GOALI: Novel Low-Polluting Collagen-Alkali Silicate

该奖项是根据2009年美国复苏和再投资法案（公法111-5）资助的。该学术联络与工业（GOALI）奖的研究目标是设计一种低挥发性有机碳（VOC）核心粘合剂，由胶原蛋白-碱性硅酸盐混合物组成。 使用这些粘结剂可以在铸造工艺中节省能源和资金，同时减少对石油的依赖。 我们的目标是取代传统的石油基粘合剂，这会导致严重的挥发性有机碳污染。 胶原蛋白是三螺旋蛋白质结构，包括动物肌腱和兽皮;胶原蛋白具有钢的拉伸强度。 在铸造环境中，胶原蛋白释放的VOC污染物是酚醛树脂的15-25%;硅酸盐释放的VOC量可以忽略不计。 从初步结果可以看出，胶原-碱金属硅酸盐混合物共同有利地提供了良好的热完整性、高拉伸强度、良好的铸造质量和良好的落砂性能。 为了实现研究目标，我们将准备胶原碱硅酸盐粘结的核心与一系列的胶原硅酸盐比例，混合协议，和固化过程。 根据铸造标准，我们将评估这些相对于他们的抗铁水侵蚀;和他们的拉伸强度，硬度，落砂倾向，和热完整性。 此外，根据基本原理，我们将通过红外分析，核磁共振和电子显微镜来表征键合。 这些基本特征将指导胶原-碱性硅酸盐化学和加工方案，从而选择最有利的粘合剂系统。这项研究的预期益处将是基于新的指标开始变革性地重写粘合剂化学。 新的衡量标准是追求美国石油化工的独立性，以环境友好的制造业，同时从生物资源中设计可持续产品。 这项研究还将扩大粘合剂和氮化学的基础;对胶原蛋白和碱性硅酸盐的热效应;固化动力学;防水;以及环境和工业工程。除了这些重要的影响，GOALI项目团队还将在宾夕法尼亚州劳伦斯维尔的HMAC铸造厂进行这些胶原蛋白-碱性硅酸盐粘合剂的全面演示，为社区提供巨大的工业价值。

This award is funded under the American Recovery and Reinvestment Act of 2009 (Public Law 111-5). The research objective of this Grant Opportunity for Academic Liaison with Industry (GOALI) award is to devise a low volatile organic carbon (VOC) core binder that is comprised of a collagen-alkali silicate hybrid. The use of these binders can save energy and money in foundry processes, while diminishing their petroleum dependence. We aim to replace conventional petroleum-based binders, which cause significant volatile organic carbon pollution. Collagen is the triple-helical protein structure that comprises animal tendons and hides; and collagen has the tensile strength of steel. Collagen releases 15-25% as much VOC pollution as do phenolic urethanes in a foundry setting; and silicates release negligible amounts of VOCs. Together, collagen-alkali silicate hybrids favorably offer the promise of good thermal integrity, high tensile strength, good casting quality, and good shake-out, as discerned from preliminary results. To accomplish the research objectives, we will prepare collagen-alkali silicate bindered cores with an array of collagen-to-silicate proportions, mixing protocols, and curing processes. Per foundry criteria, we will appraise these relative to their resistance against molten iron erosion; and their tensile strength, hardness, shakeout propensity, and thermal integrity. Also, per fundamentals, we will characterize bonding by infrared analysis, nuclear magnetic resonance, and electron microscopy. These fundamental characterizations will steer the collagen-alkali silicate chemistry and processing protocol, so as to select the most favorable binder system.The expected benefits of this research will be to initiate a transformative rewriting of adhesives chemistry based on new metrics. The new metrics are to pursue US petrochemical independence with environmentally benign manufacturing, while devising sustainable products from bio-resources. This research will also expand fundamentals of adhesives and nitrogen chemistry; thermal effects on collagen and alkali silicates; curing kinetics; waterproofing; and environmental and industrial engineering. In addition to these important impacts this GOALI project team will conduct full-scale demonstrations of these collagen-alkali silicate binders at the HMAC-Lawrenceville, PA foundry, providing tremendous industrial value for the community.