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Indexed by:Journal Papers
Date of Publication:2019-08-15
Journal:新型炭材料
Included Journals:PKU、EI
Volume:34
Issue:4
Page Number:358-366
ISSN No.:1007-8827
Key Words:石墨烯纳米带气凝胶;Pickering乳液;超弹;可压缩性;压阻特性
Abstract:采用纳米碳管液相氧化开壁技术制备氧化石墨烯纳米带,以氧化石墨烯纳米带为前驱体,Pickering乳液为模板,聚醚胺(D400)为助剂和交联剂,制备孔径均匀可控的石墨烯纳米带气凝胶.采用光学显微镜、电子显微镜对乳液的形貌、粒径及气凝胶微观结构进行表征,研究乳液模板对石墨烯纳米带气凝胶结构和性质的影响.结果 表明,在乳液水油比为7∶1时,所得气凝胶具有均匀的孔结构、优异的可压缩性能,在应变50%的情况下,压缩1 000次后仍能恢复.当应变增大到95%时,循环50次依然能恢复原状.该气凝胶具有良好的压阻特性,气凝胶的电阻与形变之间有良好的线性对应关系,且与压缩速率无关.
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