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Arthur L. Fricke
Professor Emeritus
Ph.D., 1962, University of Wisconsin (1985)
Rheology and processing
Thermodynamic properties
Polymer characterization
Pulp and paper and polymer processes
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Brief Description of Current Research
It has been shown that kraft black liquors produced
in kraft pulping behave as complex polymer solutions. Fundamental understanding
of the rheological and thermodynamic behavior of these fluids is important if
pulping processes are to be improved with major savings in energy and major
reductions in emissions. A major program is in progress to develop correlations
relating properties of these fluids to composition.
Most polymer research requires characterization of
the polymer, particularly molecular weight and molecular weight distribution.
Research to develop methods to characterize polymers, particularly heterogeneous
polymers from natural sources such as wood extracts, polysaccharides, and
proteins, is in progress.
Research has been conducted on processes for use of
polymers such as lignin and recycled materials. This includes use of lignin for
carbon fibers and rubber reinforcement and reuse of thermoplastic packaging
material.
These studies have been supported by the U.S.
Department of Energy and a number of industrial firms.
Major Equipment
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Instron, Rheometrics, and Haake Rheometers
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System 7 DSC/TGA, Setaram Microcalorimeter,
Combustion Calorimeter
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Low Angle Light Scattering, VPO, HTHPLX, Ion
Chromatography, UV-Visible
Selected Publications
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"Molecular Weight and Molecular Weight
Distribution of Kraft Lignin," Mat. Res. Soc. Symp., 197, 21-30 (1991).
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"UV-Visible Response of Kraft Lignin in Black
Liquor," Mat. Res. Soc. Symp., 197, 77-86 (1991).
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"Vapor Pressure Equilibria for Black Liquors,"
TAPPI International Recovery Conf., (1992).
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"Viscosity of Black Liquors Up to 130deg.C and 84%
Solids," AIChE Symp. Series, Forest Products, 59-78 (1992).
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"Kraft Pulping of Slash Pine," AIChE Symp.
Series, Forest Products, 49-53 (1992).
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"Rheological Properties Characterization of Scrap
Plastic Modified Asphalt," ANTEC 50, 2457-2460 (1992).
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"An Experimental Study of Polymer-Filler
Redistribution in Injection Molded Parts," J. Reinforced Plastics and
Composites (in press).
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