Ukusetshenziswa kwe-Ultra-Short Carbon Fiber

Njengelungu elibalulekile lensimu yezinhlanganisela ezithuthukisiwe, i-fiber yekhabhoni emfushane kakhulu, enezakhiwo zayo ezihlukile, ivuse ukunakwa okubanzi emikhakheni eminingi yezimboni nezobuchwepheshe. Inikeza ikhambi elisha sha lokusebenza okuphezulu kwezinto zokwakha, futhi ukuqonda okujulile kobuchwepheshe bayo bokusetshenziswa kanye nezinqubo kubalulekile ukuze kuthuthukiswe izimboni ezihlobene.

Ama-micrograph e-electron emicu ye-carbon emfushane kakhulu

Ngokuvamile, ubude bemicu yekhabhoni emfushane kakhulu buphakathi kuka-0.1 - 5mm, kanti ubuningi bayo buphansi ku-1.7 - 2g / cm³. Njengoba inobunzima obuphansi buka-1.7 - 2.2g / cm³, amandla okuthamba angu-3000 - 7000MPa kanye ne-modulus yokunwebeka okungu-200 - 700GPa, lezi zakhiwo ezinhle kakhulu zemishini zakha isisekelo sokusetshenziswa kwayo ezakhiweni ezithwala imithwalo. Ngaphezu kwalokho, inokumelana okuhle kakhulu nokushisa okuphezulu, futhi ingamelana namazinga okushisa aphezulu angaphezu kuka-2000°C endaweni engena-oxidizing.

Ubuchwepheshe Bokusetshenziswa kanye Nenqubo Ye-Ultra-short Carbon Fiber Ensimini Yezindiza

Emkhakheni wezindiza, i-fiber yekhabhoni emfushane kakhulu isetshenziswa kakhulu ukuqinisai-resinizinhlanganisela ze-matrix. Isihluthulelo sobuchwepheshe ukwenza i-carbon fiber ihlakazeke ngokulinganayo ku-resin matrix. Isibonelo, ukwamukela ubuchwepheshe bokuhlakazeka kwe-ultrasonic kungaphula ngempumelelo isimo se-carbon fiber agglomeration, ukuze i-dispersion coefficient ifinyelele ngaphezu kwama-90%, okuqinisekisa ukuhambisana kwezakhiwo zezinto ezibonakalayo. Ngesikhathi esifanayo, ukusetshenziswa kobuchwepheshe bokwelashwa kwe-fiber surface, njengokusetshenziswa kwei-ejenti yokuxhumaukwelashwa, kungenzai-carbon fiberkanye namandla esibopho se-resin interface akhuphuke ngo-30% - 50%.

Ekwenziweni kwamaphiko ezindiza nezinye izingxenye zesakhiwo, kusetshenziswa inqubo yethangi lokucindezela elishisayo. Okokuqala, i-fiber yekhabhoni emfushane kakhulu kanye ne-resin kuxutshwe nesilinganiso esithile esenziwe nge-prepreg, kufakwe ethangini lokucindezela elishisayo. Bese kuyaphola futhi kubumbeke ekushiseni okungu-120 - 180°C kanye nokucindezela okungu-0.5 - 1.5MPa. Le nqubo ingakhipha ngempumelelo amabhamuza omoya ezintweni ezihlanganisiwe ukuqinisekisa ukujiya nokusebenza okuphezulu kwemikhiqizo.

Ubuchwepheshe kanye Nezinqubo Zokusetshenziswa Kwe-Ultra-Short Carbon Fiber Embonini Yezimoto

Uma kusetshenziswa i-carbon fiber emfushane kakhulu ezingxenyeni zezimoto, kugxilwe ekuthuthukiseni ukuhambisana kwayo nezinto eziyisisekelo. Ngokufaka izinto ezihambisanayo ezithile, ukunamathelana phakathi kwe-carbon fibers nezinto eziyisisekelo (isb.i-polypropylene, njll.) kungandiswa cishe ngo-40%. Ngesikhathi esifanayo, ukuze kuthuthukiswe ukusebenza kwayo ezindaweni eziyinkimbinkimbi zokucindezeleka, ubuchwepheshe bokuklama ukuqondiswa kwefayibha busetshenziswa ukulungisa isiqondiso sokuqondanisa ifayibha ngokuya ngesiqondiso sokucindezeleka engxenyeni.

Inqubo yokubumba ngomjovo ivame ukusetshenziswa ekwakhiweni kwezingxenye ezifana nama-hood ezimoto. Imicu yekhabhoni emfushane kakhulu ixutshwa nezinhlayiya zepulasitiki bese ifakwa emgodini wesikhunta ngokushisa okuphezulu kanye nokucindezela. Izinga lokushisa lomjovo ngokuvamile lingu-200 - 280 ℃, ingcindezi yomjovo ingu-50 - 150 MPa. Le nqubo ingafeza ukubumba okusheshayo kwezingxenye ezibunjwe ngendlela eyinkimbinkimbi, futhi ingaqinisekisa ukusatshalaliswa okufanayo kwemicu yekhabhoni emikhiqizweni.

Ubuchwepheshe kanye nenqubo yokusetshenziswa kwe-Ultra-short Carbon Fiber ensimini ye-elekthronikhi

Emkhakheni wokushabalalisa ukushisa nge-elekthronikhi, ukusetshenziswa kokushisa kwe-fiber ye-carbon short kakhulu kubalulekile. Ngokwenza ngcono izinga le-graphitization ye-fiber ye-carbon, ukushisa kwayo kungandiswa kube ngaphezu kuka-1000W/(mK). Okwamanje, ukuqinisekisa ukuthi ixhumana kahle nezingxenye ze-elekthronikhi, ubuchwepheshe be-surface metallization, njenge-chemical nickel plating, bunganciphisa ukumelana kobuso be-fiber ye-carbon ngaphezu kuka-80%.

Inqubo yokusansimbi yempuphu ingasetshenziswa ekwakhiweni kwama-heatsink e-CPU ekhompyutha. I-fiber yekhabhoni emfushane kakhulu ixutshwa nempuphu yensimbi (isb. i-powder yethusi) bese ishiswa ngaphansi kokushisa okuphezulu kanye nengcindezi. Izinga lokushisa lokushiswa ngokuvamile lingu-500 - 900°C kanti ingcindezi ingu-20 - 50 MPa. Le nqubo ivumela i-fiber yekhabhoni ukuthi yakhe isiteshi esihle sokuhambisa ukushisa ngensimbi futhi ithuthukise ukusebenza kahle kokushabalalisa ukushisa.

Kusukela ku-aerospace kuya embonini yezimoto kuya ku-electronics, ngokusungula ubuchwepheshe okuqhubekayo kanye nokwenza ngcono izinqubo, okufushane kakhului-carbon fiberkuzokhanya emikhakheni eminingi, kufake amandla anamandla kakhulu kwesayensi nobuchwepheshe besimanje kanye nentuthuko yezimboni.