Re-dispersible polymer poda

Re-dispersible polymer poda (RDP) imhando yehupfu yakaoma yepolymer yakagadzirwa inogona kusanganiswa nyore nemvura kuti iite kupararira kwepolymer. RDP inowanzoshandiswa sechinhu chinowedzera muzvinhu zvakasiyana-siyana zvekuvaka, zvinosanganisira dhaka rakaoma-musanganiswa, mataira anonamira, uye ekunze insulation uye kupedza masisitimu (EIFS), nekuda kwehunhu hwayo hwakanaka, hwakadai sekuvandudzwa kwekushanda, kunamatira, uye kuchinjika.

RDP inogadzirwa kubva akasiyana-siyana ekugadzira mapolymers, akadai sevinyl acetate-ethylene (VAE), vinyl acetate-versatile monomer (VeoVa), uye acrylics. Aya mapolymer akaiswa mumhepo ine mvura kuita latex, yobva yaomeswa nekukuyiwa kuita hupfu hwakatsetseka. Hupfu hunogona kuparadzirwa nyore nyore mumvura kuti iite yakagadzika polymer dispersion.

Zvimiro zveRDP zvinoenderana nerudzi rwepolymer inoshandiswa, dhigirii repolymerization, saizi yekugovera saizi, uye kuvapo kwezvimwe zvinowedzera. Kazhinji, RDP ine mvura yakanaka kuramba, kuchinjika, kunamatira, uye kuenderana nezvimwe zvekuvaka. Iyo poda fomu yeRDP zvakare inobvumira kuchengetedza nyore, kufambisa, uye kubata.

Mumatope akaoma-akasanganiswa, RDP inoshandiswa kuvandudza kushanda, kunamatira, uye kushanduka kwevhu. RDP inogona kusimudzira kuchengetwa kwemvura kwedhaka, iyo inobvumira kushanda kuri nani uye kuwedzera kuvhurika nguva. Iyo yakagadziridzwa yakanamatira inopiwa neRDP inogonawo kuwedzera chisungo chesimba pakati pedhaka uye substrate, zvichiita kuti igare yakasimba uye inogara kwenguva refu kupera.

Mune mataira anonamira, RDP inoshandiswa kuvandudza chisungo chesimba uye kuchinjika kweanonamatira. Iyo yakagadziridzwa chisungo chesimba chinopihwa neRDP chinogona kuwedzera kuramba kugera uye ganda mauto, zvichikonzera kusimba uye kwakasimba chisungo pakati pe tile ne substrate. Iko kuwedzera kuchinjika kunopihwa neRDP kunogona zvakare kubatsira kubata kushushikana kunokonzerwa nekushanduka kwekushisa uye hunyoro, kuderedza njodzi yekutsemuka kana delamination.

MuEIFS, RDP inoshandiswa kuvandudza kunamatira, kushanduka, uye kuramba kwemamiriro ekunze kwehurongwa. Iyo yakagadziridzwa yakanamatira yakapihwa neRDP inogona kuwedzera chisungo chesimba pakati peiyo insulation board uye substrate, nepo kuwedzera kuchinjika kunogona kubatsira kubata kushushikana kunokonzerwa nekuwedzera kwekupisa uye kuputika. Kudzivirirwa kwemvura kunopihwa neRDP kunogonawo kubatsira kudzivirira kupinda kwemvura uye kuderedza njodzi yekukuvadzwa kunokonzerwa nefreeze-thaw cycles.

Iko kushandiswa kweRDP mune zvekuvaka kune akati wandei mabhenefiti. Chekutanga, RDP inogona kuvandudza mashandiro emidziyo, zvichikonzera kupera kwakasimba uye kwenguva refu. Chechipiri, RDP inogona kuvandudza kushanda uye kubata kwezvinhu, kuderedza njodzi yekukanganisa nekuvandudza chibereko. Chekupedzisira, RDP inogona zvakare kuvandudza mashandiro ezvemamiriro ekunze emidziyo, sekudzikisa huwandu hwekusagadzikana organic komisheni (VOCs) inoburitswa panguva yekushandisa.

Mukupedzisa, re-dispersible polymer poda (RDP) inogoneka uye inoshandiswa zvakanyanya mukuwedzera mune zvekuvaka. RDP inogona kuvandudza kushanda, kunamatira, uye kuchinjika kwevhu rakaoma-yakasanganiswa dhaka, mataira anonamira, uye EIFS, zvichikonzera kupera kwakasimba uye kunogara kwenguva refu. Iko kushandiswa kweRDP muzvinhu zvekuvakisa kune akati wandei mabhenefiti, anosanganisira kuvandudzwa kwekuita, kushanda, uye kuita kwezvakatipoteredza.