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Low density syntactic foams via material extrusion additive manufacturing

Patent ·
OSTI ID:2294022
; ; ;

An ink formulation for additive manufacturing of low density syntactic foams is described. The ink formulation can include a thermoset resin, a curing agent suitable for use with the thermoset resin, a plurality of hollow spheres, such as glass microballoons, one or more solvents, and one or more non-hollow, viscosity modifying filler. Also described are a method of preparing the ink formulation, a method of preparing three-dimensional objects comprising low density syntactic foams, and the three-dimensional objects prepared thereby.

Research Organization:
Univ. of Tennessee, Knoxville, TN (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
NA0002839
Assignee:
University of Tennessee Research Foundation (Knoxville, TN)
Patent Number(s):
11,851,545
Application Number:
16/995,333
OSTI ID:
2294022
Country of Publication:
United States
Language:
English

References (6)

Three-phase syntactic foams: structure-property relationships journal July 2006
Tensile properties of glass microballoon‐epoxy resin syntactic foams journal July 2006
Measurement Techniques for Thermal Conductivity and Interfacial Thermal Conductance of Bulk and Thin Film Materials journal October 2016
A Review of Thermal Conductivity of Polymer Matrix Syntactic Foams—Effect of Hollow Particle Wall Thickness and Volume Fraction journal December 2012
Experimental determination of the thermal conductivity of three-phase syntactic foams journal July 2006
Microstructural failure modes in three-phase glass syntactic foams journal July 2006

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