Menene Acrylic Powder Coatings
acrylic foda shafi foda suna da kyawawan kaddarorin kayan ado, juriya na yanayi, da juriya na gurɓataccen yanayi, kuma suna da taurin ƙasa. Kyakkyawan sassauci. Amma farashin yana da yawa kuma juriya na lalata ba shi da kyau. Saboda haka, kasashen Turai generalyi amfani da foda mai tsabta na polyester (resin mai ɗauke da carboxyl, warkewa tare da TGIC); (hydroxyl-dauke da polyester guduro an warke tare da isocyanate) a matsayin yanayin juriya foda shafi.
Abun da ke ciki
Acrylic foda coatings sun hada da acrylic resins, pigments da fillers, additives da curing jamiái.
iri
Saboda ƙungiyoyin ayyuka daban-daban waɗanda ke cikin tsarin ƙwayoyin cuta, resin acrylic suna da nau'ikan masu zuwa:
1. Acrylic resin dauke da glycidyl ether aiki kungiyar.
2. Acrylic resin dauke da carboxyl aiki kungiyar.
3. Acrylic guduro dauke da hydroxyl aiki kungiyar.
Yanayin Magani
Saboda sifofi daban-daban da ƙungiyoyin aiki da ke ƙunshe a cikin resins na acrylic, zaɓaɓɓun wakilai masu warkarwa da hanyoyin warkewa suma sun bambanta. Bayan haɗe-haɗe, kayan jiki da na sinadarai ma sun bambanta.
Yanayin warkewa na acrylic foda coatings ne:
Maganin zafin jiki: 180 ℃ ~ 200 ℃;
Lokacin warkewa: 15min ~ 20min;
Hanyoyin aikace-aikace na thermosetting foda coatings za a iya amfani da acrylic foda shafi.
samar da tsari
Akwai hanyoyi guda hudu don samar da acrylic foda shafi:
Ɗayan ita ce hanyar ƙaya.
Na biyu shine hanyar bushewar feshi.
Na uku shine hanyar rigar.
A ƙarshe, daidai yake da hanyar samarwa na epoxy foda shafi.
Hanyar samarwa ta huɗu ana amfani da ita.
Tsarin shine kamar haka:
Hadawa → extrusion → murkushewa → sieving → marufi