Graphene-aramid nanocomposite fibres via superacid co-processing.
Graphene-aramid nanocomposite fibres via superacid co-processing.
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DOI：
10.1039/c9cc04548a
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发表时间：
2019-09
影响因子：
4.9
通讯作者：
A. Roberts;Paul P. Kelly;Jennifer Bain;J. Morrison;I. Wimpenny;Mike Barrow;Robert T. Woodward;M. Gresil;C. Blanford;Sam Hay;J. Blaker;S. Yeates;N. Scrutton
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文献类型：
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作者：
A. Roberts;Paul P. Kelly;Jennifer Bain;J. Morrison;I. Wimpenny;Mike Barrow;Robert T. Woodward;M. Gresil;C. Blanford;Sam Hay;J. Blaker;S. Yeates;N. Scrutton
石墨烯-聚合物纳米复合材料的发展受到诸如石墨烯在液体介质中胶体稳定性差、石墨烯与主体聚合物之间的弱相互作用以及缺乏可扩展且经济的石墨烯合成路线等问题的阻碍。氯磺酸 (CSA) 可以自发分散石墨烯，无需机械搅拌、化学功能化或表面活性剂稳定，1 但与大多数聚合物和有机材料不相容。在这里，我们演示了如何将聚对苯二甲酰对苯二胺 (PPTA)（构成 Kevlar 的聚合物）与石墨烯在 CSA 中共加工，并湿纺成纳米复合纤维，同时石墨烯的聚集最少。
The development of graphene-polymer nanocomposite materials has been hindered by issues such as poor colloidal stability of graphene in liquid media, weak interactions between graphene and the host polymers as well as the lack of scalable and economical graphene synthesis routes. Chlorosulfonic acid (CSA) can spontaneously disperse graphene without the need for mechanical agitation, chemical functionalisation or surfactant stabilisation,1 however is incompatible with most polymers and organic materials. Here, we demonstrate how poly(p-phenylene terephthalamide) (PPTA) - the polymer which constitutes Kevlar - can be co-processed with graphene in CSA and wet-spun into nanocomposite fibres with minimal aggregation of graphene.