Collaborative Research: Wood Fiber Reinforced Polymers using Ring-Opening Polymers for Structural Applications

合作研究：使用开环聚合物的木纤维增强聚合物用于结构应用

• 批准号: 1161292
• 负责人: Joshua Otaigbe
• 金额: $ 18万
• 依托单位: University of Southern Mississippi
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2012
• 资助国家: 美国
• 起止时间: 2012-08-01 至 2016-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1161292&HistoricalAwards=false
• 关键词: Collaborative; Research; Wood; Fiber; Reinforced

The focus of this collaborative research project will be on the effectiveness of wood fibers to reinforce alternative plastics. A long-standing goal for research on natural-fiber composites has been to replace glass-fiber, reinforced plastics with natural-fiber composites. Natural fibers have excellent mechanical properties and should be able to replace glass-fiber applications in the built environment with a more sustainable material. Unfortunately, the transformation to natural fibers has been slow, in part due to an overemphasis of prior work on "exotic" fibers and on reinforcement of incompatible plastics. Wood fibers are being combined with a polyamide matrix, which has excellent mechanical properties and is likely to be compatible with wood fibers. The composites will be made via ring-opening polymerization of novel oligomeric cyclic amides. This approach avoids the high temperatures in polymer processing that can damage natural fibers. The composites will be characterized for mechanical and interfacial properties. Wood fibers are readily available in commercial wood pulp products. The effect of pulping process on composite properties will be evaluated. All wood-fiber composites will be compared to glass-fiber controls to verify their suitability as a replacement material.Global demand for glass-fiber, reinforced plastics is increasing, but those products are neither renewable nor sustainable. The development of wood-fiber, reinforced plastics will define a new, cost-effective, sustainable, bio-composite material. The deployment of wood-fiber, reinforced plastics would involve collaborations between the wood pulping and the plastics industries. Although the wood pulping industry is larger than the glass fibers industry, it is currently in decline. The introduction of wood-fiber, reinforced plastics could impact the future of this declining US industry and could impact society by providing more sustainable materials. The novel processing methods developed may also lead to new opportunities for using engineering polymers with bio-based materials. This project will train two graduate students in sustainable materials development. Oregon State University has recently transformed its undergraduate curriculum for wood science and engineering department into a "Renewable Materials Program." This project will involve undergraduate researchers, which will enhance an emerging program on sustainable materials. Oregon has many underrepresented forestry students and Southern Mississippi has a sizable minority student population. These students will benefit from training in the broad area of sustainable materials engineering.

该协作研究项目的重点将放在木纤维增强替代塑料方面的有效性上。 对天然纤维复合材料进行研究的长期目标是用天然纤维复合材料代替玻璃纤维，增强的塑料。天然纤维具有出色的机械性能，应该能够用更可持续的材料在建筑环境中替代玻璃纤维应用。不幸的是，对天然纤维的转变速度很慢，部分原因是对先前对“异国”纤维的工作过分强调以及对不兼容的塑料的增强。木纤维与聚酰胺基质结合使用，该基质具有出色的机械性能，并且可能与木纤维兼容。该复合材料将通过新型寡聚循环酰胺的环式开环聚合制成。这种方法避免了可能损害天然纤维的聚合物加工中的高温。该复合材料将以机械和界面特性为特征。木纤维在商用木浆产品中很容易获得。将评估制浆过程对复合特性的影响。所有木纤维复合材料都将与玻璃纤维控件进行比较，以验证其适用性作为替代材料。对玻璃纤维，增强塑料的需求正在增加，但这些产品既无法续签也不可持续。木纤维，增强塑料的开发将定义一种新的，具有成本效益的，可持续性的生物复合材料。木纤维，增强塑料的部署将涉及木制品与塑料工业之间的合作。尽管木制品工业大于玻璃纤维行业，但目前正在下降。引入木纤维，增强塑料可能会影响美国行业不断下降的未来，并可能通过提供更可持续的材料来影响社会。开发的新型加工方法还可能导致使用基于生物的材料的工程聚合物的新机会。该项目将培训两名可持续材料开发的研究生。俄勒冈州立大学最近将其木材科学和工程系的本科课程改造成“可再生材料计划”。 该项目将涉及本科研究人员，该研究人员将增强有关可持续材料的新兴计划。俄勒冈州拥有许多代表性不足的林业学生，密西西比州南部拥有相当大的少数学生人数。这些学生将受益于在可持续材料工程的广泛领域的培训中受益。