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  • Wiley-Blackwell  (2)
  • 1990-1994  (2)
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  • 1
    Electronic Resource
    Electronic Resource
    A thermoanalytical study on solid-state cure of poly(p-phenylene sulfide) (1994)
    Stamford, Conn. [u.a.] : Wiley-Blackwell
    Polymer Engineering and Science 34 (1994), S. 81-85 
    Details
    ISSN: 0032-3888
    Keywords: Chemistry ; Chemical Engineering
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Differential scanning calorimetry (DSC) was used to investigate the solid-state cure process of poly(phenylene sulfide)(PPS) resin. Virgin PPS resin in an open sample pan was cured in DSC cell. Either air or oxygen was used as a curing atmosphere. Cure temperatures were in the range of 200 and 250 °C, which are below the melting point of PPS resin. Cure temperature as well as atmospheric condition influenced the cure behavior of PPS in the solid state. Both the rate and the amount of cure increased with increasing cure temperature. On the other hand, the time to reach the maximum cure rate was independent of cure temperature. Changing the atmosphere from air to oxygen increased both the cure rate and the amount of cure. The size effect of PPS particles on the cure reaction was also discussed.
    Additional Material: 9 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pen.760340202
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  • 2
    Electronic Resource
    Electronic Resource
    Properties of carbon fibers modified by oxygen plasma (1994)
    New York, NY [u.a.] : Wiley-Blackwell
    Polymer International 34 (1994), S. 181-185 
    Details
    ISSN: 0959-8103
    Keywords: surface modification ; oxygen plasma ; carbon fiber ; X-ray photoelectron spectroscopy ; Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Oxygen plasma treatment was used to introduce functional groups on the surface of polyacrylonitrile-based carbon fibers. The fiber surface was examined by X-ray photoelectron spectroscopy after treatment. The amount of functional groups on the fiber surface initially increased with increasing treatment time up to 2 min, thereafter remaining constant. The variation of surface energy with plasma treatment showed a similar trend. The plasma treatment affected the surface area and the mechanical properties of carbon fibers. The surface area increased but the mechanical properties decreased with increasing treatment times. The plasma treatment also changed the morphology of the fiber surface.
    Additional Material: 8 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pi.1994.210340209
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    Paper (German National Licenses)
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