Kukonzekera ndi mawonekedwe a polyimide filimu / graphene polima zakuthupi

Malinga ndi malipoti, njira zokonzekerera zida za polyimide/graphene zophatikizika nthawi zambiri ndi: kusakaniza kwazitsulo, kupangidwa kwa in-situ polymerization ndi kusakanikirana kosungunuka.

(1) Kusakanizika kwa mayankho

Kuthetsa kusanganikirana: Pambuyo kusakaniza zotumphukira graphene ndi graphene kumwazikana mu njira polima, ndiyeno kuchotsa zosungunulira, lolingana polima nanocomposite zipangizo akhoza kukonzekera. Chifukwa graphene pafupifupi alibe solubility, ndipo graphene sachedwa interlayer aggregation. Chifukwa chake, ofufuza adayambitsa magulu ogwiritsira ntchito organic mu kapangidwe ka graphene kuti awonjezere kusungunuka kwa zotumphukira za graphene ndi graphene. Chifukwa graphene oxide imasungunuka m’madzi, imatha kusakanikirana mwachindunji ndi njira yake ya colloidal ndi yankho lamadzi losungunuka la polima lamadzi. Pambuyo kusakaniza, akupanga mankhwala ndi akamaumba njira, okonzeka polima/graphene okusayidi gulu zakuthupi ali kwambiri mawotchi katundu. Pokonzekera graphene okusayidi ndi madzi-insoluble ma polima mwa kusanganikirana kukonzekera zipangizo gulu, ndi organic ntchito ya graphene okusayidi kwambiri zothandiza kusintha solubility ake mu zosungunulira organic ndi amphamvu kuphatikiza ndi ma polima.

(2) Polima mu situ

Kusiyana kwakukulu pakati pa njira yothetsera vutoli ndi njira yopangira ma polymerization ndi njira ya polima kaphatikizidwe ndi kusakanikirana kwa zotumphukira za graphene kapena graphene ikuchitika nthawi yomweyo, ndi unyolo wa polima wopangidwa ndi polymerization ndi graphene kapena graphene. zotumphukira zimakhala ndi mawonekedwe osiyanasiyana. Wamphamvu covalent chomangira zotsatira. Zinthu zophatikizika za polima / graphene zomwe zimapezedwa ndi njirayi zimakhala ndi mawonekedwe amphamvu kwambiri, motero ntchito yake yophatikizika yasinthidwa kwambiri. Pakati pawo, zinthu zopangidwa ndi polima/graphene zopangidwa ndi nayiloni-6, polystyrene, epoxy resin, etc. monga matrix a polima onse amakonzedwa ndi in-situ polymerization.

(3) Sungunulani kusakaniza

Pakusakanikirana kosungunuka, zinthu za polima / graphene zitha kukonzedwa popanda zosungunulira. Zimangofunika kusakaniza zotumphukira za graphene kapena graphene ndi polima mumkhalidwe wosungunuka chifukwa cha kutentha kwambiri komanso kumeta ubweya wambiri. Zimanenedwa kuti ma polima osiyanasiyana (monga poliyesitala ndi polycarbonate, polyethylene 2,6-naphthalate) / zogwirira ntchito zamagulu a graphene zakonzedwa ndi kusakanikirana kosungunuka. Ndinayesanso kusungunula kusakaniza ndi kusakaniza kwa polylactic acid/graphene ndi polyethylene terephthalate/graphene materials. Ngakhale njira iyi imatha kuzindikira kukonzekera kwakukulu ngakhale kuti ikugwira ntchito mosavuta, pepala la graphene lathyoledwa chifukwa cha kumeta ubweya wambiri panthawi yokonzekera.