Tests of mechanical properties of semicrystalline and amorphous polymeric materials produced by 3D printing

Piotr Sikora,Adam Gnatowski,Rafał Gołębski,I Malujda,P Krawiec,M Berdychowski,J Górecki,K Talaśka,Ł Warguła,D Wilczyński,M Dudziak,D Wojtkowiak

doi:10.1051/matecconf/201925406003

Abstract

The article presents the results of tests of physical properties of samples from semi-crystalline and amorphous polymeric materials produced using 3D printing. Samples were produced using 3D printing technology on the SIGNAL -ATMAT printer. The following polymeric materials were used to make the samples: TPU thermoplastic polyurethane elastomer, ABS acrylonitrile-butadiene-styrene copolymer, Laywood, PET ethylene terephthalate, PLA poly (lactic acid). The materials were tested for their mechanical properties. The hardness was determined by the Shore method and the ball-pressing method. The tensile strength also was determined. The research samples were subjected to visual analysis on a Keyence microscope to analyze the breakthrough site.

Highlights

Elements of machines and devices made by 3D printing are used in various industry sectors, more often appearing in everyday use
Users of modern 3D printers can be satisfied by the latitude of made parts, thanks to ever more accurate application of subsequent layers of filament, they are able to get even narrow dimensional tolerances, as well as shape and position tolerances
Amorphous acrylonitrile-butadiene-styrene used in 3D printing technology is a material characterized by high strength, it works well on printing moving parts, has a high temperature resistance and an increased level of flexibility [4]

Summary

Introduction

Elements of machines and devices made by 3D printing are used in various industry sectors, more often appearing in everyday use. Among the tested materials used for 3D printing, the Laywood woodlike material has been mentioned, which has a characteristic dark brown color and emits resembling wood smell during the 3D printing process. It gives the elements the appearance of a fibreboard and behaves like wood it can be abraded or painting. The following materials were used for the tests: ABS, Laywood, PLA, PET, TPU [9]

Objectives

Methods

Conclusion