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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 authors analyzed the influence of the inter-layer adhesion between steel and polymer on the ultimate strength under external pressure and longitudinal bending, and the effect of the reeling method of installation is also simulated.
52 citations
Cites methods from "Mechanical Properties of Polymers a..."
...The stress–strain tensile curve of the polymer has a hard ductile shape with uniform extension, as described by Nielsen and Landel [9]....
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TL;DR: In this article, the yield and fatigue behavior of polypropylene and polyamide-6 nanocomposites has been studied and the Eyring equation was used to model the temperature and strain rate sensitivity of the yield strengths of these two composites.
Abstract: In this paper, yield and fatigue behavior of a polypropylene nanocomposite and a polyamide-6 nanocomposite has been studied. The Eyring equation was used to model the temperature and strain rate sensitivity of the yield strengths of these two nanocomposites. Both activation volume and activation energy of the polypropylene nanocomposite were higher than those of the polyamide-6 nanocomposite. The fatigue strength of the polyamide-6 nanocomposite was higher than that of the polypropylene nanocomposite. However, the ratio of maximum fatigue stress to yield strength of the polypropylene nanocomposite was higher than that of the polyamide nanocomposite. The fatigue failure in both composites was initiated at agglomerated nanoparticles.
52 citations
TL;DR: In this paper, the electrical, mechanical and adhesive properties of new types of electrically conductive polymeric composites were reported on a base of high-density polyethylene (HDPE) matrix filled with silver-coated polyamide (PA) particles.
51 citations
TL;DR: In this article, the authors quantitatively describe the nonlinear viscoelastic creep of model nanocomposites, and construct the generalized compliance curve by means of the tensile compliance vs internal time superposition for a pseudo iso-free volume state, and predict the compliance vs real time curves for selected stresses.
Abstract: The main objectives of the study were (i) to quantitatively describe the nonlinear viscoelastic creep of model nanocomposites, (ii) to construct the generalized compliance curve by means of the tensile compliance vs internal time superposition for a pseudo iso-free-volume state, and (iii) to predict the compliance vs real time curves for selected stresses To this end, the free volume theory of nonlinear viscoelastic creep developed for thermoplastics and their blend was successfully employed Linear low density polyethylene/fumed silica nanocomposites, showing notable enhancement of the creep resistance in proportion to the surface area of incorporated nanofillers, were taken as simple model materials POLYM COMPOS, 31:1947–1955, 2010 a 2010 Society of Plastics Engineers
51 citations
TL;DR: In this paper, the effects of alumina additions to the structure and morphology of LDPE matrix were characterized using Fourier transform infrared spectroscopy (FTIR) and scanning electron microscopy (SEM), respectively.
Abstract: Nanocomposites based on low-density polyethylene (LDPE), containing 0.5, 1, 2, 3, and 5wt% of nanoalumina, were prepared by melt-mixing at 125°C and hot melt-pressing to thin polymer film at 125°C. To enhance the interfacial interaction between alumina and LDPE, alumina surface was treated with silane which acts as coupling agent. The effects of alumina additions to the structure and morphology of LDPE matrix were characterized using Fourier transform infrared spectroscopy (FTIR) and scanning electron microscopy (SEM), respectively. The mechanical behaviour of nanoalumina-reinforced LDPE composite was studied using tensile tests, flexural tests, and impact tests. The interfacial adhesion between nano alumina particle and LDPE matrix was investigated. The result showed that the reinforcement performance of nano alumina to LDPE matrix was attributed to the interfacial adhesion between nanoparticle and polymermatrix. The addition of 1 wt% nano alumina has successfully enhanced the mechanical properties of LDPE material.
51 citations
Cites background from "Mechanical Properties of Polymers a..."
...Previous researches [22, 23] had reported that the yield points often induced in the stress-strain curves of the ductile polymers reinforced with the rigid fillers....
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...This yielding phenomenon is normally caused by the effect of crazing or dewetting where the adhesion between the filler and matrix phases was destroyed [23]....
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