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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) 0 a9 b7 R& N) h2 S* P- A3 S3 B
/ ^# M0 V7 ~$ H$ V( @+ Q 热变形温度----------维卡软化点 ------------马丁耐热
0 [8 _+ U2 Z) x# C1 NHDPE -----------------80-------------------------120 ------------------------\\
" y3 [1 f3 t* DLDPE-------------------50--------------------------95--------------------------\\
. r% H# Y% B7 k5 w1 UEVA---------------------\\---------------------------- 64-------------------------\\ 2 G# F$ K! F6 q& C
PP........................102........................110........................\\ ) B2 F: D- U& }* a [
PS........................85............................105..................... \\
+ |5 p, c1 _1 P2 B8 W% i+ WPMMA...................100..........................120...................... \\ " P) b- S6 ]% p2 b- r
PTFE.....................260..........................110.......................\\ & B; u; x) O1 Y
ABS.......................86...........................160......................75 P: V8 e* B9 V! J0 V4 }
PSF.......................185..........................180.....................150
* j8 Z# l5 \3 a, j' U5 yPOM.......................98............................141.....................55 % } u2 t6 \" y3 x V( ?
PC.........................134.............................153...................112 8 N1 B; |! C, d9 l
PA6.......................58..............................180....................48
# g. t) W# _7 `- C) |7 ~, c) w( fPA66......................60..............................217................... 50 L$ ~7 O/ [ J2 N6 y
PA1010..................55..............................159.....................44
. M6 s# ?/ o, m g; l$ L7 fPET........................70..............................\\........................80
E% n* k" u: U5 \2 C! ^% j8 hPBT........................66..............................177....................49
+ j8 y' I4 l+ Z3 ?1 I+ bPPS........................240.............................\\........................102 ! K4 k7 _% x: Z
PPO.......................172..............................\\........................110 9 [* F" s9 h. m* C5 q8 a$ @
PI...........................360........................... 300..................... \\
. x( a8 H1 P8 L3 dLCP........................315..............................\\ .........................\\ : W* C1 J( u- k6 J, C
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附件中是常用塑料的性能和选用要求. |
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