkwa akwa na bee, na-ebute njikọ siri ike na nke na-adịgide adịgide n'etiti taịlị na mkpụrụ. Mmụba mgbanwe nke RDP na-enye nwekwara ike inye aka itinye uche na nrụgide nke mgbanwe okpomọkụ na iru mmiri na-akpata, na-ebelata ihe ize ndụ nke mgbawa ma ọ bụ delamination.

Na EIFS, a na-eji RDP mee ka adhesion, mgbanwe na nguzogide ihu igwe nke usoro ahụ dịkwuo mma. Nkwado dị mma nke RDP na-enye nwere ike ime ka ike dị n'etiti bọọdụ mkpuchi na mkpụrụ osisi, ebe mmụba na-agbanwe agbanwe nwere ike inye aka na-etinye nrụgide site na mgbasawanye ọkụ na nkwekọrịta. Mmiri na-eguzogide mmiri nke RDP na-enye nwekwara ike inye aka igbochi ntinye mmiri ma belata ihe ize ndụ nke mmebi nke cycles-thaw na-akpata.

Ojiji nke RDP na ihe owuwu nwere ọtụtụ uru. Nke mbụ, RDP nwere ike imeziwanye arụmọrụ nke ihe ndị ahụ, na-eme ka ọ bụrụ ihe na-adịgide adịgide na ogologo oge. Nke abụọ, RDP nwere ike imeziwanye ọrụ na njikwa ihe, na-ebelata ihe ize ndụ nke njehie na imeziwanye mmepụta ihe. N'ikpeazụ, RDP nwekwara ike imeziwanye arụmọrụ gburugburu ebe obibi nke ihe ndị ahụ, dị ka ibelata ọnụ ọgụgụ nke ogige organic na-agbanwe agbanwe (VOC) na-apụta n'oge ngwa.

Na mmechi, re-dispersible polymer powder (RDP) bụ vasatail na ọtụtụ ebe na-agbakwunye na-ewu ihe. RDP nwere ike imeziwanye arụmọrụ, nrapanye, na mgbanwe nke ngwa ngwa agwakọta akọrọ, tile adhesives, na EIFS, na-eme ka ọ dịkwuo ogologo ma na-adịte aka. Iji RDP eme ihe n'ihe owuwu nwere ọtụtụ uru, gụnyere arụmọrụ ka mma, ịrụ ọrụ, na arụmọrụ gburugburu ebe obibi.