Sisebenzisa amakhukhi ukuthuthukisa ulwazi lwakho.Ngokuqhubeka nokuphequlula leli sayithi, uyavumelana nokusebenzisa kwethu amakhukhi.Ulwazi Olwengeziwe.
Izinzwa zengcindezi ezigqokekayo zingasiza ukuqapha impilo yomuntu futhi zibone ukusebenzisana kwekhompyutha yomuntu.Imizamo iyaqhubeka yokudala izinzwa zokucindezela ezinomklamo wendawo yonke kanye nokuzwela okuphezulu ekucindezelekeni komshini.
Ucwaningo: Iphethini yokuluka i-transducer ye-textile piezoelectric pressure encike ku-electrospun polyvinylidene fluoride nanofiber enamabhomu angu-50.Ikhredithi Yesithombe: African Studio/Shutterstock.com
I-athikili eshicilelwe kujenali i-npj Flexible Electronics ibika ngokwenziwa kweziguquli ze-piezoelectric pressure yezindwangu zisebenzisa i-polyethylene terephthalate (PET) warp yarns ne-polyvinylidene fluoride (PVDF) weft yarns.Ukusebenza kwenzwa yokucindezela ethuthukisiwe ngokuhlobene nesilinganiso sokucindezela okusekelwe kuphethini yokuluka kuboniswa esikalini sendwangu esingamamitha angaba ngu-2.
Imiphumela ibonisa ukuthi ukuzwela kwenzwa yokucindezela okwenziwe kahle kusetshenziswa idizayini ye-2/2 ye-canard iphakeme ngo-245% kunaleyo yomklamo we-canard we-1/1.Ngaphezu kwalokho, okokufaka okuhlukahlukene kwasetshenziselwa ukuhlola ukusebenza kwezindwangu ezithuthukisiwe, okuhlanganisa ukugoba, ukukhama, ukushwabana, ukusonteka nokunyakaza kwabantu okuhlukahlukene.Kulo msebenzi, inzwa yokucindezela okusekelwe esicutshini enohlelo lwephikseli lenzwa ibonisa izici zokuqonda ezizinzile nokuzwela okuphezulu.
Ilayisi.1. Ukulungiswa kwezintambo ze-PVDF nezindwangu ezisebenzayo.umdwebo wenqubo ye-electrospinning engu-50-nozzle esetshenziselwa ukukhiqiza amacansi aqondanisiwe wama-nanofibers e-PVDF, lapho izinti zethusi zibekwe ngokuhambisana ebhandeni lokuthutha, futhi izinyathelo ziwukulungisa izakhiwo ezintathu ezilukiwe ezivela emiculweni ye-monofilament enezendlalelo ezine.b Isithombe se-SEM nokusabalalisa kobubanzi bemicu ye-PVDF eqondanisiwe.c Isithombe se-SEM sentambo enamacala amane.d Amandla aqinile kanye nobunzima ekuqhekekeni kwentambo enezintambo ezine njengomsebenzi wokusonta.Iphethini ye-X-ray diffraction yochungechunge olunezinhlangothi ezine ebonisa ubukhona bezigaba ze-alpha ne-beta.© Kim, DB, Han, J., Sung, SM, Kim, MS, Choi, BK, Park, SJ, Hong, H. R et al.(2022)
Ukuthuthukiswa okusheshayo kwamarobhothi ahlakaniphile nemishini kagesi egqokekayo kuye kwadala imishini eminingi emisha esekelwe kuzinzwa zengcindezi eguquguqukayo, futhi ukusetshenziswa kwazo kwezobuchwepheshe, imboni, kanye nemithi kukhula ngokushesha.
I-Piezoelectricity iyishaji kagesi ekhiqizwa ngento engaphansi kwengcindezi yemishini.I-Piezoelectricity ezintweni ezingama-asymmetric ivumela ubudlelwano obubuyela emuva obuqondile phakathi kwengcindezi yemishini nokushajwa kukagesi.Ngakho-ke, lapho ucezu lwempahla ye-piezoelectric lukhubazekile ngokomzimba, kwakhiwa ukushaja kagesi, futhi ngokuphambene nalokho.
Imishini ye-Piezoelectric ingasebenzisa umthombo wamahhala wokusebenza ukuze unikeze omunye umthombo wamandla wezingxenye ze-elekthronikhi ezisebenzisa amandla amancane.Uhlobo lwezinto kanye nesakhiwo sedivayisi yimingcele eyinhloko yokukhiqizwa kwemishini yokuthinta esekelwe ku-electromechanical coupling.Ngokungeziwe kuzinto ezisetshenziswayo ezingamandla kagesi aphezulu, izinto eziphilayo eziguquguqukayo zibuye zahlolwa kumadivayisi agqokekayo.
Ama-polymers acutshungulwe abe ama-nanofiber ngezindlela ze-electrospinning asetshenziswa kabanzi njengamadivayisi okugcina amandla e-piezoelectric.I-Piezoelectric polymer nanofibers yenza kube lula ukudalwa kwezakhiwo ezisekelwe endwangu ezigqokekayo zezinhlelo zokusebenza ezigqokekayo ngokuhlinzeka ngokukhiqiza kwe-electromechanical okusekelwe ekunwebeni komshini ezindaweni ezihlukahlukene.
Ngale njongo, ama-polymers e-piezoelectric asetshenziswa kakhulu, kufaka phakathi i-PVDF kanye nokuphuma kwayo, okune-piezoelectricity eqinile.Le micu ye-PVDF idonswa bese iphothwa ibe yizindwangu zokusetshenziswa kwe-piezoelectric okuhlanganisa izinzwa namajeneretha.
Umfanekiso 2. Izicubu zendawo enkulu kanye nezakhiwo zazo ezibonakalayo.Isithombe sephethini enkulu yezimbambo ezi-2/2 ezifika ku-195 cm x 50 cm.b Isithombe se-SEM sephethini ye-weft engu-2/2 ehlanganisa i-PVDF weft eyodwa ehlangene nezisekelo ezimbili ze-PET.c I-Modulus kanye nokuqina ngesikhathi sokuphumula ezindwangu ezihlukahlukene ezinemiphetho ye-weft engu-1/1, 2/2 kanye no-3/3.d i-engeli yokulenga ekalwa ngendwangu.© Kim, DB, Han, J., Sung, SM, Kim, MS, Choi, BK, Park, SJ, Hong, H. R et al.(2022)
Emsebenzini wamanje, amajeneretha endwangu asekelwe ku-PVDF nanofiber filaments akhiwa kusetshenziswa inqubo ye-electrospinning ye-50-jet elandelanayo, lapho ukusetshenziswa kwama-nozzles angu-50 kusiza ukukhiqizwa kwamacansi e-nanofiber kusetshenziswa ibhande elijikelezayo lokuhambisa ibhande.Izakhiwo ezihlukene zokuluka zidalwe kusetshenziswa intambo ye-PET, kufaka phakathi i-1/1 (ithafa), i-2/2 kanye nezimbambo ze-3/3 ze-weft.
Umsebenzi wangaphambilini ubike ukusetshenziswa kwe-copper yokuqondanisa ifayibha ngendlela yezintambo zethusi eziqondanisiwe ezigubhu zokuqoqa ifayibha.Kodwa-ke, umsebenzi wamanje uqukethe izinti zethusi ezihambisanayo ezihlukaniswe ngamasentimitha angu-1.5 ebhandeni lokuthutha ukuze lisize ukuqondanisa ama-spinnerets ngokusekelwe ekusebenzelaneni kwe-electrostatic phakathi kwamafayibha ashajwayo angenayo kanye namashaji angaphezulu kwemicu enamathiselwe ku-fiber yethusi.
Ngokungafani nezinzwa ze-capacitive ezichazwe ngaphambilini noma ze-piezoresistive, inzwa yokucindezela kwezicubu ehlongozwayo kuleli phepha isabela ezinhlobonhlobo zamandla okufaka kusuka ku-0.02 kuya ku-694 Newtons.Ngaphezu kwalokho, inzwa yokucindezela kwendwangu ehlongozwayo igcine u-81.3% okokufaka kwayo kwasekuqaleni ngemva kokugeza okujwayelekile okuhlanu, okubonisa ukuqina kwenzwa yokucindezela.
Ngaphezu kwalokho, amanani okuzwela ahlola i-voltage nemiphumela yamanje ye-1/1, 2/2, kanye ne-3/3 ye-rib knitting abonise ukuzwela kwe-voltage ephezulu ye-83 kanye ne-36 mV/N kuya ku-2/2 kanye ne-3/3 ye-rib pressure.Izinzwa ze-3 weft zibonise ukuzwela okuphezulu okungu-245% no-50% kwalezi zinzwa zokucindezela, ngokulandelana, uma kuqhathaniswa ne-24 mV/N weft pressure sensor 1/1.
Ilayisi.3. Ukusetshenziswa okunwetshiwe kwenzwa yokucindezela kwendwangu egcwele.isibonelo senzwa yokucindezela kwe-insole eyenziwe ngendwangu eyizimbambo eziyi-2/2 efakwe ngaphansi kwama-electrode amabili ayindilinga ukuze ibone ingaphambili (ngezansi nje kwezinzwane) kanye nokunyakaza kwesithende.b Ukumelwa okuhleliwe kwesigaba ngasinye sezinyathelo zomuntu ngamunye enqubweni yokuhamba: ukuwela isithende, ukubeka phansi, ukuthintana nozwane nokuphakamisa umlenze.c Amasignali okukhipha amandla kagesi ekuphenduleni ingxenye ngayinye yesinyathelo sokuhamba ukuze kuhlaziywe indlela yokuhambahamba kanye d Amasignali akhulisiwe kagesi ahambisana nesigaba ngasinye sokuhamba.e Isikimu senzwa yokucindezela kwethishu egcwele enoxhaxha lwamaseli ephikseli angunxande afika kwangu-12 anemigqa yokuqhuba iphethini ukuze kutholwe amasignali angawodwana kuphikseli ngayinye.f Imephu ye-3D yesignali kagesi ekhiqizwa ngokucindezela umunwe kuphikseli ngayinye.g Isignali kagesi itholwa kuphela kuphikseli ecindezelwe ngomunwe, futhi ayikho isignali eseceleni ekhiqizwa kwamanye amaphikseli, okuqinisekisa ukuthi ayikho i-crosstalk.© Kim, DB, Han, J., Sung, SM, Kim, MS, Choi, BK, Park, SJ, Hong, H. R et al.(2022)
Sengiphetha, lolu cwaningo lubonisa inzwa yokucindezela kwezicubu ezwela kakhulu futhi egqokekayo ehlanganisa i-PVDF nanofiber piezoelectric filaments.Izinzwa zokucindezela ezikhiqiziwe zinebanga elibanzi lamandla okokufaka ukusuka ku-0.02 kuya ku-694 Newtons.
Kusetshenziswe imibhobho engu-50 emshinini owodwa wokuphotha kagesi oyisibonelo, futhi umata oqhubekayo wama-nanofibers wakhiqizwa kusetshenziswa umshini wokuhambisa inqwaba osuselwe ezintini zethusi.Ngaphansi kokucindezelwa ngezikhathi ezithile, indwangu ye-hem ye-weft engu-2/2 eyenziwe yabonisa ukuzwela okungu-83 mV/N, okucishe kube ngama-245% ngaphezu kwendwangu yomphetho we-weft engu-1/1.
Izinzwa zengcindezi ezilukiwe zonke ezihlongozwayo ziqapha amasiginali kagesi ngokuwafaka ngaphansi kokunyakaza komzimba, okuhlanganisa ukusonteka, ukugoba, ukumpintsha, ukugijima nokuhamba.Ngaphezu kwalokho, lezi zikali zokucindezela kwendwangu ziqhathaniswa nezindwangu ezivamile ngokuhlala isikhathi eside, zigcina cishe u-81.3% wesivuno sazo sangempela ngisho nangemva kokugeza okujwayelekile okungu-5.Ukwengeza, inzwa yethishu ekhiqiziwe iyasebenza ohlelweni lokunakekelwa kwezempilo ngokukhiqiza amasignali kagesi asekelwe ezingxenyeni eziqhubekayo zokuhamba komuntu.
Kim, DB, Han, J., Sung, SM, Kim, MS, Choi, BK, Park, SJ, Hong, HR, et al.(2022).Inzwa yokucindezela kwendwangu ye-piezoelectric esekelwe ku-electrospun polyvinylidene fluoride nanofibers enamabhomu angu-50, kuye ngephethini yokuluka.I-Flexible electronics npj.https://www.nature.com/articles/s41528-022-00203-6.
Ukuzihlangula: Imibono evezwe lapha ngeyombhali ngokwesikhundla sakhe siqu futhi ayibonisi imibono ye-AZoM.com Limited T/A AZoNetwork, umnikazi kanye nomsebenzisi wale webhusayithi.Lesi sitatimende siyingxenye yemigomo yokusebenzisa le webhusayithi.
UBhavna Kaveti ungumbhali wesayensi waseHyderabad, eNdiya.Uneziqu ze-MSc kanye ne-MD e-Vellore Institute of Technology, e-India.kukhemikhali yemvelo neyezokwelapha evela eNyuvesi yaseGuanajuato, eMexico.Umsebenzi wakhe wocwaningo uhlobene nokuthuthukiswa kanye nokuhlanganiswa kwama-molecule e-bioactive asekelwe kuma-heterocycles, futhi unolwazi ekuhlanganiseni kwezinyathelo eziningi kanye nezingxenye eziningi.Phakathi nocwaningo lwakhe lobudokotela, usebenze ekuhlanganiseni ama-molecule e-peptidomimetic ahlukene asekelwe ku-heterocycle ahlanganiswe futhi ahlanganisiwe okulindeleke ukuthi abe namandla okuqhubeka nokusebenza komsebenzi webhayoloji.Ngenkathi ebhala ama-dissertation namaphepha ocwaningo, wahlola uthando lwakhe lokubhala kwesayensi nokuxhumana.
I-Cavity, i-Buffner.(Agasti 11, 2022).Inzwa yokucindezela kwendwangu egcwele eyenzelwe ukuqapha impilo okugqokekayo.Azonano.Ibuyiselwe ngo-Okthoba 21, 2022 kusukela ku-https://www.azonano.com/news.aspx?newsID=39544.
I-Cavity, i-Buffner."Inzwa yokucindezela kwezicubu zonke eyenzelwe ukuqapha impilo okugqokekayo".Azonano.Okthoba 21, 2022.Okthoba 21, 2022.
I-Cavity, i-Buffner."Inzwa yokucindezela kwezicubu zonke eyenzelwe ukuqapha impilo okugqokekayo".Azonano.https://www.azonano.com/news.aspx?newsID=39544.(Kusukela ngo-Okthoba 21, 2022).
I-Cavity, i-Buffner.2022. Inzwa yokucindezela kwendwangu yonke idizayinelwe ukugqokwa kwezempilo okugqokekayo.I-AZoNano, ifinyelelwe zingama-21 kuMfumfu 2022, https://www.azonano.com/news.aspx?newsID=39544.
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Kule ngxoxo, u-AZoNano uxoxa ne-UC Berkeley's King Kong Lee mayelana nobuchwepheshe bakhe bokuwina uMklomelo kaNobel, ama-tweezers optical.
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I-Inoveno PE-550 iwumshini othengisa kakhulu we-electrospinning/spraying wokukhiqiza okuqhubekayo kwe-nanofiber.
I-Filmetrics R54 Ithuluzi elithuthukisiwe lokumelana neshidi le-semiconductor namawafa ayinhlanganisela.