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衡量塑料制品耐热性能好坏的指标有热变形温度 马丁耐热温度和维卡软化点三种,其中以热变形温度最为常用.
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常用塑料的耐热性能(未经改性的) ; T' C' ?- m5 ]
3 ^7 `, f% j& s2 S! ]3 r 热变形温度----------维卡软化点 ------------马丁耐热 t9 j) n: i& p
HDPE -----------------80-------------------------120 ------------------------\\ 1 U8 e7 l# l% _
LDPE-------------------50--------------------------95--------------------------\\
; M W g" D# EEVA---------------------\\---------------------------- 64-------------------------\\
5 F5 g1 E$ o, ~+ nPP........................102........................110........................\\
. ]% A3 K9 d: T% {& qPS........................85............................105..................... \\
! k5 ?* V2 k* h$ r% f2 e2 U9 DPMMA...................100..........................120...................... \\ 5 N; J5 K0 w- p# f
PTFE.....................260..........................110.......................\\ , ], D* ~, Z/ c/ z% Q7 x1 U2 {
ABS.......................86...........................160......................75 : R- l( O* Q4 L3 x
PSF.......................185..........................180.....................150 1 C( s4 c% o: u: I/ d
POM.......................98............................141.....................55
2 F0 F1 [2 }3 M4 ]PC.........................134.............................153...................112
2 d7 p2 r, Z1 b: l2 R% pPA6.......................58..............................180....................48
5 ]: a% M( d2 i. UPA66......................60..............................217................... 50 . B2 V+ E/ | i# j( r
PA1010..................55..............................159.....................44 ) h+ t, x/ b) b
PET........................70..............................\\........................80 1 m+ [1 f4 [4 U
PBT........................66..............................177....................49 $ Z/ V, A {* ^1 A7 I: `$ k
PPS........................240.............................\\........................102 : C2 o6 Z3 z' X% O
PPO.......................172..............................\\........................110 , Q% k8 _$ M, l d# |! M$ `& [
PI...........................360........................... 300..................... \\
( B4 }) E" {! T. P+ RLCP........................315..............................\\ .........................\\
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附件中是常用塑料的性能和选用要求. |
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