Menene kayan fr4 epoxy fiber fiber board

Wane abu ne fr4 epoxy glass fiber board? Wane abu ne jirgin resin epoxy? Zai fi kyau a yi amfani da waɗannan kayan:

A. Yana da resin epoxy, wanda ke nufin sunan gabaɗayan polymers waɗanda ke ɗauke da rukunin epoxy. Yafi dacewa da kafofin watsa labarai tare da ƙarancin kayan lalata. Yana da juriya na alkali mai ban mamaki kuma yana iya tsayayya da lalata janar acid (ban da hydrofluoric acid). An rage yawan buƙatun resins na epoxy a cikin kasuwar lalata. Babban dalilin shi ne cewa sinadarin polyester da ba a cika cika shi ba a cikin resins masu jurewa na lalata ya haɓaka cikin sauri kuma akwai iri da yawa. Kasuwar cikin gida tana da farkon farawar reshen polyester wanda ba a cika cikawa ba, don haka resins na epoxy Har yanzu yana ɗaya daga cikin manyan nau’ikan resin a fagen hana lalata. Babban halayen resin epoxy shine ƙarfin haɗin gwiwa, ƙarancin ƙanƙantar da kai, babban ɓarkewar samfur, da babban farashi. Amfani da zafin jiki na resin da aka warke a zafin jiki na ɗaki bai wuce 80 ° C ba;

B. Shi ne wakilin maganin fr4 epoxy glass board) epoxy resin. Akwai nau’ikan amine da yawa, anhydrides acid, mahaɗan resin da sauransu. Daga cikinsu, mahaɗan amine sune aka fi amfani da su. Za a iya raba su cikin amine mai kitse, amine mai ƙanshi da amina mai canzawa. Ire-iren amine da yawa, kamar ethylenediamine, m-phenylenediamine, xylylenediamine, polyamide, diethylenetriamine da sauran mahadi, sun fi guba da ƙamshi, don haka sannu a hankali ana amfani da su ta hanyar ba masu guba da ƙananan masu guba masu guba (kamar: T31 , 590, C20, da dai sauransu) a maimakon haka, ana iya warkar da irin wannan wakili na warkewa ko da a ƙarƙashin ruwa a saman rigar tushe, don haka mutane suna ƙara mai da hankali da yabo;

C. Yana da fr4 epoxy glass fiberboard diluent. Yawanci ana narkar da sinadarin epoxy tare da mayukan da ba sa aiki kamar su ethanol, acetone, benzene, toluene, xylene, da dai sauransu Za’a iya haɗawa da yin amfani da ruwa, wani lokacin don rage warkar da masu narkewa kamar su propylene oxide butyl ether, propylene oxide phenyl ether, polyglycidyl ether, da sauransu kuma ana amfani da su don ƙuntatawar samfurin da aka gama, don rage pores da fasa;

D. Yana da plasticizer da toughening wakili don fr4 epoxy glassboard fiberboard. Gudun epoxy mai sauƙi ya fi rauni bayan warkarwa, kuma yana da ƙarancin tasiri mai ƙarfi, lanƙwasa ƙarfi da juriya mai zafi. Ana amfani da filastik da masu dariya don yin Resin yana ƙara filastik, yana inganta tauri, yana ƙara ƙarfin lanƙwasa da tasiri mai ƙarfi;

E. Yana mai cikawa, foda, dunƙule mai kyau, ƙima mara nauyi, da flakes na gilashi gaba ɗaya ana kiran su fillers. Ƙara filler da ya dace na iya rage farashin samfur da haɓaka aikinsa. Adadin mai cikawa a manne gabaɗaya resin Adadin 20-40% (nauyi), adadin na iya zama ƙari lokacin shirya putty, gabaɗaya na iya zama sau 2 zuwa 4 adadin resin, galibi ana amfani da foda shine ma’adini ma’adini, ain. foda, ban da graphite foda, m kore Rock foda, talcum foda, mica foda, da dai sauransu.