Redispersible Polymer Powder (RDP)chinhu chakakosha chekuwedzera chinoshandiswa mumhando dzakasiyana siyana dzakaoma dhaka. Ipolymer-based powder iyo, kana yakasanganiswa nemvura, inogovera zvakare kuita firimu. Iyi firimu inopa akati wandei akakosha zvivakwa kune dhaka, senge yakagadziridzwa adhesion, kuchinjika, kudzivirira mvura, uye kutsemuka kuramba. Sezvo zvinodiwa zvekuvaka zvinoshanduka, maRDP akawana kushandiswa kwakapararira muzvigadzirwa zvedhaka rakaoma, uko mabhenefiti avo anoita basa rakakosha mukusimudzira maitiro ekuita.
1.Redispersible Polymer Powder (RDP) Overview
Redispersible Polymer Powder(RDP)s inogadzirwa nekuomesa emulsion yeanogadzira mapolymers, anowanzo styrene-butadiene (SB), vinyl acetate-ethylene (VAE), kana acrylics. Aya mapolymer anogayiwa zvakatsetseka uye anokwanisa kuparadzira zvakare kana asanganiswa nemvura, achigadzira firimu rinovandudza ma mechanic properties yedhaka.
Hunhu hwakakosha hweRDPs:
Kuwedzeredza kwekunamatira: Inovandudza kubatana kune substrates.
Kuchinja-chinja: Inopa kufamba kwekugara uye inoderedza kuputika.
Kuramba kwemvura: Inowedzera kuramba kupinda kwemvura.
Kuvandudzwa kwekushanda: Inowedzera nyore kushandisa.
Enhanced durability: Inobatsira pakushanda kwenguva refu mumamiriro akanyanya.
2.Zvishandiso muSpecial Dry Mortar Zvigadzirwa
a.Tile Adhesives
Mataira anonamira ndeimwe yeanonyanya kushandiswa eRedispersible Polymer Powder (RDP). Aya anonamira akagadzirirwa kubatanidza mataira kunzvimbo dzakasiyana siyana, kusanganisira madziro uye pasi. Iko kuisirwa kweRDP mumatairi adhesives inovandudza zvakanyanya zvinotevera zvivakwa:
Bond simba: Chisungo chekunamatira pakati petairi uye substrate inovandudzwa zvakanyanya, kudzivirira tile detachment nekufamba kwenguva.
Kuchinja-chinja: RDP inobatsira kuvandudza shanduko yekunamatira, ichibvumira kuti irambe kuputika uye delamination nekuda kwekufamba kweiyo substrate yepasi kana mataira pachawo.
Nguva yekuvhura: Nguva yekushanda isati yanamatira inotanga kuisa yakawedzerwa, ichipa nguva yakawanda yekugadzirisa panguva yekuisa.
| Property | Pasina RDP | NeRDP |
| Bond simba | Pakati nepakati | High |
| Kuchinja-chinja | Low | High |
| Nguva yekuvhura | Pfupi | Extended |
| Kuramba kwemvura | Murombo | Kugona |
b.Plasters
Redispersible Polymer Powder (RDP)s inoshandiswa zvakanyanya mukati nekunze plasters kuvandudza kunamatira, kuramba mvura, uye kuchinjika. Panyaya yemashanduro ekunze kana ma façade masisitimu, maRDP anopa mamwe mabhenefiti akadai sekuwedzera kuramba kwemamiriro ekunze uye kuparara kweUV.
Kunamatira kune substrates: RDP inova nechokwadi chekuti plaster inonamira zvirinani kune kongiri, zvidhinha, kana zvimwe zvinhu zvekuvaka, kunyangwe painenge yaiswa mumvura nehunyoro.
Kuramba kwemvura: Kunyanya mumapurasita ekunze, maRDP anobatsira pakudzivirira kwemvura, kudzivirira kupinda kwehunyoro uye kukuvara kunokonzerwa nechando-thaw cycles.
Crack resistance: Iko kukwidziridzwa kuchinjika kwepurasita kunoderedza mukana wekutsemuka kuumbwa nekuda kwekupisa kana mechanical stress.
| Property | Pasina RDP | NeRDP |
| Kunamatira kune substrate | Pakati nepakati | Excellent |
| Kuramba kwemvura | Low | High |
| Kuchinja-chinja | Limited | Kuwedzera |
| Crack resistance | Murombo | Kugona |
c.Gadzirisa Madhaka
Madhiri ekugadzirisa anoshandiswa kugadzirisa nzvimbo dzakakanganisika, dzakadai sekrete yakatsemuka kana yakaputika. Mumashandisirwo aya, RDP inoita basa rakakosha mukuvandudza zvinotevera:
Kubatana kune yekare nzvimbo: Redispersible Polymer Powder (RDP) inonatsiridza kunamatira kune iripo substrates, kuve nechokwadi chekuti zvinhu zvekugadzirisa zvinonamatira zvakachengeteka.
Kushanda: RDP inoita kuti dhaka rive nyore kuisa uye chiyero, kuvandudza kurerukirwa kwese kwekushandisa.
Durability: Nekusimudzira kemikari uye michina yedhaka, RDP inova nechokwadi chekugadzirisa kwenguva refu kunoramba kutsemuka, shrinkage, uye kukuvara kwemvura.
| Property | Pasina RDP | NeRDP |
| Kubatanidza kune substrate | Pakati nepakati | Excellent |
| Kushanda | Zvakaoma | Smooth uye nyore kushandisa |
| Durability | Low | High |
| Kupokana nekuderera | Pakati nepakati | Low |
d.External Thermal Insulation Systems (ETICS)
Mukunze kwemafuta ekudzivirira anosanganisa masisitimu (ETICS), Redispersible Polymer Powder (RDP)s anoshandiswa mune inonamira layer kune bond insulation zvinhu kumadziro ekunze ezvivakwa. RDPs inobatsira pakuita kwese system ne:
Kuvandudzwa kwekunamatira: Inosimbisa kubatana kwakasimba pakati peiyo insulation uye substrate.
Kupokana nemamiriro ekunze: Iyo yakakwidziridzwa kuchinjika uye kudzivirira mvura kunobatsira sisitimu kuita zvirinani pasi pemamiriro ekunze akasiyana.
Impact resistance: Inoderedza njodzi yekukuvadzwa kubva mukubata kwemuviri, senge kubva kune chimvuramabwe kana mechini kubata panguva yekuisa.
| Property | Pasina RDP | NeRDP |
| Adhesion | Pakati nepakati | High |
| Kuchinja-chinja | Limited | High |
| Kuramba kwemvura | Low | High |
| Impact resistance | Low | Kugona |
3.Benefits ofRedispersible Polymer Powder (RDP)muDry Mortar Products
Redispersible Polymer Powder (RDP)s inosimudzira zvakanyanya mashandiro ezvigadzirwa zvedhaka rakaoma, zvichipa zvinotevera zvakanakira:
a.Enhanced Adhesion
RDP inovandudza simba rekubatanidza pakati pedhaka uye akasiyana ma substrates, ayo anonyanya kukosha kune maapplication akaita sematairi anonamira uye kugadzirisa madhaka, uko kunamatira kwakasimba kunodiwa kudzivirira delamination kana kutadza nekufamba kwenguva.
b.Crack Resistance
Iko kuchinjika kunopihwa neRDPs kunobvumira masisitimu ematope kuti aenderane nekufamba kwekupisa, kuderedza njodzi yekutsemuka. Ichi chivakwa chakakosha kune ekunze maapplication, senge plasters uye ETICS, uko mafambiro ekuvaka kana akanyanya mamiriro ekunze anogona kukonzera kutsemuka.
c.Kuramba Mvura
Kune ese ari maviri emukati uye ekunze maapplication, maRDPs anobatsira kune zvirinani kudzivirira mvura, zvichibatsira kudzivirira hunyoro kupinda. Izvi zvinonyanya kubatsira munzvimbo dzakanyorova, kuve nechokwadi chekugara kwenguva refu uye kusimba kwezvinhu zvekuvaka.
d.Kuvandudzwa Kwekushanda
Madhiri ane RDP ari nyore kuisa, kuparadzira, uye kugadzirisa, kuvandudza iyo yakazara mushandisi ruzivo. Ichi chikomborero chakakosha mumatairi ekunamatira uye kugadzirisa madhaka, uko nyore kushandisa kunogona kukurumidza kuita basa rekuvaka.
e.Durability
Madhiri ane Redispersible Polymer Powder (RDP) anonyanya kushingirira kupfeka uye kubvaruka, achivimbisa kushanda kwenguva refu pasi pekunetseka kwakasiyana kwezvakatipoteredza.
Redispersible Polymer Powder (RDP)s zvinhu zvakakosha mukugadzirwa kwemadhaka akaomeswa, achivandudza zvimiro zvavo zvemuviri senge kunamatira, kuchinjika, kushanda, uye kusimba. Ingave ichishandiswa mumatairi anonamira, plasters, kugadzirisa madhaka, kana ekunze masisitimu ekudzivirira, maRDP anovandudza zvakanyanya kushanda uye hupenyu hurefu hwechigadzirwa. Sezvo mitemo yekuvaka ichiramba ichida zvimwe zvinhu zvine hunyanzvi, kushandiswa kweRDP mumadhaka akaoma kucharamba kuchiita basa rakakosha mukuzadzisa izvi zvinodiwa.
Nguva yekutumira: Feb-15-2025