Munguva ino yekufambira mberi kwehunyanzvi nekukurumidza, zvinhu zvakagadzirwa nekabhoni fiber zviri kuzviwanira mukurumbira munzvimbo dzakasiyana-siyana nekuda kwekushanda kwazvo kwepamusoro. Kubva pakushandiswa kwepamusoro-soro mundege kusvika kune zvinodiwa zvezuva nezuva zvezvinhu zvemitambo, zvinhu zvakagadzirwa nekabhoni fiber zvakaratidza kugona kukuru. Zvisinei, kugadzirira zvinhu zvakagadzirwa nekabhoni fiber zvinobudirira, kurapwa kwekushanda kwefirita dzekabhoniidanho rakakosha.
Mufananidzo wemaelektroni epamusoro pekabhoni fiber
Kabhoni fiber, iyo inogadzira fiber inoshanda zvakanyanya, ine zvinhu zvakawanda zvinokwezva. Inonyanya kuumbwa nekabhoni uye ine chimiro chakareba chefilamentary. Kubva pakuona kwechimiro chepamusoro, pamusoro pefilakisi yekabhoni yakapfava uye ine mapoka mashoma anoshanda. Izvi zvinokonzerwa nekuti panguva yekugadzirira kabhoni fibers, carbonization inodziya zvakanyanya uye mamwe marapirwo anoita kuti pamusoro pefilakisi yekabhoni pave nemamiriro asina kusimba. Hunhu uhwu hwepamusoro hunounza matambudziko akawanda pakugadzirira kabhoni fiber composites.
Nzvimbo yakatsetseka inoita kuti chisungo pakati pekabhoni fiber nezvinhu zvematrix chisashande zvakanaka. Pakugadzirira zvinhu zvinosanganisa matrix, zvinonetsa kuti zvinhu zvematrix zvigadzire chisungo chakasimba pamusoro pechinhu ichi.kabhoni faibha, izvo zvinokanganisa mashandiro ese echinhu chakasanganiswa. Chechipiri, kushaikwa kwemapoka anoshanda anodzivirira maitiro emakemikari pakati pemafiber ekabhoni nezvinhu zvematrix. Izvi zvinoita kuti kubatana kwepakati pezvinhu zviviri izvi kunonyanya kutsamira pamhedzisiro yemuviri, senge mechanical embedding, nezvimwewo, izvo kazhinji zvisina kugadzikana zvakakwana uye zvinowanzo patsanurwa kana zvichishandiswa nesimba rekunze.
Dhirowamu yemufananidzo wekusimbiswa kwejira re carbon fiber kuburikidza nemachubhu e carbon nanotubes
Kuti matambudziko aya agadziriswe, kurapwa kwe carbon fibers kunodiwa.firita dzekabhonikuratidza shanduko huru mumativi akati wandei.
Kurapa kwekushanda kunowedzera kuomarara kwepamusoro pemafiber ekabhoni. Kuburikidza nemakemikari, kurapwa kweplasma nedzimwe nzira, makomba madiki nemakomba zvinogona kucherwa pamusoro pemafiber ekabhoni, zvichiita kuti pamusoro payo pave pakaomarara. Nzvimbo iyi yakaoma inowedzera nzvimbo yekubatana pakati pefiber ekabhoni nezvinhu zviri pasi pevhu, izvo zvinovandudza kubatana kwemuchina pakati pezviviri. Kana matrix zvinhu zvakabatana nefiber ekabhoni, zvinokwanisa kuzvipinza zviri nani muzvivakwa izvi zvakaomarara, zvichigadzira chisungo chakasimba.
Kurapa kwe activation kunogona kuunza akawanda mapoka anoshanda pamusoro pe carbon fiber. Mapoka aya anoshanda anogona kuita zvemakemikari nemapoka anoshanda anoenderana ari mu matrix material kuti agadzire makemikari bonds. Semuenzaniso, kurapwa kwe oxidation kunogona kuunza mapoka e hydroxyl, mapoka e carboxyl uye mamwe mapoka anoshanda pamusoro pe carbon fibers, ayo anogona kuita neepoxymapoka ari mu resin matrix nezvimwewo kuti vagadzire ma covalent bonds. Simba rekubatana kwemakemikari uku rakakwira zvikuru kupfuura re physical bonding, izvo zvinovandudza zvikuru interfacial bonding strength pakati pe carbon fiber nezvinhu zve matrix.
Simba repamusoro re activated carbon fiber rinowedzerawo zvakanyanya. Kuwedzera kwesimba repamusoro kunoita kuti zvive nyore kuti carbon fiber inyoroveswe nezvinhu zve matrix, zvichiita kuti zvive nyore kupararira nekupinda kwe matrix zvinhu pamusoro pe carbon fiber. Mukugadzirira composites, matrix zvinhu zvinogona kugoverwa zvakaenzana zvakatenderedza carbon fibers kuti zvigadzire chimiro chakasimba. Izvi hazvingogadziri chete hunhu hwemuchina we composite zvinhu, asiwo zvinovandudza zvimwe zvinhu zvayo, zvakaita sekudzivirira ngura uye kugadzikana kwekupisa.
Mafiber ekabhoni anoshandiswa ane zvakanakira zvakawanda pakugadzira zvinhu zvinosanganisa kabhoni.
Panyaya yehunhu hwemakanika, simba rekubatana pakati pechinhu chakabatidzwafirita dzekabhoniuye matrix zvinhu zvinovandudzwa zvikuru, izvo zvinoita kuti macomposites akwanise kutamisa zviri nani kushushikana kana achinge aiswa pasi pesimba rekunze. Izvi zvinoreva kuti hunhu hwemakanika hwemacomposites akadai sesimba uye modulus hunovandudzwa zvakanyanya. Semuenzaniso, mumunda wendege, unoda hunhu hwemakanika hwakanyanya, zvikamu zvendege zvakagadzirwa nemacomposites ekabhoni akagadzirwa zvinokwanisa kutsungirira mitoro yakawanda yekubhururuka uye kuvandudza kuchengetedzeka nekuvimbika kwendege. Mumunda wezvinhu zvemitambo, zvakaita semafuremu emabhasikoro, makirabhu egorofu, nezvimwewo, macomposites ekabhoni akagadzirwa anogona kupa simba riri nani nekuomarara, ukuwo achideredza huremu uye achivandudza ruzivo rwevatambi.
Panyaya yekudzivirira ngura, nekuda kwekuiswa kwemapoka anoshanda anoshanda pamusoro pemafiber ecarbon activated, mapoka aya anoshanda anogona kugadzira kubatana kwemakemikari kwakasimba nezvinhu zvematrix, nokudaro zvichivandudza kuramba ngura kwezvinhu zvinosanganiswa. Mune mamwe mamiriro ekunze akaoma, akadai senzvimbo yegungwa, indasitiri yemakemikari, nezvimwewo, iyo inoshandazvinhu zvinosanganisa kabhoni fiberzvinogona kudzivirira zviri nani kuparadzwa kwezvinhu zvinoparadza uye kuwedzera hupenyu hwebasa. Izvi zvakakosha zvikuru kune mimwe michina nemaumbirwo anoshandiswa munzvimbo dzakaoma kwenguva yakareba.
Panyaya yekugadzikana kwekupisa, kubatana kwakanaka pakati pe activated carbon fiber nezvinhu zvematrix kunogona kuvandudza kugadzikana kwekupisa kwe composites. Pasi pemamiriro ekupisa kwakanyanya, composites dzinogona kuchengetedza hunhu hwakanaka hwemakanika uye kugadzikana kwehukuru, uye hadzina mukana wekukanganisika kana kukuvara zvakanyanya. Izvi zvinoita kuti activated carbon fiber composites ive netariro yakakura yekushandisa mukushandiswa kwekupisa kwakanyanya, senge zvikamu zveinjini yemotokari uye zvikamu zvekupisa zveinjini yendege.
Panyaya yekushanda kwekugadzira, mafiber ecarbon activated ane basa rakawanda pamusoro uye anoenderana zviri nani ne matrix material. Izvi zvinoita kuti zvive nyore kuti matrix material ipinde uye igare pamusoro pe carbon fiber panguva yekugadzirira material composite, nokudaro zvichivandudza kushanda zvakanaka kwekugadzirisa uye kunaka kwechigadzirwa. Panguva imwe chete, magadzirirwo ema composites ecarbon fiber activated anowedzerwawo, zvichiita kuti agadziriswe kuti ashandiswe zvakasiyana uye asvike kune zvakasiyana-siyana zvinodiwa zveinjiniya zvakaoma.
Nokudaro, kurapwa kwekumutsafirita dzekabhonichinhu chakakosha pakugadzirira carbon fiber composites inoshanda zvakanyanya. Kuburikidza ne activation treatment, chimiro chepamusoro checarbon fiber chinogona kuvandudzwa kuti chiwedzere kuomarara kwepamusoro, kuunza mapoka anoshanda, uye kuvandudza simba repamusoro, kuitira kuti pave ne interfacial bonding strength pakati pecarbon fiber nezvinhu zve matrix, uye kuisa hwaro hwekugadzirira carbon fiber composites dzine hunhu hwakanaka hwemakanika, kuramba ngura, kugadzikana kwekupisa uye mashandiro ekugadzirisa. Nekufambira mberi kuri kuramba kuchiita sainzi netekinoroji, zvinotendwa kuti carbon fiber activation technology icharamba ichivandudza nekuvandudza, ichipa rutsigiro rwakasimba pakushandiswa kwakakura kwecarbon fiber composites.
Shanghai Orisen New Material Technology Co., Ltd
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Email: grahamjin@jhcomposites.com
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Nguva yekutumira: Gunyana-04-2024