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Title: 3D-Printable Silicone Materials with Hydrogen Getter Capability

Journal Article · · Advanced Functional Materials
ORCiD logo [1]; ORCiD logo [1]; ORCiD logo [1]; ORCiD logo [1]; ORCiD logo [1]
  1. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
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Organic getters are used to reduce the amount of reactive hydrogen in applications such as nuclear plants and transuranic waste. Here, the present study examines the performance of getter loaded silicone elastomers in reducing reactive hydrogen gas from the gas phase and their capability of being 3D printed using direct ink writing techniques. The samples are placed in closed vessels and exposed to hydrogen atmosphere at pressures of 580 torr and 750 mtorr and at a temperature of 25 °C. The hydrogen consumption is measured as a function of time and normalized to getter concentration in the polymer. The performance of the getter-loaded silicone elastomer containing 1,4-bis[phenylethynyl]benzene (DEB) as the organic getter and Pd/C catalyst (ratio of 3:1 DEB to catalyst) decreases with increasing the resin's curing temperature. Chemical analysis suggests that DEB reacts with the silicone resin at high temperatures. In addition, it is demonstrated that the increased surface area of 3D printed composites results in improved getter performance.

Research Organization:
Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA)
Grant/Contract Number:
AC52-06NA25396
OSTI ID:
1438364
Alternate ID(s):
OSTI ID: 1423377
Report Number(s):
LA-UR-18-20008; TRN: US1900423
Journal Information:
Advanced Functional Materials, Vol. 28, Issue 17; ISSN 1616-301X
Publisher:
WileyCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 16 works
Citation information provided by
Web of Science

References (10)

Influence of MnO2 polymorphism form on MnO2/Ag2O hydrogen getter journal July 2013
Gas Permeation Testing Results from the Mixed Waste Focus Area Improved Hydrogen Getter Program journal January 2005
Hydrogen uptake of DPB getter pellets journal November 2008
CO Poisoning and CO Hydrogenation on the Surface of Pd Hydrogen Separation Membranes journal July 2017
Thermochemical properties of the hydrogen getter DEB journal April 1999
Organic hydrogen getters: Part 2 Hydrogenation rates of solid alkynes on palladium-calcium carbonate catalysts journal May 1977
Mechanical characterization of bulk Sylgard 184 for microfluidics and microengineering journal February 2014
Kinetics of hydrogen uptake by scavenger molecules – Insights from molecular modeling journal June 2009
Mechanism and Kinetic Modeling of Hydrogenation in the Organic Getter/Palladium Catalyst/Activated Carbon Systems journal January 2015
Organic hydrogen getters: Part 1 journal January 1977

Cited By (2)

Revisiting effects of microarchitecture on mechanics of elastomeric cellular materials journal March 2019
Preparation and performance of ultraviolet curable silicone resins used for ultraviolet cured coating and ultraviolet-assisted 3D printing materials journal January 2018

Figures / Tables (8)

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Table 1(p. 5)table Table 1
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Table 2(p. 7)table Table 2
Figure 5(p. 8)figure Figure 5
Figure 6(p. 8)figure Figure 6

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Related Subjects

36 MATERIALS SCIENCE
composites
direct ink writing
getters
polymeric materials
silicones