气凝胶是一种新型纳米级多孔网络结构材料,具有低密度、高孔隙率及高比表面积等优良特性。然而,较弱的力学性能在很大程度上限制了其在日常生活中的应用。通过冷冻铸造技术制备出GdOOH亚纳米线-聚脲复合气凝胶样品。并对气凝胶的微观结构、与水的接触角、机械性能进行表征,结果表明,制备的气凝胶样品不仅具有较好的力学性能,还展现出优异的疏水亲油性能。
Aerogel is a new type of nanoscale porous network structure material characterized by excellent performance such as low density,high porosity and high specific surface area.However,its weak mechanical properties limit its application in daily life to a large extent.GdOOH sub-nanowire-polyurea composite aerogel samples were prepared by freeze casting technology.The microstructure,water contact angle,and mechanical properties of aerogels were characterized.The results showed that the aerogel samples not only had good mechanical properties,but also exhibited excellent hydrophobic and lipophilic properties.
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基金资助
国家自然科学基金(52164013)
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