In a paper entitled"Preparation and Characterization of Poly(butylene succinate)/Polylactide Blends for Fused Deposition Modeling 3D Printing," A team of researchers discussed how they developed a new biodegradable material with high strength and toughness for FDM 3D printing. A series of poly(butylene succinate) (PBS)-based polymer materials was blended with PLA. The PLA is a popular and effective 3D printing material, which is brittle with extremely low breaking elongation, so it is necessary to develop better and more ductile materials. PBS is a semi-crystalline aliphatic polymer with excellent processing performance, thermal stability and biodegradation.It also has high toughness and relatively low melting points.
Mixing the two materials can combine their strengths and compensate for their weaknesses.The researchers prepared PBS/PLA with different components to verify their suitability for 3D printing. The rheological, thermal and mechanical properties of the blends were studied, and filamentous 3D printing was performed on different samples to evaluate their applicability to FDM 3D printing technology.Interlayer bond strength in the 3D printed specimens was also evaluated.
According to the researchers, all the blends showed excellent processing performance and could be extruded into single filaments with a diameter of 1.75.