Nanotechnology and Nanoscience, İzmir Katip Çelebi University, İzmir, Turkey.
Sen Research Group, Department of Biochemistry, Faculty of Arts and Science, Dumlupınar University, Evliya Çelebi Campus, 43100, Kütahya, Turkey.
Sci Rep. 2020 Aug 6;10(1):13308. doi: 10.1038/s41598-020-70421-3.
Porous three-dimensional (3D) polyurethane-based biocomposites were produced utilizing diatomite and hydroxyapatite as fillers. Diatomite and Hydroxyapatite (HA) were utilized to reinforce the morphological, chemical, mechanical, and thermal properties of polyurethane foam (PUF). Diatomite and Hydroxyapatite were added into polyurethane at variable percentages 0, 1, 2, and 5. The mechanical properties of PUF were analyzed by the compression test. According to the compression test results, the compressive strength of the polyurethane foam is highest in the reinforced foam at 1% by weight hydroxyapatite compared to other reinforced PUFs. Scanning electron microscopy (SEM) images presented structural differences on foam by adding fillers. Functional groups of PUF were defined by Fourier Transform Infrared Spectroscopy (FTIR) and the thermal behavior of PUF was studied with Thermogravimetric Analysis (TGA). The obtained results revealed that PUF/HA biocomposites indicated higher thermal degradation than PUF/Diatomite biocomposites.
采用硅藻土和羟基磷灰石作为填料制备了多孔三维（3D）聚氨酯基生物复合材料。硅藻土和羟基磷灰石（HA）被用于增强聚氨酯泡沫（PUF）的形态、化学、机械和热性能。硅藻土和羟基磷灰石以 0、1、2 和 5 的不同百分比添加到聚氨酯中。通过压缩试验分析了 PUF 的力学性能。根据压缩试验结果，与其他增强 PUF 相比，重量百分比为 1%的羟基磷灰石增强的聚氨酯泡沫的抗压强度最高。扫描电子显微镜（SEM）图像显示了添加填料后泡沫的结构差异。傅里叶变换红外光谱（FTIR）确定了 PUF 的官能团，热重分析（TGA）研究了 PUF 的热行为。得到的结果表明，与 PUF/硅藻土生物复合材料相比，PUF/HA 生物复合材料表现出更高的热降解性。
