Kunyangwe graphene ichiwanzodaidzwa kunzi "panacea", hazvirambike kuti ine yakanakisa yekuona, yemagetsi uye michina zvivakwa, ndosaka indasitiri ichida kuparadzira graphene se nanofiller mumapolymer kana inorganic matrice.Kunyangwe isina mhedzisiro ye "kushandura dombo kuita goridhe", inogona zvakare kuvandudza chikamu chekuita kwematrix mukati meimwe nhanho uye kuwedzera mashandisirwo ayo.

Parizvino, zvakajairika graphene composite zvinhu zvinogona kunyanya kukamurwa kuita polymer-yakavakirwa uye ceramic-yakavakirwa.Kune zvimwe zvidzidzo pane yekutanga.

Epoxy resin (EP), seanowanzo shandiswa resin matrix, ine yakanakisa adhesion properties, mechanical simba, heat resistance uye dielectric properties, asi ine nhamba huru ye epoxy groups mushure mekurapa, uye crosslinking density yakawandisa, saka inowanikwa. zvigadzirwa hazvina brittle uye zvine hurombo hwekuramba, magetsi uye kupisa conductivity.Graphene ndicho chinhu chakaomesesa pasirese uye chine yakanakisa magetsi neanopisa conductivity.Naizvozvo, iyo inoumbwa zvinhu yakagadzirwa nekubatanidza graphene uye EP ine zvakanakira zvese uye ine yakanaka yekushandisa kukosha.

     Nano Grapheneine nzvimbo yakakura yepamusoro, uye kupararira kwema molecular-level ye graphene inogona kuumba yakasimba interface ne polymer.Mapoka anoshanda senge hydroxyl mapoka uye maitiro ekugadzira anoshandura graphene kuita yakaunyana.Aya nanoscale irregularities anosimudzira kudyidzana pakati pegraphene uye polymer cheni.Pamusoro peiyo functionalized graphene ine hydroxyl, carboxyl uye mamwe makemikari mapoka, ayo anogona kuumba akasimba ehydrogen zvisungo ane polar polima senge polymethyl methacrylate.Graphene ine yakasarudzika-maviri-dimensional chimiro uye akawanda akanakisa zvivakwa, uye ine yakakura yekushandisa mukana mukuvandudza iyo inopisa, yemagetsi uye mechaniki zvivakwa zveEP.

1. Graphene mu epoxy resins - kuvandudza electromagnetic properties

Graphene ine yakanakisa magetsi conductivity uye electromagnetic zvivakwa, uye ine hunhu hweyakaderera dosage uye kushanda kwakanyanya.Iyo inogona kuita conductive modifier ye epoxy resin EP.Vatsvakurudzi vakaunza pamusoro-yakagadziriswa GO muEP ne-situ thermal polymerization.Izvo zvikamu zvakakwana zvezvinoenderana neGO / EP composites (zvakadai sema mechanical, magetsi uye thermal properties, nezvimwewo) zvakagadziridzwa zvakanyanya, uye magetsi emagetsi akawedzerwa ne 6.5 kurongeka kwehukuru.

Modified graphene inosanganiswa ne epoxy resin, ichiwedzera 2% yegraphene yakagadziridzwa, iyo modulus yekuchengetedza epoxy composite zvinhu inowedzera ne113%, ichiwedzera 4%, simba rinowedzera ne38%.Kupokana kweiyo yakachena EP resin ndeye 10 ^ 17 ohm.cm, uye kushorwa kunodonha ne6.5 mirairo yehukuru mushure mekuwedzera graphene oxide.

2. Kushandiswa kwegraphene mu epoxy resin - thermal conductivity

Kuwedzerakabhoni nanotubes(CNTs)uye graphene kune epoxy resin, kana uchiwedzera 20 % CNTs uye 20% GNPs, thermal conductivity yezvinhu zvinoumbwa zvinogona kusvika 7.3W/mK.

3. Kushandiswa kwegraphene mu epoxy resin - flame retardancy

Pakuwedzera 5 wt% organic functionalized graphene oxide, kukosha kwemurazvo wemoto kwakawedzera ne23.7%, uye pakuwedzera 5 wt%, kwakawedzera ne43.9%.

Graphene ine hunhu hwekusimba kwakanyanya, kugadzikana kwedimensional uye kuoma.Semugadziriso we epoxy resin EP, inogona kuvandudza zvakanyanya ma mechanic zvimiro zvezvakaumbwa zvinhu, uye kukunda huwandu hukuru hweakajairwa inorganic mafirita uye yakaderera gadziriso kunyatsoshanda uye kumwe kukanganisa.Vatsvakurudzi vakashandisa kemikari yakagadziridzwa GO/EP nanocomposites.Kana w(GO) = 0.0375%, kusimba kwesimba uye kuomarara kwezviumbwa zvinowirirana zvakawedzera ne48.3% uye 1185.2% zvichiteerana.Masayendisiti akadzidza kuchinja kwekugadzirisa kwekudzivirira kuneta uye kuoma kweGO / EP system: apo w (GO) = 0.1%, iyo tensile modulus yemusanganiswa yakawedzera inenge 12%;apo w(GO) = 1.0%, The flexural stiffness uye simba remubatanidzwa wakawedzerwa ne12% uye 23%, maererano.