Methods of Additive Manufacturing by Direct Ink Writing of Emulsion Compositions
AssigneesVirginia Tech Intellectual Properties, Inc., Virginia Polytechnic Institute and State Univerity, Board of Regents of the University of Nebraska
InventorsEric MARKVICKA, Aaron HAAKE, Michael D. BARTLETT, Ravi Tej Anand TUTIKA, Gwyneth SCHLOER
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Abstract
In accordance with the purpose(s) of the present disclosure, as embodied and broadly described herein, the disclosure, in one aspect, relates to methods of additive manufacture of emulsion compositions. In various aspects, the present disclosure relates to composite materials incorporating microstructures formed by inclusion compositions, and methods of their manufacture. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present disclosure.
Claims60
A method of additive manufacturing of an article comprising a composite material;
- the method comprising:
- (a) extruding a first emulsion ink composition through a first nozzle to form a first layer of a composite material in a pattern that corresponds to a first layer of an article;
- wherein the first emulsion ink composition comprises a plurality of discrete droplets of a liquid inclusion composition dispersed within a prepolymer composition;
- wherein the composite material comprises a plurality of microstructures formed from the liquid inclusion composition embedded within a polymer matrix formed from the prepolymer composition;
- and wherein a first nozzle height and a first nozzle velocity at which the first emulsion ink composition is extruded from the first nozzle are chosen to control one or more of a shape of a microstructure, an aspect ratio of a microstructure, and a connectivity of microstructures in the plurality of microstructures in the first layer of the article.
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An article comprising an inclusion composition and a polymer matrix wherein the inclusion composition is dispersed within the polymer matrix as distinct microstructures of inclusion material;
- wherein the mean aspect ratio of the microstructures of inclusion material is from about 1.5 up to about 500.
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Dependencies are inferred from the claim text.