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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. ) t7 l9 B# @+ E7 t" o L
# |$ i- e5 L/ H# z 常用塑料的耐热性能(未经改性的) , Q- f! A& Y* K! `6 H5 ~: G# a
7 d3 p( o. r' q: S6 [& {: I/ ` 热变形温度----------维卡软化点 ------------马丁耐热
& E4 `2 Z" w! O8 e, ~. n3 qHDPE -----------------80-------------------------120 ------------------------\\ + R3 A. Z0 T4 s9 h* D
LDPE-------------------50--------------------------95--------------------------\\ 3 }8 U- x3 k# U! g; ?, ^8 |
EVA---------------------\\---------------------------- 64-------------------------\\ 9 N/ B; \4 n% v8 {4 z2 h$ E
PP........................102........................110........................\\ 0 F: F$ i8 W6 M, H1 [
PS........................85............................105..................... \\
5 _* t" `+ l. Y# w2 ?/ ^; JPMMA...................100..........................120...................... \\
' n: L1 i" X$ `4 h. e0 D* K8 RPTFE.....................260..........................110.......................\\ 0 C) J2 r! U( c; [5 |0 D
ABS.......................86...........................160......................75
* {: L# a, c+ ~- \PSF.......................185..........................180.....................150
( o1 T: l' w$ X4 s! _% m% KPOM.......................98............................141.....................55
0 K4 }" K! @1 x T2 y; UPC.........................134.............................153...................112
- h# v; G5 n, F) {+ s- JPA6.......................58..............................180....................48
$ r! k4 U, I/ D1 F( mPA66......................60..............................217................... 50 $ Z- }! h3 o8 K
PA1010..................55..............................159.....................44 ; P& d/ `2 g: a% _5 q
PET........................70..............................\\........................80 % b# A+ A" ^3 M! }0 E9 x' j4 p+ {
PBT........................66..............................177....................49 ; O K y: F7 m5 @! S3 u+ {) d
PPS........................240.............................\\........................102 3 H, b9 i7 h$ i; Y/ {5 l
PPO.......................172..............................\\........................110
( X( F, D* U4 W4 _2 L5 ]PI...........................360........................... 300..................... \\ , ~& L. z) j1 K7 Z# w. z2 C
LCP........................315..............................\\ .........................\\
% L0 Y" c3 F5 ?/ a4 [
0 w% N) i: ~; m# \) g. h" P附件中是常用塑料的性能和选用要求. |
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发表于 2009-2-13 20:41
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