Page 62 - Engineering Plastics Handbook

36 Introduction

TABLE 3.1 Properties—Engineering and Other Plastics
Specific gravity, density
Tensile strength
Flexural strength
Compressive strength
Shear strength
Torque strength
Tensile modulus
Flexural modulus
Compressive modulus
Bulk modulus
Shear modulus
Dynamic mechanical properties, sinusoidal, intermittent
Stiffness, rigidity (flexural modulus)
Brittleness
Percent elongation
Impact strength, Izod, notched, unnotched, Charpy
Impact resistance, free-falling dart (Gardner impact)
Hardness
Wear resistance
Abrasion resistance
Coefficient of friction, static (initial), kinetic (in motion)
Tear resistance
Puncture resistance
Coefficient of (linear) thermal expansion
Chemical resistance
Permeability to gases
UV resistance
Radiation resistance
Deflection temperature under load (DTUL)
Melt point
Glass transition temperature
Continuous-use temperature
UL relative temperature index
Vicat softening temperature
Heat capacity
Resistivity, volume
Resistivity, surface
Dielectric constant (relative permittivity), the dielectric constant normalized to the
absolute permittivity ε=ε r ε 0 , with ε= permittivity, ε r = relative permittivity,
ε 0 = absolute vacuum permittivity
Dielectric strength
Dissipation factor
Voltage, maximum before breakdown
Flame retardance
Ignition resistance
Limiting oxygen index
Optical, haze, light transmission, refractive index
Water absorption
Melt flow index, melt flow rate
Melt strength
Mold shrinkage
PVT (pressure-volume-temperature) relationship