Fenolike

Fenolike resin nayo yitwabakelite, bizwi kandi nk'ifu ya bakelite.Ubusanzwe ibintu bitagira ibara (byera) cyangwa umuhondo-umukara ibintu bisobanutse, isoko ikunze kongeramo ibintu byamabara kugirango igaragare itukura, umuhondo, umukara, icyatsi, icyatsi, ubururu nandi mabara, kandi ni granule na poro.Kurwanya aside idakomeye na alkali idakomeye, izabora mugihe acide ikomeye na korode mugihe alkali ikomeye.Gushonga muri acetone, amazi, inzoga nizindi miti ikungahaye.Iraboneka na polycondensation ya fenolike aldehyde cyangwa ibiyikomokaho.Ibisigarira bikomeye bya fenolike ni umuhondo, ubonerana, amorphous blocky, itukura bitewe na fenol yubusa, impuzandengo yuburemere bwihariye bwikigo igera kuri 1.7, gushonga byoroshye muri alcool, kudashonga mumazi, bihamye kumazi, acide nkeya hamwe nigisubizo cya alkali.Nibisigarira bikozwe na polycondensation ya fenol na formaldehyde mugihe cya catalizator, kutabogama no gukaraba amazi.Bitewe no guhitamo catalizator, irashobora kugabanywamo ubwoko bubiri: thermosetting na thermoplastique.Ibisigarira bya fenolike bifite aside irwanya aside, imiterere yubukanishi hamwe nubushyuhe bwo kurwanya ubushyuhe, kandi ikoreshwa cyane mubuhanga bwo kurwanya ruswa, ibifatika, ibikoresho byangiza umuriro, gusya ibiziga hamwe nizindi nganda.

Ifu ya fenolike ya resin ni ubwoko bwa resinoplastique ya fenolike ikorwa na polycondensation ya fenol na formaldehyde muburyo bwa acide.Irashobora gushonga muri Ethanol hanyuma igahinduka thermosetting wongeyeho 6-15% urotropine.Irashobora kubumbwa kuri 150°C kandi ifite imbaraga zubukanishi.n'imashanyarazi.

Ikintu nyamukuru kiranga fenolike irwanya ubushyuhe bwinshi, kandi irashobora kugumana ubusugire bwimiterere nuburinganire bwimiterere ndetse no mubushyuhe bwinshi.Kubwibyo, ibisigarira bya fenolike bikoreshwa mubushuhe bwo hejuru, nkibikoresho bivunika, ibikoresho byo guteranya, ibifata ninganda zikora inganda.

Ikoreshwa ryingenzi rya fenolike resin ni nkibihuza.Ibisigarira bya fenolike birahinduka kandi birahujwe nubwoko butandukanye bwuzuza ibinyabuzima na organic organique.Ibishushanyo mbonera bya fenolike byashizweho vuba vuba.Kandi nyuma yo guhuza, irashobora gutanga imbaraga zumukanishi zisabwa, kurwanya ubushyuhe hamwe nibikoresho byamashanyarazi kubikoresho byangiza, ibikoresho bivunika, ibikoresho byo guteranya hamwe na bakelite.

Amazi ashonga ya fenolike cyangwa ibisigazwa bya fenolike ya alcool akoreshwa mu gutera inda impapuro, igitambaro cya pamba, ikirahure, asibesitosi nibindi bintu bisa kugirango abaha imbaraga za mashini, ibikoresho byamashanyarazi, nibindi. disiki no kuyungurura impapuro kumashanyarazi.

Imiterere ya fenolike:

Ubushyuhe bwo hejuru: Ikintu cyingenzi kiranga fenolike ni ukurwanya ubushyuhe bwinshi, ndetse no ku bushyuhe bwo hejuru cyane, burashobora kugumana ubusugire bwimiterere no guhagarara neza.

Imbaraga zingirakamaro: Ikintu cyingenzi cyo gukoresha fenolike resin ni nkuguhuza.Ibisigarira bya fenolike birahinduka kandi birahujwe nubwoko butandukanye bwuzuza ibinyabuzima na organic organique.

Igipimo kinini cya karubone: Mugihe cya gaz inert hamwe nubushyuhe bwa 1000°C, ibisigarira bya fenolike bizatanga ibisigazwa byinshi bya karubone, bifasha mukubungabunga imiterere yimiterere ya fenolike.

Umwotsi muke hamwe nuburozi buke: Ugereranije nubundi buryo bwa resin, sisitemu ya fenolike resin ifite ibyiza byumwotsi muke nuburozi buke.Ku bijyanye no gutwikwa, sisitemu ya fenolike resin yakozwe na formulaire ya siyansi izabora buhoro buhoro kugirango itange hydrogène, hydrocarbone, imyuka y'amazi na okiside ya karubone.Umwotsi ukorwa mugihe cyo kubora ni muto, kandi uburozi buri hasi.

Kurwanya imiti: Fenolike ihujwe irashobora kwangirika kwangirika kwibintu byose byimiti.Nka lisansi, peteroli, inzoga, glycol, amavuta na hydrocarbone zitandukanye.

Kuvura ubushyuhe: Kuvura ubushyuhe bizongera ubushyuhe bwikirahure bwikirahure cyakize, gishobora kurushaho kunoza imiterere ya resin.

Ifuro.Ugereranije na polystirene ifuro, polyvinyl chloride ifuro, polyurethane ifuro nibindi bikoresho byiganje ku isoko hakiri kare, bifite imikorere idasanzwe muburyo bwo kubura umuriro.