Layer-by-Layer Printing of Photopolymers in 3D: How Weak is the Interface?

ABSTRACT: Additive manufacturing or, as also called, three-dimensional (3D) printing is considered as a game-changer in replacing traditional processing methods in numerous applications; yet, it has one intrinsic potential weakness related to bonding of layers formed during the printing process. Prior to finding solutions for improvement, a thorough quantitative understanding of the mechanical properties of the interface is needed. Here, a quantitative analysis of the nanomechanical properties in 3D printed photopolymers formed by digital light processing (DLP) stereolithography (SLA) is shown. Mapping of the contact Young's modulus across the layered structure is performed by atomic force microscopy (AFM) with a submicrometer resolution. The peakforce quantitative nanomechanical mapping (PF-QNM) mo

SUBMITTER: Gojzewski H 

PROVIDER: S-EPMC7033657 | biostudies-literature | 2020 Feb

REPOSITORIES: biostudies-literature