Nkọwa nke redispersible emulsion ntụ ntụ

Redispersible Emulsion Powder (RDP), makwaara dị ka redispersible polymer ntụ ntụ, bụ free-eru, na-acha ọcha ntụ ntụ enwetara site ịgba ihicha emulsion nke vinyl acetate-etylene copolymer ma ọ bụ ndị ọzọ polymers. Ọ bụ ihe mgbakwunye dị iche iche nke a na-eji eme ihe na-ewu ụlọ iji meziwanye ihe ndị dị ka adhesion, mgbanwe, ịrụ ọrụ, na nkwụsị mmiri. Nke a bụ nkọwa nke ntụ ntụ emulsion redispersible:

Ihe mejupụtara:

• Polymer Base: Akụkụ bụ isi nke RDP bụ polymer sịntetik, nke na-abụkarị vinyl acetate-ethylene (VAE) copolymer. A pụkwara iji polymers ndị ọzọ dị ka vinyl acetate-vinyl versatate (VA/VeoVa) copolymers, ethylene-vinyl chloride (EVC) copolymers, na acrylic polymers dabere na ihe ndị a chọrọ.
• Colloid nchekwa: RDP nwere ike ịnwe kolloid nchekwa dị ka cellulose ethers (dịka ọmụmaatụ, hydroxypropyl methylcellulose), mmanya polyvinyl (PVA), ma ọ bụ starch iji kwalite nkwụsi ike na redispersibility.

Usoro mmepụta:

1. Emulsion Formation: The polymer na-agbasasịkwa na mmiri tinyere ndị ọzọ mgbakwunye dị ka nchebe colloid, plasticizers, na dispersing mmadụ na-etolite a kwụsiri ike emulsion.
2. Ịkpọ nkụ: A na-etinye emulsion ahụ ma fesa n'ime ụlọ ihicha ebe ikuku na-ekpo ọkụ na-ekpochapụ mmiri ahụ, na-ahapụ n'azụ ihe siri ike nke polymer. A na-anakọta ụmụ irighiri ihe ndị a mịrị amị na nkewa iji nweta nkesa nha nha nha chọrọ.
3. Ngwọta-Ọgwụgwọ: The Fikiere ahụ nwere ike na-enweta post-ọgwụgwọ Filiks dị ka elu mgbanwe, granulation, ma ọ bụ ngwakọta na ndị ọzọ mgbakwunye na-ebuli Njirimara dị ka redispersibility, flowability, na ndakọrịta na ndị ọzọ components na formulations.

Njirimara:

• Redispersibility: RDP na-egosipụta ọmarịcha redispersibility na mmiri, na-akpụ akpụ akpụ siri ike yiri nke mbụ emulsion n'elu rehydration. Ihe onwunwe a na-eme ka nkesa otu na ịrụ ọrụ na-agbanwe agbanwe na ngwa owuwu.
• Nhazi ihe nkiri: Uru RDP nwere ike jikọta ma mepụta ihe nkiri polymer na-aga n'ihu mgbe ihicha, na-enye adhesion, mgbanwe, na ịdịte aka na ihe owuwu dị ka ngwa agha, adhesives, na grouts.
• Njide mmiri: RDP na-eme ka njigide mmiri dị na sistemu cementitious, na-ebelata mmiri n'oge ịtọlite ​​​​na ịgwọ ọrịa na imeziwanye arụmọrụ, adhesion, na ike ikpeazụ.
• Mgbanwe na mgbawa mgbawa: Ihe nkiri polymer nke RDP mere na-enye mgbanwe na mgbawa mgbawa na ihe owuwu ụlọ, na-ebelata ihe ize ndụ nke mgbawa na delamination.
• Ndakọrịta: RDP dakọtara na ọtụtụ cementitious binders, fillers, aggregates, and additives eji na-ewu ụlọ, na-enye ohere maka ngwa ngwa na nhazi.

Ngwa:

• Tile Adhesives na Grouts: RDP na-eme ka adhesion, mgbanwe, na nkwụsị mmiri dị na tile adhesives na grouts, na-eme ka nrụnye na-adịgide adịgide na ogologo oge.
• Mkpuchi Mpụga na Sistemụ Nchacha (EIFS): RDP na-eme ka mgbanwe, nguzogide ihu igwe, na mgbawa mgbawa nke mkpuchi EIFS, na-enye nchebe na mma mma na mgbidi mpụta.
• Mgbagwoju anya nke onwe: RDP na-eme ka ịgbapụta, nhazi, na imecha elu na ogige na-edozi onwe ya, na-eme ka ala dị larịị na larịị.
• Ndozi Mortars na Renders: RDP na-eme ka adhesion, ịdịte aka, na mgbape mgbape na nrụzi ngwa agha na ihe nrụpụta, na-eweghachi ma na-ewusi ihe arụrụ arụ mebiri emebi.

Redispersible Emulsion Powder (RDP) na-arụ ọrụ dị mkpa n'ịkwalite arụmọrụ na ịdịte aka nke ihe owuwu, na-enye aka na ịdị mma na ogologo oge nke ọrụ ụlọ. Ntugharị ya, ndakọrịta, na ịdị irè ya na-eme ka ọ bụrụ mgbakwunye bara uru na ngwa ihe owuwu dị iche iche.