利用对苯二胺对氧化石墨烯进行氨基化，并通过维生素C绿色还原的方式制备了氨基化还原的氧化石墨烯（Aminated-Chemically Reduced Graphene oxide，NH₂-CRG）；再与均苯四甲酸酐和4，4-二氨基二苯醚以原位聚合的方式合成了氨基化还原氧化石墨烯/聚酰亚胺（NH₂-CRG/PI）复合材料薄膜。结果表明，所制备的复合材料薄膜在NH₂-CRG添加量为1.5%时，介电常数达到76，约为纯PI薄膜的30倍左右。复合薄膜的热稳定性较原有的聚酰亚胺薄膜也有一定提高。

Aminated-chemically reduced graphene oxide (NH₂-CRG) is prepared through amination of graphene oxide (GO) by p-phenylenediamine and further chemical reduction by L-ascorbic acid (LAA).Then NH₂-CRG/PI composite membrane with different mass ratios is synthesized via in-situ polymerization from NH₂-CRG,pyromellitic anhydride (PMDA) and 4,4-diaminodiphenyl ether (ODA).It is shown that the dielectric constant of 1.5 wt% NH₂-CRG/PI composite membrane can reach 76,which is around 30 times that of pure PI membrane.In addition,the thermal stability of the composite membrane is slightly enhanced on the basis of pure PI membrane.

张鹏图(1989-),男,硕士,讲师,研究方向为纳米/高分子复合材料的制备与表征,15554621218@163.com