Mhedziso yeRe-Dispersible polymer poda

Re-dispersible polymer poda (RDP) imhando yepolymer zvinhu zvinoshandiswa zvakanyanya muindasitiri yekuvaka. Iyo chena kana isina-chena poda inogadzirwa nespray-drying polymer emulsions. Iyo poda inoguma inogona kusanganiswa nyore nyore nemvura kuti iite kuturika kwakagadzikana kunogona kushandiswa sebhainda, kunamira, kana kupfekedza.

RDPs inowanzoshandiswa mumhando dzakasiyana-siyana dzekuvaka, kusanganisira mataira adhesives, grouts, self-leveling compounds, uye kunze kwekudzivirira uye kupedza masisitimu (EIFS). Anoshandiswawo mukugadzira dhaka dzakaoma-musanganiswa, zvinove zvakasanganiswa simende, jecha, uye zvimwe zvinhu zvinoshandiswa kugadzira kongiri, plaster, nezvimwe zvekuvakisa.

Izvo zvivakwa zveRDPs zvinogona kusiyana zvichienderana nerudzi rwepolymer inoshandiswa, pamwe nemaitiro ekugadzira. Nekudaro, kazhinji, maRDP ane anotevera maitiro:

1. Simba repamusoro rekubatanidza: RDPs inogona kuumba zvisungo zvakasimba nemhando dzakasiyana-siyana dze substrates, kusanganisira kongiri, huni, uye simbi.

2. Kudzivisa mvura: RDPs inopesana zvikuru nemvura, iyo inoita kuti ive yakakodzera kushandiswa munzvimbo dzakanyorova.

3. Flexibility: RDPs inogona kuumbwa kuti ive yakasununguka, iyo inovabvumira kutsungirira kushungurudzika uye kufamba pasina kuputika kana kuputsa.

4. Kushanda kwakanaka kwekushanda: RDPs inogona kusanganiswa nyore nyore nemvura kuti iite paste yakatsetseka, inoshanda kana kumiswa.

5. Kubata kwakanaka: RDPs inogona kusungirirwa zvakanaka kune zvakasiyana-siyana zve substrates, kusanganisira porous uye kwete-porous surfaces.

6. Kupikisa kwemakemikari akanaka: RDPs inopesana zvikuru nemishonga yakawanda, kusanganisira acids, mabhesi, uye solvents.

Kune akati wandei akasiyana marudzi eRDP anowanikwa pamusika, imwe neimwe iine yayo yakasarudzika zvivakwa uye maitiro. Mamwe emhando dzakajairika anosanganisira:

1. Ethylene-vinyl acetate (EVA) copolymers: Aya maRDP anoshanduka zvikuru uye ane kunamatira kwakanakisisa kune zvakasiyana-siyana zve substrates. Ivo vanowanzoshandiswa mumatairi adhesives, grouts, uye EIFS.

2. Vinyl acetate-ethylene (VAE) copolymers: Aya maRDPs anonyanya kudzivirira mvura uye ane kunamatira kwakanaka kune zvakasiyana-siyana zve substrates. Iyo inowanzoshandiswa mukunze kwekudzivirira uye kupedzisa masisitimu (EIFS), pamwe chete nematairi ekunamira uye grouts.

3. Styrene-butadiene (SB) copolymers: Aya maRDP anoshanduka zvikuru uye ane kunamatira kwakanakisisa kune zvakasiyana-siyana zve substrates. Ivo vanowanzoshandiswa mumatairi adhesives, grouts, uye EIFS.

4. Acrylics: Aya maRDPs anonyanya kudzivirira mvura uye ane kunamatira kwakanaka kune zvakasiyana-siyana zve substrates. Iyo inowanzoshandiswa mukunze kwekudzivirira uye kupedzisa masisitimu (EIFS), pamwe chete nematairi ekunamira uye grouts.

5. Polyvinyl doro (PVA): Aya maRDPs anonyanya kunyungudika nemvura uye ane kunamatira kwakanaka kune zvakasiyana-siyana zve substrates. Iyo inowanzoshandiswa mumadhaka akaoma-musanganiswa uye sebhainda mumapepa ekuputira.

Pamusoro pekushandiswa kwavo muindasitiri yekuvaka, maRDP anoshandiswawo mune akasiyana mamwe maapplication, anosanganisira:

1. Textile coatings: RDPs inogona kushandiswa sechifukidzo chemicheka kuti ivandudze kudzivirira kwemvura uye kusimba.

2. Paints uye machira: RDPs inogona kushandiswa sebhainda mumapende uye mapeji kuti ivandudze kunamatira kwavo uye kudzivirira mvura.

3. Adhesives: RDPs inogona kushandiswa sebhainda mune zvakanamatira kuvandudza simba ravo uye kudzivirira mvura.

4. Zvigadzirwa zvekuchengetedza munhu: RDPs inogona kushandiswa muzvigadzirwa zvekutarisira zvemunhu, zvakadai semvere dzemvere nemafuta eganda, kuvandudza mararamiro avo uye kugadzikana.

Pakazere, anoparadzirwazve polymer hupfu zvinhu zvakasiyana-siyana uye zvakakosha muindasitiri yekuvaka nekupfuura. Nezvimiro zvavo zvakasarudzika uye huwandu hwakawanda hwekushandisa, vane chokwadi chekuenderera mberi nekuita basa rakakosha mumaindasitiri mazhinji kwemakore anotevera.