SGER/GOALI Industrial Personnel in Academe: Foundry Cores with Reclaimed Sand and Novel Less-polluting Binders with UV Curing

这项探索性研究的目的是研究使用新型胶原蛋白基粘合剂减少铸造排放的可行性。相当一部分铸造排放发生在传统的酚醛树脂结合模芯释放挥发性有机化合物时，在高温下热解。型芯由硅砂颗粒制成，并通过粘合剂固定在一起。本文所研究的新型胶原蛋白粘合剂释放的VOC排放量为常规粘合剂的1/4至1/3，但它们没有那么坚韧。因此，浇注的熔融金属将更容易侵蚀胶原结合的芯。在这项研究中，紫外线照射的胶原蛋白将被用来试图韧化胶原蛋白的皮肤，并提高其能力的可行性，用于熔融过程。如果成功，该研究将提供对胶原蛋白的紫外线自由基反应及其在熔融金属加工过程中作为VOC粘合剂的基本了解。减少铸造厂排放的影响非常重要。提案团队预计，这项研究的成功实施可以使铸造厂的VOC污染减少40-60%。

The objective of this Small Grant for Exploratory Research is to investigate the feasibility of using a novel collagen protein-based binder to reduce foundry emissions. A considerable fraction of foundry emissions occurs when conventional phenolic urethanes that bind mold cores release VOCs when pyrolyzed at high temperatures. Cores are made of silica sand grains that are held together by binders. The new collagen protein binder examined herein releases 1/4 to 1/3 as much VOC emissions as do conventional binders but they are not as tough. Thus poured molten metal will more readily erode the collagen-binded cores. In this study, UV light irradiation of the collagen protein will be used in an attempt to toughen the collagen skin and improve its ability feasibility for use in molten processes. If successful, the research will provide fundamental understanding of UV radical reactions with collagen and its use as a binder of VOCs during molten metal processing. The impact of reduced emissions from foundries is enormously important. The proposal team anticipates that a successful implementation of this research can result in a 40-60% reduction in VOC pollution from foundries.