Page 22 - Handbook of Plastics Technologies

INTRODUCTION TO POLYMERS AND PLASTICS

Dielectric constant @ 60 Hz 3.7 3.7 3.1 4.6 3.8 4.0 3.3 3.2 3.2 3.5 3.6 3.9 3.1 3.5

Dielectric strength, MV/m 19.7 19.7 15.2 20.1 16.5 23.6 15.7 15 28 16.1 21.3 15.7 17.7 16.7

Density. g/cm 3 1.42 1.19 1.19 1.70 1.13 1.14 1.31 1.20 1.32 1.27 1.37 1.56 1.09 1.67 1.24

Impact strength, J/m 133 21 288 101 59 53 53 694 59 53 75 101 267 69 64

Tensile modulus, GPa 3.2 3 2.1 11 2.76 2.83 2.3 2.3 3.5 3 2.6 8.96 2.5 11.7 2.5
Comparative Properties of Thermoplastics (Continued) 49,50

Tensile strength, MPa 69 72.4 68 110 81.4 82.7 52 69 93.8 105 84.1 159 54 138 73.8

Heat deflection temperature @ 1.82 MPa (°C) 136 92 155 311 65 90 54 129 160 210 203 224 100 260 174

TABLE 1.2 Material POM PMMA Polyarylate LCP Nylon 6 Nylon 6,6 PBT PC PEEK PEI PES PET PPO (modified) PPS PSU

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