Madej-Kiełbik Longina, Kośla Katarzyna, Zielińska Dorota, Chmal-Fudali Edyta, Maciejewska Magdalena
R&D Project Department, Institute of Security Technologies MORATEX, 3 M. Sklodowskiej-Curie Str., 90-505 Lodz, Poland.
Institute of Polymer and Dye Technology, Lodz University of Technology, 12/16 Stefanowskiego Str., 90-924 Lodz, Poland.
Polymers (Basel). 2019 Jul 30;11(8):1263. doi: 10.3390/polym11081263.
Currently, there is a wide range of materials for motorcyclists available on the market that have a significant ability to absorb impact energy. Understanding the aging processes of materials is crucial for guaranteeing the long-term durability and safety of a new product. For this reason, the effect of accelerated aging on the mechanical and structural properties of the multifunctional materials used in commercial protectors was analyzed. The accelerated aging considered in this study simulated 3 years of use under real conditions. Then, DMTA and FT-IR research, as well as impact tests, were carried out on the commercially available protectors for motorcyclists, before and after the accelerated aging processes. Structural analysis using FT-IR showed no significant changes in the structure of the polymers used for producing the protectors. The DMA test results are consistent with those obtained from the impact study. Both methods showed that the samples maintain their protective properties, after accelerated aging. All of the examined protectors show that an increase in force is transferred through the sample, after the accelerated aging processes, but they still provide protection, according to the ISO standard.
目前，市场上有各种各样供摩托车手使用的材料，这些材料具有显著的冲击能量吸收能力。了解材料的老化过程对于确保新产品的长期耐用性和安全性至关重要。因此，分析了加速老化对商用防护装备中使用的多功能材料的机械和结构性能的影响。本研究中考虑的加速老化模拟了实际条件下3年的使用情况。然后，在加速老化过程前后，对市售的摩托车手防护装备进行了动态热机械分析（DMTA）和傅里叶变换红外光谱（FT-IR）研究以及冲击测试。使用FT-IR进行的结构分析表明，用于生产防护装备的聚合物结构没有显著变化。动态热机械分析测试结果与冲击研究结果一致。两种方法都表明，加速老化后，样品仍保持其防护性能。所有检测的防护装备都表明，加速老化过程后，通过样品传递的力有所增加，但根据国际标准化组织（ISO）标准，它们仍然提供防护。
