Maitiro ekuvandudza kuita kwe polyimide firimu

Kuita kwepolyimide firimu kunonyanya kunetseka kune vatengi uye shamwari dzinoda kuishandisa. Kana tichida kusangana nezvido zvedu zvekushandisa, tinoda kunzwisisa zvakajeka nzira yekuvandudza kushanda kwefirimu yepolyimide. Mune zvinotevera, nyanzvi Mugadziri akapa sumo, ngatitarisei zvakadzama.

Polyimide firimu zvinhu zvine high heat resistance, corrosion resistance, mechanical properties, low dielectric properties, radiation resistance uye high processing properties, saka dzinoshandiswa zvakanyanya uye kufarirwa. Iyo ine zvakare yakakura kukosha kwekushandisa mundima yeaerospace.

Nekudaro, nekuda kwenzvimbo yakakosha yenzvimbo uye kusasimba kwepamusoro-tekinoroji yemagetsi zvikamu, static magetsi akonzera kukuvadzwa kukuru kumidziyo yekubhururuka uye zvigadzirwa zvemagetsi. Iko conductivity yefirimu yepolyimide pachayo yakaderera zvikuru, iyo inomisa kushandiswa kwayo mumhepo uye nzvimbo dzakasiyana-siyana mune zvakawanda. Nokudaro, kurapwa uye kugadziriswa kwezvinhu zve polyimide zvakaunzwa mberi.

Kubva payakagadziridzwa muna 2004, graphene yave kutarisisa kutenderera pasirese, uye yakanakisa conductivity yemagetsi, kupisa kwemafuta uye ma mechanika zvinhu zviri pakati pezvakanakisa. Graphene inogona kuvandudza conductivity uye kugadzikana kwekupisa kwezvinhu.

Kumwe kugadziridzwa kwesimbi dopant yakadonhedzwa mupolymer inoumbwa zvinhu inoda kuitiswa pane tembiricha yakakwira. Iyo yakanyanya tembiricha kuramba ye polyimide inogona kuve nechokwadi chekuora kwakajairwa uye kushandurwa kwesimbi dopant. Yakasiyana-siyana nzira dzekugadzira polyimide dzinogona kusiyanisa nzira dzedoping. Pamusoro pezvo, iyo yakakwira solubility ye polyamic acid mune yakasimba polar solvents inogona kubatsira inorganic zvinhu kuve zvirinani doped mu polyimide firimu.

Naizvozvo, mubepa rino, graphene inoiswa mu polyimide kugadzirisa iyo polyimide firimu, nekudaro inonatsiridza mashandiro efirimu repolyimide. Kana graphene ichibatanidzwa mune polyimide zvinhu, kupararira ndiyo yekutanga kufunga. Muchokwadi, kuparadzirwa kwezvinhu zvisingaite mune inorganic/polymer zvinhu kwakakosha zvakanyanya, uye kufanana kwekupararira kuchakanganisa kuita kweiyo yakagadzirirwa composite membrane. Mupepa iri, nzira yekubatanidzwa kwegraphene inotanga kudzidzwa, uye nzira iri nani yekusanganisa inotarisirwa. Zvadaro, kushanda kwemusanganiswa membrane kwakaedzwa uye kunoratidzwa. Zvinotarisirwa kuti kuwedzerwa kwegraphene kuchavandudza conductivity uye kupisa kwezvinhu zvefirimu ye polyimide.