Three-dimensional porous siloxanes using leachable porogen particles

Perez, Lemuel Perez; Duoss, Eric B.; Lenhardt, Jeremy; Wilson, Thomas S.

Title: Three-dimensional porous siloxanes using leachable porogen particles

Patent · Tue Nov 23 00:00:00 EST 2021

OSTI ID:1860089

Perez, Lemuel Perez; Duoss, Eric B.; Lenhardt, Jeremy; Wilson, Thomas S.

According to one embodiment, a silicone-based ink for additive manufacturing includes a vinyl-terminated diphenyl siloxane macromer, a treated silica hydrophobic reinforcing filler, a rheology modifying additive, and a plurality of porogen particles. According to another embodiment, a product of additive manufacturing with a silicone-based ink includes a plurality of continuous filaments comprised of a siloxane matrix, where the continuous filaments are arranged in a geometric pattern, a plurality of inter-filament pores defined by the geometric pattern of the continuous filaments, and a plurality of intra-filament pores having an average diameter in a range of greater than 1 micron to less than 50 microns.

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Research Organization:: Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)

Sponsoring Organization:: USDOE

DOE Contract Number:: AC52-07NA27344

Assignee:: Lawrence Livermore National Security, LLC (Livermore, CA)

Patent Number(s):: 11,180,670

Application Number:: 16/368,725

OSTI ID:: 1860089

Resource Relation:: Patent File Date: 03/28/2019

Country of Publication:: United States

Language:: English

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