Microlayer Polymeric Composites

微层聚合物复合材料

• 批准号: 0080013
• 负责人: Eric Baer
• 金额: $ 33万
• 依托单位: Case Western Reserve University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2000
• 资助国家: 美国
• 起止时间: 2000-07-01 至 2004-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0080013&HistoricalAwards=false
• 关键词: Microlayer; Polymeric; Composites

In this award, co-funded by The Polymers Program of the Division of Materials Research and the Mechanics & Structures of Materials Program of the Division for Civil and Mechanical Systems, novel layer-multiplying technology will be used to coextrude polymer sheet or film with hundreds or thousands of alternating layers of two or more materials. Layer thicknesses from the macroscale (tens of microns) to the microscale (several microns) and finally to the nanoscale (tens of nanometers) will be created. Motivated by the need for new processing technologies to develop the engineered microstructures of the future, a microlayer facility was created at CWRU. This facility includes a two-component process that produces sheet or film with alternating layers of polymer A and polymer B. A second system adds a third "tie" layer (polymer C) at the interface between each layer of A and B. A research program to explore the possibilities for new materials systems that can be realized with this versatile process is proposed. The proposed research intends to build on the most promising aspects of prior research and to innovate in new areas of opportunity. The specific aims focus on: (1) expanding the flexibility of the coextrusion process to create new anisotropic structures, (2) incorporating an inorganic component in novel ways to produce materials with designed electronic properties, (3) creating microlayered and nanolayered materials having enhanced barrier properties, and (4) probing the nature of polymer adhesion as related to fundamental aspects of polymer blending and alloying.%%%Ultimately, "microprocessing", as exemplified by microlayer and nanolayer coextrusion, can be the basis for creating "smart skins", film and sheet materials with radiation of specific wavelengths and additionally possess barrier characteristics or unusual electronic properties seems possible. The graduate and undergraduate students who participate in the research will have the opportunity to use a unique coextrusion process to design and realize materials systems that were not possible previously. Through written and oral communications, the results of this versatile technology will be translated to the field-at-large including the industrial sector.

该奖项由材料研究部的聚合物项目和土木与机械系统部的材料力学结构项目共同资助，新颖的层倍增技术将用于共挤出具有数百或数千个两种或更多种材料的交替层的聚合物片材或薄膜。 将产生从宏观尺度（几十微米）到微观尺度（几微米）并最终到纳米尺度（几十纳米）的层厚度。 由于需要新的加工技术来开发未来的工程微结构，CWRU创建了一个微层设施。 该设备包括双组分工艺，其生产具有聚合物A和聚合物B的交替层的片材或膜。 第二种系统在A和B的每一层之间的界面处添加第三“连接”层（聚合物C）。 提出了一个研究计划，以探索新的材料系统，可以实现这种多功能的过程的可能性。 拟议的研究旨在建立在先前研究的最有前途的方面，并在新的机会领域进行创新。 具体目标侧重于：（1）扩展共挤出工艺的灵活性以产生新的各向异性结构，（2）以新的方式引入无机组分以产生具有设计的电子性能的材料，（3）产生具有增强的阻隔性能的微层和纳米层材料，以及（4）探索与聚合物共混和合金化的基本方面相关的聚合物粘附的性质。最终，“微加工”，例如微层和纳米层共挤出，可以是创造“智能皮肤”的基础，薄膜和片材具有特定波长的辐射，并额外拥有屏障特性或不寻常的电子性能似乎是可能的。 参与研究的研究生和本科生将有机会使用独特的共挤出工艺来设计和实现以前不可能实现的材料系统。 通过书面和口头交流，这项多功能技术的成果将被转化为包括工业部门在内的整个领域。