DataVXACS Applied Materials & InterfacesPaper
journal article·2019-10-09Open access

In Situ Time-Resolved X-ray Scattering Study of Isotactic Polypropylene in Additive Manufacturing

Yuval Shmueli, Yu-Chung Lin, Sungsik Lee, Mikhail Zhernenkov, Rina Tannenbaum, Gad Marom, Miriam H. Rafailovich

ACS Applied Materials & Interfaces· Volume 11· Issue 40
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Source abstract

Abstract

Using a specially designed apparatus, which collects simultaneous temperature and X-ray scattering data, we performed in situ measurements of the filament during MatEx 3D printing. The data show that the MatEx 3D printing extrusion process provides sufficient shear to form shish-kebab structures, which initially nucleate at the filament surface and spread into the filament core. Time-resolved measurements show that the kebab component near the surface relaxes after deposition of the second filament and enhances chain diffusion across the interface. SEM images indicate near complete interfacial merging of the filaments, which results in excellent mechanical properties.
Source: openalex_inverted_index · Quality: baseline

Research context

Materials processing

OpenAlex topics: Additive Manufacturing and 3D Printing Technologies · Polymer crystallization and properties · Injection Molding Process and Properties

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Department of Materials Science and Chemical Engineering, Stony Brook University, Stony Brook, New York 11794, United States

X-ray Science Division, Argonne National Laboratory, Argonne, Illinois 60349, United States

National Synchrotron Light Source II, Brookhaven National Laboratory, Upton, New York 11973, United States

Casali Institute of Applied Chemistry, The Institute of Chemistry and the Center for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem, Jerusalem 91904, Israel

Funding

U.S. Department of Energy · National Institute of General Medical Sciences · Division of Materials Research

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