SGER: Cost-Effective Substitutes for Carbon Nanotubes and Other Nanocomposites

碳纳米管和其他纳米复合材料的高性价比替代品PI：Shing-Chung Wong，Co-Pi Bor Z Jang，北达科他州州立大学机械工程系Fargo，ND 58105电子邮件：Josh.Wong@ndsu.noak.edu电话：(58105)2331-8840传真：(701)231-8913摘要研究了一种使用纳米级石墨烯平板(NGP)的纳米复合材料的新设计。尽管碳纳米管(CNT)在操纵各种功能方面前景看好，但对于复合材料应用来说，其成本高得令人望而却步。我们没有试图发现成本低得多的碳纳米管工艺，而是利用大规模生产加工技术，研制出一种独特且具有成本效益的纳米级增强材料。如果成功，这些纳米材料将以低得多的成本获得，并可根据不同的最终用户需求进行定制。所提出的纳米复合材料与现有的炭黑、碳纳米管和纳米粘土增强材料明显不同。然而，它们可以用作功能填充物，如碳纳米管。初步数据显示，所得到的复合材料大大降低了从绝缘体到半导体的电转变的渗流阈值，与碳纳米管的渗流阈值具有竞争力。有趣的观察结果显示，熔体粘度降低，紫外线屏蔽能力提高。拟开展的研究包括NGP及其纳米复合材料的制备、表征和多尺度模拟。

Cost-Effective Substitutes for Carbon Nanotubes and Other NanocompositesPI: Shing-Chung Wong, Co-PI Bor Z Jang, Department of Mechanical EngineeringNorth Dakota State UniversityFargo, ND 58105 Email: Josh.Wong@ndsu.nodak.edu Tel: (701) 231-8840 Fax: (701) 231-8913AbstractA novel design for nanocomposites using nanoscaled graphene plates (NGPs) is investigated. Processes for carbon nanotube (CNT), despite its great promise in maneuvering varied functionality, are prohibitively expensive for composite applications. Instead of trying to discover much lower-cost processes for CNT, we make use of a mass production processing technology and formulate a distinct and cost-effective breed of nanoscale reinforcements. If successful, these nanomaterials will be available at much lower cost and tailorable for different end-use requirements. The proposed nanocomposites are distinctly different from existing carbon black, CNT and nanoclay reinforcements. Yet they can be used as functional fillers like CNTs. Preliminary data showed that the resulting composites dramatically reduced the percolation threshold, competitive with those of CNTs, for electrical transition from an insulator to a semiconductor. Interesting observations like reduced melt viscosity and improved UV shielding were made. The proposed research includes fabrication, characterization and multiscale modeling of NGPs and their nanocomposites.