Ukulungiswa kunye neempawu ze-polyimide film / graphene polymer material

Ngokweengxelo, iindlela zokulungiselela i-polyimide / graphene izinto ezihlanganisiweyo ngokuqhelekileyo: ukuxuba isisombululo, i-in-situ polymerization kunye nokudibanisa ukunyibilika.

(1) Ukudibanisa isisombululo

Isisombululo sokuxuba: Emva kokuxuba i-graphene kunye ne-graphene derivatives ukuze usasaze kwisisombululo se-polymer, uze ususe i-solvent, izinto ezihambelanayo ze-polymer nanocomposite zingalungiswa. Kuba igraphene phantse ayinakunyibilika, kwaye igraphene ithanda ukudityaniswa kwe interlayer. Ke ngoko, abaphandi baye bazisa amaqela asebenzayo ephilayo kwisakhiwo segraphene ukonyusa ukunyibilika kwegraphene kunye negraphene derivatives. Ngenxa yokuba i-graphene oxide i-soluble emanzini, inokudityaniswa ngokuthe ngqo nesisombululo sayo se-colloidal kunye nesisombululo se-polymer e-soluble emanzini. Emva kokuxuba, unyango lwe-ultrasonic kunye neenkqubo zokubumba, i-polymer elungiselelwe i-polymer / i-graphene oxide i-composite material ineempawu ezintle kakhulu zoomatshini. Ekulungiseleleni i-graphene oxide kunye neepolima ezinganyibilikiyo ngamanzi ngokuxubana ukulungiselela izinto ezixutyiweyo, umsebenzi we-organic of graphene oxide usanda kunceda ekuphuculeni ukunyibilika kwayo kwii-solvents eziphilayo kunye nokudibanisa okuqinileyo kunye neepolima.

(2) I-polymerization kwi-situ

Owona mahluko mkhulu phakathi kwendlela yokudibanisa isisombululo kunye nendlela ye-polymerization ye-in-situ kukuba inkqubo ye-polymer synthesis kunye nokuxuba i-graphene okanye i-graphene derivatives yenziwa ngaxeshanye, kunye namatyathanga e-polymer enziwe yi-polymerization kunye negraphene okanye igraphene. izinto eziphuma kuzo zinenkangeleko eyahlukileyo. Isiphumo esomeleleyo covalent bond. Izinto ezihlanganisiweyo zepolymer/graphene ezifunyenwe yile ndlela zinefuthe elinamandla kujongano, ngoko ke umsebenzi wayo owenziwe ngokubanzi uphuculwe kakhulu. Phakathi kwazo, izinto ezidibeneyo ze-polymer / graphene ezilungiselelwe ngokusebenzisa i-nylon-6, i-polystyrene, i-epoxy resin, njl njl njengoko i-polymer matrix zonke zilungiswe yi-in-situ polymerization.

(3) Ukudibanisa ukunyibilika

Kwinkqubo yokuxutywa kwe-melting, i-polymer / graphene composite material ingalungiswa ngaphandle kwe-solvents. Kufuneka kuphela ukuxuba i-graphene okanye i-graphene derivatives kunye ne-polymer kwimo etyhidiweyo phantsi kwefuthe lobushushu obuphezulu kunye namandla aphezulu okucheba. Kuxelwa ukuba iindidi zeepolymers (ezifana ne-polyester kunye ne-polycarbonate, i-polyethylene 2,6-naphthalate) / izinto ezisebenzayo ze-graphene ezidibeneyo zilungiselelwe ngokuxutywa kwe-melt. Ndiphinde ndazama ukudibanisa kunye nokuxutywa kwe-polylactic acid / graphene kunye ne-polyethylene terephthalate / graphene materials. Nangona le ndlela inokuqonda ukulungiswa komgangatho omkhulu nangona isebenza ngokulula, i-graphene sheet yaphukile ngenxa yempembelelo ephezulu yokucheba ngexesha lenkqubo yokulungiselela.