Ka nts'etsopele ea theknoloji e phahameng ea sejoale-joale, mathata a ho kena-kenana le motlakase (EMI) le electromagnetic comppatibility (EMC) mathata a bakoang ke maqhubu a motlakase a ntse a mpefala le ho feta.Ha di bake tšitiso le tshenyo ya disebediswa le disebediswa tsa elektroniki feela, di ama tshebetso ya tsona e tlwaelehileng, mme di thibela ka matla tlhodisano ya naha ya rona ya matjhaba ka dihlahiswa le disebediswa tsa elektroniki, hape di silafatsa tikoloho le ho beha bophelo ba batho kotsing;Ho feta moo, ho lutla ha maqhubu a motlakase ho tla beha ts'ireletso ea tlhahisoleseling le ts'ireletso ea liphiri tsa mantlha tsa sesole kotsing.Haholo-holo, libetsa tsa electromagnetic pulse, tseo e leng libetsa tse ncha, li entse tsoelo-pele e kholo, e ka hlaselang lisebelisoa tsa elektroniki ka kotloloho, lits'ebetso tsa motlakase, jj.

Ka hona, ho hlahloba lisebelisoa tse sireletsang tsa motlakase ho thibela ho kena-kenana le motlakase le mathata a ho lumellana ha motlakase a bakoang ke maqhubu a motlakase ho tla ntlafatsa polokeho le ts'epahalo ea lihlahisoa le lisebelisoa tsa elektroniki, ho ntlafatsa tlholisano ea machabeng, ho thibela libetsa tsa motlakase, le ho netefatsa polokeho ea litsamaiso tsa puisano tsa tlhahisoleseling le sistimi ea marang-rang. , litsamaiso tsa phetiso, sethala sa libetsa, joalo-joalo li bohlokoa haholo.

1. Molao-motheo oa tšireletso ea motlakase (EMI)

Electromagnetic shielding ke ts'ebeliso ea lisebelisoa tse sireletsang ho thibela kapa ho fokotsa ho ata ha matla a makenete a motlakase lipakeng tsa sebaka se sirelelitsoeng le lefatše le kantle.Molao-motheo oa tšireletso ea motlakase ke ho sebelisa 'mele o sireletsang ho bonahatsa, ho monya le ho tataisa phallo ea matla a motlakase, e amanang haufi-ufi le litefiso, maqhubu le polarization e hlahisitsoeng holim'a sebopeho sa tšireletso le ka hare ho' mele o sireletsang.Tšireletso e arotsoe ka tšireletso ea tšimo ea motlakase (ho sireletsa motlakase le ho fapanyetsana sebaka sa motlakase), tšireletso ea matla a khoheli (leqhubu le tlaase-frequency magnetic field le high-frequency magnetic field shielding) le electromagnetic field shielding (electromagnetic wave shielding) ho ea ka molao-motheo oa eona.Ka kakaretso, tšireletso ea motlakase e bua ka ea morao-rao, ke hore, ho sireletsa matla a motlakase le a makenete ka nako e le 'ngoe.

2. Lintho tse sireletsang motlakase oa motlakase

Hona joale, liphahlo tse kopantsoeng tsa electromagnetic shielding li sebelisoa haholo.Liqapi tsa bona tse ka sehloohong ke resin e etsang lifilimi, li-conductive filler, diluent, coupling agent le li-additives tse ling.Conductive filler ke karolo ea bohlokoa ea eona.E tloaelehileng ke silevera(Ag) phofo le koporo(Cu) phofo., nickel(Ni) phofo, phofo ea koporo e entsoeng ka silevera, carbon nanotubes, graphene, nano ATO, joalo-joalo.

2.1Li-nanotube tsa carbon(CNTs)

Li-nanotubes tsa carbon li na le karolo e kholo ea likarolo, lisebelisoa tse ntle tsa motlakase, tsa makenete, 'me li bonts'itse ts'ebetso e ntle haholo ho conductivity, ho monya le ho sireletsa.Ka hona, lipatlisiso le nts'etsopele ea li-nanotubes tsa carbon e le li-conductive fillers bakeng sa likoti tse sireletsang motlakase li 'nile tsa tsebahala le ho feta.Sena se beha litlhoko tse phahameng holim'a bohloeki, tlhahiso, le litšenyehelo tsa carbon nanotubes.Li-carbon nanotubes tse hlahisoang ke Hongwu Nano, ho kenyelletsa le marako a le mong le marako a mangata, li na le bohloeki bo fihlang ho 99%.Hore na li-carbon nanotubes li hasane ka har'a resin ea matrix le hore na li na le kamano e ntle le resin ea matrix e fetoha ntho e tobileng e amang ts'ebetso ea ts'ireletso.Hongwu Nano e boetse e fana ka tharollo ea khaso ea carbon nanotube e qhalakaneng.

2.2 Flake silver powder e nang le boima bo tlase bo bonahalang

Koko ea pele e hatisitsoeng ea conductive e ne e le patent e fanoeng ke United States ka 1948 e ileng ea etsa silevera le epoxy resin hore e be sekhomaretsi se tsamaisang.Pente e sireletsang ea motlakase e lokiselitsoeng ka bolo e emilled flake silevera powders e hlahisoang ke Hongwu Nano e na le litšobotsi tsa ho hanyetsa, conductivity e ntle, ts'ireletso e phahameng ea tšireletso, mamello e matla ea tikoloho, le kaho e bonolo.Li sebelisoa haholo lipuisanong, lisebelisoa tsa elektroniki, tsa bongaka, tsa sefofane, lisebelisoa tsa nyutlelie le mafapha a mang.Pente e sireletsang e boetse e loketse ho roala holim'a ABS, PC, ABS-PCPS le lipolasetiki tse ling tsa boenjiniere.Matšoao a ts'ebetso a kenyelletsang ho hanyetsa ho roala, ho hanyetsa mocheso o phahameng le o tlase, mongobo le ho hanyetsa mocheso, ho khomarela, ho hanyetsa motlakase, ho lumellana ha motlakase, joalo-joalo, ho ka finyella maemo.

2.3 Phofo ea koporo le phofo ea nickel

Pente e tsamaisang phofo ea koporo e na le litšenyehelo tse tlase ebile e bonolo ho penta, hape e na le phello e ntle ea tšireletso ea motlakase, ka hona e sebelisoa haholo.E loketse ka ho khetheha tšitiso ea maqhubu a anti-electromagnetic wave ea lihlahisoa tsa elektroniki tse nang le lipolasetiki tsa boenjiniere joalo ka khetla, hobane pente e tsamaisang phofo ea koporo e ka fafatsoa kapa ea phunyeletsoa habonolo.Likarolo tsa polasetiki tsa libopeho tse fapaneng li entsoe ka tšepe ho theha lesela la motlakase le sireletsang motlakase, e le hore polasetiki e ka fihlela sepheo sa ho sireletsa maqhubu a motlakase.Morpholoji le palo ea phofo ea koporo li na le tšusumetso e kholo ho conductivity ea ho roala.Phofo ea koporo e na le libopeho tse chitja, tse dendritic le tse kang flake.Sebopeho sa flake se na le sebaka se seholo sa ho kopana ho feta sebopeho sa spherical mme se bontša conductivity e betere.Ho phaella moo, phofo ea koporo (phofo ea koporo e koahetsoeng ka silevera) e koahetsoe ka phofo ea silevera e sa sebetseng, eo ho seng bonolo ho e oxidize, 'me litaba tsa silevera ka kakaretso ke 5-30%.Copper powder conductive coating e sebelisetsoa ho rarolla tšireletso ea motlakase ea ABS, PPO, PS le lipolasetiki tse ling tsa boenjiniere le lehong Le conductivity ea motlakase, e na le mefuta e mengata ea ts'ebeliso le boleng ba papatso.

Ntle le moo, liphetho tsa tekanyo ea ts'ebetso ea ts'ireletso ea motlakase oa nano nickel powder le liphaephe tse sirelelitsoeng tsa motlakase tse kopantsoeng le nano le micron nickel powder li bonts'a hore tlatsetso ea nano Ni particle e ka fokotsa ts'ebetso ea ts'ireletso ea motlakase, empa e ka eketsa tahlehelo ea ho monya.Tantent ea tahlehelo ea makenete e fokotsehile, hammoho le tšenyo ea tikoloho, lisebelisoa le bophelo bo botle ba batho bo bakoang ke maqhubu a motlakase.

2.4 Nano Tin Antimony Oxide (ATO)

Nano ATO phofo, joalo ka setlamo se ikhethileng, se na le pepenene e phahameng le conductivity, 'me mefuta e mengata ea lits'ebetso libakeng tsa lisebelisoa tsa ho roala tse bonts'itsoeng, liphahlo tse tsamaisang li-antistatic, le liphahlo tse pepeneneng tsa ho kenya mocheso.Har'a lisebelisoa tsa ho roala tse bonts'ang bakeng sa lisebelisoa tsa optoelectronic, lisebelisoa tsa nano ATO li na le mesebetsi e khahlanong le static, anti-glare le anti-radiation, 'me li qalile ho sebelisoa e le lisebelisoa tsa ho roala tse sireletsang motlakase.Lisebelisoa tsa ho roala ka ATO nano li na le ponahalo e ntle ea mebala e khanyang, motlakase o motle, matla a mochine le botsitso, 'me ts'ebeliso ea tsona ea ho bonts'a lisebelisoa ke e' ngoe ea lisebelisoa tsa bohlokoa ka ho fetisisa tsa indasteri tsa thepa ea ATO hajoale.Lisebelisoa tsa Electrochromic (tse kang lipontšo kapa lifensetere tse bohlale) hajoale ke karolo ea bohlokoa ea likopo tsa nano-ATO lebaleng la pontšo.

2.5 Graphene

Joalo ka mofuta o mocha oa thepa ea khabone, graphene e kanna ea fetoha mofuta o mocha oa tšireletso ea motlakase kapa lisebelisoa tse monyang microwave ho feta carbon nanotubes.Mabaka a mantlha a kenyelletsa lintlha tse latelang:

① Graphene ke filimi e sephara e mahlakore a mabeli e entsoeng ka liathomo tsa carbon, ntho e nang le mahlakore a mabeli e nang le botenya ba athomo e le 'ngoe feela ea carbon;

②Graphene ke nanomaterial e tšesaane le e thata ka ho fetisisa lefatšeng;

③ Thermal conductivity e phahame ho feta ea carbon nanotubes le litaemane, e fihla ho hoo e ka bang 5 300W/m•K;

④Graphene ke thepa e nang le khanyetso e nyane ka ho fetisisa lefatšeng, ke 10-6Ω•cm feela;

⑤Motsamao oa elektronike oa graphene mocheso oa kamore o phahame ho feta oa carbon nanotubes kapa likristale tsa silicon, tse fetang 15 000 cm2 / V•s.Ha ho bapisoa le lisebelisoa tsa setso, graphene e ka phunyeletsa mefokolo ea pele 'me ea fetoha mochine o mocha o sebetsang hantle oa maqhubu ho finyella litlhoko tsa ho monya.Lisebelisoa tsa maqhubu li na le litlhoko tsa "tšesaane, tse bobebe, tse pharaletseng le tse matla".

Ntlafatso ea ts'ireletso ea motlakase le ts'ebetso ea lisebelisoa tse monyang e ipapisitse le litaba tsa ntho e monyang, ts'ebetso ea ntho e monyang le ho ts'oana hantle ha karoloana e monyang.Graphene ha e na sebopeho se ikhethileng sa 'mele feela le thepa e ntle ea mochini le motlakase, empa hape e na le thepa e ntle ea ho monya microwave.Ka mor'a hore e kopane le magnetic nanoparticles, ho ka fumanoa mofuta o mocha oa thepa e monyang, e nang le tahlehelo ea matla a khoheli le ea motlakase.'Me e na le litebello tse ntle tsa ts'ebeliso lefapheng la tšireletso ea motlakase le ho monya ka microwave.

Bakeng sa lisebelisoa tse ka holimo tse tloaelehileng tsa ho sireletsa li-electromagnetic shielding nano powders, ka bobeli li fumaneha ke Hongwu Nano ka boleng bo tsitsitseng le bo botle.