Gaweł Anna, Kuciel Stanisław
Faculty of Materials Engineering and Physics, Institute of Materials Engineering, Tadeusz Kosciuszko Cracow University of Technology, Al. Jana Pawła II 37, 31-864 Cracow, Poland.
Polymers (Basel). 2020 Dec 20;12(12):3056. doi: 10.3390/polym12123056.
The aim of this study was to evaluate the changes in physical-mechanical properties of the samples manufactured by 3D printing technology with the addition of varying degrees of polylactide (PLA) infill (50, 70, 85 and 100%). Half of the samples were soaked in physiological saline. The material used for the study was neat PLA, which was examined in terms of hydrolytic degradation, crystallization, mechanical strength, variability of properties at elevated temperatures, and dissipation of mechanical energy depending on the performed treatment. A significant impact of the amount of infill on changeable mechanical properties, such as hydrolytic degradation and crystallization was observed. The FDM printing method allows for waste-free production of light weight unit products with constant specyfic strength.
本研究的目的是评估通过3D打印技术制造的样品在添加不同程度的聚乳酸（PLA）填充（50%、70%、85%和100%）时物理机械性能的变化。一半的样品浸泡在生理盐水中。用于该研究的材料是纯PLA，对其进行了水解降解、结晶、机械强度、高温下性能的变异性以及取决于所进行处理的机械能耗散方面的研究。观察到填充量对可变机械性能（如水解降解和结晶）有显著影响。熔融沉积成型（FDM）打印方法能够无废料生产具有恒定比强度的轻质单元产品。
