Filastik suna nufin kayan da farko sun ƙunshi resins (ko monomers polymerized kai tsaye yayin sarrafawa), waɗanda aka ƙara su da ƙari kamar su filastik, filaye, mai mai, da masu canza launin, waɗanda za a iya ƙera su zuwa siffa yayin sarrafawa.
Babban Halayen Filastik:
① Yawancin robobi suna da nauyi kuma suna da ƙarfi, juriya ga lalata.
② Kyakkyawan juriya mai tasiri.
③ Kyakkyawan nuna gaskiya da juriya.
④ Insulating Properties tare da low thermal watsin.
⑤ Gabaɗaya mai sauƙin ƙirƙira, launi, da tsari a farashi mai sauƙi.
⑥ Yawancin robobi suna da ƙarancin juriya na zafi, haɓakar zafi mai girma, kuma suna da ƙonewa.
⑦ Rashin kwanciyar hankali, mai saurin lalacewa.
⑧ Yawancin robobi suna nuna ƙarancin ƙarancin zafin jiki, suna zama mara ƙarfi a cikin yanayin sanyi.
⑨ Mai saurin tsufa.
⑩ Wasu robobi suna narkar da su cikin sauƙi a cikin abubuwan kaushi.
Fenolic resinsAna amfani da su sosai a aikace-aikacen FRP (Fiber-Reinforced Plastic) da ke buƙatar kaddarorin FST (Wuta, Hayaki, da Guba). Duk da wasu ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun abubuwa (musamman ɓarna), resin phenolic ya kasance babban nau'in resin kasuwanci, tare da samar da kusan tan miliyan 6 na duniya kowace shekara. Phenolic resins suna ba da kyakkyawan yanayin kwanciyar hankali da juriya na sinadarai, suna kiyaye kwanciyar hankali a cikin kewayon zafin jiki na 150-180 ° C. Waɗannan kaddarorin, haɗe tare da fa'idar aikinsu na farashi, suna haifar da ci gaba da amfani da su a samfuran FRP. Aikace-aikace na yau da kullun sun haɗa da abubuwan ciki na jirgin sama, masu jigilar kaya, kayan cikin motar dogo, dandali da bututun mai, kayan rami, kayan gogayya, rufin bututun roka, da sauran samfuran da suka danganci FST.
Nau'o'in Abubuwan Ƙarfafan Fiber-Fenolic Composites
Haɗin phenolic mai ƙarfafa fibersun haɗa da kayan da aka inganta tare da yankakken zaruruwa, yadudduka, da ci gaba da zaruruwa. Yanke zaruruwa na farko (misali, itace, cellulose) har yanzu ana amfani da su a cikin mahaɗan gyare-gyaren phenolic don aikace-aikace daban-daban, musamman sassan mota kamar murfin famfo na ruwa da abubuwan haɗin gwiwa. Abubuwan gyare-gyaren phenolic na zamani sun haɗa da filayen gilashi, filayen ƙarfe, ko kuma kwanan nan, filayen carbon. Abubuwan resin phenolic da ake amfani da su a cikin mahaɗan gyare-gyare sune resin novolac, waɗanda aka warkar da su tare da hexamethylenetetramine.
Ana amfani da kayan masana'anta da aka riga aka yi ciki a aikace-aikace daban-daban, kamar RTM (Resin Transfer Molding), tsarin sanwicin saƙar zuma, kariyar ballistic, fatunan ciki na jirgin sama, da jigilar kaya. Ana samun samfuran ci gaba da ƙarfafa fiber ta hanyar iska ta filament ko pultrusion. Fabric da ci gabafiber-reinforced compositesyawanci amfani da ruwa- ko sauran ƙarfi-soluble resole resole phenolic resins. Bayan resole phenolics, sauran tsarin phenolic masu alaƙa-kamar benzoxazines, cyanate esters, da sabbin resin Calidur™—ana kuma yi aiki a cikin FRP.
Benzoxazine sabon nau'in guduro ne na phenolic. Ba kamar phenolics na al'ada ba, inda aka haɗa sassan kwayoyin ta hanyar gadoji na methylene [-CH₂-], benzoxazines suna samar da tsarin cyclic. Benzoxazines ana samun sauƙin haɗa su daga kayan phenolic (bisphenol ko novolac), amines na farko, da formaldehyde. Polymerization na buɗe zoben su ba ya haifar da wani samfuri ko maras amfani, yana haɓaka daidaiton girman samfur na ƙarshe. Bugu da ƙari ga zafi mai zafi da juriya na harshen wuta, resins benzoxazine suna nuna kaddarorin da ba a cikin phenolics na al'ada, kamar ƙarancin shayar da danshi da kuma ingantaccen aikin dielectric.
Calidur ™ ƙarni ne na gaba, kashi ɗaya, ɗaki-zazzabi-tsayayyen polyarylether amide thermosetting resin wanda Evonik Degussa ya haɓaka don masana'antar sararin samaniya da lantarki. Wannan resin yana warkewa a 140 ° C a cikin sa'o'i 2, tare da yanayin canjin gilashin (Tg) na 195 ° C. A halin yanzu, Calidur ™ yana nuna fa'idodi da yawa don haɗakar ayyuka masu girma: babu hayaki mai canzawa, ƙarancin ƙarancin yanayi da raguwa yayin warkewa, ƙarfin zafi mai ƙarfi da rigar, babban matsi mai ƙarfi da ƙarfi, da kyakkyawan ƙarfi. Wannan ingantaccen guduro yana aiki azaman madadin farashi mai tsada zuwa tsakiyar-zuwa-high-Tg epoxy, bismaleimide, da resins cyanate ester a cikin sararin samaniya, sufuri, mota, lantarki/lantarki, da sauran aikace-aikace masu buƙata.
Lokacin aikawa: Juni-24-2025
