Lipolasetiki tse phahameng tse futhumatsang mocheso li bonts'a litalenta tse sa tloaelehang ho li-inductors tsa motlakase, phepelo ea mocheso oa karolo ea elektroniki, likhoele tse khethehileng, liphutheloana tsa elektroniki, lipitsa tsa mocheso le likarolo tse ling bakeng sa ts'ebetso ea tsona e ntle, theko e tlase le ts'ebetso e ntle ea mocheso.Lipolasetiki tse phahameng tsa mocheso tse nang le graphene joalo ka li-filler li ka fihlela litlhoko tsa kholo e phahameng le nts'etsopele ea kopano e phahameng ea taolo ea mocheso le indasteri ea elektroniki.

Li-plastiki tse tloaelehileng tsa mocheso li tlatsitsoe haholo ka tšepe e tsamaisang mocheso o phahameng kapa likaroloana tsa li-inorganic filler ho tlatsa ka mokhoa o ts'oanang thepa ea matrix ea polymer.Ha palo ea li-filler e fihla boemong bo itseng, filler e etsa morphology e kang ketane le ea marang-rang tsamaisong, ke hore, ketane ea marang-rang e tsamaisang mocheso.Ha tataiso ea tataiso ea liketane tsena tsa marang-rang tse tsamaisang mocheso li bapa le tataiso ea phallo ea mocheso, mokhoa oa ho tsamaisa mocheso oa sistimi o ntlafala haholo.

Li-plastic conductive tse phahameng tsa mocheso tse nang lecarbon nanomaterial graphenejoalo ka ha filler e ka fihlela litlhoko tsa kholo e phahameng le nts'etsopele ea kopano e phahameng ea taolo ea mocheso le indasteri ea elektroniki.Ka mohlala, conductivity ea mocheso oa polyamide 6 e hloekileng (PA6) ke 0.338 W / (m · K), ha e tletse 50% alumina, conductivity ea mocheso oa motsoako ke makhetlo a 1.57 a PA6 e hloekileng;ha o eketsa 25% ea zinc oxide e fetotsoeng, mocheso oa mocheso oa motsoako o phahame ka makhetlo a mararo ho feta oa PA6 e hloekileng.Ha 20% graphene nanosheet e eketsoa, ​​mocheso oa mocheso oa motsoako o fihla ho 4.11 W/(m•K), o eketsoang ka makhetlo a 15 ho feta PA6 e hloekileng, e bontšang bokhoni bo boholo ba graphene tšimong ea tsamaiso ea mocheso.

1. Tokisetso le conductivity ea mocheso oa li-composites tsa graphene / polymer

Thermal conductivity ea graphene / polymer composite e ke ke ea arohanngoa le maemo a ho sebetsa ha ho etsoa litokisetso.Mekhoa e fapaneng ea ho itokisa e etsa phapang pakeng tsa ho hasana, ts'ebetso ea sefahleho le sebopeho sa sebaka sa ho tlatsa ka har'a matrix, 'me lintlha tsena li etsa qeto ea ho tiea, matla, boima le ductility ea motsoako.Ho ea ka lipatlisiso tsa morao-rao, bakeng sa metsoako ea graphene / polymer, tekanyo ea ho hasana ha graphene le tekanyo ea ho ebola ha maqephe a graphene e ka laoloa ka ho laola ho kuta, mocheso le li-solvents tsa polar.

2. Lintlha tse amang ts'ebetso ea graphene li tletse li-plastiki tsa conductivity tse phahameng tsa mocheso

2.1 Keketso ea palo ea Graphene

Ka polasetiki e phahameng ea mocheso oa mocheso o tletseng graphene, ha palo ea graphene e ntse e eketseha, ketane ea marang-rang e futhumatsang e thehoa butle-butle tsamaisong, e leng ho ntlafatsang haholo mocheso oa mocheso oa thepa e kopantsoeng.

Ka ho ithuta ka mocheso oa mocheso oa metsoako ea epoxy resin (EP)-based graphene composite, ho fumanoa hore tekanyo ea ho tlatsa ea graphene (e ka bang 4 layers) e ka eketsa conductivity ea mocheso oa EP ka makhetlo a ka bang 30 ho isa ho 6.44.W/(m•K), ha li-filler tsa setso tse futhumatsang li hloka 70% (karolo ea molumo) ea setlamo ho fihlela phello ena.

2.2 Palo ea mekhahlelo ea Graphene
Bakeng sa multilayers graphene, boithuto bo mabapi le 1-10 layers of graphene e fumane hore ha palo ea graphene layer e eketsoa ho tloha ho 2 ho isa ho 4, conductivity ea mocheso e fokotsehile ho tloha 2 800 W/(m•K) ho isa 1300 W/(m•K) ).Ho latela hore conductivity ea mocheso oa graphene e atisa ho fokotseha ka ho eketseha ha palo ea lihlopha.

Sena ke hobane graphene ea multilayer e tla kopana le nako, e leng se tla etsa hore conductivity ea mocheso e fokotsehe.Ka nako e ts'oanang, bofokoli ba graphene le bothata ba bohale bo tla fokotsa mocheso oa mocheso oa graphene.

2.3 Mefuta ea substrate
Likarolo tse ka sehloohong tsa li-plastiki tsa conductivity tse phahameng tsa mocheso li kenyelletsa lisebelisoa tsa matrix le li-fillers.Graphene ke khetho e ntle ka ho fetisisa bakeng sa li-fillers ka lebaka la ts'ebetso ea eona e ntle ea mocheso. Mefuta e fapaneng ea matrix e ama conductivity ea mocheso.Polyamide (PA) e na le thepa e ntle ea mochini, ho hanyetsa mocheso, ho hanyetsa ho apara, ho fokotseha ho fokolang, ho fokotsa mollo o itseng, ho sebetsa habonolo, ho loketse ho tlatsa phetoho, ho ntlafatsa ts'ebetso ea eona le ho atolosa tšimo ea kopo.

Phuputso e fumane hore ha karolo ea molumo oa graphene e le 5%, conductivity ea mocheso ea motsoako e phahame ka makhetlo a 4 ho feta ea polymer e tloaelehileng, 'me ha karoloana ea molumo oa graphene e eketseha ho 40%, conductivity ea mocheso oa motsoako. e eketseha ka makhetlo a 20..

2.4 Tokisetso le kabo ea graphene ka matrix
Ho fumanoe hore graphene stacking e otlolohileng e ka ntlafatsa conductivity ea eona ea mocheso.
Ho phaella moo, ho ajoa ha filler ka matrix ho boetse ho ama mocheso oa mocheso oa motsoako.Ha filler e qhalakantsoeng ka mokhoa o ts'oanang ka har'a matrix 'me e theha ketane ea marang-rang ea thermally conductive, conductivity ea mocheso oa motsoako o ntlafatsoa haholo.

2.5 Tšireletso ea sefahleho le matla a ho kopanya ha sehokelo
Ka kakaretso, tšebelisano ea sefahleho lipakeng tsa likaroloana tsa inorganic filler le organic resin matrix ha e ntle, 'me likaroloana tsa ho tlatsa li hokahanngoa habonolo ka har'a matrix, e leng ho etsang hore ho be thata ho theha phallo e ts'oanang.Ho phaella moo, phapang pakeng tsa tsitsipano ea holim'a metsi pakeng tsa likaroloana tsa inorganic filler le matrix e etsa hore ho be thata hore bokaholimo ba likaroloana tsa ho tlatsa li kolobisoe ke matrix ea resin, e leng se etsang hore ho be le voids ho interface pakeng tsa tse peli, kahoo ho eketsa ho hanyetsa mocheso oa sefahleho. ea motsoako oa polymer.

3. Qetello
Li-plastic conductivity tse phahameng tsa mocheso tse tlatsitsoeng ka graphene li na le conductivity e phahameng ea mocheso le botsitso bo botle ba mocheso, 'me litebello tsa tsona tsa tsoelo-pele li pharaletse haholo.Ntle le mocheso oa mocheso, graphene e na le lisebelisoa tse ling tse babatsehang, tse kang matla a phahameng, lisebelisoa tse phahameng tsa motlakase le tsa optical, 'me e sebelisoa haholo lisebelisoa tsa mohala, sefofane le libeteri tse ncha tsa matla.

Hongwu Nano esale e etsa lipatlisiso le ho nts'etsapele li-nanomaterials ho tloha 2002, 'me e ipapisitse le boiphihlelo bo holileng le thekenoloji e tsoetseng pele, e shebaneng le' maraka, Hongwu Nano e fana ka lits'ebeletso tse fapaneng tse ikhethileng ho fa basebelisi litharollo tse fapaneng tsa profeshenale bakeng sa lits'ebetso tse sebetsang hantle.