Ana kuma kiran resin phenolicbakelite, wanda kuma aka sani da bakelite foda.Asalin abu ne mara launi (fari) ko ruwan rawaya-launin ruwan kasa, kasuwa yakan kara da abubuwa masu canza launin don ya zama ja, rawaya, baki, kore, ruwan kasa, shudi da sauran launuka, kuma yana da granular da powdery.Mai juriya ga raunin acid da raunin alkali, zai bazu idan ya kasance mai ƙarfi acid kuma ya lalace idan akwai alkali mai ƙarfi.Mai narkewa a cikin acetone, ruwa, barasa da sauran kaushi na halitta.Ana samun shi ta hanyar polycondensation na phenolic aldehyde ko abubuwan da suka samo asali.M phenolic guduro ne rawaya, m, amorphous blocky abu, ja saboda free phenol, matsakaicin takamaiman nauyi na mahaluži ne game da 1.7, sauƙi mai narkewa a cikin barasa, insoluble a cikin ruwa, barga zuwa ruwa, rauni acid da rauni alkali bayani.Guduro ne wanda aka yi ta polycondensation na phenol da formaldehyde a ƙarƙashin yanayi mai kara kuzari, tsaka tsaki da wankewa da ruwa.Saboda zabi na mai kara kuzari, ana iya raba shi zuwa nau'i biyu: thermosetting da thermoplastic.Phenolic guduro yana da kyau acid juriya, inji Properties da zafi juriya, kuma ana amfani da ko'ina a anti-lalata injiniya, adhesives, harshen retardant kayan, nika dabaran masana'antu da sauran masana'antu.
Phenolic guduro foda wani irin thermoplastic phenolic guduro kafa ta polycondensation na phenol da formaldehyde a acidic matsakaici.Ana iya narkar da shi a cikin ethanol kuma ya zama thermosetting ta ƙara 6-15% urotropine.Yana za a iya gyara a 150 digiri°C kuma yana da takamaiman ƙarfin injina.da kaddarorin rufin lantarki.
Babban fasalin guduro na phenolic shine babban juriya na zafin jiki, kuma yana iya kiyaye amincin tsarin sa da kwanciyar hankali mai girma ko da a yanayin zafi sosai.Sabili da haka, ana amfani da resins na phenolic a cikin filaye masu zafi, irin su kayan da aka yi amfani da su, kayan juzu'i, adhesives da masana'antu.
Wani muhimmin aikace-aikacen resin phenolic shine azaman ɗaure.Phenolic resins suna da yawa kuma suna dacewa tare da nau'ikan nau'ikan nau'ikan nau'ikan kwayoyin halitta da abubuwan da ba a iya gani ba.Resins phenolic da aka ƙera da kyau suna jika sosai da sauri.Kuma bayan haɗin giciye, zai iya samar da ƙarfin injin da ake buƙata, juriya na zafi da kaddarorin lantarki don kayan aikin abrasive, kayan haɓakawa, kayan gogayya da bakelite.
Ana amfani da resins na phenolic mai narkewa ko barasa mai narkewa don lalata takarda, zanen auduga, gilashi, asbestos da sauran abubuwa makamantan su don samar musu da ƙarfin injin, kaddarorin lantarki, da sauransu. Misalai na yau da kullun sun haɗa da rufin lantarki da masana'antar lamination na inji, kama. fayafai da takarda tace don masu tace motoci.
Fenolic resin Properties:
Babban aikin zafin jiki: Mafi mahimmancin fasalin resin phenolic shine tsayin daka na zafin jiki, ko da a yanayin zafi sosai, yana iya kiyaye amincin tsarin sa da kwanciyar hankali.
Ƙarfin haɗin gwiwa: muhimmin aikace-aikacen guduro na phenolic shine azaman ɗaure.Phenolic resins suna da yawa kuma suna dacewa tare da nau'ikan nau'ikan nau'ikan nau'ikan kwayoyin halitta da abubuwan da ba a iya gani ba.
Babban adadin ragowar carbon: Ƙarƙashin yanayin iskar gas mai zafi tare da zafin jiki kusan 1000°C, phenolic resins za su samar da babban ragowar carbon, wanda ke da kyau don kiyaye tsarin tsarin resins phenolic.
Ƙananan hayaki da ƙarancin guba: Idan aka kwatanta da sauran tsarin guduro, tsarin resin phenolic yana da fa'idodin ƙananan hayaki da ƙarancin guba.Game da konewa, tsarin resin phenolic da aka samar ta hanyar dabarar kimiyya zai rushe sannu a hankali don samar da hydrogen, hydrocarbons, tururin ruwa da carbon oxides.Hayakin da aka samar a lokacin tsarin rushewa yana da ƙananan ƙananan, kuma yawan guba yana da ƙananan ƙananan.
Juriya na sinadarai: Gudun phenolic mai haɗe-haɗe na iya yin tsayayya da bazuwar kowane sinadari.Kamar man fetur, man fetur, barasa, glycol, maiko da hydrocarbons daban-daban.
Maganin zafi: Maganin zafi zai ƙara yawan zafin canjin gilashin na resin da aka warke, wanda zai iya ƙara inganta kaddarorin guduro.
Kumfa: Phenolic kumfa wani nau'i ne na filastik kumfa da aka samu ta hanyar kumfa resin phenolic.Idan aka kwatanta da kumfa polystyrene, kumfa polyvinyl chloride, kumfa polyurethane da sauran kayan da suka mamaye kasuwa a farkon mataki, yana da kyakkyawan aiki na musamman dangane da jinkirin harshen wuta.
Lokacin aikawa: Afrilu-17-2023