Kugadzirira uye maitiro e polyimide firimu / graphene polymer zvinhu

Sekureva kwemishumo, nzira dzekugadzirira dze polyimide/graphene composite zvinhu zvinowanzo: mhinduro kusanganisa, in-situ polymerization uye kunyungudika kusanganisa.

(1) Mhinduro kusanganisa

Solution blending: Mushure mekusanganisa graphene uye graphene derivatives kuti zviparadzire mupolymer solution, uyezve kubvisa solvent, iyo inoenderana polymer nanocomposite zvinhu inogona kugadzirwa. Nekuti graphene ine inenge isina solubility, uye graphene inowirirana ne interlayer aggregation. Naizvozvo, vaongorori vakaunza organic inoshanda mapoka muchimiro chegraphene kuwedzera kunyungudika kwegraphene uye graphene zvinobva. Nekuti graphene oxide inonyungudika mumvura, inogona kusanganiswa zvakananga nemushonga wayo wecolloidal uye mvura-inonyungudika polymer aqueous solution. Mushure mekusanganisa, ultrasonic kurapwa uye kuumba maitiro, iyo yakagadzirwa polymer / graphene oxide composite zvinhu ine yakanakisa mechaniki zvivakwa. Mukugadzirira graphene oxide uye mvura-insoluble mapolymers kuburikidza nekubatanidza kugadzirira zvinhu zvinosanganiswa, iyo organic basa regraphene oxide iri kuwedzera kubatsira kuvandudza kunyungudika kwayo muorganic solvents uye kusanganiswa kwakasimba nemapolima.

(2) In-situ polymerization

Musiyano mukuru pakati pemhinduro yekubatanidza nzira uye in-situ polymerization nzira ndeyokuti maitiro epolymer synthesis uye kusanganiswa kwegraphene kana graphene zvinobva kunoitwa panguva imwe chete, uye cheni dzepolymer dzinoumbwa nepolymerization uye graphene kana graphene. zvinobva kune zvitarisiko zvakasiyana. Yakasimba covalent bond effect. Iyo polymer / graphene composite zvinhu yakawanikwa neiyi nzira ine yakasimba interface mhedzisiro, saka yayo generalization basa rakagadziridzwa zvakanyanya. Pakati pazvo, iyo polymer/graphene composite zvinhu zvakagadzirirwa nekushandisa naironi-6, polystyrene, epoxy resin, nezvimwewo sezvo iyo polymer matrix zvese zvakagadzirirwa ne-situ polymerization.

(3) Kunyunguduka kusanganiswa

Mukuita kwekunyungudika kusanganisa, iyo polymer/graphene inoumbwa zvinhu inogona kugadzirwa isina zvinonyungudutsa. Inongoda kusanganisa graphene kana graphene zvinobuda uye iyo polymer munzvimbo yakanyungudutswa pasi pemhedzisiro yekupisa kwepamusoro uye simba rekugera. Zvinonzi akasiyana mapolymers (akadai sepolyester uye polycarbonate, polyethylene 2,6-naphthalate)/functional graphene composite zvinhu zvakagadzirirwa nekunyungudika kusanganisa. Ndakaedzawo kunyungudutsa kusanganisa uye kusanganisa kwepolylactic acid/graphene uye polyethylene terephthalate/graphene zvinhu. Kunyangwe iyi nzira inogona kuona kugadzirira kwakakura kunyangwe kushanda kwayo kuri nyore, iyo graphene shiti yakatyoka nekuda kweiyo yakanyanya shear simba mhedzisiro panguva yekugadzirira.