preface to fifteenth edition

TABLE 10.2
Properties of Commercial Plastics (Continued)
Properties
Nitrile
Unfilled
Phenolic
Melamine
phenolic,
woodflour- and
cellulosefilled
Woodflourfilled
Glass-fiberreinforced
Cellulosefilled
Mineralfilled
Compressive strength, rupture
or 1% yield, 10 3 lb · in 2 26–30 12 18–32 25–31 26–70 22–31 22.5–34.6
Elongation at break, % 0.4–0.8 3–4 1.5–2.0 0.4–0.8 0.2 1–2 0.1–0.5
Flexural modulus at 23C,
10 3 lb · in 2 1000–2000 500–590 700–1500 1000–1200 2000–33,000 900–1300 1000–2000
Flexural strength, rupture or
yield, 10 3 lb · in 2 8–10 14 11–17 7–14 15–60 5.5–11 11–14
Hardness, Rockwell (or Shore) E95–E100 M72–M76 M93–M120 M100–M115 E54–E101 M95–115 E88
Impact strength(Izod) at
23C, J · m 1 11–21 80–256 13–21 11–32 27–960 21–59 14–19
Tensile modulus, 10 3 lb · in 2 800–1700 510–580 700–1500 800–1700 1900–3300 2400
Tensile strengthat break,
10 3 lb · in 2 6–8 9 6–9 5–9 7–18 3.5–6.5 6–9.7
Tensile yield strength,
10 3 lb · in 2 12–15
Thermal
Burning rate, mm · min 1
Selfextinguishing
Coefficient of linear thermal
expansion, 10 6 C 10–40 66 68 30–45 8–21 20–31 19–26
Deflection temperature
under flexural load
(264 lb · in 2 ), C 140–154 73 74–80 149–188 177–316 149–177 320–246
Maximum recommended
service temperature, C
Specific heat, cal · g 1
Thermal conductivity,
W·m 1 ·K 1 0.17–0.30 0.26 0.15 0.17–0.34 0.34–0.59 0.25–0.38 0.42–0.57
10.35