Effects of Lubricant and Toughening Agent on the Fluidity and Toughness of Poplar Powder-Reinforced Polylactic Acid 3D Printing Materials.

Qingfa Zhang,Xiaona Lin,Hongzhen Cai,Weiming Yi,Jibing Zhang,Andong Zhang

doi:10.3390/polym10090932

Abstract

Three dimensional (3D) printing materials were manufactured with polylactic acid (PLA) and poplar powder using the twin screw extruder and 3D printing consumables extruder. Lubricant (TPW604) and toughening agent polyolefin elastomer (POE) were utilized to improve the fluidity and toughness of the materials. 3D printing materials were tested by infrared spectroscopy, X-ray diffraction, melt flow rate, rheology behavior, impact and scanning electron microscope. The results show that the poplar powder could decrease impact strength of PLA, the same as TPW604. Unlike poplar powder, TPW604 can improve the fluidity of 3D printing materials. And POE can fill the voids formed by poplar powder in PLA, enhance interface compatibility between poplar powder and PLA, and effectively improve the fluidity and impact strength of 3D printing materials.

Highlights

In recent years, three dimensional (3D) printing technology has been developed rapidly in molding and manufacturing of materials and it received more and more attention all over the world because of its special advantages in the making of spatial stereoscopic models [1]
Spectra for the other six samples were similar to the neat polylactic acid (PLA), which means that almost all of the functional groups are contributed by PLA
New 3D printing materials were prepared with PLA and poplar powder. 3D

Summary

Introduction

Three dimensional (3D) printing technology has been developed rapidly in molding and manufacturing of materials and it received more and more attention all over the world because of its special advantages in the making of spatial stereoscopic models [1]. Compared with the industrial material reduction manufacturing, 3D printing technology separates production- manufacturing from large, complex, traditional industrial processes and has changed the manufacturing concepts, processing methods and management models of traditional industry. 3D printing technology has been widely used in aerospace, biomedical, architectural, foundry and other fields [2]. The application and development of 3D printing technology mainly depends on 3D printing materials. FDM is the most widely used in 3D printing technology. As one of the materials for FDM, the application of polylactic acid

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Conclusion