Kushandiswa kweUltra-Short Carbon Fiber

Senhengo yakakosha yenzvimbo yepamberi yecomposites, yekupedzisira-pfupi kabhoni fiber, ine yakasarudzika zvimiro, yakakonzera kutariswa kwakapararira muminda yakawanda yemaindasitiri uye tekinoroji. Inopa mhinduro nyowani yekushanda kwepamusoro kwezvinhu, uye kunzwisisa kwakadzama kwemashandisirwo ayo matekinoroji uye maitiro kwakakosha kufambisa kusimudzira kwemaindasitiri ane hukama.

Electron micrographs ye ultrashort kabhoni fibers

Kazhinji, kureba kwe-ultra-short kabhoni fibers iri pakati pe0.1 - 5mm, uye density yavo yakaderera pa1.7 - 2g/cm³. Iine density yakaderera ye1.7 - 2.2g/cm³, simba rekusimba re3000 - 7000MPa uye modulus yekunyungudika ye200 - 700GPa, aya akanakisa emakanika zvivakwa anoumba hwaro hwekushandiswa kwayo mukutakura mitoro. Pamusoro pezvo, ine yakanakisa tembiricha yekudzivirira, uye inokwanisa kutsungirira tembiricha yepamusoro inopfuura 2000 ° C mumhepo isiri-oxidizing.

Kushandisa Tekinoroji uye Maitiro eUltra-pfupi Carbon Fiber muAerospace Field

Mumunda we aerospace, Ultra-pfupi kabhoni fiber inonyanya kushandiswa kusimbisaresinmatrix composites. Kiyi yetekinoroji ndeyekuita iyo kabhoni fiber yakapararira muresin matrix. Semuenzaniso, kutora tekinoroji yekuparadzira tekinoroji inogona kunyatso kutyora chiitiko chekabhoni fiber agglomeration, kuitira kuti iyo yekuparadzira coefficient isvike kupfuura 90%, kuve nechokwadi chekuenderana kwezvinhu zvezvinhu. Panguva imwecheteyo, kushandiswa kwefiber surface treatment teknolojia, yakadai sekushandiswa kwecoupling agentkurapwa, inogona kuitacarbon fiberuye resin interface bond simba rakawedzera ne30% - 50%.

Mukugadzira mapapiro endege uye zvimwe zvimiro zvechimiro, kushandiswa kwekupisa kudzvanya tangi process. Chekutanga pane zvese, iyo yekupedzisira-pfupi kabhoni faibha uye resin yakasanganiswa neimwe chikamu chakagadzirwa prepreg, yakaturikidzana mukati inopisa tangi yekutsikisa. Inobva yaporeswa nekuumbwa patembiricha ye120 - 180°C uye kudzvanywa kwe0.5 - 1.5MPa. Iyi nzira inogona kunyatso kuburitsa mabhuru emhepo mune inoumbwa zvinhu kuti ive nechokwadi chehunyoro uye kushanda kwakanyanya kwezvigadzirwa.

Tekinoroji uye Matanho eKushandiswa kweUltra-Short Carbon Fiber muIndasitiri Yemotokari

Paunenge uchiisa iyo yekupedzisira-pfupi kabhoni fiber kune zvikamu zvemotokari, chinotariswa chiri pakuvandudza kuenderana kwayo nehwaro zvinhu. Nekuwedzera chaiwo anowirirana, iyo yemukati inonamira pakati pekabhoni fiber uye base zvinhu (semuenzaniso.polypropylene, etc.) inogona kuwedzerwa ne40%. Panguva imwecheteyo, kuitira kuti ivandudze kushanda kwayo mumamiriro ezvinhu akaoma, fiber orientation design teknolojia inoshandiswa kugadzirisa kutungamirirwa kwefiber alignment maererano nehutungamiri hwekushungurudzika pane chikamu.

Iyo jekiseni yekuumba maitiro inowanzo shandiswa mukugadzira zvikamu zvakaita semahodhi emota. Ultra-pfupi kabhoni fibers inosanganiswa nepurasitiki zvimedu zvobva zvapinzwa mugomba rekuumbwa kuburikidza nekushisa kwakanyanya uye kudzvanywa. Iyo tembiricha yejekiseni inowanzoita 200 - 280 ℃, iyo jekiseni pressure ndeye 50 - 150 MPa. Maitiro aya anogona kuona kukurumidza kuumbwa kweakaomesesa akaumbwa zvikamu, uye anogona kuve nechokwadi chekugoverwa kwakafanana kwekabhoni fiber mune zvigadzirwa.

Tekinoroji uye Maitiro eUltra-pfupi Carbon Fiber Kunyorera muElectroniki Munda

Mumunda wekupisa kupisa kwemagetsi, kushandiswa kwekupisa kwekushisa kwe-ultra-short carbon fibers kwakakosha. Nekugadzirisa iyo graphitization dhigirii yekabhoni fiber, iyo inopisa conductivity inogona kuwedzerwa kusvika kupfuura 1000W/(mK). Zvichakadaro, kuti ive nechokwadi chekubatana kwayo kwakanaka nemidziyo yemagetsi, tekinoroji yesimbi yepasi, senge kemikari nickel plating, inogona kuderedza kupikisa kwepamusoro kwekabhoni fiber neinopfuura 80%.

Powder metallurgy process inogona kushandiswa mukugadzira komputa CPU heatsinks. Iyo yekupedzisira-pfupi kabhoni faibha inosanganiswa nesimbi hupfu (eg mhangura hupfu) uye sintered pasi pekushisa kwakanyanya uye kumanikidzwa. Sintering tembiricha inowanzo 500 - 900 ° C uye kudzvanywa kuri 20 - 50 MPa. Iyi nzira inogonesa iyo kabhoni fiber kuumba yakanaka kupisa conduction chiteshi nesimbi uye inonatsiridza kupisa kwekupisa.

Kubva kuaerospace kuenda kuindasitiri yemotokari kuenda kumagetsi, nekuenderera mberi kwehunyanzvi hwetekinoroji uye maitiro ekugadzirisa, yekupedzisira-pfupi.carbon fiberichapenya mundima dzakawanda, ichibaya simba rakawanda resainzi yemazuva ano uye tekinoroji uye budiriro yemaindasitiri.