Munguva yanhasi yekukurumidza kusimukira kwetekinoroji, kabhoni fiber composites iri kuzviitira zita munzvimbo dzakasiyana siyana nekuda kwekuita kwavo kwepamusoro. Kubva pakushandiswa kwepamusoro-soro mumhepo kusvika kune zvinodiwa zvezuva nezuva zvezvinhu zvemitambo, kabhoni fiber composites yakaratidza kugona kukuru. Nekudaro, kugadzirira yakakwira-inoshanda kabhoni fiber composites, activation kurapwa kwecarbon fibersidanho rinokosha.
Carbon fiber pamusoro erekitironi maikorosikopu mufananidzo
Carbon fiber, iyo yepamusoro-inoshanda fiber zvinhu, ine zvakawanda zvinogombedzera zvimiro. Iyo inonyanya kuumbwa nekabhoni uye ine elongated filamentary chimiro. Kubva pakuona kwechimiro chepamusoro, pamusoro pekabhoni fiber inenge yakatsetseka uye ine mapoka mashoma anoshanda anoshanda. Izvi zvinokonzerwa nekuti panguva yekugadzirira kwekabhoni fibers, high-temperature carbonization uye mamwe marapirwo anoita kuti pamusoro pekabhoni fibers ive nehumwe inert state. Ichi chivakwa chepamusoro chinounza nhevedzano yezvinetso pakugadzirira kwekabhoni fiber composites.
Iyo yakatsetseka inoita kuti chisungo chiri pakati pekabhoni faibha uye matrix zvinhu zvishaye simba. Mukugadzirira kwecomposites, zvakaoma kuti matrix zvinhu zvigadzire chisungo chakasimba pamusoro pecarbon fiber, iyo inokanganisa kushanda kwese kwezvinhu zvakasanganiswa. Kechipiri, kushomeka kweanoshanda anoshanda mapoka anodzikamisa maitiro emakemikari pakati pekabhoni fiber uye matrix zvinhu. Izvi zvinoita kuti kubatana kwemukati pakati pezviviri izvi kunyanyovimba nemhedzisiro yemuviri, senge mechanical embedding, zvichingodaro, izvo kazhinji zvisina kugadzikana zvakakwana uye zvinowanzoita kupatsanurwa kana zvichiiswa kune ekunze masimba.
Schematic diagraph ye interlayer kusimbiswa kwekabhoni fiber jira nekabhoni nanotubes
Kuti ugadzirise matambudziko aya, activation kurapwa kwekabhoni fibers inove yakakosha. Activatedcarbon fibersratidza shanduko huru muzvikamu zvakawanda.
Activation kurapwa kunowedzera kushata kwepamusoro kwekabhoni fibers. Kuburikidza nekemikari oxidation, kurapwa kweplasma nedzimwe nzira, makomba madiki nemagirovha anogona kuroverwa pamusoro pekabhoni fibers, zvichiita kuti pamusoro payo hwushanye. Iyi nzvimbo yakaoma inowedzera nzvimbo yekubatana pakati pekabhoni fiber uye substrate zvinhu, izvo zvinovandudza chisungo chemuchina pakati pezviviri. Kana iyo matrix zvinhu zvakasungirirwa kune kabhoni fiber, zvirinani kukwanisa kuzvimisikidza mukati mezvimiro zvakakasharara, zvichigadzira chisungo chakasimba.
Iyo activation kurapwa inogona kuunza kuwanda kweanoshanda anoshanda mapoka pamusoro peiyo kabhoni fiber. Aya mapoka anoshanda anogona kuita zvemakemikari nemapoka anoshanda anoenderana mune matrix zvinhu kuti aumbe makemikari bond. Semuenzaniso, kurapwa kweoxidation kunogona kuunza mapoka ehydroxyl, mapoka ecarboxyl uye mamwe mapoka anoshanda pamusoro pekabhoni fibers, anogona kuita neepoxymapoka mune resin matrix uye zvichingodaro kugadzira covalent zvisungo. Kusimba kweichi chemikemikari chisungo chakakwira zvakanyanya kupfuura icho chekubatana kwemuviri, iyo inovandudza zvakanyanya iyo interfacial bonding simba pakati pekabhoni fiber uye matrix zvinhu.
Simba repamusoro reiyo activated carbon fiber rinowedzerawo zvakanyanya. Kuwedzera kwesimba repamusoro kunoita kuti zvive nyore kuti kabhoni fiber inyorovedzwe nezvinhu zvematrix, nokudaro kufambisa kupararira uye kupinda mukati meiyo matrix zvinhu pamusoro peiyo carbon fiber. Mukugadzira macomposites, iyo matrix zvinhu zvinogona kugovaniswa zvakaenzana kutenderedza kabhoni fibers kuti iite yakawedzera kusimba chimiro. Izvi hazvisi kungovandudza maitiro emagetsi ezvinyorwa zvinosanganiswa, asi zvakare inovandudza mamwe maitiro ayo, akadai sekudzivirira kwehutu uye kugadzikana kwekushisa.
Activated carbon fibers ane akawanda mabhenefiti ekugadzirira kwekabhoni fiber composites.
Panyaya yema mechanical properties, iyo interfacial bonding simba pakati peyakagadzirwacarbon fibersuye iyo matrix zvinhu inovandudzwa zvakanyanya, izvo zvinoita kuti macomposites aite zvirinani kutamisa kushushikana kana achiiswa kune ekunze masimba. Izvi zvinoreva kuti ma mechanic properties emakombisi akadai sesimba uye modulus anovandudzwa zvakanyanya. Semuyenzaniso, mumunda wemuchadenga, izvo zvinoda zvakanyanya kukwirisa zvivakwa, zvikamu zvendege zvakagadzirwa neakabatidzwa kabhoni fiber composites zvinokwanisa kumira mitoro mikuru yekubhururuka nekuvandudza kuchengetedzwa uye kuvimbika kwendege. Mumunda wemidziyo yemitambo, senge mafuremu emabhasikoro, makirabhu egorofu, nezvimwewo, akabatidzwa kabhoni fiber composites anogona kupa simba riri nani uye kuomarara, uku ichideredza huremu nekuvandudza ruzivo rwevatambi.
Panyaya yekushorwa kwekuora, nekuda kwekuiswa kweanoshanda anoshanda mapoka pamusoro peiyo activated kabhoni fibers, aya mapoka anoshanda anogona kuumba yakagadzikana makemikari bonding ne matrix zvinhu, nekudaro kuvandudza kushorwa kweanosanganiswa. Mune mamwe mamiriro akashata ezvakatipoteredza, senge nharaunda yegungwa, indasitiri yemakemikari, nezvimwe, iyo yakagadziriswacarbon fiber compositesinogona kuramba zvirinani kukukurwa kwezvinosvibisa media uye kuwedzera hupenyu hwesevhisi. Izvi zvakakosha zvikuru kune zvimwe zvishandiso uye zvimiro zvinoshandiswa munzvimbo dzakaoma kwenguva yakareba.
Panyaya yekugadzikana kwekupisa, yakanaka yepakati chisungo chisungo pakati peyakagadzirwa kabhoni fiber uye matrix zvinhu zvinogona kuvandudza kugadzikana kwekupisa kweanosanganisa. Pasi pemamiriro ekunze ekupisa, macomposites anogona kuchengetedza zvirinani zvemuchina uye kugadzikana kwedimensional, uye haanyanye kukonzeresa deformation uye kukuvara. Izvi zvinoita kuti iyo yakashongedzwa kabhoni fiber kompositi ive neyakakura tarisiro yekushandisa mune yakakwirira-tembiricha maapplication, senge mota injini zvikamu uye aviation injini inopisa kupera zvikamu.
Panyaya yekushanda kwekugadzirisa, iyo activated kabhoni fibers yakawedzera basa repamusoro uye kuenderana kuri nani neiyo matrix zvinhu. Izvi zvinoita kuti zvive nyore kuti matrix zvinhu zvipinze uye kurapa pamusoro pekabhoni fiber panguva yekugadzirira kweiyo inoumbwa zvinhu, nekudaro kuvandudza kugona kwekugadzirisa uye kunaka kwechigadzirwa. Panguva imwecheteyo, kuumbwa kweiyo activated carbon fiber composites inowedzerwawo, ichivabvumira kuti vagadziriswe kune akasiyana maapplication uye kusangana neakasiyana einjiniya einjiniya zvinodiwa.
Naizvozvo, activation kurapwa kwecarbon fiberschinhu chakakosha chekubatanidza mukugadzirira kwepamusoro-kushanda kabhoni fiber composites. Kuburikidza neiyo activation kurapwa, chimiro chepamusoro chekabhoni fiber chinogona kuvandudzwa kuti chiwedzere kushata kwepamusoro, kuunza mapoka anoshanda anoshanda, uye kuvandudza simba repamusoro, kuitira kuvandudza kusimba kwekubatana pakati pekabhoni fiber uye matrix zvinhu, nekuisa hwaro. yekugadzirira kwekabhoni fiber composites ine yakanakisa mechanical zvivakwa, corrosion resistance, thermal stability and processing performance. Nekuenderera mberi nekuenderera mberi kwesainzi uye tekinoroji, zvinotendwa kuti kabhoni fiber activation tekinoroji icharamba ichivandudza nekusimudzira, ichipa rutsigiro rwakasimba rwekushandiswa kwakakura kwekabhoni fiber composites.
Shanghai Orisen New Material Technology Co., Ltd
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Email: grahamjin@jhcomposites.com
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Nguva yekutumira: Sep-04-2024