Upfu hwepolymer hunonyungudika (RDP)imhando yepolymer powder additive yakagadzirwa kubva kupolymer emulsion kuburikidza nekupfapfaidza. Hunhu hwayo hukuru kugona kwayo kunyurazve kuita polymer emulsion yakagadzikana kana yasangana nemvura, nokudaro ichiita basa rekugadzirisa rakafanana neremvura emulsion mumasisitimu akasiyana-siyana e dry-mix mortar. Kuunzwa kweRDP kwakavandudza zvakanyanya kushanda, kunamira, uye kugara kwenguva refu kwezvinhu zvekuvaka, zvichiita kuti ive chinhu chakakosha mumhando dzemazuva ano dze dry-mix mortar uye tile adhesive formulations.
1.Panyaya yekushanda kwayo, RDP inoratidza kugona kusanganiswa zvakanaka uye kugadzira firimu. Kana ikasanganiswa nemvura, upfu hweRDP hunokurumidza kupararira kuti hugadzire zvidimbu zvakafanana zve emulsion, uye panguva yekuomesa, inoumba firimu repolymer rakakora rinoramba riripo. Firimu iri repolymer rinobatanidza zvinobudirira inorganic aggregate pamusoro pe substrate, zvichivandudza simba re bond rechinhu chacho uye kuchinjika kwaro. Firimu iri rinewo mwero wakati we elasticity, richibvisa kusiyana kwekushushikana pakati pe base ne top layers, zvichidzivirira kutsemuka nekudonha.
2.RDP inogona kuvandudza kushanda kwedhaka. Kuwedzera huwandu hwakakodzera hweRDP kunovandudza zvakanyanya kuchengetedza mvura, kuyerera, uye kunyorova kwedhaka, zvichiita kuti rishandiswe zviri nyore uye zvakaenzana ukuwo richideredza kubuda kweropa nekupatsanurwa. Uyezve, RDP inowedzera hunhu hwedhaka hunodzivirira kudonha uye kudzivirira hupfu, zvichiita kuti kushandiswa kwedhaka rakakora kuve kwakasimba. Kune zvinonamira zvemataira, RDP inosimbisa chisungo pakati petaira nesubstrate, zvichiita kuti kunamira kurambe kwakasimba kwenguva refu.
3.Panyaya yekugara kwenguva refu, RDP inodzivirira kupwanyika zvakanaka, inodzivisa kuomeswa nechando, uye inodzivisa kudonha kwemvura. Firimu repolymer rinoshanda sechidziviriro kuhunyoro nemagasi, richideredza kupinda kwehunyoro hwekunze uye nokudaro richideredza kukwegura kwedhaka. Kunyangwe munzvimbo dzinopisa uye dzinotonhora kana munzvimbo dzine hunyoro, zvinhu zvakagadziriswa neRDP zvinoramba zvine simba rakawanda uye zvinonamatira, izvo zvinonyanya kukosha kune masisitimu ekudzivirira madziro ekunze uye kugadzirisa dhaka.
4.Panyaya yemakemikari, RDP inowanzo kuve copolymer yemamonomers akasiyana, akadai sevinyl acetate-ethylene (VAE), acrylates, uye styrene-butadiene. Mhando dzakasiyana dzemapolymer dzinosarudza kuenzana pakati pekuchinjika, kuramba mvura, uye kunamira. MaRDP akavakirwa paVAE ndiwo anonyanya kushandiswa nekuda kwekushanda kwawo kwakanaka kwazvo. MaRDP akavakirwa paacrylate anozivikanwa nekugona kwawo kuchinjika uye kuchinjika kwemamiriro ekunze, zvichiita kuti akwanise kushandiswa nezvinhu zvepamusoro zvekunze zvemadziro. MaRDP akavakirwa pastyrene-butadiene anowanzo shandiswa mumasisitimu anoda kuchinjika kwakanyanya uye kuramba kukwesha.
5.Mukushandiswa kwazvinoitwa, maRDP anoshandiswa zvakanyanya mukugadzira zvinhu zvakaita sematiles anonamira, masisitimu ekuputira ekunze (EIFS), mamortar anodzikamisa muviri, mamortar anogadzirisa, mamortar anodzikamisa muviri, mamortar anodzikamisa mvura, uye ma interface agents. Semuenzaniso, muma tile adhesives, maRDP anovandudza zvakanyanya simba remabond akaoma uye akanyorova uye anodzivirira kutsvedza; mumamortar anodzikamisa muviri, anowedzera kuchinjika kwesystem uye kuramba kutsemuka; mumamortar anodzikamisa muviri, maRDP anovandudza kuyerera kwemvura uye anoderedza hupfu; uye mumamortar anodzikamisa mvura, anowedzera kudzika kwemvura nekureba, achisimbisa hunhu hwawo hwekudzivirira.
6.Kuburikidza nehunyanzvi hwayo hwakanaka hwekugadzira firimu repolymer uye kushanda pamwe chete ne substrates dzisina organic,RDPZvinowedzera zvakanyanya mashandiro emasisitimu emota yakasanganiswa nedry-mix. Hazvingogadziri ruzivo rwekuvaka chete asiwo zvinopa kugara kwenguva refu uye kugona kuchinjika nezvinhu, zvichiita kuti ive chinhu chakakosha chekuwana kushanda kwepamusoro uye kugadzikana muzvishandiso zvemazuva ano zvekuvaka. Nekuvandudzwa kuri kuramba kuchiitwa kwezvinhu zvekuvaka zvakasvibira uye masisitimu emota yakasanganiswa nedry-mix anoshanda zvakanyanya, hunyanzvi hweRDP tekinoroji uye huwandu hwekushandisa hucharamba huchikura, huchiva gwara guru rezvishandiso zvekuvaka zvinoshanda mune ramangwana.
Nguva yekutumira: Gumiguru-17-2025