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发表于 2007-11-14 00:26:45
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来自: 英国
楼上说的不对...熔点是342度...第2次熔是327度
( I( M4 |; p+ d% ~著名的性质有
3 S+ r$ M, K0 n+ r) L: vHigh thermal stability
# l% i" Q, V: r• Useful mechanical properties at extremely
/ F' \" X3 {' [- V A3 o' D* }low and high temperatures
$ N) t; d, { |0 Z• Insolubility
+ ] F& |. I( e, W9 J& }6 F3 M# o• Chemical inertness
- n. ~/ P/ C0 J• Low coefficient of friction& I! |7 X0 \2 E ]# j
• Low dielectric constant/dissipation factor
0 t( L& C. L: M# a• Low water ab/adsorptivity) E1 k4 [- t. z
• Excellent weatherability2 i' d% \- A |+ P! H
• Flame resistance q( O# P3 W; _, a* V6 d1 J
• Purity |
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