Ko da yake graphene sau da yawa ana kiransa "panacea", ba za a iya musanta cewa yana da kyawawan kaddarorin gani, lantarki da na inji, wanda shine dalilin da ya sa masana'antar ke da sha'awar watsar da graphene azaman nanofiller a cikin polymers ko inorganic matrice.Ko da yake ba shi da tasirin almara na "juya dutse zuwa zinariya", kuma yana iya inganta wani ɓangare na aikin matrix a cikin wani kewayon da kuma fadada kewayon aikace-aikacensa.
A halin yanzu, kayan haɗin gwiwar graphene gama gari ana iya raba su zuwa tushen polymer da tushen yumbu.Akwai ƙarin karatu a kan tsohon.
Epoxy guduro (EP), kamar yadda aka saba amfani da guduro matrix, yana da kyau kwarai mannewa Properties, inji ƙarfi, zafi juriya da dielectric Properties, amma ya ƙunshi babban adadin epoxy kungiyoyin bayan curing, da crosslinking yawa ne ma high, don haka samu. Samfuran ba su da ƙarfi kuma suna da juriya mara ƙarfi, wutar lantarki da yanayin zafi.Graphene shine abu mafi wuya a duniya kuma yana da kyakkyawan ƙarfin lantarki da yanayin zafi.Sabili da haka, kayan haɗin da aka yi ta hanyar haɗawa da graphene da EP yana da fa'idodin duka biyu kuma yana da ƙimar aikace-aikacen mai kyau.
Nano Grapheneyana da babban yanki mai girma, kuma rarrabuwar matakin matakin kwayoyin halitta na graphene na iya samar da ƙaƙƙarfan mu'amala tare da polymer.Ƙungiyoyin aiki irin su ƙungiyoyin hydroxyl da tsarin samarwa za su juya graphene zuwa wani yanayi mara kyau.Waɗannan rashin daidaituwa na nanoscale suna haɓaka hulɗa tsakanin graphene da sarƙoƙi na polymer.Fuskar graphene mai aiki yana ƙunshe da hydroxyl, carboxyl da sauran ƙungiyoyin sinadarai, waɗanda za su iya samar da haɗin gwiwar hydrogen mai ƙarfi tare da polar polar kamar polymethyl methacrylate.Graphene yana da tsari na musamman mai nau'i biyu da kyawawan kaddarorin da yawa, kuma yana da babban yuwuwar aikace-aikacen inganta yanayin thermal, electromagnetic da injuna na EP.
1. Graphene a cikin resins epoxy - inganta kayan aikin lantarki
Graphene yana da kyawawan halayen lantarki da kaddarorin lantarki, kuma yana da halaye na ƙananan sashi da ingantaccen inganci.Yana da yuwuwar gyare-gyaren gudanarwa don resin epoxy EP.Masu binciken sun gabatar da GO da aka yi amfani da su a cikin EP ta hanyar polymerization na cikin-wuri.Abubuwan da suka dace na abubuwan haɗin GO / EP masu dacewa (kamar inji, lantarki da kayan zafi, da dai sauransu) sun inganta sosai, kuma an ƙara yawan wutar lantarki ta hanyar 6.5 na girma.
graphene da aka canza tare da resin epoxy, yana ƙara 2% na graphene da aka gyara, ma'aunin ajiya na kayan hadewar epoxy yana ƙaruwa da 113%, yana ƙara 4%, ƙarfin yana ƙaruwa da 38%.Juriya na resin EP mai tsabta shine 10 ^ 17 ohm.cm, kuma juriya ta sauke ta 6.5 umarni na girma bayan ƙara graphene oxide.
2. Aikace-aikacen graphene a cikin resin epoxy - halayen thermal
Ƙaracarbon nanotubes (CNTs)da graphene zuwa resin epoxy, lokacin da aka ƙara 20% CNTs da 20% GNPs, haɓakar thermal conductivity na kayan haɗin gwiwar na iya kaiwa 7.3W/mK.
3. Aikace-aikacen graphene a cikin resin epoxy - jinkirin harshen wuta
Lokacin ƙara 5 wt% Organic functionalized graphene oxide, ƙimar retardant na harshen wuta ya karu da 23.7%, kuma lokacin ƙara 5 wt%, ya karu da 43.9%.
Graphene yana da halaye na ingantacciyar rigidity, kwanciyar hankali da ƙarfi.A matsayin mai gyara na epoxy guduro EP, zai iya inganta ingantattun kayan aikin injiniyoyi na kayan hadewa, da shawo kan babban adadin talakawan inorganic fillers da ƙarancin gyare-gyare da sauran gazawar.Masu binciken sun yi amfani da GO/EP nanocomposites da aka gyara ta hanyar sinadarai.Lokacin da w(GO) = 0.0375%, ƙarfin matsawa da taurin abubuwan da suka dace sun karu da 48.3% da 1185.2% bi da bi.Masana kimiyya sunyi nazarin tasirin gyare-gyare na juriya na gajiya da kuma taurin tsarin GO/EP: lokacin da w (GO) = 0.1%, ma'auni mai mahimmanci na haɗin gwiwar ya karu da kusan 12%;lokacin da w (GO) = 1.0%, Ƙaƙƙarfan ƙwanƙwasa da ƙarfin haɗin gwiwar ya karu da 12% da 23%, bi da bi.
Lokacin aikawa: Fabrairu-21-2022