Page 270 - Engineering Plastics Handbook

232 Engineering Plastics

TABLE 10.5 Retention of Tensile Strength(%) after Exposure to Radiation
Radiation power, Mrad
0 1000 3000 10000
Beta beam 100 100 100 110
Gamma beam 100 100 100 100

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■ Plasma properties. Aurum has outstanding plasma properties that
enable applications for etching equipment parts for semiconductors.
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■ Radiation resistance. Aurum has an exceptional radiation resistance
since it behaves as a cross-linked plastic despite being a thermoplastic
polymer. See Table 10.5.

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Aurum grades
Neat (nonfiller)
Powder: PD400, PD450, PD500
Pellets: PL400C, PL450C, PL500C
PD400 and PL400C—high-flow type
PD450 and PL450C—medium-flow type
PD500 and PL500C—low-flow type

Both powder and pellet grades are available as natural materials (non-
filler). Powder grades can be used for coating, blending components to
plastics, and compounding materials. The unfilled pellet grades (PL400C,
PL450C, and PL500C) offer a unique balance of mechanical and thermal
properties in demanding automotive, business machinery, industrial equip-
ment, electronics, electrical, and semiconductor applications (Table 10.6).
The grades exhibit outstanding resistance to radiation, a low coefficient
of thermal expansion, ultrahigh purity, low outgassing in a vacuum, excel-
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lent electrical properties, and flame resistance. Aurum PL450C can be
conventionally extruded to produce high-performance wire and cable insu-
lation and thin-wall tubing and fiber. (See Fig. 10.8.)

Carbon fiber filled—JCN3030. The JCN3030 is a carbon fiber 30% filled
grade, which offers high strength and modulus even at elevated tem-
peratures and outstanding durability, such as creep resistance. It can
replace metals, ceramics, and other plastics. High performance of
JCN3030 includes structural parts for industrial, automotive, and
aircraft applications. An outer platform on the V-2500 commercial jet
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engine is one example of Aurum JCN3030 use.