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  • 1
    Electronic Resource
    Electronic Resource
    Effects of processing variables on the mechanical properties of compression molded polystyrene-wood fiber composites (1991)
    Weinheim : Wiley-Blackwell
    Angewandte Makromolekulare Chemie 184 (1991), S. 157-166 
    Details
    ISSN: 0003-3146
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Description / Table of Contents: Die Misch- und Spritzgießbedingungen (Temperatur, Zeit und Druck) für die Verarbeitung von mit chemithermomechanischem Espenzellstoff (CTMP) verstärktem Polystyrol wurden optimiert. Die Verarbeitungsbedingungen wirkten sich wesentlich auf die mechanischen Eigenschaften des Verbundmaterials aus. Außerdem wurde der Einflußeiner zusätzlichen Faserverkapselung mit Polystyrol auf die mechanischen Eigenschaften untersucht, die im Vergleich zu den Verbunden ohne Faserverkapselung bessere Werte ergaben. Mit dem verkapselten CTMP konnte eine Verbesserung der mechanischen Eigenschaften bei einem Fasergehalt von bis zu 36 Vol.-% erreicht werden.
    Notes: Optimization of mixing and molding conditions (e.g. temperature, time and pressure) of aspen chemithermomechanical pulp (CTMP)-polystyrene composites was carried out. Compounding conditions showed a substantial effect on the mechanical properties of the composites. The effect of fiber encapsulation with polystyrene on the mechanical properties of the composites was also evaluated. Compared to non-encapsulated ones, the mechanical properties of composites showed superior results when encapsulated CTMP fibers were used. After encapsulation of wood fibers, and optimization of mixing and molding conditions, composites with up to 36% of fiber volume fraction could be incorporated in polystyrene with improved mechanical properties.
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/apmc.1991.051840114
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Process control of injection molding (1983)
    Stamford, Conn. [u.a.] : Wiley-Blackwell
    Polymer Engineering and Science 23 (1983), S. 431-438 
    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: This paper discusses the most important input parameters affecting the conventional injection-molding process and describes a closed-loop control system for determining the interaction between ten process inputs and three output parameters. The input parameters are: back pressure, holding pressure, injection time, open mold time, shot size, clamping pressure, injection pressure, screw speed, and boost cut-off. The output parameters studied are: part weight, maximum cavity pressure, and maximum mold deflection.
    Additional Material: 7 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pen.760230804
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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