Bakelite shine resin phenolic.Fenolic resin (PF) wani nau'in samfuran filastik ne na masana'antu.Abubuwan da ake samarwa na resin phenolic sun fi phenol da aldehyde, kuma ana amfani da phenol da formaldehyde.Suna yin polymerized ta hanyar ɗaukar hoto a ƙarƙashin catalysis na acid, tushe da sauran abubuwan haɓakawa.Akwai nau'ikan samar da masana'antu iri biyu: tsarin bushewa da tsarin rigar.
A karkashin aiki na daban-daban masu kara kuzari, phenol da aldehyde na iya samar da nau'ikan resin phenolic iri biyu: ɗaya shine guduro na phenolic thermoplastic, ɗayan kuma shine resin phenolic thermosetting.Za'a iya warkewa na farko zuwa tsarin toshe ta hanyar ƙara wakili mai warkarwa da dumama, yayin da na ƙarshen za'a iya warkewa zuwa tsarin toshe ta hanyar dumama ba tare da ƙara wakili mai warkewa ba.
Thermoplastic phenolic guduro da thermosetting phenolic guduro za a iya amfani da kawai ta hanyar musayar cibiyar sadarwa kafa ta warkewa.Tsarin warkewa shine ci gaba da haɓakar polycondensation da ƙirƙirar samfuran sifa.Wannan tsari ya sha bamban da narkewa da kuma warkar da dumbin thermoplastics.Duka matakai na jiki da na sinadarai ba za su iya jurewa ba.
Ana iya ƙera resin phenolic a cikin hanyar da ta dace da thermoplastic.PF don gyare-gyaren allurayana buƙatar ruwa mai kyau, ana iya ƙera shi a ƙarƙashin ƙarancin allura, ƙarancin zafi mai ƙarfi, saurin ƙarfi mai ƙarfi, kyalli mai kyau na sassa na filastik, sauƙin lalata, kuma babu gurɓataccen ƙura.Koyaya, gyaran allura shima yana da illa.Misali, narke yana iyakance ta nau'in filler, don haka bai dace da amfani da ƙarin abubuwan da aka saka don samar da sassan filastik ba.Ba za a iya sake yin fa'ida da yawa na kofofi da tashoshi ba bayan an warke, kuma ana iya jefar da su kawai.
A cikin wata kalma, ana iya samar da resin thermoplastic phenolic ta hanyar injin gyare-gyaren allura na yau da kullun, amma yanayin tsari ana sarrafa shi sosai.Thermosetting phenolic guduro dole ne a samar da wani musamman allura gyare-gyaren na'ura don phenolic guduro, da kuma mold kuma rungumi dabi'ar musamman zane tsarin.
Ana amfani da shi sosai a cikina'urorin lantarki, kwasfa, rikon fitila,sandwich inji bawo, da sauransu;Koyaya, ƙarancin aikinsa da tsarin latsa matsala na iya iyakance haɓakarsa.Tare da fitowar wasu robobi, samfuran bakelite ba su da sauƙin gani a yanzu.Ko da yake bakelite kayayyakin bukatar da za a mai tsanani ga gyare-gyaren, da aiki lokaci ya fi na talakawa robobi, da mold lalacewa ne ya fi girma, wanda yana bukatar mafi girma da bukatun ga karfe, amma saboda da m matsayi a farashin albarkatun kasa, shi ne. har yanzu maye gurbin sassa na filastik da yawa.
Lokacin aikawa: Yuli-15-2022