3B4_0157_BIO-MATERIAL POLYLACTIC ACID/POLY(BUTYLENE ADIPATE-CO-TEREPHTHALATE) BLEND DEVELOPMENT FOR EXTRUSION-BASED ADDITIVE MANUFACTURING

Main Article Content

Sisi Wang

Lode Daelemans

Rudinei Fiorio

Hesheng Xia

Jie Zhang

Maling Gou

Dagmar R. D'hooge

Karen De Clerck

Ludwig Cardon

Published Jul 10, 2019

Abstract

Bio-material polylactic acid and poly(butylene adipate-co-terephthalate) were blended to achieve increased ductility of the blend. Cloisite was added to improve the stiffness of the blend. The blends were made into filament suitable for extrusion-based additive manufacturing. Melt flow index of the filament and mechanical properties of the printed bars were tested. Preliminary results showed that the melt flow index increases significantly with cloisite and the modulus of polylactic acid/poly(butylene adipate-co-terephthalate) improved slightly. The notched impact strength of the blend increased with increasing content of cloisite, and it increased significantly after annealing, especially for blends without cloisite.


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