Tokisetso le litšobotsi tsa polyimide filimi / graphene polymer thepa

Ho ea ka litlaleho, mekhoa ea ho lokisa ea polyimide / graphene composite thepa ka kakaretso: ho kopanya tharollo, in-situ polymerization le ho qhibiliha ho kopanya.

(1) Ho kopanya tharollo

Ho kopanya tharollo: Ka mor’a ho kopanya lihlahisoa tsa graphene le graphene ho li hasanya ka tharollo ea polymer, ebe o tlosa solvent, lisebelisoa tse tsamaellanang tsa polymer nanocomposite li ka lokisoa. Hobane graphene e batla e se na ho qhibiliha, ‘me graphene e na le monyetla oa ho kopanya li-interlayer. Ka hona, bafuputsi ba hlahisitse lihlopha tse sebetsang ka har’a sebopeho sa graphene ho eketsa ho qhibiliha ha lintho tse tsoang ho graphene le graphene. Hobane graphene oxide e qhibiliha ka metsing, e ka kopanngoa ka ho toba le motsoako oa eona oa colloidal le metsi a qhibilihang ke polymer aqueous solution. Ka mor’a ho kopanya, phekolo ea ultrasonic le mekhoa ea ho bōpa, thepa e lokiselitsoeng ea polymer / graphene oxide composite e na le thepa e babatsehang ea mochine. Ha ho etsoa graphene oxide le li-polymers tse sa tsitsang metsi ka ho kopanya ho lokisa lisebelisoa tse kopantsoeng, tšebetso ea organic ea graphene oxide e ntse e thusa haholo ho ntlafatsa ho qhibiliha ha eona ho li-solvents le motsoako o matla le li-polymers.

(2) In-situ polymerization

Phapang e kholo lipakeng tsa mokhoa oa ho kopanya tharollo le mokhoa oa in-situ polymerization ke hore ts’ebetso ea polymer synthesis le ho tsoakoa ha graphene kapa graphene derivatives li etsoa ka nako e le ‘ngoe, le liketane tsa polymer tse entsoeng ke polymerization le graphene kapa graphene. li-derivatives li na le ponahalo e fapaneng. Matla a covalent bond effect. Lisebelisoa tse entsoeng ka polymer / graphene tse fumanoang ka mokhoa ona li na le phello e matla ea sebopeho, kahoo mosebetsi oa eona oa kakaretso o ntlafalitsoe haholo. Har’a tsona, lisebelisoa tse entsoeng ka polymer / graphene tse entsoeng ka ho sebelisa nylon-6, polystyrene, epoxy resin, joalo-joalo kaha matrix a polymer kaofela a lokiselitsoe ke in-situ polymerization.

(3) Ho kopanya ho qhibiliha

Nakong ea ho kopanya ho qhibiliha, lisebelisoa tse entsoeng ka polymer / graphene li ka lokisoa ntle le li-solvents. E hloka feela ho kopanya lihlahisoa tsa graphene kapa graphene le polymer sebakeng se qhibilihisitsoeng tlas’a phello ea mocheso o phahameng le matla a phahameng a ho kuta. Ho tlalehoa hore mefuta e sa tšoaneng ea li-polymers (tse kang polyester le polycarbonate, polyethylene 2,6-naphthalate) / lisebelisoa tse sebetsang tsa graphene tse entsoeng li lokisitsoe ka ho kopanya ho qhibiliha. Ke ile ka boela ka leka ho qhibiliha ho kopanya le ho kopanya polylactic acid / graphene le polyethylene terephthalate / graphene thepa. Le hoja mokhoa ona o ka hlokomela litokisetso tse kholo ho sa tsotellehe ts’ebetso ea eona e bonolo, letlapa la graphene le robehile ka lebaka la matla a phahameng a ho kuta nakong ea ho lokisetsa.