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3D‐Printed Silicone Materials with Hydrogen Getter Capability
Author(s) -
OrtizAcosta Denisse,
Moore Tanya,
Safarik Douglas J.,
Hubbard Kevin M.,
Janicke Michael
Publication year - 2018
Publication title -
advanced functional materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 6.069
H-Index - 322
eISSN - 1616-3028
pISSN - 1616-301X
DOI - 10.1002/adfm.201707285
Subject(s) - getter , materials science , silicone , hydrogen , catalysis , polymer , chemical engineering , elastomer , curing (chemistry) , composite material , organic chemistry , chemistry , optoelectronics , engineering
Organic getters are used to reduce the amount of reactive hydrogen in applications such as nuclear plants and transuranic waste. 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.