Ts'ebetso e nepahetseng ea Liaparo tsa Phofo tsa UV

Ho apara poda folisoa ke khanya ea ultraviolet ( UV powder coating ) ke theknoloji e kopanyang melemo ea ho roala phofo ea thermosetting le ea theknoloji ea ho roala ka metsi a ultraviolet. Phapang ho tsoa ho phofshoana e tloaelehileng ea phofshoana ke hore ho qhibiliha le ho folisa ho arotsoe ka mekhoa e 'meli e fapaneng: ka mor'a ho pepesehela mocheso, likaroloana tsa phofshoana e ka phekolehang ka UV ea qhibiliha ebe e phalla ka har'a filimi e homogeneous e hokahanngoang feela ha e pepesehetse leseli la UV. Mokhoa o tummeng ka ho fetisisa oa crosslinking o sebelisetsoang theknoloji ena ke mokhoa oa mahala oa radical: ts'ebetso ea li-photoinitiators ka filimi e entsoeng ka ho qhibilihisoa ka leseli la UV li etsa hore ho thehoe li-radicals tsa mahala tse qalang karabelo ea polymerization e kenyelletsang resin double bonds.

Karolo ea ho qetela ea ho roala le ts'ebetso e ipapisitse le khetho ea litsamaiso tsa resin, li-photoinitiators, li-pigment, li-filler, li-additives, maemo a ts'ebetso ea ho roala phofo le liparamente tsa pholiso. Bokhoni ba ho kopanya ba mefuta e itseng le maemo a pheko bo ka hlahlojoa ka ho sebelisa photocalorimetry e fapaneng.

Ntlafatso ea morao-rao ea liphahlo tsa phofo ea UV e entse hore ho be le phallo e ntle ka ho fetesisa, ho etsa hore liphetho tse boreleli li fihlellehe mochesong o ka tlase ho 100 ° C. Melemo ea theknoloji le moruo e hlalosa thahasello e ntseng e hola ea theknoloji ea phofo ea UV.

Motsoako oa lik'hemik'hale tsa polyester le epoxy tse etselitsoeng liphofshoana tsa UV li lumella litlhoko tse phephetsang tsa likarolo tsa 'maraka tse kang patsi, motsoako oa lehong, polasetiki le tšepe hore li fihlelle ka botlalo. Le hoja "li-powders tse nyalisitsoeng" tse kopanyang polyester le li-epoxy resin li 'nile tsa tsejoa ka lilemo tse fetang 20 ka phofo ea thermosetting, tekanyo ea phekolo e finyelloang ka mocheso o tlaase (mohlala, 120 ° C) e fetoha "e lekaneng feela" ka mor'a nako e telele ea ho folisa. Ka lehlakoreng le leng, lifilimi tse koahelang phofo tse phekotsoeng ke UV li phethahatsa lintlha tse thata ka mor'a "metsotso e 'maloa" tlas'a mocheso le lebone la UV.