| 3D打印用聚丙烯复合材料的制备及性能研究 |
| Preparation and properties of polypropylene composite for 3D printing |
| 投稿时间：2017-01-22 修订日期：2017-01-22 |
| DOI： |
| 中文关键词: 聚丙烯 3D打印 熔融沉积法 收缩率 |
| 英文关键词: PP 3D printing Fused deposition modeling Shrinkage rate |
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| 中文摘要: |
| 熔融沉积法（FDM）是目前应用最广泛的3D打印技术，但是可用于FDM法的3D打印材料太少。本文通过碳酸钙（CaCO3）与滑石粉1:1混合，与聚丙烯（PP）熔融共混改性，制备可用于FDM打印的PP材料。研究填料加量对3D打印样品的力学性能和微观结构的影响。3D打印样品的力学测试表明，随着填料含量增多，3D打印制品的力学性能下降；扫描电镜结果填料的加入显著降低了PP的收缩率，样品内部纤维之间无空隙。当CaCO3和滑石粉各加20%时，3D打印的PP制品性能最好。 |
| 英文摘要: |
| Fused deposition modeling (FDM) technology is currently the most widely available 3D printing platform，but there are few 3D print materials available for the FDM. In this research, CaCO3 and talcum powder were mixed in equal proportionally, and then were blended with PP compounds to develop a material for FDM. The effects of filler loading on the mechanical properties and microstructure of 3D printed specimens were investigated. The mechanical properties of the printed specimens decreased with the increase of the filler content. As the filler content increased, the warping phenomenon disappeared during the printing process, and the SEM results showed that there was no gap between the fibers in the printed samples, indicating that the filler addition decreased the PP shrinkage. When the CaCO3 and talcum powder contents were both 20% in mass ratio, 3D printing products were best. |
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