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Mechanical Properties of Polymers and Composites
14 Dec 1993-
TL;DR: In this article, the authors discuss various mechanical properties of fiber-filled composites, such as elastic moduli, creep and stress relaxation, and other mechanical properties such as stress-strain behavior and strength.
Abstract: Mechanical Tests and Polymer Transitions * Elastic Moduli * Creep and Stress Relaxation * Dynamical Mechanical Properties * Stress-Strain Behaviour and Strength * Other mechanical Properties * Particulate-Filled Polymers * Fiber- Filled Composites and Other Composites.
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TL;DR: In this paper, the properties of block copolymers were studied by SALS, dynamic mechanical testing, DSC, and stress-strain and dichroism experiments, and they provided a superstructure for the elastomer phase consisting of uncrystallized hard and soft segments.
Abstract: Properties of block copolymers were studied by SALS, dynamic mechanical testing, DSC, and stress-strain and dichroism experiments. Crystallization of hard segments provides a superstructure for the elastomer phase consisting of uncrystallized hard and soft segments.
76 citations
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TL;DR: In this article, electrical and thermally conductive composites made using high density polyethylene (HDPE) matrix blended with a special grade of branch-structured nickel particles were studied.
76 citations
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15 Feb 2007-Materials Science and Engineering A-structural Materials Properties Microstructure and Processing
TL;DR: In this article, the effect of nanoclay concentration on the cure behavior was investigated using an on-line dielectric cure monitoring technique using differential scanning calorimetry (DSC).
Abstract: Epoxy-clay nanocomposites were prepared with organically modified layered clay with varying clay contents (1–8 wt.%). Neat resin and nanocomposite were characterized using different techniques. At first, the effect of nanoclay concentration on the cure behaviour was investigated using an on-line dielectric cure monitoring technique. Differential scanning calorimetry (DSC) was used to verify the dielectric measurement results. Furthermore, mechanical and thermal properties were studied using tensile test and Dynamic Mechanical Analysis (DMA), respectively. Experimental results showed that properties of the epoxy were changed evidently because of the nanoclay loading. The tensile modulus of the nanocomposites increased by 47%, however, no improvement in tensile strength and glass transition temperature ( T g ) was observed. Fracture surface of the tensile samples were analyzed by Scanning Electron Microscope (SEM). The nanocomposites structures were characterized with Wide Angle X-Ray Diffraction (WAXD) and Transmission Electron Microscopy (TEM), which revealed the intercalated morphology of clay layers in the epoxy resin systems.
76 citations
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TL;DR: Results are presented from a new model which combines the geometry, chemistry and mass transport assumptions of the FG-DVC model with the mathematics of a modified percolation theory.
76 citations
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01 Jan 1985TL;DR: In this paper, the role of moisture penetration in composite materials is discussed and problems pertinent to the role and role of permeability of composite materials must be of prime consideration as limiting factors.
Abstract: The last few years have witnessed a tremendous growth in the use of composite materials in various fields, spanning the whole range from sporting goods to structural materials for the aerospace industry. Such applications almost invariably entail contacts with liquids or vapours—either aqueous or organic—bearing on both the immediate and the long-term performance of the material. Hence, problems pertinent to the role of permeability of composite materials must be of prime consideration as limiting factors. This applies particularly to the most common phenomenon of moisture penetration.
76 citations