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  • 1985-1989  (2)
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  • 1
    Electronic Resource
    Electronic Resource
    The morphology of fracture surfaces and mechanical properties of composites of polypropylene with glass fibers having different interface adhesion (1989)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Polymer Science 38 (1989), S. 511-528 
    Details
    ISSN: 0021-8995
    Keywords: 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: For composites polypropylene-short glass fibers having different interface adhesion, correlation has been proved to exist between the morphology of fracture surfaces, the temperature dependence of impact strength, and the deformational and fracture behavior in tensile loading. The results are interpreted in terms of the mechanism of distortion plasticity for unfilled PP and for filled PP having weak interface adhesion, and on the basis of dilatation plasticity for filled polypropylene with a higher interface adhesion. The transition from the distortion to the dilatation mechanism can be seen in fracture surfaces after tensile destruction in composites possessing a higher interface adhesion.
    Additional Material: 13 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/app.1989.070380311
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  • 2
    Electronic Resource
    Electronic Resource
    The structure of blends of polyethylene and polypropylene with EPDM elastomer (1985)
    Weinheim : Wiley-Blackwell
    Angewandte Makromolekulare Chemie 132 (1985), S. 111-122 
    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: Es wurde die Struktur von Polyethylen/Ethylen-Propylen-Dien (PE/EPDM)- und Polypropylen/Ethylen-Propylen-Dien (PP/EPDM)-Mischungen, die in dem ganzen Konzentrationsbereich durch Mischen in der Schmelze hergestellt wurden, untersucht. Die Abhängigkeit des durch Mischen entstehenden Drehmomentes von der Zusammensetzung der Mischung ist komplizierter als in der Literatur berichter wird. Die Abhängigkeit der Morphologie von der Zusammensetzung ist für beide Typen der Polymermischungen ähnlich. Röntgenstreuungsmessungen zeigen, daß EPDM in Polymermischungen mit PE und PP deren Kristallinität wesentlich verringert.
    Notes: The structure of polyethylene/ethylene-propylene-diene (PE/EPDM) and polypropylene/ethylene-propylene-diene (PP/EPDM) blends prepared in the whole concentration range of components by mixing in the melt was investigated. The dependence of the torque in mixing on the composition of the blend is more complicated than reported in the literature. The dependence of morphology on composition is similar for both types of blends. According to the X-ray scattering measurement EPDM considerably reduces the crystallinity of both PE and PP in the blend.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/apmc.1985.051320109
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    Paper (German National Licenses)
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