SBIR Phase II: A High Strength and Durable Composite NanoWrap for Repair and Rehabilitation of Piping and Other Civil Infrastructure Systems

这项小型企业创新研究（SBIR）二期项目将继续开发、验证和全面测试一种新的纳米颗粒增强复合材料产品，用于管道和其他民用基础设施系统的修复和修复。该研究的总体目标是开发和演示一种复合系统，该系统可以用于修复管道，而不需要昂贵的，有时甚至是危险的管道部分的切割和修复，同时也符合交通部（DOT）的要求，使其成为永久修复而不是临时修复。为了满足这些要求，需要一种比现有系统具有更好的疲劳性能的复合包裹系统。一期试验结果表明，新型纳米颗粒增强复合修复体系的抗疲劳性能优于目前市场上传统的管道修复复合材料。第二阶段的具体目标是：1)验证第一阶段的初步结果；2)根据美国机械工程师协会（ASME） PCC-2的要求，扩展性能测试，为全面测试做准备；3)设计一台制造机器来生产新的复合材料产品；4)完成全面测试，以证明符合交通部的规定。该项目更广泛的影响/商业潜力将是通过开发设计寿命超过50年的高强度、抗疲劳和耐腐蚀管道修复系统，显著提高dot管制和工业管道的安全性，降低维修成本。从1988年到2008年，共发生6042起与管道损坏有关的“重大事件”，造成427人死亡，1805人受伤，财产损失总额达38亿美元。目前用于防止管道故障的复合修复产品经济，易于应用，可用于修复其他民用基础设施，如桥梁柱和桥墩。然而，目前用于管道的复合修复系统由于易受疲劳影响，只能作为临时修复，因此最终需要通过切断进行更换。开发一种具有永久性修复能力的复合包裹系统将对管道行业产生变革性的影响，即使该产品的市场份额相对较小，其商业潜力也将达到5000万至1亿美元。此外，随着现场维修能力的增强和成本的降低，管道公司可能会更加积极主动地实施复合材料维修计划，从而减少灾难性故障和事故的发生。

This Small Business Innovation Research (SBIR) Phase II project will continue the development, validation, and full-scale testing of a new patent-pending nanoparticle-reinforced composite product for the repair and rehabilitation of piping and other civil infrastructure systems. The overarching goal of the research is to develop and demonstrate a composite system that can be used to repair pipes without requiring expensive, and sometimes dangerous, cutout and repair of pipe sections, while also meeting Department of Transportation (DOT) requirements to qualify it as a permanent rather than temporary repair. In order to meet these requirements, a composite wrap system is needed with fatigue properties that are much better than current systems. Test results obtained in Phase I demonstrate that the fatigue resistance of our new nanoparticle-reinforced composite repair system outperforms traditional pipeline repair composite materials currently on the market. The specific goals of Phase II will be: 1) validation of initial results from Phase I; 2) extension of property testing to prepare for full-scale testing under American Society of Mechanical Engineers (ASME) PCC-2 requirements; 3) design of a manufacturing machine to produce the new composite product and 4) completion of full-scale testing to prove compliance with DOT regulations. The broader impact/commercial potential of this project will be to significantly improve the safety and reduce costs for repair of DOT-regulated and industrial pipelines through the development of a high-strength, fatigue- and corrosion-resistant pipe repair system with a design life over 50 years. There were 6,042 "significant incidents" related to pipeline damage from 1988 to 2008, resulting in 427 fatalities, 1,805 injuries and property damage totaling $3.8 billion. Composite repair products currently used to prevent pipeline failures are economical, easy to apply, and can be used to repair other civil infrastructures such as bridge columns and piers. However, current composite repair systems for pipelines qualify only as a temporary repair due to their susceptibility to fatigue, and therefore require eventual replacement via cut-out. Development of a composite wrap system that qualifies as a permanent repair would have a transformational impact on the pipeline industry, placing the commercial potential of this product at $50-100 million, even with a relatively small market share. In addition, with the availability of stronger and less expensive field repairs, pipeline companies are likely to become more proactive with their composite repair programs, resulting in an overall reduction in catastrophic failures and incidents.