litaba

Matsatsi a seng makae a fetileng, moprofesa oa Univesithi ea Washington, Aniruddh Vashisth, o ile a hatisa pampiri koranteng ea machaba ea bolaoli ea Carbon, a bolela hore o atlehile ho hlahisa mofuta o mocha oa carbon fiber composite material.Ho fapana le CFRP ea setso, e ke keng ea lokisoa hang ha e senyehile, thepa e ncha e ka lokisoa khafetsa.

反复修复CFRP-1

Ha e ntse e boloka thepa ea mechine ea thepa ea setso, CFRP e ncha e eketsa molemo o mocha, ke hore, e ka lokisoa khafetsa tlas'a ketso ea mocheso.Mocheso o ka lokisa tšenyo leha e le efe ea mokhathala oa thepa, hape o ka sebelisoa ho senya thepa ha e hloka ho tsosolosoa qetellong ea potoloho ea tšebeletso.Kaha CFRP ea setso ha e khone ho sebelisoa hape, ho bohlokoa ho hlahisa thepa e ncha e ka sebelisoang hape kapa ea lokisoa ka ho sebelisa matla a futhumatsang kapa ho futhumatsa maqhubu a radio.
Moprofesa Vashisth o boletse hore mohloli oa mocheso o ka liehisa ka nako e sa lekanyetsoang ts'ebetso ea botsofali ea CFRP e ncha.Ha e le hantle, thepa ena e lokela ho bitsoa Carbon Fiber Reinforced Vitrimers (vCFRP, Carbon Fiber Reinforced Vitrimers).Glass polymer (Vitrimers) ke mofuta o mocha oa thepa ea polymer e kopanyang melemo ea thermoplastic le thermosetting plastics e qapiloeng ke rasaense oa Mofora Moprofesa Ludwik Leibler ka 2011. Vitrimers material e sebelisa mochine o matla oa phapanyetsano ea li-bond, o ka khonang ho fetola phapanyetsano ea lik'hemik'hale ka mokhoa o matla. ha ho futhumala, 'me ka nako e ts'oanang ho boloka mohaho o amanang le sefapano ka kakaretso, e le hore li-polymers tsa thermosetting li ka ipholisa le ho tsosolosoa joaloka li-polymers tsa thermoplastic.
Ka lehlakoreng le leng, lintho tse atisang ho bitsoa carbon fiber composite ke lisebelisoa tsa carbon fiber reinforced resin matrix composite (CFRP), tse ka aroloa ka mefuta e 'meli: thermoset kapa thermoplastic ho ea ka sebopeho se fapaneng sa resin.Thermosetting composite thepa hangata e na le epoxy resin, litlamo tsa lik'hemik'hale tseo ho tsona li ka kopanyang thepa ka ho sa feleng 'meleng o le mong.Li-composites tsa thermoplastic li na le li-resin tse batlang li le bonolo tsa thermoplastic tse ka qhibilihang le ho nchafatsoa, ​​​​empa sena se tla ama matla le ho satalla ha thepa.
Litlamo tsa lik'hemik'hale ho vCFRP li ka hokahanngoa, tsa khaoloa, 'me tsa hokelloa hape ho fumana "bohare bo bohareng" lipakeng tsa thermoset le thepa ea thermoplastic.Bafuputsi ba morero ba lumela hore Vitrimers e ka fetoha sebaka sa li-resin tsa thermosetting le ho qoba ho bokelloa ha li-composites tsa thermosetting ka har'a lithōle.Bafuputsi ba lumela hore vCFRP e tla fetoha phetoho e kholo ho tloha ho thepa ea setso ho ea ho lisebelisoa tse matla, 'me e tla ba le letoto la litlamorao ho latela litšenyehelo tse felletseng tsa potoloho ea bophelo, ts'epahalo, polokeho le tlhokomelo.
反复修复CFRP-2
Hajoale, li-blade tsa turbine tsa moea ke se seng sa libaka tseo tšebeliso ea CFRP e leng kholo, 'me ho hlaphoheloa ha li-blades esale e le bothata tšimong ena.Ka mor'a ho fela ha nako ea tšebeletso, li-blades tse likete tse tlohetseng mosebetsi li ile tsa lahleloa sebakeng sa polokelo ea mobu ka mokhoa oa ho lahlela mobu, e leng se ileng sa baka tšusumetso e kholo tikolohong.
Haeba vCFRP e ka sebelisoa bakeng sa tlhahiso ea lehare, e ka sebelisoa hape 'me ea sebelisoa hape ka ho futhumatsa habonolo.Esita le haeba lehare le hloekisitsoeng le ke ke la lokisoa le ho sebelisoa hape, bonyane le ka bola ke mocheso.Thepa e ncha e fetola potoloho ea bophelo ea li-composites tsa thermoset hore e be potoloho ea bophelo ba cyclic, e tla ba mohato o moholo oa nts'etsopele ea moshoelella.

Nako ea poso: Nov-09-2021