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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. $ \8 x2 N& [5 r; [0 J8 x3 X$ a
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常用塑料的耐热性能(未经改性的) a1 b2 A7 k$ z: A1 B+ `4 A
2 |- h2 R a9 L8 ` 热变形温度----------维卡软化点 ------------马丁耐热 . G* \7 w7 t# B3 L& z
HDPE -----------------80-------------------------120 ------------------------\\
) r* Z' J7 `: Y" U- f1 m, W! ILDPE-------------------50--------------------------95--------------------------\\
2 \" `- ~" w7 l/ WEVA---------------------\\---------------------------- 64-------------------------\\ / C) n* q2 T% A* _) E
PP........................102........................110........................\\
8 |9 s; q8 u+ Z, }, K, WPS........................85............................105..................... \\
8 F0 f9 b. R5 v1 P3 J. [, IPMMA...................100..........................120...................... \\ $ |9 M5 l$ }$ C% C) ` f: Q" _0 t- _
PTFE.....................260..........................110.......................\\
( Z2 L$ w4 A* T" B! S+ j9 {( dABS.......................86...........................160......................75 ( @5 [. y# C- X# c& [
PSF.......................185..........................180.....................150 ?* u7 y7 b/ X2 S8 P7 f
POM.......................98............................141.....................55
% `9 X# `* f3 N- l) SPC.........................134.............................153...................112 . T) m; q, B" a+ `
PA6.......................58..............................180....................48 , Q; L7 ] q, d0 R6 w
PA66......................60..............................217................... 50
, b; f2 w, l, `, y+ h2 U8 `5 XPA1010..................55..............................159.....................44 8 u: a) b. ?) D8 z
PET........................70..............................\\........................80
$ n$ \8 U: ~/ R$ XPBT........................66..............................177....................49
9 Z! x, O; I" G( T" t2 s! j5 T' n. cPPS........................240.............................\\........................102
; l, _8 n1 `, a2 |; V% ^( fPPO.......................172..............................\\........................110
4 d4 {! R+ }. `4 \7 U- d- rPI...........................360........................... 300..................... \\
" o4 f3 Q7 V( LLCP........................315..............................\\ .........................\\ ; a. ]( n% A; [+ F% P6 J: {5 t" _
+ J1 [& V$ N) L) D附件中是常用塑料的性能和选用要求. |
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