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Title: Impact of filler composition on mechanical and dynamic response of 3-D printed silicone-based nanocomposite elastomers

Abstract

Cellular silicone reinforced with silica filler prepared using additive manufacturing (AM) have been used widely for vibrational damping and shockwave mitigation. The two most commonly printed cellular silicone structures, simple cubic (SC) and face-centered tetragonal (FCT) display distinctly different static and dynamic mechanical responses dependent upon structure. In this work, the relationship between filler size and composition with mechanical response is investigated using polydimethylsiloxane-based silicones filled with aluminum oxide, graphite, or titanium dioxide. SC and FCT structures of porous, periodic silicone pads were printed using new direct ink write (DIW) resin formulations containing up to 25 wt% of functional filler (TiO2, Al2O3, or graphite). All AM pads were characterized using mechanical techniques (DMA, compression). Dynamic compression experiments coupled with time-resolved X-ray phase contrast imaging were performed to obtain insights into role of filler interactions in the in situ evolution of shockwave coupling in these functional, periodic porous polymers.

Authors:
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Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States). Advanced Photon Source (APS); Sandia National Lab. (SNL-NM), Albuquerque, NM (United States); Los Alamos National Lab. (LANL), Los Alamos, NM (United States). Center for Integrated Nanotechnologies (CINT)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA); USDOE Office of Science (SC); National Research Foundation of Korea (NRF); Ministry of Science and Information and Communications Technology (MSIT)
OSTI Identifier:
1635286
Alternate Identifier(s):
OSTI ID: 1669132; OSTI ID: 1772040
Report Number(s):
SAND-2021-2910J
Journal ID: ISSN 0266-3538; S0266353819335791; 108258; PII: S0266353819335791
Grant/Contract Number:  
AC52-06NA25396; AC02-06CH11357; NA0002442; 89233218CNA000001; NA-0003525; AC04-94AL85000; NA0003525; NRF-2017R1C1B3009270; 2019R1A2C1087209
Resource Type:
Published Article
Journal Name:
Composites Science and Technology
Additional Journal Information:
Journal Name: Composites Science and Technology Journal Volume: 198 Journal Issue: C; Journal ID: ISSN 0266-3538
Publisher:
Elsevier
Country of Publication:
United Kingdom
Language:
English
Subject:
36 MATERIALS SCIENCE

Citation Formats

Talley, Samantha J., Branch, Brittany, Welch, Cynthia F., Park, Chi Hoon, Watt, John, Kuettner, Lindsey, Patterson, Brian, Dattelbaum, Dana M., and Lee, Kwan-Soo. Impact of filler composition on mechanical and dynamic response of 3-D printed silicone-based nanocomposite elastomers. United Kingdom: N. p., 2020. Web. https://doi.org/10.1016/j.compscitech.2020.108258.
Talley, Samantha J., Branch, Brittany, Welch, Cynthia F., Park, Chi Hoon, Watt, John, Kuettner, Lindsey, Patterson, Brian, Dattelbaum, Dana M., & Lee, Kwan-Soo. Impact of filler composition on mechanical and dynamic response of 3-D printed silicone-based nanocomposite elastomers. United Kingdom. https://doi.org/10.1016/j.compscitech.2020.108258
Talley, Samantha J., Branch, Brittany, Welch, Cynthia F., Park, Chi Hoon, Watt, John, Kuettner, Lindsey, Patterson, Brian, Dattelbaum, Dana M., and Lee, Kwan-Soo. Tue . "Impact of filler composition on mechanical and dynamic response of 3-D printed silicone-based nanocomposite elastomers". United Kingdom. https://doi.org/10.1016/j.compscitech.2020.108258.
@article{osti_1635286,
title = {Impact of filler composition on mechanical and dynamic response of 3-D printed silicone-based nanocomposite elastomers},
author = {Talley, Samantha J. and Branch, Brittany and Welch, Cynthia F. and Park, Chi Hoon and Watt, John and Kuettner, Lindsey and Patterson, Brian and Dattelbaum, Dana M. and Lee, Kwan-Soo},
abstractNote = {Cellular silicone reinforced with silica filler prepared using additive manufacturing (AM) have been used widely for vibrational damping and shockwave mitigation. The two most commonly printed cellular silicone structures, simple cubic (SC) and face-centered tetragonal (FCT) display distinctly different static and dynamic mechanical responses dependent upon structure. In this work, the relationship between filler size and composition with mechanical response is investigated using polydimethylsiloxane-based silicones filled with aluminum oxide, graphite, or titanium dioxide. SC and FCT structures of porous, periodic silicone pads were printed using new direct ink write (DIW) resin formulations containing up to 25 wt% of functional filler (TiO2, Al2O3, or graphite). All AM pads were characterized using mechanical techniques (DMA, compression). Dynamic compression experiments coupled with time-resolved X-ray phase contrast imaging were performed to obtain insights into role of filler interactions in the in situ evolution of shockwave coupling in these functional, periodic porous polymers.},
doi = {10.1016/j.compscitech.2020.108258},
journal = {Composites Science and Technology},
number = C,
volume = 198,
place = {United Kingdom},
year = {2020},
month = {9}
}

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