Processing of Tensegrity-Inspired Nanocomposites

张拉整体启发的纳米复合材料的加工

• 批准号: 0800019
• 负责人: Meisha Shofner
• 金额: $ 30万
• 依托单位: Georgia Tech Research Corporation
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2008
• 资助国家: 美国
• 起止时间: 2008-05-01 至 2012-04-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0800019&HistoricalAwards=false
• 关键词: Processing; Tensegrity; Inspired; Nanocomposites

This research will lead to advanced, functional nanomaterials not seen previously and provide general guidelines for the design of nanocomposites at all concentration levels through a more complete understanding of the nanocomposite?s components (nanoparticle, interphase material, and matrix) and their associated networks. We are testing the hypothesis that processing protocols may produce tensegrity-inspired structures from polymer nanocomposite materials. Tensegrity structures are composed of isolated compression members connected by a tensile web, occurring in nature and engineering design. They have a unique combination of high mechanical properties, high resiliency, and low weight. In this research, these structures will be created from nanocomposites where nanoparticles will serve as the compression members, and the polymer will serve as the tensile web. The research activities will emphasize (1) understanding the impact of the processing steps (solution and melt) on the evolution of the microstructure with nanoparticle shape and concentration, (2) characterizing fully the interphase material in nanocomposites and use/adapt appropriate physical models to describe the effect of nanocomposite components on mechanical properties and (3) creating a tensegrity-inspired structure from nanocomposite materials.The broader impacts involve an integrated research and educational plan allowing interaction with a broad population of engineering and science students at the graduate, undergraduate, and high school levels. The investigator will continue her work with chemistry teachers at Mays High School in the Atlanta Public School System. This high school has a population consisting almost entirely of underrepresented students. Each year, the investigator and a teacher will work together on nanocomposite research leading to the development of inquiry-based learning modules.

这项研究将导致先进的，功能性纳米材料没有看到以前，并提供一般准则的纳米复合材料的设计在所有浓度水平，通过更完整的了解纳米复合材料？的组成部分（纳米粒子，界面材料和基质）和它们的相关网络。我们正在测试的假设，加工协议可能会产生张力整体启发结构的聚合物纳米复合材料。 张拉整体结构是由相互独立的受压构件通过受拉腹板连接而成的结构，在自然界和工程设计中普遍存在。它们具有高机械性能、高回弹性和低重量的独特组合。 在这项研究中，这些结构将由纳米复合材料制成，其中纳米颗粒将作为压缩构件，聚合物将作为拉伸网。 研究活动将强调（1）了解加工步骤的影响（溶液和熔体）对具有纳米颗粒形状和浓度的微结构的演变的影响，（2）充分表征纳米复合材料中的界面材料，并使用/调整适当的物理模型来描述纳米复合材料组分对机械性能的影响，以及（3）创建张拉整体-更广泛的影响涉及一个综合的研究和教育计划，允许与研究生，本科生和高中阶段的工程和科学学生进行广泛的互动。 调查人员将继续她的工作与化学教师在梅斯高中在亚特兰大公立学校系统。 这所高中的学生几乎全部是代表性不足的学生。 每年，研究人员和一名教师将共同致力于纳米复合材料的研究，从而开发基于探究的学习模块。