AbstractA dynamic mechanical study of four elastomeric threads has been made: the threads comprise natural rubber, nitrile rubber, Lycra, and Spanzelle. The dynamic loss modulus (E″) and the dynamic storage modulus (E′) were studied over a wide range of temperature (−110°C to 180°C) and the transitions were interpreted in the light of the chemical composition of the materials. The threads were investigated at 2, 200, and 400 static strain at a frequency of
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