I-Corps: Leveraging Low-Polluting Foundry Core Binders toward Commercialization

I-Corps：利用低污染铸造型芯粘合剂实现商业化

• 批准号: 1338710
• 负责人: Fred Cannon
• 金额: $ 5万
• 依托单位: Pennsylvania State Univ University Park
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2013
• 资助国家: 美国
• 起止时间: 2013-05-01 至 2013-10-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1338710&HistoricalAwards=false
• 关键词: Corps; Leveraging; Low; Polluting; Foundry

This I-Corps activity will further develop low-emitting core binder systems toward foundry use. Conventional cores employ petroleum-based phenolic urethanes, which emit considerable volatile organic compound (VOC) pollution, whereas these novel binders release approximately 70-80% fewer VOCs. Work will address practical applications of how to quickly process these cores. The team will adapt these binder systems to the foundry's core-making machines. While preparing prototype cores with low-VOC binders, the team will appraise what are the effects when varying parameters that foundry personnel control - such as binder proportions, moisture, blow pressure, curing temperature, curing gas (air, steam, CO2), and cycle time. The variations of these practical parameters will be linked to fundamentals derived in prior NSF work: at what temperature do the functionalities of carboxyls and amino acids lose their binding strength; what blow pressures overcome the stickiness of moist sand grains; what core-making machine configurations are best-suited for these low-VOC binders. The I-Corp Team will offer transformative beneficial impact to society as the work transitions these low-polluting binders toward commercial acceptance. This has the potential create a healthier and more pleasant working environment for hard-working foundry personnel. With widespread use, these binders may have the ability to diminish outdoor pollution and increase sustainable use of first-generation biomaterials that are otherwise discarded.

I-Corps 的这项活动将进一步开发用于铸造用途的低排放核心粘合剂系统。传统芯材采用石油基酚醛聚氨酯，会排放大量挥发性有机化合物 (VOC) 污染，而这些新型粘合剂释放的 VOC 大约减少 70-80%。工作将解决如何快速处理这些核心的实际应用。该团队将使这些粘合剂系统适应铸造厂的制芯机器。在使用低 VOC 粘合剂制备原型芯时，团队将评估改变铸造人员控制的参数（例如粘合剂比例、湿度、吹塑压力、固化温度、固化气体（空气、蒸汽、CO2）和周期。这些实际参数的变化将与之前 NSF 工作中得出的基本原理联系起来：在什么温度下，羧基和氨基酸的官能团会失去其结合强度；在什么温度下，羧基和氨基酸的官能团会失去其结合强度？什么吹压力可以克服潮湿沙粒的粘性；哪些制芯机器配置最适合这些低挥发性有机化合物粘合剂。随着这些低污染粘合剂向商业接受的转变，I-Corp 团队将为社会带来变革性的有益影响。这有可能为辛勤工作的铸造人员创造一个更健康、更愉快的工作环境。随着广泛使用，这些粘合剂可能能够减少室外污染，并增加第一代生物材料的可持续利用，否则这些材料就会被丢弃。