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Ngwa nke Ultra-Short Carbon Fiber

Dị ka onye bụ isi n'ime mpaghara ihe mgbagwoju anya dị elu, eriri carbon ultra-short, yana akụrụngwa ya pụrụ iche, kpalitere nlebara anya zuru ebe niile n'ọtụtụ mpaghara mmepụta ihe na teknụzụ. Ọ na-enye ihe ngwọta ọhụrụ maka ịrụ ọrụ dị elu nke ihe, yana nghọta miri emi nke teknụzụ ngwa ya na usoro ya dị mkpa iji kwalite mmepe nke ụlọ ọrụ ndị metụtara ya.

Electron micrographs nke ultrashort carbon fibers

Electron micrographs nke ultrashort carbon fibers

Dịka, ogologo eriri carbon dị mkpụmkpụ dị n'etiti 0.1 - 5mm, njupụta ha dịkwa ala na 1.7 - 2g/cm³. Site na njupụta dị ala nke 1.7 - 2.2g / cm³, ike ịgbatị nke 3000 - 7000MPa yana mgbanwe nke 200 - 700GPa, ihe ndị a dị mma na-arụ ọrụ na-etolite ntọala maka iji ya na akụrụngwa na-ebu ibu. Tụkwasị na nke ahụ, ọ nwere ezigbo nguzogide okpomọkụ dị elu, ọ pụkwara iguzogide okpomọkụ dị elu karịa 2000 Celsius na ikuku na-adịghị oxidizing.

Nkà na ụzụ ngwa na usoro nke Ultra-short Carbon Fiber na Aerospace Field

N'ime ikuku ikuku, eriri carbon ultra-short na-ejikarị eme ka ikeresinihe mejupụtara matrix. Igodo nke teknụzụ bụ ime ka eriri carbon gbasasịa nke ọma na matriks resin. Dịka ọmụmaatụ, ịnakwere teknụzụ mgbasa ozi ultrasonic nwere ike imebi ihe ngosi nke carbon fiber agglomeration nke ọma, nke mere na ọnụọgụ mgbasa ozi ruru ihe karịrị 90%, na-eme ka nkwụsi ike nke ihe onwunwe. N'otu oge ahụ, ojiji nke eriri elu ọgwụgwọ technology, dị ka ojiji nkenjikọ njikọọgwụgwọ, nwere ike ime kaeriri carbonna resin interface njikọ ike mụbara site 30% - 50%.

Na mmepụta nke nku ụgbọ elu na ihe ndị ọzọ na-emepụta ihe, iji usoro ikpo ọkụ na-ekpo ọkụ. Nke mbụ, ultra-short carbon fiber na resin gwakọtara ya na akụkụ ụfọdụ nke prepreg, tinye n'ime tankị ọkụ ọkụ. Mgbe ahụ, a na-agwọ ya ma kpụzie ya na okpomọkụ nke 120 - 180 Celsius C na nrụgide 0.5 - 1.5MPa. Usoro a nwere ike ịgbapụta ikuku ikuku nke ọma na ihe mejupụtara iji hụ na njupụta na arụmọrụ dị elu nke ngwaahịa.

Nkà na ụzụ na usoro maka ngwa nke Ultra-Short Carbon Fiber n'ime ụlọ ọrụ akpaaka

Mgbe ị na-etinye eriri carbon dị mkpụmkpụ na akụkụ ụgbọ ala, ihe a na-elekwasị anya bụ imeziwanye ndakọrịta ya na ihe ndabere. Site n'ịgbakwụnye ihe ndị na-emekọrịta ihe, njikọ ihu n'etiti eriri carbon na ihe ndị dị ala (dịka ọmụmaatụpolypropylene, wdg) nwere ike ịbawanye ihe dịka 40%. N'otu oge ahụ, iji meziwanye arụmọrụ ya na gburugburu nrụgide mgbagwoju anya, a na-eji nkà na ụzụ nhazi nke fiber orientation emezigharị ntụziaka nke eriri eriri dịka ntụziaka nke nrụgide dị na akụkụ ahụ.

A na-ejikarị usoro ịkpụzi injection na-emepụta akụkụ dịka mkpuchi ụgbọ ala. A na-agwakọta eriri carbon dị mkpụmkpụ dị mkpụmkpụ na irighiri rọba wee gbanye ya n'ime oghere ebu site na oke okpomọkụ na nrụgide. The injection okpomọkụ bụ n'ozuzu 200 - 280 ℃, injection mgbali bụ 50 - 150 MPa. Usoro a nwere ike na-aghọta ngwa ngwa ịkpụzi nke mgbagwoju ekara akụkụ, na ike hụ na edo nkesa nke carbon eriri na ngwaahịa.

Nkà na ụzụ na usoro nke Ultra-short Carbon Fiber Application in Electronics Field

N'ihe gbasara ikposa ọkụ eletrọnịkị, ojiji nke thermal conductivity nke eriri carbon dị mkpụmkpụ bụ isi. Site n'ịkwalite ogo graphitization nke eriri carbon, enwere ike ịbawanye arụmọrụ ọkụ ya karịa 1000W/(mK). Ka ọ dị ugbu a, iji hụ na kọntaktị ya dị mma na ngwa elektrọn, teknụzụ nrụpụta elu, dị ka nickel plating, nwere ike belata nguzogide elu nke eriri carbon karịa 80%.

CPU

Enwere ike iji usoro nchara ntụ ntụ mee ihe n'ịmepụta heatsinks CPU kọmputa. A na-agwakọta eriri carbon dị mkpụmkpụ na ntụ ntụ (dịka ntụ ntụ ọla kọpa) ma tinye ya n'okpuru nnukwu okpomọkụ na nrụgide. The sintering okpomọkụ bụ n'ozuzu 500 - 900 Celsius C na nrụgide bụ 20 - 50 MPa. Usoro a na-enyere eriri carbon aka ịmepụta ọwa ikpo ọkụ dị mma na ígwè ma mee ka ọkụ ọkụ na-ekpo ọkụ na-arụ ọrụ.

Site na ikuku ikuku gaa na ụlọ ọrụ ụgbọ ala gaa na elektrọnịkị, yana teknụzụ teknụzụ na-aga n'ihu na njikarịcha usoro, ultra-shorteriri carbonga-enwu n'ọtụtụ ebe, na-agbanye ike dị ike maka sayensị na nkà na ụzụ ọgbara ọhụrụ na mmepe mmepụta ihe.

 

Oge nzipu: Dec-20-2024