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: 1161305
• 负责人: John Nairn
• 金额: $ 18.61万
• 依托单位: Oregon State University
• 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=1161305&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.

这一合作研究项目的重点将放在木纤维增强替代塑料的有效性上。研究天然纤维复合材料的一个长期目标是用天然纤维复合材料取代玻璃纤维增强塑料。天然纤维具有优异的机械性能，应该能够用更可持续的材料取代玻璃纤维在建筑环境中的应用。不幸的是，向天然纤维的转变一直很缓慢，部分原因是之前的工作过于强调“奇异”纤维和不相容塑料的增强。木纤维与聚酰胺基质结合在一起，聚酰胺基质具有优异的机械性能，很可能与木纤维兼容。这种复合材料将通过新型低聚环酰胺的开环聚合来制备。这种方法避免了聚合物加工过程中可能损害天然纤维的高温。将对复合材料的力学性能和界面性能进行表征。木纤维在商业木浆产品中随处可见。将评估制浆工艺对复合材料性能的影响。所有木纤维复合材料都将与玻璃纤维对照进行比较，以验证它们作为替代材料的适用性。全球对玻璃纤维增强塑料的需求正在增加，但这些产品既不可再生，也不可持续。木纤维增强塑料的发展将定义一种新的、经济有效的、可持续的生物复合材料。木纤维增强塑料的部署将涉及木浆和塑料行业之间的合作。尽管木浆行业比玻璃纤维行业规模更大，但目前正在下降。木纤维增强塑料的引入可能会影响这个衰落的美国行业的未来，并可能通过提供更可持续的材料来影响社会。开发的新的加工方法也可能为将工程聚合物与生物基材料一起使用带来新的机会。该项目将培训两名可持续材料开发方面的研究生。俄勒冈州立大学最近将其木材科学与工程系的本科课程转变为“可再生材料项目”。这个项目将包括本科生研究人员，这将加强一个关于可持续材料的新兴项目。俄勒冈州有许多代表不足的林业学生，南密西西比州有相当大的少数族裔学生人口。这些学生将从广泛的可持续材料工程领域的培训中受益。