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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) : F$ T% }1 M8 ?" {: C/ ]! |
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热变形温度----------维卡软化点 ------------马丁耐热 3 I/ C+ X B+ D8 |+ c3 U
HDPE -----------------80-------------------------120 ------------------------\\ $ p$ I7 D! ^( X/ s. e
LDPE-------------------50--------------------------95--------------------------\\ ; D1 g2 \5 _6 ]# Z8 {8 X& N W
EVA---------------------\\---------------------------- 64-------------------------\\
( P' r! Q% |6 V# e+ iPP........................102........................110........................\\ 5 i+ v# Z" @8 b% q7 u
PS........................85............................105..................... \\ ' q! b/ B- e' o, |
PMMA...................100..........................120...................... \\ 6 I6 D( j9 |, W0 O; z% [) g7 C0 W
PTFE.....................260..........................110.......................\\ c! g6 X6 f k4 G) \3 R
ABS.......................86...........................160......................75
7 k' M0 z0 P, Z) l( H, MPSF.......................185..........................180.....................150 , o; ~; @* S6 O9 K8 `$ C
POM.......................98............................141.....................55
, f4 d( N/ z0 X' Q! H9 ePC.........................134.............................153...................112
% v# `* _# \' G" N! sPA6.......................58..............................180....................48
: v% G4 V+ w4 c/ P7 }9 [8 cPA66......................60..............................217................... 50 ! v3 Y( I4 _& I* B& t [& C* W
PA1010..................55..............................159.....................44
' F R1 N8 z# A2 E- s aPET........................70..............................\\........................80 U# C A- }$ e0 [
PBT........................66..............................177....................49
" ~! Y8 v$ s$ n# j9 s5 W% f; ZPPS........................240.............................\\........................102 2 _" [1 m) j- G
PPO.......................172..............................\\........................110 9 r7 f, _4 S9 o" F
PI...........................360........................... 300..................... \\ & u5 i! |" ]2 a9 O4 O
LCP........................315..............................\\ .........................\\ , B" A! q* r0 G# D2 J7 m: o
! Q% _) l- E6 e3 l2 l# L( ?% U附件中是常用塑料的性能和选用要求. |
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