Kodi mitundu ya ufa wa polima wopangidwanso ndi chiyani?

Redispersible polymer powders (RPP) amapezeka m'mitundu yosiyanasiyana, iliyonse yogwirizana ndi ntchito komanso zofunikira pakuchita. Mapangidwe, katundu, ndi momwe amagwiritsidwira ntchito ma RPP amatha kusiyanasiyana kutengera zinthu monga mtundu wa polima, zowonjezera za mankhwala, ndi njira zopangira. Nayi mitundu yodziwika bwino ya ufa wa polima wotulukanso:

1. Mtundu wa Polima:
   • Ethylene-Vinyl Acetate (EVA) RPP: Ma RPP opangidwa ndi EVA ndi osunthika ndipo amagwiritsidwa ntchito kwambiri pomanga monga zomatira matailosi, matope, ma renders, ndi zodzipangira zokha. Amapereka kusinthasintha kwabwino, kumamatira, komanso kukana madzi.
   • Vinyl Acetate-Ethylene (VAE) RPP: Ma RPP opangidwa ndi VAE ndi ofanana ndi ma EVA RPP koma atha kupereka kukana kwamadzi komanso kulimba. Ndioyenera kugwiritsidwa ntchito monga zomatira matailosi, ma membrane osinthika oletsa madzi, ndi zosindikizira.
   • Acrylic RPP: Ma RPP opangidwa ndi Acrylic amapereka kumamatira kwabwino, kukana nyengo, komanso kulimba. Nthawi zambiri amagwiritsidwa ntchito popanga zida zakunja ndi zomaliza (EIFS), zokutira zotsekereza madzi, komanso matope ochita bwino kwambiri.
   • Styrene-Acrylic RPP: Ma Styrene-acrylic-based RPPs amapereka mphamvu yomatira, kusinthasintha, komanso kukana madzi. Ndizoyenera kugwiritsa ntchito monga ma tile grouts, crack fillers, ndi zokutira zojambulidwa.
   • Polyvinyl Alcohol (PVA) RPP: Ma RPP opangidwa ndi PVA amapereka kusinthasintha kwakukulu, kupanga mafilimu, komanso kukana alkalis. Amagwiritsidwa ntchito kwambiri popanga utoto wamkati, zomangira zomangika, ndi ma pulasitala okongoletsa.
2. Zowonjezera Zogwira Ntchito:
   • Plasticizers: Ma RPP ena amatha kukhala ndi mapulasitiki kuti azitha kusinthasintha, kugwira ntchito, komanso kumamatira. Ma RPP opangidwa ndi pulasitiki nthawi zambiri amagwiritsidwa ntchito m'ma membrane osinthika oletsa madzi, ma sealants, ndi ma crack fillers.
   • Ma Stabilizers: Ma Stabilizer amawonjezeredwa ku mapangidwe a RPP kuti apititse patsogolo moyo wa alumali, kukhazikika kosungirako, ndi kufalikira. Iwo amathandiza kupewa agglomeration ndi kuonetsetsa yunifolomu kubalalitsidwa kwa particles RPP m'madzi.
3. Kukula kwa Particle ndi Morphology:
   • Ma RPP amapezeka mumitundu yosiyanasiyana ya tinthu ndi ma morphologies kuti akwaniritse zofunikira zenizeni. Tinthu tating'onoting'ono tating'onoting'ono titha kupanga mapangidwe abwinoko a filimu komanso kusalala kwa pamwamba, pomwe tinthu tating'onoting'ono titha kupititsa patsogolo kusungirako madzi komanso makina.
4. Maphunziro apadera:
   • Opanga ena amapereka ma RPP apadera ogwirizana ndi ntchito zinazake kapena magwiridwe antchito. Izi zitha kuphatikiza ma RPP omwe ali ndi mphamvu yolimbikitsira madzi, kukhazikika kwa kuzizira, kapena kutulutsa koyendetsedwa bwino.
5. Mapangidwe Amakonda:
   • Kuphatikiza pa mitundu yokhazikika, mapangidwe amtundu wa RPP amatha kupangidwa kuti akwaniritse zosowa zapadera za makasitomala kapena ma projekiti. Ma RPP achizolowezi amatha kuphatikizira ma polima, zowonjezera, kapena zosintha zamachitidwe kutengera zomwe kasitomala akufuna.

mitundu ya ufa wa polima womwe umapezekanso pamsika umawonetsa zosowa zosiyanasiyana zamafakitale monga zomangamanga, utoto ndi zokutira, zomatira, ndi nsalu, pomwe ma RPP amatenga gawo lofunikira pakupititsa patsogolo magwiridwe antchito, kulimba, ndi magwiridwe antchito.