Taulai atu ile Cellulose ethers

O a vaega o le pauta emulsion redispersible

O a vaega o le pauta emulsion redispersible

Redispersible Emulsion Powder (RDP) e masani ona aofia ai le tele o vaega autu, e tofu ma se faʻamoemoega faʻapitoa i le faʻatulagaina. E ui o le tuufaatasiga saʻo e mafai ona fesuisuiaʻi e faʻatatau i le gaosiga ma le faʻamoemoeina o le faʻaogaina, o vaega autu o le RDP e masani ona aofia ai:

  1. Polymer Base: O le vaega autu o le RDP o se polymer synthetic, lea e fausia ai le pito i tua o le paʻu. O le polymer sili ona taatele o loʻo faʻaaogaina i le RDP o le vinyl acetate-ethylene (VAE) copolymer. O isi polymers e pei o vinyl acetate-vinyl versatate (VA/VeoVa) copolymers, ethylene-vinyl chloride (EVC) copolymers, ma polymers acrylic e mafai foi ona fa'aoga e fuafua i mea e mana'omia.
  2. Colloids Puipuia: O le RDP e ono aofia ai colloids puipuia e pei ole cellulose ethers (fa'ata'ita'iga, hydroxypropyl methylcellulose), polyvinyl alcohol (PVA), po'o le masoa. O nei colloids e fesoasoani e faʻamautu le emulsion i le taimi o le gaosiga ma le teuina, puipuia le coagulation poʻo le palapala o le polymer particles.
  3. Plasticizers: Faʻapipiʻi mea faʻapipiʻi i RDP formulations e faʻaleleia atili ai le fetuutuunai, galue, ma le pipii. Palasitika masani e faʻaaogaina i le RDP e aofia ai glycol ethers, polyethylene glycols (PEGs), ma glycerol. O nei faʻaopoopoga e fesoasoani e faʻamalieina le faʻatinoga ma le gaioiga o uiga o le RDP i faʻaoga eseese.
  4. Sui Fa'asalalau: O lo'o fa'aaogaina mea fa'asalalau e fa'amautinoa ai le fa'asalalauina tutusa ma le toe fa'asalalauina o vaega o le RDP i le vai. O nei vailaʻau e faʻaleleia ai le susu ma le faʻasalalauina o le paʻu i totonu o le vai, e mafai ai ona faʻafaigofie ona tuʻufaʻatasia i totonu o faʻatulagaga ma faʻaleleia atili le mautu o faʻasalalauga e maua.
  5. Fillers ma Additives: RDP formulations e mafai ona i ai mea faʻatumu ma faʻaopoopoga e pei o le calcium carbonate, silica, kaolin, poʻo le titanium dioxide. O nei faʻaopoopoga e fesoasoani e faʻaleleia le faʻatinoga, faʻasologa, ma foliga vaaia o le RDP i faʻamatalaga patino. E mafai fo'i ona avea ma mea fa'alautele po'o mea fa'aopoopo fa'atino e fa'aleleia ai meatotino e pei ole opacity, umi, po'o le rheology.
  6. Surface Active Agents: E mafai ona faʻapipiʻi i luga ole laʻau faʻamalositino poʻo mea faʻapipiʻi ile RDP formulations e faʻaleleia ai le susu, faʻasalalau, ma le fetaui ma isi vaega ile faʻasologa. O nei sooupu e fesoasoani e faʻaitiitia le vevesi i luga ole laiga ma faʻalauteleina fegalegaleaiga i le va o vaega RDP ma le ala o loʻo siomia ai, faʻamautinoa le faʻasalalauina tutusa ma le lelei o le faʻatinoga i talosaga.
  7. Anti-foaming Agents: Anti-foaming agents e mafai ona aofia i RDP formulations e taofia ai le foam i le taimi o le gaosiga poʻo le faʻaogaina. O nei sooupu e fesoasoani e faʻaitiitia le faʻaogaina o le ea ma faʻaleleia le mautu ma le tumau o faʻasalalauga RDP, aemaise lava i faiga faʻafefiloi maualuga.
  8. Isi Fa'aopoopo: Fa'alagolago i mana'oga fa'apitoa ma ta'iala o fa'atinoga o fa'asologa o le RDP, e mafai fo'i ona aofia ai isi fa'aopoopo e pei o so'o feso'ota'i, stabilizers, antioxidants, po'o lanu. O nei mea fa'aopoopo e fesoasoani e fa'afetaui meatotino ma galuega a le RDP mo fa'aoga fa'apitoa ma mana'oga fa'au'uga.

o vaega ole redispersible emulsion pauta galue synergistically e maua ai meatotino manaomia e pei o le pipii, fetuutuunai, vai tetee, ma le galue i mea faufale eseese ma talosaga. O le filifilia ma le faʻatulagaina o nei vaega e taua tele i le ausiaina o le faʻatinoga lelei ma le lelei i oloa RDP.


Taimi meli: Feb-16-2024
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