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每周分享：Highly Electrically Conductive Nanocomposites Based on PolymerInfused Graphene Sponges

今天給大家分享的是2014年3月份 《Scientific Reports》上發(fā)表的一篇名為：Highly Electrically Conductive Nanocomposites Based on PolymerInfused Graphene Sponges

文章摘要如下：

Conductive polymer composites require a threedimensional 3D network to impart electrical conductivity. A general method that is applicable to most polymers for achieving a desirable graphene 3D network is still a challenge. We have developed a facile technique to fabricate highly electrical conductive composite using vacuumassisted infusion of epoxy into graphene sponge GS scaffold. Macroscopic GSs were synthesized from graphene oxide solution by a hydrothermal method combined with freeze drying. The GSepoxy composites prepared display consistent isotropic electrical conductivity around 1Sm, and it is found to be close to that of the pristine GS. Compared with neat epoxy, GSepoxy has a 12ordersofmagnitude increase in electrical conductivity, attributed to the compactly interconnected graphene network constructed in the polymer matrix. This method can be extended to other materials to fabricate highly conductive composites for practical applications such as electronic devices, sensors, actuators, and electromagnetic shielding.

該文章中材料表征采用的是美國麥克儀器3Flex

詳情可參考下面鏈接：

http://www.nature.com/srep/2014/140411/srep04652/full/srep04652.html