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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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% c$ y: x1 z8 a$ J: b- s 常用塑料的耐热性能(未经改性的)
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) W7 \& ?! v7 T. D 热变形温度----------维卡软化点 ------------马丁耐热 8 z' J1 D. O2 Z+ }. J
HDPE -----------------80-------------------------120 ------------------------\\
6 h. E7 f( w' R. `) NLDPE-------------------50--------------------------95--------------------------\\ ) m! X" L1 B- C$ z
EVA---------------------\\---------------------------- 64-------------------------\\ % a7 v) g6 ?1 v& J7 [+ E' L: i
PP........................102........................110........................\\ 4 ?$ O# S/ }5 l. f# L
PS........................85............................105..................... \\
% o* H; h: a& T$ V( }PMMA...................100..........................120...................... \\
; [9 O% z: h. }; J4 m. u# L, v" TPTFE.....................260..........................110.......................\\ 9 l0 ]. j2 `- s! r7 c' C
ABS.......................86...........................160......................75
" p, j' d# M2 {. }! \' ~$ l5 rPSF.......................185..........................180.....................150
/ K: b4 A2 e* U1 ^POM.......................98............................141.....................55
; S, @( h: ?# s5 LPC.........................134.............................153...................112 , U g+ u6 k: g( ^2 i
PA6.......................58..............................180....................48
. N/ w$ h a+ W+ \6 Q' @4 vPA66......................60..............................217................... 50
' n4 g3 g# ^: i, J O' d! q6 |( G" xPA1010..................55..............................159.....................44 ( k- [. j0 h. T6 J& A( C" q6 m
PET........................70..............................\\........................80
- Y y& B% I' m6 A3 _, q7 GPBT........................66..............................177....................49 ( z+ K7 |9 ^" b C. |1 u# c
PPS........................240.............................\\........................102
6 x2 C' G5 O2 GPPO.......................172..............................\\........................110
8 a' { u8 d9 ?PI...........................360........................... 300..................... \\ 0 x8 Y `1 E: Q0 k" E. _( h
LCP........................315..............................\\ .........................\\ " D x: V7 a2 h7 ~/ i
. W) N2 c/ j3 k: ]3 ?4 q% i3 f) n附件中是常用塑料的性能和选用要求. |
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