Ukusetyenziswa kwe-Ultra-Short Carbon Fiber

Njengelungu eliphambili lecandelo eliphambili le-composites, i-ultra-short carbon fiber, eneempawu zayo ezizodwa, iye yabangela ukuqwalaselwa ngokubanzi kwiinkalo ezininzi zoshishino kunye nezobuchwepheshe. Ibonelela ngesisombululo esitsha kraca sokusebenza okuphezulu kwezinto, kunye nokuqonda okunzulu kobuchwephesha besicelo kunye neenkqubo kubalulekile ukuqhuba uphuhliso lwamashishini anxulumeneyo.

I-electron micrographs ye-ultrashort carbon fibers

Ngokuqhelekileyo, ubude be-ultra-short carbon fibers buphakathi kwe-0.1 - 5mm, kwaye ubuninzi babo buphantsi kwi-1.7 - 2g / cm³. Ngoxinano oluphantsi lwe-1.7 - 2.2g/cm³, amandla okuqina angama-3000 - 7000MPa kunye nemodyuli ye-elasticity ye-200 - 700GPa, ezi mpawu zibalaseleyo zomatshini zenza isiseko sokusetyenziswa kwayo kwizakhiwo zokuthwala umthwalo. Ukongeza, inokumelana nobushushu obuphezulu, kwaye inokumelana namaqondo obushushu angaphezu kwama-2000 ° C kwindawo engeyiyo i-oxidizing.

Itekhnoloji yesicelo kunye neNkqubo ye-Ultra-short Carbon Fiber kwi-Aerospace Field

Kwintsimi ye-aerospace, i-ultra-short fiber fiber isetyenziselwa ukuqinisaintlakaimidibaniso ye matrix. Isitshixo setekhnoloji kukwenza i-carbon fiber ihlakazwe ngokulinganayo kwi-resin matrix. Ngokomzekelo, ukwamkela iteknoloji ye-ultrasonic dispersion ingakwazi ukuphula ngokufanelekileyo i-carbon fiber agglomeration, ukwenzela ukuba i-coefficient ye-dispersion ifike ngaphezu kwe-90%, iqinisekisa ukuhambelana kwezinto eziphathekayo. Ngexesha elifanayo, ukusetyenziswa kweteknoloji yonyango lwefiber surface, njengokusetyenziswa kwei-arhente yokudibanisaunyango, ungenza icarbon fiberkunye ne-resin interface bond amandla anyuke ngama-30% - 50%.

Ukwenziwa kwamaphiko eenqwelo-moya kunye nezinye iinxalenye zesakhiwo, ukusetyenziswa kwenkqubo yokucofa okushushu. Okokuqala, i-ultra-short carbon fiber kunye ne-resin exutywe nenxalenye ethile eyenziwe nge-prepreg, efakwe kwitanki yokushicilela eshushu. Emva koko iyaphiliswa kwaye ibunjwe kwiqondo lokushisa lika-120 - 180 ° C kunye noxinzelelo lwe-0.5 - 1.5MPa. Le nkqubo inokukhupha ngokufanelekileyo amaqamza omoya kwizinto ezidibeneyo zokuqinisekisa ukuxinana kunye nokusebenza okuphezulu kweemveliso.

Itekhnoloji kunye neeNkqubo zokuSebenzisa i-Ultra-Short Carbon Fiber kwi-Automotive Industry

Xa usebenzisa i-ultra-short carbon fiber kwiindawo zeemoto, kugxininiswa ekuphuculeni ukuhambelana kwayo kunye nesiseko sezinto. Ngokongeza ii-compatibilizers ezithile, ukunamathela kobuso phakathi kweefiber zekhabhoni kunye nesiseko sezinto (umz.polypropylene, njl.) inokunyuswa malunga ne-40%. Ngexesha elifanayo, ukwenzela ukuba kuphuculwe ukusebenza kwayo kwiindawo ezixinzelelekileyo ezixinzelelekileyo, iteknoloji yoyilo lwe-fiber orientation isetyenziselwa ukulungelelanisa ulwalathiso lokulungelelaniswa kwefiber ngokwendlela yoxinzelelo kwinxalenye.

Inkqubo yokubumba inaliti isoloko isetyenziswa xa kusenziwa iindawo ezinje ngee hood zemoto. I-Ultra-short carbon fibers ixutywe kunye namasuntswana eplastiki kwaye emva koko ifakwe kwi-mold cavity ngokusebenzisa ubushushu obuphezulu kunye noxinzelelo. Ubushushu benaliti ngama-200 – 280 ℃, uxinzelelo lwenaliti yi-50 – 150 MPa. Le nkqubo inokuqonda ukubunjwa okukhawulezayo kweengxenye ezibunjiweyo eziyinkimbinkimbi, kwaye inokuqinisekisa ukuhanjiswa okufanayo kweefayili zekhabhoni kwiimveliso.

Itekhnoloji kunye neNkqubo ye-Ultra-short-short Carbon Fiber Application kwi-Electronics Field

Kwintsimi yokutshatyalaliswa kobushushu be-elektroniki, ukusetyenziswa kwe-thermal conductivity ye-ultra-short carbon fibers kubalulekile. Ngokulungisa idigri ye-graphitization ye-carbon fiber, i-thermal conductivity yayo inokunyuswa ibe ngaphezu kwe-1000W / (mK). Okwangoku, ukuqinisekisa ukunxibelelana kwayo okuhle namacandelo e-elektroniki, itekhnoloji ye-metalization yomhlaba, efana ne-chemical nickel plating, inokunciphisa ukumelana nomphezulu we-carbon fiber ngaphezu kwe-80%.

Inkqubo yesinyithi yomgubo ingasetyenziselwa ukwenziwa kweeheatsinks zeCPU zekhompyuter. I-ultra-short carbon fiber ixutywe nomgubo wentsimbi (umzekelo, umgubo wobhedu) kwaye ifakwe kwi-sintered phantsi kobushushu obuphezulu kunye noxinzelelo. Ubushushu be-sintering ngokuqhelekileyo yi-500 - 900 ° C kwaye uxinzelelo luyi-20 - 50 MPa. Le nkqubo yenza ukuba i-carbon fiber yenze i-channel conduction yokushisa kakuhle kunye nesinyithi kwaye iphucule ukusebenza kakuhle kokutshatyalaliswa kobushushu.

Ukusuka kwi-aerospace ukuya kwishishini leemoto ukuya kwi-elektroniki, kunye nokwenziwa ngokutsha kwetekhnoloji kunye nokuphucula inkqubo, i-ultra-short.carbon fiberiya kuqaqamba kwiinkalo ezininzi, ifakela amandla angakumbi kwinzululwazi yale mihla nobugcisa kunye nophuhliso lwemizi-mveliso.