Ruzivo rwezve redispersible emulsion poda

Redispersible Emulsion Powder (RDP), inozivikanwawo seredispersible polymer poda, inoyerera-inoyerera, chena poda inowanikwa nekupfapfaidza kuomesa emulsion yevinyl acetate-ethylene copolymer kana mamwe mapolymer. Icho chinowedzera chakasiyana-siyana chinoshandiswa mukuvaka zvinhu kuvandudza zvivakwa zvakaita sekunamatira, kuchinjika, kushanda, uye kuramba mvura. Heano iwo madiki ezve redispersible emulsion poda:

Kuumbwa:

• Polymer Base: Chinhu chikuru cheRDP i polymer yakagadzirwa, kazhinji vinyl acetate-ethylene (VAE) copolymer. Mamwe mapolymers akadai sevinyl acetate-vinyl versatate (VA/VeoVa) copolymers, ethylene-vinyl chloride (EVC) copolymers, uye acrylic polymers anogonawo kushandiswa zvichienderana nezvinodiwa.
• Protective Colloids: RDP inogona kunge iine macolloid anodzivirira akadai se cellulose ethers (eg, hydroxypropyl methylcellulose), polyvinyl doro (PVA), kana starch kuti ivandudze kugadzikana uye redispersibility.

Kugadzira Maitiro:

1. Emulsion Formation: Iyo polymer inoparadzirwa mumvura pamwe chete nezvimwe zvinowedzera zvakadai sekudzivirira colloids, plasticizers, uye dispersing agents kuti vagadzire emulsion yakagadzikana.
2. Kupfapfaidza Kuomesa: Iyo emulsion inoiswa atomu uye yakapfapfaidzwa mukamuri yekuomesa umo mweya unopisa unobuda mumvura, uchisiya kumashure kwakasimba zvidimbu zvepolymer. Iyo yakapfapfaidzwa-yakaomeswa zvimedu inounganidzwa uye inorongwa kuti iwane inodiwa particle size kugovera.
3. Post-Kurapwa: Zvimedu zvakaomeswa zvinogona kuita mushure mekurapa maitiro sekugadziriswa kwepasi, granulation, kana kusanganiswa nezvimwe zvinowedzera kukwirisa zvivakwa zvakaita sedispersibility, kuyerera, uye kuenderana nezvimwe zvikamu mukuumbwa.

Properties:

• Redispersibility: RDP inoratidzira yakanakisa redispersibility mumvura, ichigadzira yakagadzikana dispersibility yakafanana neyekutanga emulsion pakudzoreredzwa kwemvura. Ichi chivakwa chinovimbisa kugovaniswa kwakafanana uye kushanda kwakafanana mumashandisirwo ekuvaka.
• Kugadzira Firimu: Zvimedu zveRDP zvinogona kubatana uye kugadzira mafirimu epolymer anoenderera pakuomeswa, achipa kunamatira, kuchinjika, uye kusimba kune zvekuvaka senge madhaka, anonamira, uye grouts.
• Kuchengetedzwa Kwemvura: RDP inosimudzira kuchengetedza kwemvura mumasimiti esimende, kuderedza kurasikirwa kwemvura panguva yekumisikidza uye kurapa nekuvandudza kushanda, kunamatira, uye simba rekupedzisira.
• Flexibility uye Crack Resistance: Iyo polymer firimu rakagadzirwa neRDP rinopa kuchinjika uye kutsemuka kuramba kune zvekuvaka, kuderedza njodzi yekutsemuka uye delamination.
• Kugarisana: RDP inoenderana neyakasiyana siyana yemasimende mabhandi, mafirita, akaunganidzwa, uye ekuwedzera anoshandiswa mukuvaka maumbirwo, achibvumira kune zvakasiyana-siyana mashandisirwo uye magadzirirwo.

Applications:

• Tile Adhesives uye Grouts: RDP inovandudza kunamatira, kuchinjika, uye kushorwa kwemvura mumatairi anonamira uye grouts, kuve nechokwadi chekugadzika uye kunogara kwenguva refu kumisikidzwa.
• Exterior Insulation uye Finish Systems (EIFS): RDP inosimudzira kuchinjika, kuramba mamiriro ekunze, uye kutsemuka kuramba kweEIFS machira, ichipa dziviriro uye inoyevedza kukwezva kumadziro ekunze.
• Self-Leveling Compounds: RDP inovandudza kuyerera, kuenzana, uye kupera kwepamusoro mumakomisheni ekuzvimiririra, zvichikonzera kutsetseka uye nhanho pasi.
• Gadzirisa Madhiri uye Renders: RDP inosimudzira kunamatira, kusimba, uye kuparuka kuramba mukugadzirisa madhaka uye renders, kudzoreredza uye kusimbisa zvakakanganisika kongiri zvimiro.

Redispersible Emulsion Powder (RDP) inoita basa rakakosha mukusimudzira kushanda uye kusimba kwezvinhu zvekuvaka, zvichibatsira kumhando uye hupenyu hurefu hwezvivakwa zvekuvaka. Kuita kwayo kwakasiyana-siyana, kuenderana, uye kushanda kwayo kunoita kuti ive yekuwedzera yakakosha mumashandisirwo akasiyana ekuvaka.