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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)
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7 j. k+ y% ?; E0 ^5 v 热变形温度----------维卡软化点 ------------马丁耐热
1 v$ p6 h, f& S8 qHDPE -----------------80-------------------------120 ------------------------\\ , a6 K- F* d9 L3 S6 e% B
LDPE-------------------50--------------------------95--------------------------\\ / s% N* r; D7 n- t4 }
EVA---------------------\\---------------------------- 64-------------------------\\
8 K+ v7 K A" A7 k4 [1 i! i- c J6 tPP........................102........................110........................\\ : V W4 R6 X' P
PS........................85............................105..................... \\ + e' V$ j+ x0 u. e: I5 M
PMMA...................100..........................120...................... \\ : `* e1 F5 e8 ]3 I( s
PTFE.....................260..........................110.......................\\
4 B+ d0 W) Y2 A8 N; ^+ FABS.......................86...........................160......................75
! ~, x! G2 V) b2 l# l2 xPSF.......................185..........................180.....................150
; H+ P/ v4 W6 \) x& l) n& u$ i t8 nPOM.......................98............................141.....................55
. U9 E, Q5 J1 ~PC.........................134.............................153...................112 6 P- u$ r- C [5 K" ]
PA6.......................58..............................180....................48
# @4 t7 _. R* v7 i* l0 i% B' MPA66......................60..............................217................... 50
: D! g% K$ u) y# `* B% q5 HPA1010..................55..............................159.....................44 , e% x( s! C* r$ v, ^ [5 b
PET........................70..............................\\........................80
4 K) e ?/ v) n! A* U% pPBT........................66..............................177....................49
O( J5 R9 C- ~" ~PPS........................240.............................\\........................102
) ` [5 [. S- }0 ePPO.......................172..............................\\........................110 . c, ^7 w* j: ^. E) B5 G
PI...........................360........................... 300..................... \\
6 E" O- ^6 x( e) c: KLCP........................315..............................\\ .........................\\ : l, x$ k2 s2 R* t' G, W- c8 Y
: [- o' A/ R9 `# Q附件中是常用塑料的性能和选用要求. |
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