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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)
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热变形温度----------维卡软化点 ------------马丁耐热 , A: ?9 f7 x: Y
HDPE -----------------80-------------------------120 ------------------------\\
, C) G7 q7 p! h8 d( TLDPE-------------------50--------------------------95--------------------------\\ # w8 {, N6 \; N/ ^: B7 A3 A- t
EVA---------------------\\---------------------------- 64-------------------------\\
$ l; k. g! j/ w: G3 P' U; J: rPP........................102........................110........................\\
" E R, M/ [1 u/ ?PS........................85............................105..................... \\
+ A T" d' z$ I* ePMMA...................100..........................120...................... \\ : f7 P! y O# o1 n f5 q
PTFE.....................260..........................110.......................\\
( J" O/ [% Q2 y0 c# L' DABS.......................86...........................160......................75
- `3 k- o4 h8 j' R6 F# Q. \. F* oPSF.......................185..........................180.....................150
% ^$ n2 B8 d6 p4 k SPOM.......................98............................141.....................55 2 m" f. c6 s0 x k7 f% y
PC.........................134.............................153...................112 5 k9 s0 Z2 G7 s; r
PA6.......................58..............................180....................48 ; }4 {. l8 m( z& O
PA66......................60..............................217................... 50
( H2 H, z: g( vPA1010..................55..............................159.....................44 1 u" n/ r- n. y3 v% U
PET........................70..............................\\........................80
# z+ q- e7 r3 g, T+ u, Y) xPBT........................66..............................177....................49 1 F2 l. e$ f$ i) |6 r& D8 b
PPS........................240.............................\\........................102
: j% d/ q4 \. ?+ sPPO.......................172..............................\\........................110
* y. F4 w# y( @6 P+ N- V. w* vPI...........................360........................... 300..................... \\ 3 T' d- d' K% ^
LCP........................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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