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    Description

    In order to quantify the effect of temperature on the mechanical properties of pure nylon 6 and its composite with cellulose fibers (containing 25 wt% cellulose fibers), the materials were sampled and tested at three representative temperatures of 256, 296, and 336 K. Flexural and tensile tests were performed and the reductions in mechanical properties were evaluated. The highest reductions were observed in stiffness (modulus) values and the cellulose fibers remarkably enhanced the high temperature resistance of nylon. The reductions in mechanical properties were well explained by a simple quadratic curve fitting procedure applied to experimental data. Dynamic mechanical analysis (DMA) was also performed to study the effect of temperature on mechanical performance. No shifting in glass transition temperature was observed, but the composite material showed less viscous behavior as seen by its lower mechanical loss factor (tan δ) values in the rubbery state. The results of the present study will be helpful in determining the end-use application of these composite materials.

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    Citation

    Tajvidi, Mehdi; Feizmand, Mokhtar; Falk, Robert H.; Felton, Colin 2009. Effect of cellulose fiber reinforcement on the temperature dependent mechanical performance of nylon 6. Journal of reinforced plastics and composites. Vol. 28, no. 22 (2009): pages 2781-2790.

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    Keywords

    Composites, mechanical properties, temperature, nylon, cellulose, composite materials, testing, cellulose fibers, injection molding of plastics, extrusion process, thermoplastic composites, viscosity, flexure, elasticity, modulus of elasticity, stiffness, tensile strength, dynamic mechanical analysis

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