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Title: Additive manufacturing of short and mixed fibre-reinforced polymer

Additive manufacturing of a fiber-reinforced polymer (FRP) product using an additive manufacturing print head; a reservoir in the additive manufacturing print head; short carbon fibers in the reservoir, wherein the short carbon fibers are randomly aligned in the reservoir; an acrylate, methacrylate, epoxy, cyanate ester or isocyanate resin in the reservoir, wherein the short carbon fibers are dispersed in the acrylate, methacrylate, epoxy, cyanate ester or isocyanate resin; a tapered nozzle in the additive manufacturing print head operatively connected to the reservoir, the tapered nozzle produces an extruded material that forms the fiber-reinforced polymer product; baffles in the tapered nozzle that receive the acrylate, methacrylate, epoxy, cyanate ester or isocyanate resin with the short carbon fibers dispersed in the acrylate, methacrylate, epoxy, cyanate ester or isocyanate resin; and a system for driving the acrylate, methacrylate, epoxy, cyanate ester or isocyanate resin with the short carbon fibers dispersed in the acrylate, methacrylate, epoxy, cyanate ester or isocyanate resin from the reservoir through the tapered nozzle wherein the randomly aligned short carbon fibers in the acrylate, methacrylate, epoxy, cyanate ester or isocyanate resin are aligned by the baffles and wherein the extruded material has the short carbon fibers aligned in the acrylate,more » methacrylate, epoxy, cyanate ester or isocyanate resin that forms the fiber-reinforced polymer product.« less
Inventors:
; ; ; ;
Issue Date:
OSTI Identifier:
1416736
Assignee:
Lawrence Livermore National Security, LLC (Livermore, CA) LLNL
Patent Number(s):
9,862,140
Application Number:
14/802,105
Contract Number:
AC52-07NA27344
Resource Relation:
Patent File Date: 2015 Jul 17
Research Org:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 42 ENGINEERING

Other works cited in this record:

Freeform fabrication method using extrusion of non-cross-linking reactive prepolymers
patent-application, August 2002

3D-Printing of Lightweight Cellular Composites
journal, June 2014
  • Compton, Brett G.; Lewis, Jennifer A.
  • Advanced Materials, Vol. 26, Issue 34, p. 5930-5935
  • DOI: 10.1002/adma.201401804

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