Functionalising graphene for improvements in dispersion for enhancement of graphene reinforced composites

功能化石墨烯以改善分散性以增强石墨烯增强复合材料

• 批准号: 103718
• 金额: $ 4.97万
• 依托单位: 2-DTECH LIMITED
• 依托单位国家: 英国
• 项目类别: Collaborative R&D
• 财政年份: 2017
• 资助国家: 英国
• 起止时间: 2017 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=103718
• 关键词: Functionalising; graphene; improvements; dispersion; enhancement

A problem regularly faced when trying to incorporate graphene nanoplatelets (GNPs) into systems such as thermoplastics and epoxy resins is achieving a good dispersion of the GNPs within the target medium without re-agglomeration occurring which leads to poor and inconsistent final materials performance in the graphene composite systems. This, along with a lack of reliable materials characterisation are key barrier to adaptation of these materials in markets such as motorsport and construction. Functionalisation of GNPs can help improve the dispersion within systems, however the processes used to impart the functional groups upon the GNPs can damage the basal plane of the materials, thus decreasing materials performance in areas such as mechanical reinforcement and electrical conductivity. Here 2-DTech (2DT) will work closely with the National Physical Laboratory (NPL) to produce a range of functionalised GNPs via wet chemical and plasma approaches with an aim of improving GNP dispersion within target polymer systems. The expertise and instrumentation available at NPL will be used to determine that the correct functional groups are present within the final functionalised materials and that the basal planes remain defect free via a suite of high-end instrumentation and measurement techniques. This will allow for the development of optimised functionalised GNPs which will be incorporated into polymer systems and be tested to show consistent final performance, thus elevating two of the key barriers to adoption for these materials.

当试图将石墨烯纳米片（GNP）结合到诸如热塑性塑料和环氧树脂的系统中时经常面临的问题是实现GNP在目标介质内的良好分散，而不发生导致石墨烯复合材料系统中的最终材料性能差且不一致的再团聚。沿着的是缺乏可靠的材料特性，这是这些材料在赛车运动和建筑等市场中适应的关键障碍。GNP的官能化可以帮助改善系统内的分散，然而，用于在GNP上赋予官能团的方法可能会损坏材料的基面，从而降低材料在诸如机械增强和导电性等领域的性能。在这里，2-DTech（2DT）将与国家物理实验室（NPL）密切合作，通过湿化学和等离子体方法生产一系列功能化GNP，旨在改善GNP在目标聚合物系统中的分散性。NPL提供的专业知识和仪器将用于确定最终功能化材料中存在正确的官能团，并且通过一套高端仪器和测量技术，基面保持无缺陷。这将允许开发优化的功能化GNP，这些GNP将被纳入聚合物系统并进行测试以显示一致的最终性能，从而提高了这些材料采用的两个关键障碍。