Abakhiqizi bamandla aphezulu aphezulu be-modulus polyethylene fiber bethule ukusebenza kwayo
(1) Ukumelana nomthelela omuhle kakhulu
I-UHMWPE fiber iyifayibha ye-thermoplastic enezinga lokushisa eliphansi lokushintsha kwengilazi.Inokuqina okuhle futhi imunca amandla enqubweni ye-deformation yepulasitiki.Ngakho-ke, izinto zayo ezihlanganisiwe zisenazo izici ezinhle zemishini ngezinga eliphezulu lokucindezeleka kanye nezinga lokushisa eliphansi.Ukumelana nomthelela kuphakeme kunalokho kwe-carbon fiber, i-arylon fiber kanye nezinhlanganisela ze-glass fiber.Umthelela othize wokumunca usuwonke amandla Et/P wenhlanganisela yefayibha ye-UHMWPE yi-1.8, 2.6 kanye nezikhathi ezi-3 kune-carbon fibre, i-aramide fibre kanye ne-fiber yengilazi engu-E, ngokulandelanayo.Ikhono lokuvikela izinhlamvu ze-UHMWPE fiber composite liphakeme izikhathi ezingu-2.5 kunalelo le-aramide fiber.Amandla omthelela wefayibha ye-UHMWPE acishe afane nalawo enayiloni, futhi ukumuncwa kwamandla kwefayibha ye-UHMWPE ngaphansi komthelela wesivinini esikhulu kuphindwe kabili kunefayibha ye-PPTA nefayibha enayiloni.Lokhu kusebenza kulungele kakhulu ukwenza izinto ezingangenwa izinhlamvu.
(2) Ukusebenza kahle kokugoba
I-polyethylene fiber enesisindo esiphezulu samangqamuzana inezici ezinhle zokugoba futhi ingakha amakhoyili okunitha namakhanda afindo ngaphandle kokuphuka.Izakhiwo zokugoba ze-glass fiber, i-carbon fibre kanye ne-arylon fiber zimbi.Ukuqhathaniswa kwezakhiwo zokucubungula zemicu ehlukahlukene kukhombisa ukuthi i-polyethylene enesisindo esikhulu samangqamuzana inamandla okubopha okuphezulu namandla okwenza indandatho, futhi i-UHMWPE fiber inokusebenza okungcono kokwenza indandatho kune-aramid fiber.
(3) Ukumelana nokukhula kwe-fiber
Ukusebenza kwe-creep ye-HSHMPE fiber kuncike ekushiseni nasekulayisheni kwendawo yokusebenza.Ukusebenza kwe-creep ye-HSHMPE fiber ku-35℃ kanye nomthwalo we-1g/d kuboniswa kuThebula 3. Uma kuqhathaniswa ne-fiber evamile, ukusebenza kokumelana nokuhamba kwe-HSHMPE fiber kuhle kakhulu.
(4) ukumelana nomswakama omuhle kanye nokumelana nokugqwala kwamakhemikhali
Ngenxa yesakhiwo samakhemikhali esilula se-polyethylene, inokumelana nokugqwala okuhle.Imikhiqizo eyenziwe ngale fibre ngeke ilahlekelwe amandla ngokuthintana nama-acids, ama-alkali, amanzi olwandle angcolile, njll. I-fiber ye-UHMWPE ine-orientation ephezulu yamangqamuzana kanye ne-crystallization, indawo ye-cross-sectional yama-macromolecules incane, ngakho-ke ukuhlelwa kweketanga kuseduze, ukuze kuvinjwe ngempumelelo ukuguguleka kwama-molecule wamanzi nama-reagents amakhemikhali, ukuze ibe nokuphikiswa okuhle kwe-solvent.Ama-Spectra fibers agcina amandla awo ngokuphelele lapho ecwiliswa isigamu sonyaka emithonjeni yezindaba ehlukahlukene, njengamanzi, uwoyela, i-asidi, nezisombululo eziyisisekelo.I-Spectra fiber igcina amandla ayo ngemva kokucwiliswa emanzini kuze kube iminyaka emibili futhi ikwazi ukumelana nokugqwala kwezinto eziphilayo.Ithebula 1 -- 8 libala ukugcinwa kwamandla kwe-Spectra fiber kanye ne-Kevlar fiber emithonjeni yamakhemikhali ehlukahlukene.Iketanga le-UHMWPE fiber macromolecular aliqukethe noma iyiphi indandatho enamakha, iqembu le-amino, iqembu le-hydroxyl noma amanye amaqembu amakhemikhali asengozini yokuhlaselwa kwe-reagent esebenzayo, i-crystallinity iphezulu, ngakho-ke amandla endaweni ehlukahlukene ye-caustic agcinwa ngaphezu kuka-90%, kuyilapho i-aramid fiber in i-asidi eqinile, isisekelo esiqinile siyancipha kakhulu.
(5) Ukumelana nokugqoka
Ukumelana nokugqokwa kwempahla ngokuvamile kuncipha ngemodulus enkulu, kodwa ngefayibha ye-UHMWPE, ukuthambekela kuphambene, lokhu kungenxa ye-coefficient yayo ephansi yokungqubuzana, ngakho inokuqina okuphezulu.Intambo yefiber yeSpectra900PE inenombolo yomjikelezo wokuphuka ngokuphindwe izikhathi ezingu-8 kune-aramid fiber, futhi inamandla okukhathala aphezulu okuguga nokugoba kune-aramid fiber.Ngenxa yokucubungula kwayo kalula, inethuba elihle lokufaka isicelo embonini.Gqoka ukumelana kwe-UHMWPE emqhele wepulasitiki, izikhathi ezimbalwa kune-carbon steel, i-Huang Gang engagqoki, ukumelana kwayo nokugqoka kuphindwe kaningi kune-polyethylene evamile, futhi ngobuningi be-molecule obuhlobene, ukusebenza kokumelana nokugqoka kuyathuthukiswa, kodwa ngemva kokuthi isisindo samangqamuzana esihlobene sifinyelela inani elithile, ukumelana kwayo nokugqoka akusashintshi ngesisindo samangqamuzana esihlobene.
(6) Ukufakwa kukagesi nokumelana nokukhanya
Ukudluliswa kwezinhlanganisela zefayibha ye-UHMWPE eqinisiwe kumagagasi e-radar kuphakeme kunaleyo yezinhlanganisela eziqiniswe nge-fiber yengilazi ngenxa yamanani aphansi we-dielectric engaguquki kanye nokulahlekelwa kwe-dielectric kanye namagagasi e-radar ambalwa abonisayo.I-dielectric engaguquki ye-polyethylene impahla kanye nenani lokulahlekelwa ukonga amandla lincane, elifanele ukwenziwa kwama-radomes ahlukahlukene.Ngaphezu kwalokho, amandla e-dielectric e-UHMWPE angaba ngu-700kV/mm, akwazi ukulawula ukudluliswa kwe-arc nenhlansi kagesi.
Ngisho nangemva kokukhanya kwamahora angu-1500, izinga lokugcinwa kwamandla kwefayibha ye-UHMWPE cishe lingamaphesenti angama-68, kuyilapho eminye imicu ingaphansi kwamaphesenti angama-50.
Isikhathi sokuthumela: Aug-15-2022
