熔融微分3D打印制造MWCNTs/PLA可导电功能性制品

Melting Differential 3D Printer can Manufacture the MWCNTs/PLA Conductive Functional Products

3D打印技术发展已日趋成熟,其特殊的增材制造原理使得材料利用率极高,方便快捷的成型方法推动了3D技术的发展。但3D打印产品使用耗材单一、制品强度较弱、应用范围不广泛等缺点抑制了3D打印技术在传统塑料加工行业的应用。一种新型聚合物熔体微分3D打印设备,可使用碳纳米管(MWCNTs)/聚乳酸(PLA)复合材料制造可导电3D打印产品。结果表明:该复合材料(10%MWCNTs)导电制品导电率可达到1.6 S/m,且该复合材料具有优异的可打印性能;使用聚合物熔体微分3D打印机以纸片为基材打印制造简易电路图,该电路图在纸基板上附着力强;使用熔体微分3D打印机制作防静电托盘制品,SEM图像表明,该托盘制品层与层之间结合紧密,成型精度以及刚度均可符合使用要求。通过实验对比,验证了该新型聚合物熔体微分3D打印机对MWCNTs/PLA复合材料制备可导电制品具有可行性,且可为3D打印电路板及防静电制品提供理论基础和技术指导。

Traditional plastic process had been gradually affected by maturing 3D printing technology through its simple formation and effective material usage, etc. However, the shortcomings, involving limited infection material and lack of spread usage, inhihits the application of 3D printing technology in traditional plastic process. The new polymer melt differential 3D printing device, which made from MWCNTs/PLA composite material, probing better printing performance was presented. The results demonstrated that with better printable characteristic, the conductivity of compLex material could reach 1.6 S/m. The polymer meh differential 3D printing device was utilized to print simple circuit diagram on the paper. And it was found that this composite material of circuit diagram has a stronger adhesion on the paper substrates. Meanwhile, this polymer meh differential 3D printing device was used to print the anti-static tray product. Furthermore, the SEM images showed that the anti-static tray had the higher connection force between the layers and those could accurately meet the application requirement. In conclusion, the properties of the new type of polymer melt differential 31） printing device had been verified. And this technique could provide the theoretical basis and technical guidance for the further 3D printing.