Ngophuhliso lwetekhnoloji ephezulu yanamhlanje, ukuphazamiseka kombane (i-EMI) kunye nokuhambelana kwe-electromagnetic compatability (EMC) iingxaki ezibangelwa ngamaza ombane wombane ziya zisiba mbi ngakumbi.Azibangeli kuphela ukuphazamiseka kunye nomonakalo kwizixhobo zombane kunye nezixhobo, zichaphazela ukusebenza kwazo okuqhelekileyo, kwaye zithintele ngokunzulu ukhuphiswano lwelizwe lethu kumazwe ngamazwe kwiimveliso ze-elektroniki kunye nezixhobo, kwaye zingcolisa indalo kwaye zibeke impilo yabantu emngciphekweni;Ukongeza, ukuvuza kwamaza ombane kuya kubeka emngciphekweni ukhuseleko lolwazi lwesizwe kunye nokhuseleko lweemfihlo ezingundoqo zomkhosi.Ngokukodwa, izixhobo ze-electromagnetic pulse, ezizizixhobo zombono omtsha, zenze impumelelo enkulu, enokuhlasela ngokuthe ngqo izixhobo zombane, iinkqubo zamandla, njl.

Ke ngoko, ukuphonononga izixhobo ezisebenzayo zokukhusela i-electromagnetic ukukhusela ukuphazamiseka kwe-electromagnetic kunye neengxaki zokuhambelana kwe-electromagnetic ezibangelwa ngamaza ombane kuya kuphucula ukhuseleko kunye nokuthembeka kweemveliso zombane kunye nezixhobo, ukonyusa ukhuphiswano lwamazwe aphesheya, ukuthintela izixhobo ze-electromagnetic pulse, kunye nokuqinisekisa ukhuseleko lweenkqubo zonxibelelwano zolwazi kunye nenkqubo yenethiwekhi. , iinkqubo zothumelo, amaqonga ezixhobo, njl.njl. zibaluleke kakhulu.

1. Umgaqo-siseko we-electromagnetic shielding(EMI)

Ukukhusela i-electromagnetic kukusetyenziswa kwezinto ezikhuselayo ukuvala okanye ukunciphisa usasazo lwamandla ombane phakathi kwendawo ekhuselweyo kunye nehlabathi langaphandle.Umgaqo wokukhusela i-electromagnetic kukusebenzisa umzimba okhuselayo ukubonakalisa, ukufunxa kunye nokukhokela ukuhamba kwamandla e-electromagnetic, ehambelana ngokusondeleyo neentlawulo, imisinga kunye ne-polarization eyenziwe kumphezulu wesakhiwo sokukhusela nangaphakathi komzimba okhuselayo.Ukukhusela kwahlulwe kwintsimi yombane (i-electrostatic shielding kunye ne-alternating field electric field shielding), i-magnetic field shielding (i-low-frequency magnetic field kunye ne-high-frequency magnetic field shielding) kunye ne-electromagnetic field shielding (i-electromagnetic wave shielding) ngokomgaqo wayo.Ngokubanzi, ukukhusela i-electromagnetic kubhekiselele kokugqibela, oko kukuthi, ukukhusela amandla ombane kunye nemagnethi ngaxeshanye.

2. Imathiriyeli yokukhusela i-Electromagnetic

Okwangoku, i-electromagnetic shielding coatings ehlanganisiweyo isetyenziswa ngokubanzi.Iingoma zabo eziphambili ziyi-resin eyenza ifilimu, i-conductive filler, i-diluent, i-ejenti yokudibanisa kunye nezinye izongezo.I-conductive filler yinxalenye ebalulekileyo yalo.Eqhelekileyo yisilivere (Ag) umgubo kunye nobhedu (Cu) umgubo., i-nickel (Ni) umgubo, umgubo wobhedu ofakwe isilivere, i-carbon nanotubes, igraphene, i-nano ATO, njl.

2.1Iinanotube zekhabhoni(CNTs)

Iinanotubes zeCarbon zinomlinganiso omkhulu, umbane obalaseleyo, iipropathi zemagneti, kwaye zibonise ukusebenza okugqwesileyo kwi-conductivity, ukufunxa kunye nokukhusela.Ke ngoko, uphando kunye nophuhliso lwekhabhoni nanotubes njengezizalisi eziqhubayo zokugquma i-electromagnetic shielding coatings ziye zathandwa ngakumbi.Oku kubeka iimfuno eziphezulu kubunyulu, imveliso, kunye nexabiso le-carbon nanotubes.I-carbon nanotubes eveliswa nguHongwu Nano, kubandakanywa i-single-walled kunye ne-multi-walled, inobunyulu obufikelela kwi-99%.Ingaba i-carbon nanotubes ihlakazwe kwi-resin ye-matrix kunye nokuba inobudlelwane obuhle kunye ne-matrix resin iba yinto ethe ngqo echaphazela ukusebenza kokukhusela.IHongwu Nano ikwabonelela ngesisombululo sokusasazeka kwekhabhoni nanotube.

2.2 I-Flake yomgubo wesilivere enoxinano olusezantsi olubonakalayo

Olona tyaliso lokuqala lwapapashwayo yayililungelo elilodwa lomenzi wechiza elakhutshwa yi-United States ngo-1948 elenza ukuba isilivere kunye ne-epoxy resin ibe yinto yokuncamathelisa.Ipeyinti ye-electromagnetic ekhuselayo elungiselelwe ngebhola egayiweyo yomgubo wesilivere oveliswe nguHongwu Nano uneempawu zokuxhathisa okuphantsi, ukuqhuba kakuhle, ukusebenza kakuhle kokukhusela, ukunyamezelana okusingqongileyo okuqinileyo, kunye nolwakhiwo olufanelekileyo.Zisetyenziswa ngokubanzi kunxibelelwano, i-elektroniki, unyango, i-aerospace, izibonelelo zenyukliya kunye nezinye iindawo.Ipeyinti yokukhusela ifanelekile ukugquma komhlaba we-ABS, i-PC, i-ABS-PCPS kunye nezinye iiplastiki zobunjineli.Iimpawu zokusebenza ezibandakanya ukumelana nokunxiba, ukumelana nobushushu obuphezulu kunye nokuphantsi, ukufuma kunye nokumelana nobushushu, ukuncamathela, ukumelana nombane, ukuhambelana kombane, njl njl.

2.3 Umgubo wobhedu kunye nomgubo wenickel

Ipeyinti yeCopper powder conductive inexabiso eliphantsi kwaye kulula ukuyipeyinta, ikwanazo nefuthe elihle lokukhusela i-electromagnetic, kwaye ke isetyenziswa ngokubanzi.Ilungele ngokukodwa ukuphazamiseka kwe-anti-electromagnetic wave yeemveliso zombane ezineeplastiki zobunjineli njengeqokobhe, kuba ipeyinti yobhedu yobhedu inokutshizwa okanye ibrashwe ngokulula.Imiphezulu yeplastiki yeemilo ezahlukeneyo yenziwe ngesinyithi ukwenza umaleko okhuselayo we-electromagnetic, ukuze iplastiki ibe nokufezekisa injongo yokukhusela amaza ombane.I-morphology kunye nenani lepowder yethusi inefuthe elikhulu ekuqhubeni kwengubo.Umgubo wobhedu unemilo engqukuva, idendritic, kunye neflake.Imilo yeflake inommandla woqhagamshelwano omkhulu ngakumbi kunemilo engqukuva kwaye ibonisa ukuqhuba kakuhle.Ukongezelela, umgubo wobhedu (umgubo wobhedu owenziwe ngesilivere) ufakwe kwi-metallic powder yesilivere engasebenziyo, okungekho lula ukuyikhupha, kunye nomxholo wesilivere ngokubanzi kwi-5-30%.I-Copper powder conductive coating isetyenziselwa ukusombulula i-electromagnetic shielding ye-ABS, i-PPO, i-PS kunye nezinye iiplastiki zobunjineli kunye neenkuni kunye ne-conductivity yombane, inoluhlu olubanzi lwesicelo kunye nexabiso lokunyusa.

Ukongeza, iziphumo zokulinganisa ukusebenza kombane we-nano nickel powder kunye ne-electromagnetic shielding coatings ezixutywe ne-nano kunye ne-micron nickel powder zibonisa ukuba ukongezwa kwesuntswana le-nano Ni kunokunciphisa ukusebenza kwe-electromagnetic shielding, kodwa kunokonyusa ilahleko yokufunxa.I-tangent yokulahleka kwemagnethi iyancipha, kunye nomonakalo wokusingqongileyo, izixhobo kunye nempilo yabantu ebangelwa ngamaza ombane.

2.4 INano Tin yeAntimony Oxide (ATO)

I-Nano ATO powder, njenge-filler ekhethekileyo, inokungafihli okuphezulu kunye nokuhamba, kunye noluhlu olubanzi lwezicelo kwiindawo zokubonisa izinto zokugquma, ii-antistatic coatings, kunye ne-transparent thermal insulation coatings.Phakathi kwezinto ezibonisa ukugquma kwezixhobo ze-optoelectronic, izixhobo ze-nano ze-ATO zine-anti-static, anti-glare kunye ne-anti-radiation imisebenzi, kwaye zaqala ukusetyenziswa njengezinto zokubonisa i-electromagnetic shielding.Izixhobo zokugquma i-ATO nano zinokucaca kakuhle kombala wokukhanya, ukuhanjiswa kombane kakuhle, amandla oomatshini kunye nokuzinza, kunye nesicelo sabo sokubonisa izixhobo sesinye sezona zicelo zibalulekileyo zeshishini lezinto ze-ATO okwangoku.Izixhobo ze-Electrochromic (ezifana neziboniso okanye iifestile ezihlakaniphile) okwangoku ziyinkalo ebalulekileyo yezicelo ze-nano-ATO kwibala lokubonisa.

2.5 Igraphene

Njengodidi olutsha lwemathiriyeli yekhabhoni, igraphene kunokwenzeka ukuba ibe luhlobo olutsha lokhuselo lwe-electromagnetic okanye imathiriyeli efunxa i-microwave kunecarbon nanotubes.Ezona zizathu ziphambili ziquka le miba ilandelayo:

①IGraphene yifilimu ethe tyaba enehexagonal eyenziwe ngeeathom zekhabhoni, imathiriyeli enamacala amabini anobunzima beathom yekhabhoni enye kuphela;

②IGraphene yeyona nto incinci kwaye inzima kakhulu emhlabeni;

③I-thermal conductivity iphezulu kunaleyo yecarbon nanotubes kunye nedayimani, ifikelela malunga ne-5 300W/m•K;

④IGraphene yimathiriyeli eneyona nto incinci yokuxhathisa emhlabeni, kuphela yi-10-6Ω•cm;

⑤Ukuhamba kwe-electron yegraphene kwiqondo lobushushu begumbi liphezulu kunolo lwe-carbon nanotubes okanye iikristale zesilicon, ezidlula i-15 000 cm2/V•s.Xa kuthelekiswa nemathiriyeli yemveli, igraphene inokophula imida yoqobo kwaye ibe yinto esebenzayo yokufunxa amaza ukuze ihlangabezane neemfuno zokufunxa.Izixhobo zamaza zineemfuno "ezincinci, zilula, zibanzi kwaye zinamandla".

Ukuphuculwa kokhuselo lwe-electromagnetic kunye nokusebenza kwezinto ezifunxayo kuxhomekeke kumxholo wearhente efunxayo, ukusebenza kwearhente efunxayo kunye nokuhambelana okuhle kwe-impedance ye-substrate efunxayo.IGraphene ayinayo kuphela ubume bomzimba obukhethekileyo kunye neempawu ezibalaseleyo zoomatshini kunye ne-electromagnetic, kodwa ineempawu ezilungileyo zokufunxa ii-microwave.Emva kokuba idibaniswe ne-nanoparticles yamagnetic, uhlobo olutsha lwezinto eziphathekayo lunokufumaneka, olunokulahleka kombane kunye nombane.Kwaye inamathemba amahle okusebenza kwindawo yokukhusela i-electromagnetic kunye nokufunxa kwi-microwave.

Kwezi zinto ziqhelekileyo zokukhusela i-electromagnetic shielding nano powders, zombini ziyafumaneka yiHongwu Nano ngokuzinzileyo kunye nomgangatho olungileyo.