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Title: Method of making polymer powders and whiskers as well as particulate products of the method and atomizing apparatus

Abstract

Method for making polymer particulates, such as spherical powder and whiskers, by melting a polymer material under conditions to avoid thermal degradation of the polymer material, atomizing the melt using gas jet means in a manner to form atomized droplets, and cooling the droplets to form polymer particulates, which are collected for further processing. Atomization parameters can be controlled to produce polymer particulates with controlled particle shape, particle size, and particle size distribution. For example, atomization parameters can be controlled to produce spherical polymer powders, polymer whiskers, and combinations of spherical powders and whiskers. Atomizing apparatus also is provided for atoomizing polymer and metallic materials.

Inventors:
 [1];  [2];  [1];  [1];  [3];  [1]
  1. Ames, IA
  2. Moline, IL
  3. Pittsburgh, PA
Issue Date:
Research Org.:
Ames Lab., Ames, IA (United States)
OSTI Identifier:
873484
Patent Number(s):
6171433
Application Number:
08/895645
Assignee:
Iowa State University Research Foundation, Inc. (Ames, IA)
Patent Classifications (CPCs):
B - PERFORMING OPERATIONS B05 - SPRAYING OR ATOMISING IN GENERAL B05B - SPRAYING APPARATUS
B - PERFORMING OPERATIONS B29 - WORKING OF PLASTICS B29B - PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED
DOE Contract Number:  
W-7405-ENG-82
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
method; polymer; powders; whiskers; particulate; products; atomizing; apparatus; particulates; spherical; powder; melting; material; conditions; avoid; thermal; degradation; melt; gas; jet; means; manner; form; atomized; droplets; cooling; collected; processing; atomization; parameters; controlled; produce; particle; shape; size; distribution; example; combinations; provided; atoomizing; metallic; materials; metallic materials; metallic material; gas jet; size distribution; particle size; atomized droplets; polymer material; thermal degradation; atomizing apparatus; controlled particle; polymer powder; spherical powder; form poly; produce polymer; /156/427/

Citation Formats

Otaigbe, Joshua U, McAvoy, Jon M, Anderson, Iver E, Ting, Jason, Mi, Jia, and Terpstra, Robert. Method of making polymer powders and whiskers as well as particulate products of the method and atomizing apparatus. United States: N. p., 2001. Web.
Otaigbe, Joshua U, McAvoy, Jon M, Anderson, Iver E, Ting, Jason, Mi, Jia, & Terpstra, Robert. Method of making polymer powders and whiskers as well as particulate products of the method and atomizing apparatus. United States.
Otaigbe, Joshua U, McAvoy, Jon M, Anderson, Iver E, Ting, Jason, Mi, Jia, and Terpstra, Robert. Tue . "Method of making polymer powders and whiskers as well as particulate products of the method and atomizing apparatus". United States. https://www.osti.gov/servlets/purl/873484.
@article{osti_873484,
title = {Method of making polymer powders and whiskers as well as particulate products of the method and atomizing apparatus},
author = {Otaigbe, Joshua U and McAvoy, Jon M and Anderson, Iver E and Ting, Jason and Mi, Jia and Terpstra, Robert},
abstractNote = {Method for making polymer particulates, such as spherical powder and whiskers, by melting a polymer material under conditions to avoid thermal degradation of the polymer material, atomizing the melt using gas jet means in a manner to form atomized droplets, and cooling the droplets to form polymer particulates, which are collected for further processing. Atomization parameters can be controlled to produce polymer particulates with controlled particle shape, particle size, and particle size distribution. For example, atomization parameters can be controlled to produce spherical polymer powders, polymer whiskers, and combinations of spherical powders and whiskers. Atomizing apparatus also is provided for atoomizing polymer and metallic materials.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2001},
month = {1}
}

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