Abstract In order to increase fuel supplies and reduce the gaseous emissions responsible for global warming, the production of biofuels has been stimulated. However, Biodiesel production leads to a huge amount of residues. The inappropriate discard of these residues generates an environmental problem. An important co-product of the transesterification process for biodiesel production is glycerol (also known as glycerin), representing 10% of the processed mass. Therefore, there are studies being carried out for the proper destination of glycerol. From these studies, one application of glycerol that deserves special attention is in the production of polymers. In this sense, this work studies the possibility of incorporating crude glycerol in epoxy adhesives, where fractions of 1.0%, 2.5%, 5.0% and 10.0% were added into epoxy. The tests carried out were tensile tests, adhesion tests and dynamic mechanical analysis (DMA), in order to evaluate the mechanical, adhesives and thermal behavior of the epoxy with these additions. In conclusion, small fractions of glycerol, like 1.0%, showed satisfactory results, in general, not decreased in adhesive properties; in opposite it leads to a small improvement with need more studies. With 2.5% and 5.0% of addition, more investigation is advisable. However, it was observed indications of improvement in properties, although less than those obtained with 1.0%. With 10.0% of addition there were sharp deterioration of properties, showing that use with 10.0% is not recommendable.

中文翻译：

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添加生物柴油生产过程中残留物的环氧粘合剂的性能研究

摘要 为了增加燃料供应并减少导致全球变暖的气体排放，已经刺激了生物燃料的生产。然而，生物柴油生产会产生大量的残留物。这些残留物的不当丢弃会产生环境问题。用于生物柴油生产的酯交换过程的一个重要副产品是甘油（也称为甘油），占加工质量的 10%。因此，正在对甘油的正确目的地进行研究。从这些研究中，甘油的一项值得特别关注的应用是在聚合物的生产中。从这个意义上说，这项工作研究了在环氧粘合剂中加入粗甘油的可能性，其中将 1.0%、2.5%、5.0% 和 10.0% 的分数添加到环氧树脂中。进行的测试包括拉伸测试、粘附测试和动态机械分析 (DMA)，以评估添加这些添加剂的环氧树脂的机械、粘合剂和热性能。总之，小部分甘油，如 1.0%，显示出令人满意的结果，一般不会降低粘合性能；相反，它会导致一个小的改进，需要更多的研究。添加 2.5% 和 5.0% 时，建议进行更多调查。然而，观察到性能有所改善的迹象，尽管少于 1.0% 所获得的。添加 10.0% 时，性能急剧恶化，表明不推荐使用 10.0%。添加这些添加剂后环氧树脂的粘合剂和热性能。总之，小部分甘油，如 1.0%，显示出令人满意的结果，一般不会降低粘合性能；相反，它会导致一个小的改进，需要更多的研究。添加 2.5% 和 5.0% 时，建议进行更多调查。然而，观察到性能有所改善的迹象，尽管少于 1.0% 所获得的。添加 10.0% 时，性能急剧恶化，表明不推荐使用 10.0%。添加这些添加剂后环氧树脂的粘合剂和热性能。总之，小部分甘油，如 1.0%，显示出令人满意的结果，一般不会降低粘合性能；相反，它会导致一个小的改进，需要更多的研究。添加 2.5% 和 5.0% 时，建议进行更多调查。然而，观察到性能有所改善的迹象，尽管少于 1.0% 所获得的。添加 10.0% 时，性能急剧恶化，表明不推荐使用 10.0%。观察到性能有改善的迹象，虽然少于 1.0% 的情况。添加 10.0% 时，性能急剧恶化，表明不推荐使用 10.0%。观察到性能有改善的迹象，虽然少于 1.0% 的情况。添加 10.0% 时，性能急剧下降，表明不推荐使用 10.0%。