The measurement of flexural modulus over a wide range of temperatures of a thermoplastic elastomers is given in the following figure; According to the figure which of the following statement/s is/are true. 1. At very low temperatures, i.e., below the glass transition of the elastomeric phase, both phases are hard, so the material is stiff and brittle. II. Above the Tg of the elastomeric phase, hard phase of the material softens and is elastic, resembling a conventional vulcanized rubber. II. As the temperature increases, the modulus stays relatively constant (a region referred to as "rubbery plateau") until the point where the hard phase softens or melts.

The measurement of flexural modulus over a wide range of temperatures of a thermoplastic elastomers is given in the following figure; According to the figure which of the following statement/s is/are true. 1. At very low temperatures, i.e., below the glass transition of the elastomeric phase, both phases are hard, so the material is stiff and brittle. II. Above the Tg of the elastomeric phase, hard phase of the material softens and is elastic, resembling a conventional vulcanized rubber. II. As the temperature increases, the modulus stays relatively constant (a region referred to as "rubbery plateau") until the point where the hard phase softens or melts.

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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