Amashanyarazi menshi yubushyuhe bwa plastike yerekana impano zidasanzwe mumashanyarazi ya transformateur, gukwirakwiza ibikoresho bya elegitoronike, insinga zidasanzwe, gupakira ibikoresho bya elegitoronike, kubumba amashyuza nizindi nzego kubikorwa byiza byo gutunganya, igiciro gito hamwe nubushuhe buhebuje.Amashanyarazi menshi yubushyuhe hamwe na graphene nkuwuzuza arashobora kuzuza ibisabwa byubucucike bukabije hamwe niterambere ryiteranirizo ryinshi mu micungire yumuriro ninganda za elegitoroniki.

Amashanyarazi asanzwe yubushyuhe yuzuye yuzuyemo ibyuma byinshi bitwara ubushyuhe cyangwa ibice byuzuza ibintu kugirango yuzuze kimwe ibikoresho bya polymer.Iyo ingano yuzuza igeze kurwego runaka, uwuzuza akora urunigi rumeze nkurusobe rusa na morphologie muri sisitemu, ni ukuvuga urunigi rwumuriro.Iyo icyerekezo cyerekezo cyuruhererekane rwubushyuhe buringaniye nubushyuhe bwo gutembera, ubushyuhe bwumuriro bwa sisitemu buratera imbere cyane.

Amashanyarazi yo hejuru yubushyuhe hamwe nakarubone nanomaterial graphenenkuwuzuza ashobora kuzuza ibisabwa byubucucike bukabije hamwe niterambere ryiteranirizo ryiterambere mugucunga amashyanyarazi ninganda za elegitoroniki.Kurugero, ubushyuhe bwumuriro wa polyamide isukuye 6 (PA6) ni 0.338 W / (m · K), iyo yuzuyemo alumina 50%, ubushyuhe bwumuriro bwibintu bikubye inshuro 1.57 nubwa PA6 yera;iyo wongeyeho 25% oxyde ya zinc yahinduwe, ubushyuhe bwumuriro wa compte burenze inshuro eshatu kurenza PA6 yera.Iyo 20% ya graphene nanosheet yongeyeho, ubushyuhe bwumuriro wa compte bugera kuri 4.11 W / (m • K), bwiyongereyeho inshuro zirenga 15 ugereranije na PA6 yera, byerekana imbaraga nini za graphene murwego rwo gucunga ubushyuhe.

1. Gutegura hamwe nubushyuhe bwumuriro wa graphene / polymer

Amashanyarazi ya graphene / polymer yibigize ntaho atandukaniye nuburyo bwo gutunganya mugutegura.Uburyo butandukanye bwo gutegura butanga itandukaniro mugutatanya, ibikorwa byimiterere nuburyo butandukanye bwuzuza muri matrix, kandi ibyo bintu bigena gukomera, imbaraga, gukomera no guhindagurika kwa compte.Kubijyanye nubushakashatsi bugezweho, kubijyanye na graphene / polymer, urugero rwo gukwirakwiza graphene hamwe nurwego rwo gukuramo amabati ya graphene birashobora kugenzurwa no kugenzura inkweto, ubushyuhe hamwe n’umuti wa polar.

2. Ibintu bigira ingaruka kumikorere ya graphene yuzuye plastike yumuriro mwinshi

2.1 Umubare wongeyeho Graphene

Muri plastike yumuriro mwinshi wuzuye graphene, uko ingano ya graphene yiyongera, urunigi rwumuyoboro wamashanyarazi rugenda ruba buhoro buhoro muri sisitemu, bitezimbere cyane ubushyuhe bwumuriro wibikoresho.

Iyo wize ubushyuhe bwumuriro wa epoxy resin (EP) ishingiye kuri graphene igizwe, usanga igipimo cyo kuzuza graphene (hafi ibice 4) gishobora kongera ubushyuhe bwumuriro wa EP inshuro 30 kugeza kuri 6.44.W / (m • K), mugihe gakondo yuzuza ubushyuhe bwumuriro bisaba 70% (agace kijwi) ryuzuza kugirango bigerweho.

2.2 Umubare wibice bya Graphene
Kuri graphene nyinshi, ubushakashatsi bwakozwe kuri 1-10 ya graphene bwerekanye ko mugihe umubare wa graphene wariyongereye uva kuri 2 ukagera kuri 4, ubushyuhe bwumuriro bwaragabanutse buva kuri 2 800 W / (m • K) bugera kuri 1300 W / (m • K ).Bikurikiraho ko ubushyuhe bwumuriro wa graphene bukunda kugabanuka hamwe no kwiyongera kwumubare.

Ibi ni ukubera ko graphene ya graphene izahuza hamwe nigihe, bizatera ubushyuhe bwumuriro kugabanuka.Muri icyo gihe, inenge ziri muri graphene hamwe n’imivurungano yinkombe bizagabanya ubushyuhe bwumuriro wa graphene.

2.3 Ubwoko bwa substrate
Ibice byingenzi bigize plastike yumuriro mwinshi harimo ibikoresho bya matrix hamwe nuwuzuza.Graphene niyo ihitamo ryiza kubuzuza kubera ubwiza bwayo bwiza bwumuriro.Ibice bitandukanye bya matrix bigira ingaruka kumashanyarazi.Polyamide (PA) ifite imiterere myiza yubukanishi, irwanya ubushyuhe, irwanya kwambara, coefficient de fraisse nkeya, kutagira flame nkeya, gutunganya byoroshye, bikwiriye kuzuza impinduka, kunoza imikorere no kwagura umurima wabisabye.

Ubushakashatsi bwerekanye ko iyo ingano yubunini bwa graphene ari 5%, ubushyuhe bwumuriro wa compte bwikubye inshuro 4 ugereranije nubwa polymer zisanzwe, kandi mugihe agace ka graphene kiyongereye kugera kuri 40%, ubushyuhe bwumuriro wa compte yiyongereyeho inshuro 20..

2.4 Gutegura no gukwirakwiza graphene muri matrix
Byagaragaye ko icyerekezo gihagaritse cya graphene gishobora kunoza ubushyuhe bwacyo.
Mubyongeyeho, ikwirakwizwa ryuzuza muri matrix naryo rigira ingaruka kumashanyarazi yumuriro wa compte.Iyo uwuzuza akwirakwijwe kimwe muri matrix hanyuma agakora urunigi rwumurongo uhuza ubushyuhe, ubushyuhe bwumuriro bwibintu byateye imbere cyane.

2.5 Kurwanya Imigaragarire hamwe nimbaraga zo guhuza imbaraga
Muri rusange, guhuza imiyoboro hagati yimiterere ya organic organique na matrice organic resin matrix irakennye, kandi ibice byuzuza byoroshye guhurizwa hamwe muri matrix, bigatuma bigorana gutandukana kimwe.Byongeye kandi, itandukaniro ryuburemere bwubuso hagati yingingo zuzuzanya zidafite umubiri na matrix bituma bigora hejuru yubuso bwuzuye bwuzuzwa na materique ya resin, bikavamo icyuho kiri hagati yibi byombi, bityo bikongerera ubushyuhe bwumuriro hagati yubushyuhe. ya polymer.

3. Umwanzuro
Amashanyarazi menshi yubushyuhe bwuzuye plastike yuzuyemo graphene afite ubushyuhe bwinshi nubushyuhe bwiza bwumuriro, kandi iterambere ryabo ni ryagutse cyane.Usibye ubushyuhe bwumuriro, graphene ifite indi mico myiza, nkimbaraga nyinshi, amashanyarazi menshi na optique, kandi ikoreshwa cyane mubikoresho bigendanwa, ikirere, na bateri nshya.

Hongwu Nano yakoze ubushakashatsi no guteza imbere nanomateriali kuva 2002, kandi ashingiye kuburambe bukuze hamwe nikoranabuhanga ryateye imbere, rishingiye ku isoko, Hongwu Nano itanga serivisi zinyuranye zabigize umwuga kugirango ziha abakoresha ibisubizo bitandukanye byumwuga kubikorwa bifatika bifatika.