U.S-Korea, U.S.-Federal Republic of Germany Cooperative Research: Hollow and C-Shape Carbon Fiber from Pitch and itsApplication to CFRC Composite Materials

该提案要求资金允许丹尼·D博士。伊迪， 克莱姆森高级工程纤维实验室联合主任 大学，追求博士李宝星，化学教授 工程，忠南国立大学，泰全，韩国，博士。 Erich Fitzer，化学技术研究所所长， 德国联邦共和国卡尔斯鲁厄大学，为期 24个月，中空和C形的合作研究计划 沥青碳纤维及其对碳纤维的适用性 增强复合材料（CFRC）。 在这项研究中，A 商业中间相前体将被挤出成非圆形 具有更高强度和应变失效比的纤维 比目前的圆形商用碳纤维更好。 初步研究显示， 这些非圆形纤维的特性取决于 纤维形状、挤出速度、纤维尺寸和 中间相的组成。 在这个研究项目中， 前体将在忠南国立大学生产， 卡尔斯鲁厄大学。 化学性质和分子 中间相材料的重量分布将在 克莱姆森大学以及由韩国和德国研究 组 韩国研究所现有设备， 化学技术，靠近忠南大学，将被用来 测量的官能团和芳香特性的 中间相样品，而流变学分析将在 克莱姆森大学 碳纤维和塑料的复合结构正在被 越来越多地用于飞机和汽车应用 因为它们的强度重量比比 金属合金可用。 许多飞机机翼结构 目前用碳/环氧复合材料制造，而 汽车制造商目前正在测试碳复合材料 用于板簧和螺旋弹簧，驱动轴， 车身框架和车身侧板。 成功完成本 项目可提供行业上级增强纤维 由低成本原材料制造。 这是一个独特 该项目将带来美国的研究优势/专业知识， 韩国和德国的机构/科学家承担的问题， 共同利益和潜在利益。 私家侦探们 受人尊敬的科学家们成功地合作， 过去 该项目与《公约》的目标有关， 美国--大韩民国和美国-德国联邦共和国 合作科学计划，旨在提高 这些国家的科学家和工程师之间的合作 通过交流科学信息、思想、技能， 技术，并通过在共同问题上的合作， 效益 该项目将增加一个国际合作社 Edie博士在NSF资助号ENG-8710385下的研究。

This proposal requests funds to permit Dr. Danny D. Edie, Co-Director, Advanced Engineering Fibers Laboratory, Clemson University, to pursue with Dr. Bosung Rhee, Professor of Chemical Engineering, Chungnam National University, Taejon, Korea, and Dr. Erich Fitzer, Director, Institute for Chemical Technology, Universitat Karlsruhe, Federal Republic of Germany, for a period of 24 months, a program of cooperative research on hollow and c-shape carbon fiber from pitch and its applicability to carbon fiber reinforced composite (CFRC) materials. In this research, a commercial mesophase precursor will be extruded into non-circular fibers which have a higher strength and strain-to-failure ratio than present round commercial carbon fibers. Initial studies show that the properties of these non-circular fibers depend on the fiber shape, the extrusion velocity, the fiber size, and the composition of the mesophase. In this research project, mesophase precursors will be produced at Chungnam National University and Universitat Karlsruhe. The chemical nature and the molecular weight distribution of the mesophase materials will be analyzed at Clemson University as well as by the Korean and German research groups. Equipment available at the Korea Research Institute for Chemical Technology, near Chungnam University, will be used to measure the functional groups and aromatic character of the mesophase samples, while rheology analyses will be carried out at Clemson University. Composite structures of carbon fibers and plastic are being increasingly utilized in aircraft and automotive applications because their strength-to-weight ratio is greater than the best metal alloys available. Many aircraft wing structures are currently fabricated with carbon/epoxy composite material, while automobile manufacturers are presently testing composites of carbon fibers and plastics for use in leaf and coil springs, drive shafts, body frames and body side panels. Successful completion of this project could offer industry superior reinforcing fibers manufactured from a low cost raw material. This is a unique project which will bring the research strengths/expertise of U.S., Korean, and German institutions/scientists to bear on a problem of mutual interest and potential benefit. The PI's are highly respected scientists who have collaborated successfully in the past. This project is relevant to the objectives of the U.S.-Republic of Korea and U.S.-Federal Republic of Germany Cooperative Science Programs which seek to increase the level of cooperation between scientists and engineers of these countries through the exchange of scientific information, ideas, skills, and techniques and through collaboration on problems of mutual benefit. This project will add an international cooperative dimension to Dr. Edie's research under NSF Grant No. ENG-8710385.