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Title: Low shear process for producing polymer composite fibers

Abstract

A method for producing a polymer composite fiber comprised of a polymer matrix with filaments incorporated therein whose lengthwise dimensions are substantially oriented with the axial dimension of the composite fiber, the method comprising subjecting a melt comprised of a polymer matrix and filaments to an extrusion process in which the melt is extruded into a fibrous form in the absence of screw extruders and in the substantial absence of shear forces that result in breakage of the filaments, followed by cooling and solidification of the extruded melt to provide the polymer composite fiber. Integration of these polymer composite fibers with additive manufacturing technologies, particularly rapid prototyping methods, such as FFF and 3D printing, are also described. The resulting polymer composite fibers and articles made thereof are also described.

Inventors:
; ; ;
Issue Date:
Research Org.:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1495369
Patent Number(s):
10137617
Application Number:
14/689,466
Assignee:
UT-BATTELLE, LLC (Oak Ridge, TN)
Patent Classifications (CPCs):
B - PERFORMING OPERATIONS B29 - WORKING OF PLASTICS B29C - SHAPING OR JOINING OF PLASTICS
B - PERFORMING OPERATIONS B29 - WORKING OF PLASTICS B29K - INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR {MOULDS, } REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
DOE Contract Number:  
AC05-00OR22725
Resource Type:
Patent
Resource Relation:
Patent File Date: 2015 Apr 17
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

Citation Formats

Kunc, Vlastimil, Duty, Chad E., Love, Lonnie J., and Naskar, Amit K. Low shear process for producing polymer composite fibers. United States: N. p., 2018. Web.
Kunc, Vlastimil, Duty, Chad E., Love, Lonnie J., & Naskar, Amit K. Low shear process for producing polymer composite fibers. United States.
Kunc, Vlastimil, Duty, Chad E., Love, Lonnie J., and Naskar, Amit K. Tue . "Low shear process for producing polymer composite fibers". United States. https://www.osti.gov/servlets/purl/1495369.
@article{osti_1495369,
title = {Low shear process for producing polymer composite fibers},
author = {Kunc, Vlastimil and Duty, Chad E. and Love, Lonnie J. and Naskar, Amit K.},
abstractNote = {A method for producing a polymer composite fiber comprised of a polymer matrix with filaments incorporated therein whose lengthwise dimensions are substantially oriented with the axial dimension of the composite fiber, the method comprising subjecting a melt comprised of a polymer matrix and filaments to an extrusion process in which the melt is extruded into a fibrous form in the absence of screw extruders and in the substantial absence of shear forces that result in breakage of the filaments, followed by cooling and solidification of the extruded melt to provide the polymer composite fiber. Integration of these polymer composite fibers with additive manufacturing technologies, particularly rapid prototyping methods, such as FFF and 3D printing, are also described. The resulting polymer composite fibers and articles made thereof are also described.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2018},
month = {11}
}

Works referenced in this record:

Method for manufacturing a fiber-reinforced thermoplastic molded article
patent, July 1983


Process of making fiber for carpet face yarn
patent, September 1998


Conductive long fiber polyvinyl chloride composites
patent, December 2000


Oriented nanofibers embedded in a polymer matrix
patent, March 2011


Conducting bicomponent fibers obtained by melt spinning of PA6 and polyolefins containing high amounts of carbonaceous fillers
journal, August 2011


Highly oriented carbon fiber–polymer composites via additive manufacturing
journal, December 2014


Characterization of poly(L-lactic acid) fibers produced by melt spinning
journal, January 2001