Redispersible polymer poda, inozivikanwawo seRdp, chinhu chakakosha mukugadzira dhaka rekudzivirira mvura. Nekuda kweakawanda mabhenefiti uye akasiyana zvivakwa, kushandiswa kwayo kuri kuwedzera kukurumbira muindasitiri yekuvaka.
Madhaka ekuvharisa mvura anowanzoshandiswa muzvirongwa zvekuvaka zvinosanganisira zvivakwa zvinogarosangana nemvura kana zvimwe zvinwiwa. Zvimiro zvakaita semadziva, zvitubu, madhamu nemadziro ekuchengetedza zvinoda dhaka rekudzivirira mvura kuti rive nechokwadi chekusimba, simba uye hupenyu hurefu. Kuwedzeredzwa kweadhispersible polymer poda kunopa akati wandei mabhenefiti pamusoro pechinyakare dhaka musanganiswa.
Imwe yemabhenefiti makuru eRdp mune yekudzivirira mvura dhaka kugona kwayo kupa kuchinjika uye elasticity. Kana Rdp zvimedu zvasanganiswa mudhaka, zvinogadzira matatu-dimensional network yemaketani akabatana. Iyi network inoita kuti dhaka rishanduke uye rinobatsira kudzivirira kuputika uye kubuda kwemvura. Iko kuchinjika kwedhaka kunobvumirawo kuti igone kumira zvirinani kushanduka kana kufamba kwechimiro pasina kuputika.
Imwe mukana wakakosha wezve dispersible polymer poda ndeye yakawedzerwa yekusunga zvivakwa. Kuwedzera Rdp zvimedu kune dhaka kugadzirwa kunovandudza chisungo chayo kusimba kune iyo yakapendwa. Iwo mapolymer particles anogadzira zvisungo zvakasimba zvinobatsira kudzivirira kunyura kwemvura uye kuderedza njodzi yekukuvadzwa kubva kuchando-thaw cycles - izvo zvinowanzoitika muzvivakwa zvakafumurwa mvura.
Pamusoro pekupa kuchinjika, elasticity uye yakagadziridzwa adhesion, Rdp zvakare inopokana zvakanyanya nekuita kwemakemikari uye kuderedzwa kwemamiriro ekunze. Izvo zvinhu hazvipindirwe nemwaranzi yeUV, tembiricha yakanyanya kana acidic komisheni, zvichiita kuti ive yakanakira kushandiswa mumamiriro ekunze akaoma. Iyo zvakare inodzivirira mvura zvakanyanya, ichidzivirira kukura kwebhakitiriya, mold, uye fungi.
Kushandiswa kweRdp mumatope ekudzivirira mvura kunobatsira kuwedzera kusimba uye hupenyu hurefu hwechimiro. Iyo yakawedzera elasticity uye kuchinjika kweiyo dhaka formula inovandudza kugona kwayo kutsungirira kushushikana, kuderedza njodzi yekutsemuka kana kuparara nekufamba kwenguva. Yayo yakanakisa yekubatanidza zvivakwa inovimbisa kuti dhaka rinoramba rakasungirirwa pamusoro, richipa kwenguva refu yekudzivirira kukuvadzwa kwemvura.
Kushandiswa kwepolymer powders inodhindwa mumatope ekudzivirira mvura yave iri mhinduro inowedzera mukurumbira muindasitiri yekuvaka. Iyo inopa akati wandei mabhenefiti akakosha, anosanganisira kuchinjika, elasticity, yakagadziridzwa adhesion, uye kuramba kuita kwemakemikari uye kuderedzwa kwemamiriro ekunze. Aya mabhenefiti anozopedzisira awedzera kusimba uye hupenyu hurefu hwechimiro, zvichiita kuti ive yakanyanya kutsvakwa zvinhu zvekudzivirira mvura. Pakazere, kushandiswa kweRdp mumadhaka ekudzivirira mvura inhanho yakanaka yekuvaka yakachengeteka, yakatsiga uye inotsiga zvivakwa.
Nguva yekutumira: Oct-16-2023