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Kodi zigawo za redispersible emulsion powder ndi chiyani

Kodi zigawo za redispersible emulsion powder ndi chiyani

Redispersible Emulsion Powder (RDP) nthawi zambiri imakhala ndi zigawo zingapo zofunika, chilichonse chimagwira ntchito inayake popanga. Ngakhale mapangidwe ake amatha kusiyanasiyana kutengera wopanga ndi zomwe akufuna, zigawo zikuluzikulu za RDP nthawi zambiri zimakhala:

  1. Polima Base: Chigawo chachikulu cha RDP ndi polima yopanga, yomwe imapanga msana wa ufa. Polima wodziwika kwambiri mu RDP ndi vinyl acetate-ethylene (VAE) copolymer. Ma polima ena monga vinyl acetate-vinyl versatate (VA/VeoVa) copolymers, ethylene-vinyl chloride (EVC) copolymers, ndi ma polima a acrylic angagwiritsidwenso ntchito malinga ndi zomwe mukufuna.
  2. Protective Colloids: RDP ikhoza kukhala ndi ma colloid oteteza monga ma cellulose ethers (monga hydroxypropyl methylcellulose), polyvinyl alcohol (PVA), kapena starch. Izi colloids kuthandiza bata emulsion pa kupanga ndi kusunga, kuteteza coagulation kapena sedimentation wa polima particles.
  3. Plasticizers: Plasticizers amawonjezeredwa ku RDP formulations kusintha kusinthasintha, kugwira ntchito, ndi kumamatira. Mapulasitiki omwe amagwiritsidwa ntchito mu RDP amaphatikizapo glycol ethers, polyethylene glycols (PEGs), ndi glycerol. Zowonjezera izi zimathandizira kukhathamiritsa magwiridwe antchito ndi machitidwe a RDP muzogwiritsa ntchito zosiyanasiyana.
  4. Ma Agents Obalalitsa: Obalalitsa amagwiritsidwa ntchito kuwonetsetsa kubalalitsidwa kofanana ndi kufalikiranso kwa tinthu ta RDP m'madzi. Mankhwalawa amathandizira kunyowetsa ndi kubalalika kwa ufawo m'makina amadzimadzi, zomwe zimapangitsa kuti zikhale zosavuta kuphatikizidwa muzopanga komanso kukhazikika kwazomwe zimabalalika.
  5. Zodzaza ndi Zowonjezera: Mapangidwe a RDP amatha kukhala ndi zodzaza ndi zowonjezera monga calcium carbonate, silica, kaolin, kapena titanium dioxide. Zowonjezera izi zimathandizira kukonza magwiridwe antchito, mawonekedwe, ndi mawonekedwe a RDP muzinthu zinazake. Atha kukhalanso ngati zowonjezera kapena zowonjezera kuti zithandizire kukulitsa zinthu monga opacity, kulimba, kapena rheology.
  6. Ma Agents Ogwira Ntchito Pamwamba: Zogwiritsa ntchito pamwamba pake kapena zowonjezera zitha kuwonjezeredwa ku mapangidwe a RDP kuti awonjezere kunyowetsa, kubalalitsidwa, ndi kugwilizana ndi zigawo zina popanga. Othandizirawa amathandizira kuchepetsa kupsinjika kwa pamwamba ndikulimbikitsa kuyanjana pakati pa tinthu tating'ono ta RDP ndi sing'anga yozungulira, kuwonetsetsa kufalikira kwa yunifolomu komanso kugwira ntchito moyenera pamapulogalamu.
  7. Anti-foaming Agents: Anti-foaming agents angaphatikizidwe mu RDP formulations kuteteza kupanga thovu panthawi yopanga kapena kugwiritsa ntchito. Othandizirawa amathandizira kuchepetsa kutsekeka kwa mpweya ndikuwongolera kukhazikika komanso kusasinthika kwa ma RDP dispersions, makamaka munjira zosakanikirana zometa ubweya wambiri.
  8. Zowonjezera Zina: Kutengera ndi zofunikira zenizeni ndi machitidwe a RDP formulations, zowonjezera zina monga ma cross-linking agents, stabilizers, antioxidants, kapena colorants angaphatikizidwenso. Zowonjezera izi zimathandizira kukonza mawonekedwe ndi magwiridwe antchito a RDP pazogwiritsa ntchito zina komanso zosowa za ogwiritsa ntchito.

zigawo zikuluzikulu za redispersible emulsion ufa ntchito synergistically kupereka ankafuna katundu monga adhesion, kusinthasintha, kukana madzi, ndi workability zosiyanasiyana zomangamanga ndi ntchito. Kusankhidwa ndi kupangidwa kwa zigawozi ndizofunikira kwambiri kuti tikwaniritse ntchito yabwino komanso mtundu wazinthu za RDP.


Nthawi yotumiza: Feb-16-2024
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