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preface to fifteenth edition

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TABLE 10.2<br />

Properties of Commercial Plastics (Continued)<br />

Alloy<br />

Allyl<br />

Cellulosic<br />

Properties<br />

Polycarbonate<br />

acrylonitrilebutadienestyrene<br />

alloy<br />

Allyl-diglycolcarbonate<br />

polymer<br />

Diallyl phthalate molding<br />

Glass-filled Mineral-filled<br />

Cellulose acetate<br />

Sheet Molding<br />

Celluloseacetatebutyrate<br />

resin<br />

Sheet<br />

Compressive strength, rupture<br />

or 1% yield, 10 3 lb · in 2 11 21–23 25–35 20–32 22–33 25–36<br />

Elongation at break, % 10–15 3–5 3–5 17–40 6–40 50–100<br />

Flexural modulus at 23C,<br />

10 3 lb · in 2 300–400 250–330 1200–1500 1000–1400 740–1300<br />

Flexural strength, rupture or<br />

yield, 10 3 lb · in 2 13.0–13.7 6–13 9–20 8.5–11 6–10 2–16 4–9<br />

Hardness, Rockwell (or Shore) R117 M95–M100 E80–E87 E61 R85–R120 R100–R123 R50–R95<br />

Impact strength(Izod) at<br />

23C, J · m 1 560 11–21 21–800 16–43 107–454 53–214 133–288<br />

Tensile modulus, 10 3 lb · in 2 370–380 300 1400–2200 1200–2200 200–250<br />

Tensile strengthat break,<br />

10 3 lb · in 2 7.0–7.3 5–6 6–11 5–8 4.5–8.0 1.9–9.0 2.6–6.9<br />

Tensile yield strength,<br />

10 3 lb · in 2 8.5 2.2–7.4 4.1–7.6<br />

Thermal<br />

Burning rate, mm · min 1 1.3–3.8 1.3–3.8<br />

Coefficient of linear thermal<br />

expansion, 10 6 C 63–67 5.4–9.6 0.68–2.4 2.8 100–150 80–180 110–170<br />

Deflection temperature under<br />

flexural load (264 lb · in 2 ),<br />

C 104–116 60–88 165–288 160–288 44–91 51–98 49–58<br />

Maximum recommended<br />

service temperature, C<br />

Specific heat, cal · g 1 0.3–0.4 0.3–0.42 0.3–0.4<br />

Thermal conductivity,<br />

W·m 1 ·K 1 0.25–0.38 0.20–0.21 0.21–0.63 0.30–1.04 0.17–0.34 0.17–0.34 0.17–0.34<br />

10.27

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