Ovsik Martin, Stanek Michal, Bednarik Martin
Faculty of Technology, Tomas Bata University in Zlin, Vavreckova 5669, 760 01 Zlín, Czech Republic.
Materials (Basel). 2023 Mar 16;16(6):2391. doi: 10.3390/ma16062391.
Nowadays, technical practice puts emphasis on improving selected material properties of polymers which could lead to new applications. Material properties can be modified in numerous ways, among which is radiation treatment. This study looks into the influence of beta radiation on several properties of polyamide 6, e.g., indentation hardness, modulus and creep. Main changeable parameters were the concentration of triallyl isocyanurate (TAIC), which promotes cross-linking, and intensity of radiation. The concentration was in the range from 2 to 6 wt.%, while the radiation dose was 0, 66, 99 and 132 kGy. The treated materials were measured for indentation hardness, modulus and creep. Degree of cross-linking was verified by thermo-mechanical analysis (TMA), while degradation processes was investigated by Fourier-transform infrared spectroscopy (FTIR). The results indicate that electron radiation positively affects the tested material properties. The best results were seen in polyamide with 6 wt.% of TAIC, which demonstrated a 38% improvement in mechanical properties after exposure to 132 kGy. This improvement in properties affects the final parts and their application (e.g., in the automotive industry-engine parts; in electrical engineering-insulation of wires and cables; and in industry-pipes for underfloor heating, etc.).
如今，技术实践着重于改善聚合物的特定材料性能，这可能会带来新的应用。材料性能可以通过多种方式进行改性，其中包括辐射处理。本研究探讨了β辐射对聚酰胺6的多种性能的影响，例如压痕硬度、模量和蠕变。主要可变参数是促进交联的三烯丙基异氰脲酸酯（TAIC）的浓度以及辐射强度。浓度范围为2至6 wt.%，而辐射剂量为0、66、99和132 kGy。对处理后的材料进行压痕硬度、模量和蠕变测量。通过热机械分析（TMA）验证交联度，同时通过傅里叶变换红外光谱（FTIR）研究降解过程。结果表明，电子辐射对测试的材料性能有积极影响。在含有6 wt.% TAIC的聚酰胺中观察到最佳结果，在暴露于132 kGy后，其机械性能提高了38%。性能的这种改善影响最终部件及其应用（例如，在汽车工业中用于发动机部件；在电气工程中用于电线电缆绝缘；以及在工业中用于地板下加热管道等）。
