Improvement in mechanical properties of three-dimensional printing parts made from natural polymers reinforced by acrylate resin for biomedical applications:a double infiltration approach

摘要

This study demonstrates that a double infiltration technique,when compared to traditional single infiltration,can increase the mechanical properties of natural polymers fabricated by three-dimensional printing using a water-based binder.Double infiltration decreases the water absorption and amount of water-soluble matter,and significantly increases flexural modulus and strength in wet conditions compared to single infiltration.These improvements can be related to the greater remaining load-bearing area and lower degree of plasticization of the structure.However,no improvements over single infiltration were observed for testing in dry conditions.