Redispersible polymer poda (RDPs) yakwezva kutarisisa kwakapararira mumunda wezvivakwa zvekuvaka nekuda kwekugona kwavo kusimudzira akasiyana zvivakwa zvemateki uye simende-based zvigadzirwa.Imwe yemabhenefiti makuru eRDP kugona kwayo kuwedzera kuramba sag, chinhu chakakosha mumashandisirwo ekuvaka.
Redispersible polymer poda (RDP) yave yekuwedzera yakawanda mumidziyo yekuvaka, ichipa huwandu hwakawanda hwemabhenefiti anosanganisira kunamira kwekunamira, kushanduka, kuramba kwemvura uye sag kuramba.Sag resistance (sag resistance) zvinoreva kugona kwechinhu kuchengetedza chimiro chayo uye kudzivirira kuyerera kana deformation kana yaiswa pasi kana pamusoro.Mukuvaka zvikumbiro senge mataira anonamira, plasters uye stuccoes, sag kuramba kwakakosha kuve nechokwadi chekuisa kwakakodzera uye kushanda kwenguva refu.
Zvivakwa zveRedispersible Polymer Powder (RDP)
RDP inowanzogadzirwa kuburikidza nekupfapfaidza kuomesa maitiro umo polymer dispersion inoshandurwa kuita yemahara-inoyerera poda.Hunhu hweRDP, hunosanganisira particle size, tembiricha yegirazi, rudzi rwepolymer, uye kuumbwa kwemakemikari, inoita basa rakakosha mukuona kuita kwayo mukuvaka maapplication.Iyo particle saizi yekugovera yeRDP inokanganisa kupararira kwayo, firimu-kugadzira uye michina zvimiro, izvo zvinozokanganisa sag kuramba.
1.RDP's mechanism yekuvandudza anti-sag properties
Pane nzira dzakati wandei dzinoita kuti RDP iwedzere kuramba kusagika:
a.Particle Kuzadza: Iyo yakanaka zvimedu zveRDP zvinogona kuzadza voids uye kuwedzera kuzadza density yedhaka kana anonamira, nekudaro ichiwedzera kuramba kwayo kusagi.
b.Magadzirirwo emufirimu: RDP inoumba firimu rinoenderera kana rakanyoroveswa, kusimbisa dhaka matrix uye kupa kubatana, nekudaro ichideredza tsika yekusagika.
C. Flexibility: The elastic properties yeRDP inobatsira kushanduka kwedhaka, zvichiita kuti ikwanise kumira kushushikana uye kushanduka pasina kuderera.
d.Kuchengetwa kwemvura: RDP inogona kuvandudza simba rekuchengetedza mvura yedhaka, kuve nechokwadi chekushanda kwenguva refu uye kuderedza njodzi yekudonha panguva yekuvaka.
2. Zvinhu zvinokanganisa sag resistance
Pane zvinhu zvakawanda zvinokanganisa kusagadzika kwesimende zvinhu, zvinosanganisira:
a.Maumbirwo: Rudzi uye huwandu hweRDP, pamwe nezvimwe zvinowedzera senge thickeners uye dispersants, zvinogona kukanganisa zvakanyanya sag kuramba.
b.Consistency: Kuenderana kwedhaka kana kunamatira kunotemerwa nezvinhu zvakaita sereshiyo yemvura kunamira uye nzira yekusanganisa, uye inoita basa rakakosha mukuramba sag.
C. Substrate Properties: Zvinhu zve substrate, zvakadai seporosity uye roughness, zvinokanganisa kunamatira uye sag resistance yezvinyorwa zvinoshandiswa.
d.Mamiriro ekunze: Tembiricha, humidity, uye kuyerera kwemhepo zvinogona kukanganisa kuomesa uye kurapa maitiro, nekudaro zvichikanganisa sag kuramba.
3. Kuongororwa kwekusaga kusagadzikana
Nzira dzakasiyana-siyana dzinogona kushandiswa kuongorora sag kuramba kwezvinhu zvekuvaka, kusanganisira:
a.Kuyerera bvunzo: Kuyerera bvunzo, senge slump bvunzo uye kuyerera kwebhenji bvunzo, inowanzoshandiswa kuongorora mafambiro ekuyerera uye kuenderana kwedhaka uye zvinonamira.
b.Sag bvunzo: Iyo sag bvunzo inosanganisira kuisa sampuli yakatwasuka kana pamusoro uye kuyera dhigirii resag nekufamba kwenguva.Matekiniki akadai sekuyedzwa kwekoni uye blade kuyedzwa anoshandiswa kuyera sag kuramba.
C. Rheological zviyero: Rheological parameters, kusanganisira viscosity, goho kushushikana uye thixotropy, inopa ruzivo rwekuyerera uye deformation maitiro ekuvaka zvinhu.
d.Kuita kunoshanda: Pakupedzisira, kuramba kwechinhu kusag kunoongororwa zvichienderana nekuita kwayo mumashandisirwo epasirese, senge kuisirwa mataira uye facade kupa.
4. Kushandiswa kweRDP mukusimudzira sag resistance
RDP inoshandiswa zvakanyanya mukuvaka zvinhu kuwedzera sag kuramba:
a.Tile Adhesives: RDP inovandudza kunamatira uye sag kuramba kwematirai anonamira, kuve nechokwadi chekubatanidza kwakakodzera uye kuderedza kutsvedza kwetairi panguva yekuisa.
b.Kupa uye Stucco: Mukupurasita kwekunze uye stucco, RDP inowedzera sag kuramba uye inobvumira kutsetseka, kunyangwe kushanda panzvimbo yakatwasuka pasina kudonha kana deformation.
C. Self-leveling compounds: RDP inogona kuiswa mumakomisheni ega-leveling kuti ivandudze kuyerera uye kusagadzikana, zvichiita kuti pave nepamusoro uye pasi pasi.
d.Waterproof membrane: RDP inokwidziridza sag kuramba kweiyo isina mvura membrane, kuve nechokwadi kunyangwe kufukidzwa uye nekupa yakavimbika kudzivirira mvura.
5. Zvidzidzo uye mienzaniso
Zvidzidzo zvinoverengeka uye mienzaniso inoratidza kushanda kweRDP mukuvandudza sag kuramba:
a.Nyaya yeChidzidzo 1: Kushandiswa kweRDP mukunamira kwematairi kumapurojekiti makuru ekutengesa, achiratidza kukwidziridzwa kwesag kuramba uye kusimba kwenguva refu.
b.Nyaya yeChidzidzo 2: Ongororo yeRDP yakagadziridzwa madhindindi mumafacade anoratidza kukwirira kusag kuramba uye kuramba mamiriro ekunze.
C. Muenzaniso 1: Kuenzanisa kusag resistance kwedhaka rine uye pasina RDP rinowedzera, richiratidza kuvandudzika kukuru kwakaitwa neRDP.
d.Muenzaniso 2: Muedzo wemumunda weRDP yakagadziridzwa inodzika nhanho, ichiratidza kureruka kwekushandisa uye yakanakisa sag kuramba mumamiriro ezvinhu epasirese.
Redispersible polymer poda (RDP) inoita basa rakakosha mukusimudzira sag kuramba kwezvivakwa zvekuvaka, ichipa musanganiswa wekusimbisa mechini, kugadzira firimu uye kuchengetedza mvura.Nekunzwisisa maitiro uye zvinhu zvinopesvedzera sag kuramba uye kushandisa nzira dzakakodzera dzekuongorora, mainjiniya nemakondirakiti vanogona kushandisa nemazvo RDP kuwana zvigadziriso zvekuvaka zvinesimba uye zvepamusoro.Kuburikidza nekuenderera mberi nekutsvagisa uye hunyanzvi, RDP inotarisirwa kuenderera mberi ichive chinhu chekuwedzera mukugadzirisa matambudziko ane chekuita nekusagadzikana uye kusimudzira munda wezvivakwa zvekuvaka.
Nguva yekutumira: Feb-28-2024