聚乳酸/有机蒙脱土改性复合材料3D打印工艺的研究

Study on PLA/O-MMT Composite Material as 3D Printing Material

研究实验室自制PLA(聚乳酸)/O-MMT(有机蒙脱土)复合材料进行3D打印,调节打印速度、温度、填充度、层厚,探讨了这些打印工艺参数对PLA/O-MMT产品机械性能的影响。研究表明,随着填充度和层厚的增加,打印所需材料会更多,拉伸性能、冲击强度、断裂伸长率都会随着打印速度的增加而降低,而打印温度的升高越高,会使拉伸性能会变好,冲击强度会降低;填充密度和打印层厚的增加也会使拉伸性能更好,冲击强度增大。结果显示PLA/O-MMT复合材料材料作为3D打印材料,大大提高了产品的自身品质。

Three-dimensional printing of PLA/O-MMT composites made in laboratory was studied.The printing speed,temperature,filling degree and thickness were adjusted.The effects of these printing parameters on the mechanical properties of PLA/O-MMT products were discussed.The results showed that with the increase of filling degree and layer thickness,more materials were needed for printing,and the tensile properties,impact strength and elongation at break decreased with the increase of printing speed.The higher the printing temperature,the better the tensile properties and impact strength would be reduced.With the increase of filling density and printing layer thickness,the tensile properties would be improved and impact strength would be increased.The results showed that the quality of the product itself was greatly improved with PLA/O-MMT composite material as 3D printing material.