Tšebeliso ea Polyester Epoxy Combined Chemistry bakeng sa ho roala Phofo ea UV

Khemistri bakeng sa UV Powder coating.webp

Motsoako oa polyester ea methacrylated le acrylated epoxy resin e fana ka motsoako o khahlisang oa thepa ho filimi e phekotsoeng. Ho ba teng ha mokokotlo oa polyester ho fella ka khanyetso e ntle ea liphahlo litekong tsa boemo ba leholimo. Mokokotlo oa epoxy o fana ka khanyetso e ikhethang ea lik'hemik'hale, ho khomarela hantle le ho boreleli. Karolo e khahlang ea 'maraka bakeng sa tsena UV ho apara ka phofo ke sebaka sa li-laminate tsa PVC ho liphanele tsa MDF bakeng sa indasteri ea thepa ea ka tlung.
Motsoako oa polyester / epoxy o finyelloa ka mehato e mene e meholo.

  1. Polycondensation ho qhibiliha ha phthalic dicarboxylic acid derivative (PA) e nang le glycol joalo ka neopenyl glycol (PG) ka 240 °C boteng ba esterification catalyst joalo ka butyl stannoic acid ho hlahisa polyester e felisitsoeng ka carboxy.
  2. Keketso ea glycidylmethacrylate (GMA) ho polyester e qhibilihisitsoeng ea carboxy ha e ntse e bolokiloe ka tlase ho 200 °C. Lihlopha tsa Methacrylate li kenngoa qetellong ea liketane tsa polyester ka karabelo e potlakileng ea ho eketsa "epoxy / carboxy". Bakeng sa mabaka a chefo, glycidylacrylate ha e so ka e sebelisoa. Gelation ea litlamo tse peli e qojoa ka tšebeliso ea li-inhibitors tse loketseng.
  3. Ho eketsoa ha acrylic acid (AA) ho resin ea diepoxy e qhibilihisitsoeng ho hlahisa polymer ea epoxy diacrylate.
  4. Polyester ea methacrylated le resin ea epoxy e nang le acrylated li kopantsoe ka homogeneously ke extrusion.

Maikutlo a koetsoe