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

doi:10.1021/acsami.9b12908

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

^*Corresponding author for this work

Institute of Chemistry

Research output: Contribution to journal › Article › peer-review

49 Scopus citations

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.

Original language	English
Pages (from-to)	37112-37120
Number of pages	9
Journal	ACS Applied Materials and Interfaces
Volume	11
Issue number	40
DOIs	https://doi.org/10.1021/acsami.9b12908
State	Published - 9 Oct 2019

Bibliographical note

Publisher Copyright:
© 2019 American Chemical Society.

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This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 9 Industry, Innovation, and Infrastructure

Keywords

additive manufacturing
crystallinity
in situ X-ray scattering
isotactic polypropylene
shish-kebab

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10.1021/acsami.9b12908

Cite this

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title = "In Situ Time-Resolved X-ray Scattering Study of Isotactic Polypropylene in Additive Manufacturing",

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.",

keywords = "additive manufacturing, crystallinity, in situ X-ray scattering, isotactic polypropylene, shish-kebab",

author = "Yuval Shmueli and Lin, \{Yu Chung\} and Sungsik Lee and Mikhail Zhernenkov and Rina Tannenbaum and Gad Marom and Rafailovich, \{Miriam H.\}",

note = "Publisher Copyright: {\textcopyright} 2019 American Chemical Society.",

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month = oct,

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doi = "10.1021/acsami.9b12908",

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AU - Shmueli, Yuval

AU - Lin, Yu Chung

AU - Lee, Sungsik

AU - Zhernenkov, Mikhail

AU - Tannenbaum, Rina

AU - Marom, Gad

AU - Rafailovich, Miriam H.

PY - 2019/10/9

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N2 - 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.

AB - 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.

KW - additive manufacturing

KW - crystallinity

KW - in situ X-ray scattering

KW - isotactic polypropylene

KW - shish-kebab

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IS - 40

ER -

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

Abstract

Bibliographical note

UN SDGs

Keywords

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