Page 61 - Engineering Plastics Handbook

Chapter
3

Properties

James M. Margolis
Margolis Polymers
Montreal, Province of Quebec, Canada

Property Checklist

Properties of engineering and other plastics are shown in Table 3.1.
Selected ASTM and similar ISO standards are shown in Table 3.2. Some
test methods and specifications shown are prior to or after the year 2000.
The ASTM and ISO standard test methods and specifications shown
in Table 3.3 refer specifically to engineering thermoplastics.
Medical grades are supplied with other engineering plastics such as
® ®
Radel poly(phenylene sulfone) and Lexan polycarbonate.
Typical ASTM test methods used in suppliers’ property tables for U.S.
markets are given in Table 3.5.
Bulk modulus K is the ratio of change in pressure/volume compression
(fractional change in volume), where K = V(∆P/∆V). For solids, applied
stress is used instead of pressure, and K is a constant for a given mate-
rial. When there is an adiabatic exchange of heat, we have bulk modulus
at constant entropy [13]. When the bulk modulus is determined at constant
temperature, we have the isothermal bulk modulus [13].

*The chapter author, editors, publisher, and companies referred to are not responsible
for the use or accuracy of information in this chapter, such as property data, processing
parameters, and applications.
†
Author can be contacted at margolispolymers1@verizon.net or by writing him at
Margolis Polymers, 40 Twilight Avenue, Keansburg, New Jersey 07734 USA.
35
Copyright © 2006 by The McGraw-Hill Companies, Inc. Click here for terms of use.