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  • 1
    Electronic Resource
    Electronic Resource
    Prediction of pressure drop in two-phase single-component fluid flow (1962)
    Hoboken, NJ : Wiley-Blackwell
    AIChE Journal 8 (1962), S. 18-25 
    Details
    ISSN: 0001-1541
    Keywords: Chemistry ; Chemical Engineering
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Data on pressure drop in two-phase, single-component fluid flow, both with and without heat transfer, are presented in terms of the Lockhart and Martinelli correlation parameters. The fluids used were trichloromonofluoromethane and hydrogen.The results are compared with the correlation curve recommended by Martinelli and Nelson and give frictional pressure drops that are about 40% lower than the curve. The reasons for the deviations are discussed in terms of the effects of friction factors, the existence of metastable equilibrium, accuracy of data and instrumentation, and calculation procedures.It is concluded that the Martinelli and Nelson correlation and a simple momentum pressure drop computation can be superposed to predict roughly the total pressure drop in tubes containing steady state, two-phase, single-component fluid flow with appreciable vaporization.
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/aic.690080108
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Morphology of polyethylene blends. II: Formation of a range of morphologies in blends of polyethylene with increasing content of styrene-isoprene-styrene triblock copolymers during extrusion-blowing (1992)
    Stamford, Conn. [u.a.] : Wiley-Blackwell
    Polymer Engineering and Science 32 (1992), S. 6-13 
    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: Blends containing polyethylene (LDPE, LLDPE, or LDPE-LLDPE) with different weight percent of styrene-isoprene-styrene (SIS) triblock copolymers have been obtained by extrusion-blowing. The morphology of the blends, investigated by scanning electron microcopy (SEM), has been related to composition but also to different parameters such as viscosity, nature of the polyethylene phase, and extrusion conditions. A large range of morphologies is observed and indicates that the main factors determining the morphology of the blends are the composition, the elongational fields at the exit of the die and, in certain limits, the relative viscosities of the components of the blends.
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pen.760320103
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  • 3
    Electronic Resource
    Electronic Resource
    Photo-Oxidation and photo-stabilization of blends of low-density polyethylene and styrene-butadiene-styrene copolymersPresented at the Symposium Polymer Blends, University of Warwick, September 1981. (1982)
    Stamford, Conn. [u.a.] : Wiley-Blackwell
    Polymer Engineering and Science 22 (1982), S. 912-916 
    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: The photo-oxidation of blends of low-density polyethylene and styrene-butadiene-styrene block copolymers has, been shown to result mainly from the degradation of the pollybutadiene part of the material. The solution infra-red and fluorescence spectra, and mechanical properties have been studied as a function of the irradiation time. Evidence of some interaction between the components of the blend could be obtained.
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pen.760221410
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    Paper (German National Licenses)
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