Tšebeliso ea Ultra-Short Carbon Fiber

Joaloka setho se ka sehloohong sa tšimo e tsoetseng pele ea li-composite, fiber ea carbon e khutšoanyane ea ultra-short, e nang le thepa ea eona e ikhethang, e bakile tlhokomelo e atileng mafapheng a mangata a indasteri le a theknoloji. E fana ka tharollo e ncha bakeng sa ts'ebetso e phahameng ea lisebelisoa, 'me kutloisiso e tebileng ea mahlale a ts'ebeliso ea eona le lits'ebetso li bohlokoa ho tsamaisa nts'etsopele ea liindasteri tse amanang.

Li-micrograph tsa elektrone tsa li-ultrashort carbon fibers

Ka tloaelo, bolelele ba li-ultra-short fiber fibers li pakeng tsa 0.1 - 5mm, 'me boima ba tsona bo tlase ho 1.7 - 2g/cm³. Ka sekhahla se tlase sa 1.7 - 2.2g/cm³, matla a ho tsitsa a 3000 - 7000MPa le modulus ea elasticity ea 200 - 700GPa, lisebelisoa tsena tse ntle tsa mochini li theha motheo oa ts'ebeliso ea eona meahong e jereng mojaro. Ho feta moo, e na le khanyetso e ntle haholo ea mocheso o phahameng, 'me e khona ho mamella mocheso o fetang 2000 ° C sebakeng se se nang oxidizing.

Theknoloji ea Kopo le Ts'ebetso ea Ultra-short Carbon Fiber sebakeng sa Aerospace

Lefapheng la aerospace, fiber ea "ultra-short carbon" e sebelisoa haholo ho matlafatsaresinmetsoako ea matrix. Ntho ea bohlokoa ea theknoloji ke ho etsa hore carbon fiber e qhalane ka mokhoa o ts'oanang ka har'a matrix a resin. Ka mohlala, ho amohela theknoloji ea ho hasana ea ultrasonic ho ka senya ts'ebetso ea carbon fiber agglomeration, e le hore coefficient ea ho qhalakanngoa e fihle ho feta 90%, ho netefatsa hore thepa ea thepa e lumellana. Ka nako e ts'oanang, ts'ebeliso ea theknoloji ea kalafo ea fiber holim'a metsi, joalo ka ts'ebeliso eantho e kopanyangkalafo, ka etsa hore thecarbon fiber'me matla a bond ea resin a eketsehile ka 30% - 50%.

Ha ho etsoa mapheo a sefofane le likarolo tse ling tsa sebopeho, ts'ebeliso ea ts'ebetso ea tanka ea ho tobetsa e chesang. Pele ho tsohle, fiber e khuts'oane ea khabone le resin e kopantsoeng le karolo e itseng e entsoeng ka prepreg, e kentsoeng ka tanka ea khatiso e chesang. Ka mor'a moo, e phekoloa 'me e bōptjoa ka mocheso oa 120 - 180 ° C le khatello ea 0.5 - 1.5MPa. Ts'ebetso ena e ka ntša li-bubble tsa moea ka mokhoa o atlehileng linthong tse kopaneng ho etsa bonnete ba hore lihlahisoa li tenyetseha le ts'ebetso e phahameng ea lihlahisoa.

Theknoloji le Mekhoa ea Tšebeliso ea Ultra-Short Carbon Fiber ho Indasteri ea Likoloi

Ha o sebelisa ultra-short carbon fiber likarolong tsa likoloi, ho tsepamisitsoe maikutlo ho ntlafatsa ho lumellana ha eona le lisebelisoa tsa motheo. Ka ho kenyelletsa li-compatibilizers tse khethehileng, ho kopana ha sefahleho pakeng tsa likhoele tsa carbon le lisebelisoa tsa motheo (mohlala.polypropylene, joalo-joalo) e ka eketsoa ka hoo e ka bang 40%. Ka nako e ts'oanang, e le ho ntlafatsa ts'ebetso ea eona libakeng tse thata tsa khatello ea kelello, theknoloji ea moralo oa fiber orientation e sebelisoa ho lokisa tataiso ea ho tsamaisana ha fiber ho latela tataiso ea khatello ea maikutlo karolong.

Mokhoa oa ho bopa ente hangata o sebelisoa ha ho etsoa likarolo tse kang li-hoods tsa koloi. Li-ultra-short fiber fibers li kopantsoe le likaroloana tsa polasetiki ebe li kenngoa ka har'a hlobo ka mocheso o phahameng le khatello. Mocheso oa ente hangata ke 200 - 280 ℃, khatello ea ente ke 50 - 150 MPa. Ts'ebetso ena e ka lemoha ho bōptjoa ka potlako ha likarolo tse rarahaneng tse bōpehileng, 'me e ka netefatsa kabo e tšoanang ea likhoele tsa carbon lihlahisoa.

Theknoloji le Ts'ebetso ea Ts'ebeliso ea Carbon Fiber e khuts'oane haholo tšimong ea Electronics

Sebakeng sa ho senya mocheso oa elektronike, ho sebelisoa ha mocheso oa mocheso oa li-ultra-short carbon fibers ke senotlolo. Ka ho ntlafatsa tekanyo ea graphitization ea carbon fiber, conductivity ea eona ea mocheso e ka eketsoa ho feta 1000W/(mK). Ho sa le joalo, ho etsa bonnete ba ho kopana ha eona hantle le likarolo tsa elektroniki, theknoloji ea metallization ea holim'a metsi, joalo ka lik'hemik'hale tsa nickel plating, e ka fokotsa ho hanyetsa ha carbon fiber ka ho feta 80%.

Ts'ebetso ea metallurgy ea phofo e ka sebelisoa ha ho etsoa li-heatsink tsa komporo ea CPU. The Ultra-short carbon faeba e tsoakane le tšepe phofo (mohlala, koporo phofo) le sintered tlas'a mocheso o phahameng le khatello. Mocheso oa sintering hangata ke 500 - 900 ° C 'me khatello ke 20 - 50 MPa. Ts'ebetso ena e nolofalletsa carbon fiber ho theha mocha o motle oa ho tsamaisa mocheso ka tšepe le ho ntlafatsa katleho ea mocheso.

Ho tloha sebakeng sa sefofane ho ea indastering ea likoloi ho ea ho tsa elektroniki, ka ntlafatso e tsoelang pele ea theknoloji le ts'ebetso ea ts'ebetso, e khuts'oane haholo.carbon fibere tla khanya mafapheng a mangata, e kenya matla a matla haholoanyane bakeng sa saense ea morao-rao le theknoloji le nts'etsopele ea indasteri.