Titlebook: Melt Rheology and Its Role in Plastics Processing; Theory and Applicati John M. Dealy,Kurt F. Wissbrun Book 19991st edition Springer Scienc

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Rheology of Multiphase Systems,rcing agents such as fibers or minerals are such systems, as are immiscible blends of polymers. Phase-separated block or graft copolymers can be considered as immiscible blends, with the added constraint that the blend components are joined chemically. Foams are filled polymers in which the filler i

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Chemorheology of Reacting Systems,ubbers. They found that the stress in a stretched specimen decayed to zero over a long period of time, a behavior incompatible with the concept of a cross-linked structure. They concluded that cross-links had been gradually lost in the strained sample so that the apparent relaxation was actually due

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Rheology of Thermotropic Liquid Crystal Polymers, a “mesomorphic” state or “mesophase, ” and the molecular structural elements responsible for its formation are called “mesogens.” Liquid crystals do not have the three dimensional order of position of the molecules of solid crystals and are therefore capable of flowing like fluids. Unlike ordinary

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Role of Rheology in Film Blowing and Sheet Extrusion, an annular die. The extruded melt, in the form of a tube, flows upward under the influence of a vertical, “machine direction” force, applied by means of nip rolls some distance above the die. There is an overall stretching of the polymer in the machine direction, and the ratio of the linear speed o

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On-Line Measurement of Rheological Properties,primarily in the development of a new material or process, when it is useful to be able to monitor the effects of changes in formulation or operating parameters on product characteristics. In a quality control application, a slow and labor-intensive laboratory test procedure is replaced by a direct

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