Mafi kyawun Ayyuka na UV Powder Coatings

Rufin foda warke ta ultraviolet haske (UV foda shafi) ne fasaha da cewa hadawa da abũbuwan amfãni daga thermosetting foda shafi da wadanda na ruwa ultraviolet-cure shafi fasaha. Bambanci daga daidaitaccen murfin foda shine cewa narkewa da curing sun rabu cikin matakai guda biyu: a kan fallasa zuwa zafi, UV-curable foda shafi barbashi narke da kuma gudana a cikin kamanni fim da aka crosslinked kawai a lokacin da aka fallasa zuwa UV haske. Shahararriyar hanyar haɗin kai da ake amfani da ita don wannan fasaha ita ce tsarin tsattsauran ra'ayi na kyauta: kunna photoinitiators a cikin narkakkar fim ɗin ta hanyar hasken UV a cikin samuwar radicals kyauta waɗanda ke fara amsawar polymerization wanda ya haɗa da resin guda biyu.

Ƙarshe shafi al'amari da aikin dogara a kan zabi na guduro tsarin, photoinitiators, pigments, fillers, Additives, foda shafi yanayin tsari da kuma curing sigogi. Ana iya tantance ingancin haɗin kai na ƙayyadaddun tsari da yanayin warkewa ta amfani da photocalorimetry daban-daban.

Kwanan baya ingantawa na UV foda coatings ya haifar da matuƙar kyau kwarara fita, yin m gama achievable a yanayin zafi kamar yadda low as 100 ° C. Fasaha da tattalin arziki fa'idodin bayyana girma sha'awa a UV foda fasaha.

Haɗin polyester da epoxy chemistries waɗanda aka haɓaka don foda na UV suna ba da damar ƙalubalen buƙatu na sassan kasuwa kamar itace, hadawar itace, filastik da ƙarfe don cika cikakke. Ko da yake "matasan powders" hada polyester da epoxy resins da aka sani fiye da shekaru 20 a thermosetting powders, da mataki na warkewa samu a low yanayin zafi (misali, 120 °C) zama "kawai mai kyau isa" kawai bayan dogon curing sau. Ya bambanta, UV-warke foda shafi fina-finai cika mafi stringent bayani dalla-dalla bayan "kayan mintoci" karkashin zafi da UV haske.