Lorero Isaac, Campo Mónica, Del Rosario Gilberto, López Félix Antonio, Prolongo Silvia González
Materials Science and Engineering Area, Rey Juan Carlos University, C/Tulipán s/n, 28933 Móstoles, Madrid, Spain.
Laboratory for Electron Microscopy, Centre for Technical Support (CAT), Rey Juan Carlos University, C/Tulipán s/n, 28933 Mostoles, Madrid, Spain.
Polymers (Basel). 2020 Jul 21;12(7):1619. doi: 10.3390/polym12071619.
A new manufacturing method of thermosetting resins reinforced with dense particles is developed in the present work. A rotary mold is used, avoiding the natural sedimentation of particles through applying centrifuge forces. A deep study of the sedimentation phenomenon is carried out in order to evaluate the main experimental parameters which influence the manufacturing of composite. The used reinforcement is zinc oxide (ZnO) obtained by a new recycling method from spent alkaline batteries. In order to compare the benefits, commercial ZnO nanoparticles are also analyzed. Recycled ZnO particles enhance the interaction of the epoxy matrix due to their inner moisture, allowing the manufacture of composites with relatively high ceramic content. Moreover, an increment in the glass transition temperature of the epoxy matrix and in the mechanical properties, such as its stiffness and hardness, is achieved.
在本研究中，开发了一种用致密颗粒增强热固性树脂的新制造方法。使用旋转模具，通过施加离心力避免颗粒自然沉降。对沉降现象进行了深入研究，以评估影响复合材料制造的主要实验参数。所用增强材料是通过一种从废旧碱性电池中回收的新方法获得的氧化锌（ZnO）。为了比较其优势，还对商用ZnO纳米颗粒进行了分析。回收的ZnO颗粒因其内部水分增强了环氧树脂基体的相互作用，从而能够制造出陶瓷含量相对较高的复合材料。此外，环氧树脂基体的玻璃化转变温度以及诸如刚度和硬度等机械性能都有所提高。
