Plastics na-ekpo ọkụ dị elu na-egosi talent pụrụ iche na inductor transformer, ikuku ọkụ ọkụ eletrik, eriri pụrụ iche, nkwakọ ngwaahịa eletrọnịkị, ite ọkụ na mpaghara ndị ọzọ maka arụmọrụ nhazi ha dị mma, ọnụ ala dị ala na ezigbo ọkụ ọkụ.Plastics conductivity dị elu nwere graphene dị ka ihe nkpuchi nwere ike imezu ihe achọrọ nke njupụta dị elu na mmepe mgbakọ dị elu na njikwa ọkụ na ụlọ ọrụ elektrọn.

A na-ejupụta rọba na-ekpo ọkụ nke ọma na metal dị elu nke na-eduzi okpomọkụ ma ọ bụ ihe ndị na-emepụta ihe na-emepụta ihe iji mejupụta ihe polymer matrix.Mgbe ọnụọgụ nke ndochi ruru ọkwa ụfọdụ, onye na-eme ihe na-eme ka agbụ-dị ka morphology na netwọk dị na sistemụ, ya bụ, eriri netwọk na-eduzi okpomọkụ.Mgbe nghazi nghazi nke agbụ ntupu na-eduzi okpomọkụ ndị a na-adaba na ntụgharị ọkụ ọkụ, a na-eme ka ọkụ ọkụ nke usoro ahụ dịkwuo mma.

Elu thermal conductive plastics nacarbon nanomaterial graphenedị ka ndochi nwere ike izute ihe ndị a chọrọ nke njupụta dị elu na mmepe mgbakọ dị elu na njikwa okpomọkụ na ụlọ ọrụ eletrik.Dị ka ihe atụ, thermal conductivity nke dị ọcha polyamide 6 (PA6) bụ 0.338 W / (m · K), mgbe jupụta na 50% alumina, thermal conductivity nke mejupụtara bụ 1.57 ugboro nke dị ọcha PA6;mgbe ị na-agbakwunye 25% zinc oxide gbanwetụrụ, nrụpụta thermal conductivity nke ihe mejupụtara dị okpukpu atọ karịa nke PA6 dị ọcha.Mgbe agbakwunyere nanosheet 20% graphene, nrụpụta thermal conductivity nke ihe mejupụtara ahụ ruru 4.11 W / (m•K), nke na-abawanye karịa ugboro 15 karịa PA6 dị ọcha, nke gosipụtara nnukwu ikike graphene na ngalaba njikwa ọkụ.

1. Nkwadebe na ikpo ọkụ ọkụ nke graphene / polymer composites

Igwe ọkụ ọkụ nke graphene / polymer composites enweghị ike ịdị iche na ọnọdụ nhazi na usoro nkwadebe.Ụzọ nkwadebe dị iche iche na-eme ka ihe dị iche iche dị na mgbasa ozi, ihe omume interfacial na nhazi oghere nke onye na-eme ihe na matrix, na ihe ndị a na-ekpebi isi ike, ike, ike na ductility nke ihe mejupụtara.N'ihe gbasara nyocha nke ugbu a, maka graphene / polymer composites, ogo nke mgbasa nke graphene na ogo nke peeling nke akwụkwọ graphene nwere ike ịchịkwa site na ịchịkwa shear, okpomọkụ na polar solvents.

2. Ihe ndị na-emetụta arụmọrụ nke graphene jupụtara na plastik dị elu nke thermal conductivity

2.1 Mgbakwunye ego nke Graphene

Na elu thermal conductivity plastic jupụtara graphene, ka ọnụ ọgụgụ nke graphene na-abawanye, thermal conductive netwọk yinye ji nwayọọ nwayọọ na-etolite na usoro, nke ukwuu mma thermal conductivity nke ihe mejupụtara.

Site n'ịmụ conductivity thermal conductivity nke epoxy resin (EP) -based graphene composites, achọpụtara na ndochi nke graphene (ihe dị ka 4 layers) nwere ike ịbawanye conductivity thermal nke EP ihe dị ka ugboro 30 ruo 6.44.W / (m•K), ebe ndị na-eme ihe na-ekpo ọkụ na-ekpo ọkụ na-achọ 70% (ọnụego ụda) nke ihe nkpuchi iji nweta mmetụta a.

2.2 Ọnụ ọgụgụ nke akwa akwa nke Graphene
Maka multilayers graphene, ọmụmụ na 1-10 layers nke graphene chọpụtara na mgbe ọnụ ọgụgụ nke graphene na-amụba site na 2 ruo 4, nkwụsị ọkụ na-ebelata site na 2 800 W / (m•K) ruo 1300 W / (m•K). ).Ọ na-esote na conductivity thermal nke graphene na-achọ ibelata na mmụba nke ọnụ ọgụgụ nke ọkwa.

Nke a bụ n'ihi na graphene multilayer ga-eme ka oge na-aga, nke ga-eme ka ọkụ eletrik na-ebelata.N'otu oge ahụ, ntụpọ dị na graphene na nsogbu nke ọnụ ga-ebelata okpomọkụ nke graphene.

2.3 Ụdị nke mkpụrụ
Ihe ndị bụ isi nke plastik conductivity thermal dị elu gụnyere ihe matriks na ihe ndochi.Graphene bụ nhọrọ kacha mma maka ndị na-ejuputa n'ihi na ọ na-eme ka ọ dị mma nke ọma.Polyamide (PA) nwere ihe eji arụ ọrụ dị mma, nguzogide okpomọkụ, na-eyi nguzogide, ọnụọgụ esemokwu dị ala, ụfọdụ ire ọkụ ọkụ, nhazi dị mfe, dabara adaba maka ndochi mgbanwe, iji meziwanye arụmọrụ ya na ịgbasa mpaghara ngwa.

Nnyocha ahụ chọpụtara na mgbe ụda olu nke graphene bụ 5%, conductivity thermal conductivity of the composite bụ 4 ugboro dị elu karịa nke polymer nkịtị, na mgbe ọnụ ọgụgụ nke graphene na-abawanye ruo 40%, okpomọkụ nke ihe mejupụtara ya. na-abawanye site na 20 ugboro..

2.4 Nhazi na nkesa graphene na matriks
Achọpụtala na nchịkọta ntụzịaka kwụ ọtọ nke graphene nwere ike imeziwanye arụmọrụ ọkụ ya.
Tụkwasị na nke ahụ, nkesa nke ndochi na matriks na-emetụtakwa conductivity thermal nke ihe mejupụtara.Mgbe ndochi ahụ na-agbasasị n'otu n'otu na matriks wee mepụta yinye netwọk na-eduzi thermally, a na-emeziwanye conductivity thermal conductivity of the composite.

2.5 Interface eguzogide na interface njikọ ike
N'ozuzu, ndakọrịta interfacial n'etiti inorganic filler particles na organic resin matrix adịghị mma, na ihe ndị na-ejuputa na-adị mfe agglomerated na matriks, na-eme ka o sie ike ịmepụta otu mgbasa ozi.Tụkwasị na nke ahụ, ọdịiche dị na esemokwu dị n'elu n'etiti ihe ndị na-emepụta ihe na-emepụta ihe na matriks na-eme ka o sie ike maka elu nke ihe ndị na-emepụta ihe na-eme ka ọ bụrụ na mmiri resin matriks na-eme ka ọ bụrụ ihe efu na interface n'etiti abụọ ahụ, si otú ahụ na-abawanye nkwụsị nke interfacial thermal resistance. nke ihe mejupụtara polymer.

3. Nkwubi okwu
Plastics eletrik dị elu nke jupụtara na graphene nwere ezigbo okpomọkụ na nkwụsi ike dị mma, na atụmanya mmepe ha dị nnọọ ukwuu.E wezụga conductivity thermal, graphene nwere ihe ndị ọzọ magburu onwe ya, dị ka ike dị elu, elu eletriki na ngwa anya, a na-ejikwa ya na ngwaọrụ mkpanaka, ikuku ikuku, na batrị ume ọhụrụ.

Hongwu Nano anọwo na-eme nchọpụta ma na-emepe emepe nanomaterials kemgbe 2002, na dabere na ahụmahụ tozuru okè na nkà na ụzụ dị elu, na-adabere na ahịa, Hongwu Nano na-enye ọrụ ahaziri iche ọkachamara dị iche iche iji nye ndị ọrụ ngwọta ọkachamara dị iche iche maka ngwa ngwa bara uru karị.