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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. 5 J* [" H% {! w& q( d
1 m; V2 E# R( `) g4 ]3 {* q0 S 常用塑料的耐热性能(未经改性的)
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" S1 J. v. h5 I# S) }- o5 E0 V 热变形温度----------维卡软化点 ------------马丁耐热
; Y9 J" `3 b! _6 X# L+ ?+ hHDPE -----------------80-------------------------120 ------------------------\\
6 d0 Y8 o1 K; JLDPE-------------------50--------------------------95--------------------------\\ 8 v; s! M: q4 H1 V. C6 v* v+ e
EVA---------------------\\---------------------------- 64-------------------------\\
+ [6 J! s6 y9 I3 _7 zPP........................102........................110........................\\
) v1 K! g# n4 }) ^6 G8 W6 O, cPS........................85............................105..................... \\
. i0 Z' Z" h% j$ L# Y# f' C' SPMMA...................100..........................120...................... \\
% ~# Y9 L1 S; ~/ oPTFE.....................260..........................110.......................\\
+ A, K# h& E+ E5 i; ]+ B9 z# YABS.......................86...........................160......................75
$ | X& c- u3 I& A7 O7 ~. MPSF.......................185..........................180.....................150 7 H" I; F" H5 y, i" K3 T/ `; I3 w
POM.......................98............................141.....................55
! N# f' O7 E9 T! \; T0 g2 z; ?PC.........................134.............................153...................112 / p0 f: ~& t9 y( E- N4 O
PA6.......................58..............................180....................48 5 _7 F2 c! `1 J$ c& z2 W
PA66......................60..............................217................... 50
9 C7 _$ W- b% j6 R* s. \* cPA1010..................55..............................159.....................44 ! Y" B: b- [6 A6 q5 W
PET........................70..............................\\........................80 - Y3 _4 w: v5 h9 S5 T
PBT........................66..............................177....................49
T) U# v7 g4 ]$ K$ W# WPPS........................240.............................\\........................102
( w9 b7 F& N+ S* @9 ]7 QPPO.......................172..............................\\........................110
i: s; d) K2 c% U; ]PI...........................360........................... 300..................... \\ * L2 A* S7 }" d/ ]& L( e) ~
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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