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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* d9 l0 K" [/ |4 T$ i9 F
著名的性质有% J- j% T/ |" d+ X: N7 }
High thermal stability
5 l+ R6 f7 C+ m2 O) I• Useful mechanical properties at extremely, f' f. |6 O* _5 b
low and high temperatures
* i. l1 i. H! x, i1 _! g7 Q/ E• Insolubility/ L w& S. u4 {1 `; n
• Chemical inertness8 K& `8 G* U x
• Low coefficient of friction
6 ?* ]+ |# {* I; f. X* X3 h! f• Low dielectric constant/dissipation factor, Q) Z+ b6 [( d$ S6 [$ s. H9 r0 ^9 o
• Low water ab/adsorptivity
g1 W* }, }% ~: y F6 r) J3 _0 q• Excellent weatherability
* x& b% z1 S3 W, F( c• Flame resistance$ G4 f& [' }8 \$ M! P
• Purity |
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发表于 2007-11-16 13:45:30