采用静电纺丝技术成功制备出聚间苯二甲酰间苯二胺(PMIA)/氧化石墨烯(GO)复合纳米纤维膜(PMIA/GO复合纳米纤维膜)。主要研究了GO的加入对PMIA/GO复合纳米纤维膜的结构、空气过滤性能和热稳定性的影响。实验结果表明,GO成功掺杂于PMIA/GO复合纳米纤维膜中,在GO的添加量为1.0%(wt,质量分数)时,PMIA/GO复合纳米纤维膜的空气过滤效率为97.79%,过滤压降为85.45Pa,玻璃化转变温度为299.8℃,具有较好的空气过滤性能和热稳定性。
Poly (meta-phenylene isophthalamide)/Graphene oxide composite nanofibrous membranes were prepared by electrospinning technique.The effects of graphene oxide sheets on the morphology,thermostability and filtration performance of membranes were investigated.The results indicated that GO sheets were successfully incorporated in PMIA matrix.When the loading amount of GO was 1.0wt%,the air filtration efficiency of membrane was 97.79% and the pressure drop was 85.45Pa,the glass transition temperature was 299.8℃.The membranes exhibited better filtration performance and thermostability compared with the pure membrane.
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基金资助
国家自然科学基金(51478452)
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