I-adhesive Conductive i-adhesive ekhethekileyo, eyenziwa ngokukodwa nge-resin kunye ne-conductor filler (efana nesilivere, igolide, ubhedu, i-nickel, i-tin kunye ne-alloys, i-carbon powder, i-graphite, njl. iinkqubo izixhobo.
Kukho iintlobo ezininzi zokuncamathelisa okuqhubekileyo.Ngokwamacandelo ahlukeneyo okuqhuba, i-adhesives conductive inokwahlulwa ibe yintsimbi (igolide, isilivere, ithusi, i-aluminium, i-zinc, isinyithi, i-nickel powder)-based kunye ne-carbon-based conductive adhesives.Phakathi kwezi zinto zincamathelayo zingentla, i-adhesive conductive eyenziwe ngomgubo wesilivere ine-conductivity egqwesileyo, ukuncamathelisa kunye nokuzinza kweekhemikhali, kuya kuba nzima ukuba ifakwe kwi-oxidized kumaleko wokuncamathelisa, kunye nesantya se-oxidation emoyeni nayo icotha kakhulu nokuba i-oxidized. i-oxide yesilivere eyenziweyo isenayo i-conductivity elungileyo.Ke ngoko, kwimarike, ngakumbi kwizixhobo zombane ezineemfuno zokuthembeka okuphezulu, i-adhesives conductive kunye nomgubo wesilivere njengezizaliso zombane zezona zisetyenziswa kakhulu.Ekukhetheni i-matrix resin, i-epoxy resin iye yaba yinto yokuqala yokukhetha ngenxa yomxholo wayo ophezulu wamaqela asebenzayo, amandla aphezulu okubambisana, ukunamathela okulungileyo, iimpawu ezibalaseleyo zoomatshini, kunye neempawu ezibalaseleyo zokudibanisa.
Niniumgubo wesilivereyongezwa kwi-epoxy adhesive njenge-conductive filler, indlela yayo yokuqhubela phambili luqhagamshelwano phakathi komgubo wesilivere.Ngaphambi kokuba i-adhesive conductive iphiliswe kwaye yomiswe, i-powder yesilivere kwi-adhesive epoxy ikhona ngokuzimeleyo kwaye ayibonisi ukudibanisa okuqhubekayo kunye nomnye, kodwa ikwimeko engenziyo kunye ne-insulating.Emva kokunyanga kunye nokumisa, ngenxa yokunyangwa kwenkqubo, i-powders yesilivere idibaniswe komnye nomnye kwi-chain shape ukwenza i-network conductive, ebonisa ukuqhuba.Emva kokongeza i-powder yesilivere kwi-adhesive epoxy kunye nokusebenza kakuhle (inani le-agent enzima kunye ne-ejenti yokuphilisa i-10% kunye ne-7% ye-epoxy resin mass, ngokulandelanayo), ukusebenza kuvavanywa emva kokunyanga.Ngokutsho kwedatha yovavanyo, njengoko isixa sokuzaliswa kwesilivere kwi-adhesive conductive inyuka, i-resistivity yevolumu iyancipha kakhulu.Oku kungenxa yokuba xa umxholo womgubo wesilivere uncinci kakhulu, inani le-resin kwinkqubo lingaphezulu kwe-conductive filler powder yesilivere, kwaye umgubo wesilivere kunzima ukudibanisa ukwenza inethiwekhi esebenzayo, ngaloo ndlela ibonisa ukuxhathisa okuphezulu. .Ngokunyuka kwexabiso lokuzaliswa kwe-powder yesilivere, ukuhla kwe-resin kwandisa ukudibanisa kwe-powder yesilivere, enenzuzo ekubunjweni kwenethiwekhi ye-conductive kunye nokunciphisa ukuxhatshazwa kwevolumu.Xa inani lokuzaliswa liyi-80%, ukuphikiswa kwevolumu yi-0.9 × 10-4Ω • cm, ene-conductivity enhle, i-FYI.
Imiqulu yesiliverekunye nobukhulu be-particle adjustable (ukusuka kwi-20nm-10um), iimilo ezahlukeneyo (i-spherical, kufuphi ne-spherical, i-flake) kunye nenkonzo elungiselelwe ubuninzi, i-SSA, njl.
Ngolwazi oluthe vetshe, nceda ungathandabuzi ukuqhagamshelana nathi.
Ixesha lokuposa: Sep-17-2021