SBIR/STTR PHASE I: Ceramic/Polymide Nanocomposite Possessing Controlled Coefficient of Thermal Expansion

SBIR/STTR 第一阶段：具有受控热膨胀系数的陶瓷/聚酰亚胺纳米复合材料

• 批准号: 0128662
• 负责人: James Paxton
• 金额: $ 10万
• 依托单位: PHYSITRON, INC.
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2002
• 资助国家: 美国
• 起止时间: 2002-01-01 至 2002-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0128662&HistoricalAwards=false
• 关键词: SBIR; STTR; PHASE; Ceramic; Polymide

This Small Business Innovation Research (SBIR) Phase I project will focus on development of unique ceramic/polyimide nanocomposite materials. It will demonstrate the ability to formulate a polyimide (or other polymer material) with a designed coefficient of thermal expansion (CTE) through the covalent incorporation of ceramic nanophase materials. The key tasks involve (1) sol-gel synthesis of ceramic nanospheres possessing a negative CTE (2) covalently bonding them into the backbone of thepolyimide through the use of bi-functional linker molecules and (3) evaluation of various doping levels of the ceramic nanospheres to determine optimum impact on the CTE of the composite material. In terms of commercial uses, polyimides have wide application as films inthe electronics, aerospace, and manufacturing industries where they are used for flexiblecircuitry, insulation materials, speaker cones, automotive switches, disk drives, and inmany other applications. A common problem in the design of these systems using polyimides is the inherently high CTE of these materials and to a certain extent poor thermal dimensional stability. The proposed effort seeks to provide an approach to resolve these issues.

这项小型企业创新研究（SBIR）I阶段项目将着重于开发独特的陶瓷/聚酰亚胺纳米复合材料。它将证明通过陶瓷纳米相材料共同掺入，使用设计的热膨胀系数（CTE）制定聚酰亚胺（或其他聚合物材料）的能力。关键任务涉及（1）具有负CTE的陶瓷纳米球的合成（2）通过使用双功能连接器分子共价将它们粘合到polyimide的主链中，并且（3）评估陶瓷纳米球的各种掺杂水平的评估，以确定对CTE的最佳影响。 在商业用途方面，聚酰亚胺在电子，航空航天和制造行业中具有广泛的应用，在这些膜中，它们用于柔韧性，绝缘材料，扬声器锥，汽车开关，磁盘驱动器和其他应用。这些系统使用聚酰亚胺设计的一个常见问题是这些材料的固有高度CTE，并且在一定程度上，热尺寸稳定性较差。拟议的努力旨在提供解决这些问题的方法。