Characterization of In-Situ Structure Development During Processing of Semicrystalline Polymer Fibers

9629825舒尔茨这是材料研究部聚合物项目中GOALI倡议下的一项拨款。首席研究员Jerold Schultz博士(特拉华大学)和B.S.Hsiao博士(杜邦中心研究与开发)建议研究加工过程中原位聚合物结构的发展。这项研究的主要内容是使用同步辐射在纺纱和纺纱后过程中获得小角和广角X射线散射结果。这项研究将特别集中在结构形成的最早阶段，在这个阶段，最终控制纤维行为的结构被启动，并设定了剩下的转化过程。同步加速器的工作将在该国的NSLS和APS以及德国的DESY进行，使用一维和二维探测器，处理设备模拟在光束线上运行的工业实践。%这项研究利用GOALI倡议，为远程光纤研究焊接工业和学术人员和资源。这项研究的目的是利用最新可用的和高度合适的同步辐射X射线技术，获得有关基本纤维制造工艺的新知识。这些知识在今天是缺乏的，但对纤维行业未来的工艺和产品改进至关重要。此外，该项目将为研究生提供一个独特的机会，让他们将最先进的科学应用于大学/行业联合环境中与工业相关的问题。***

9629825 Schultz This is a grant under the GOALI initiative in the Polymer Program in the Division of Materials Research. The principal investigators, Dr. Jerold Schultz (University of Delaware) and Dr. B. S. Hsiao (DuPont Central Research and Development) are proposing to study the development of structure in polymers in situ during processing. Primary to this study is the use of synchrotron radiation to obtain small- and wide-angle x-ray scattering results during spinning and post-spinning processes. The research will focus especially on the earliest stages of structure formation, where the structure which ultimately controls fiber behavior is initiated and in which the course of the remainder of the transformation is set. The synchrotron work will be carried out at NSLS and APS in this country and at DESY in Germany, using one- and two-dimensional detectors, with processing apparatus which simulates industrial practice operating at the beamline. %%% This study utilizes the GOALI initiative to weld industrial and academic personnel and resources for long range fiber research. The objective of this study is to obtain new knowledge towards fundamental fiber manufacturing processes, using newly available and highly appropriate synchrotron X-ray techniques. Such knowledge is lacking today, but is crucial to future process and product improvement in the fiber industry. Additionally, the project will provide a unique opportunity for graduate students to apply state-of-the-art science to industrially relevant problems in a joint university/industry setting. ***