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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. p# E; n: @0 E; C" T, A1 q! p6 I
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常用塑料的耐热性能(未经改性的)
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热变形温度----------维卡软化点 ------------马丁耐热
. X& |& r: T' N" u) A6 cHDPE -----------------80-------------------------120 ------------------------\\ 8 \. a4 }4 n- r6 O z* w) n
LDPE-------------------50--------------------------95--------------------------\\ 5 p4 P) C/ @$ [* c3 M" g
EVA---------------------\\---------------------------- 64-------------------------\\ 8 c. A& h2 ?7 W8 {: r
PP........................102........................110........................\\
' t, }; F9 d$ d2 GPS........................85............................105..................... \\ % m: l; q' ~7 }" ]
PMMA...................100..........................120...................... \\ # A( G3 M: K! R' V
PTFE.....................260..........................110.......................\\
- v/ \9 j) m) M2 `; Z5 M# b4 Y( tABS.......................86...........................160......................75 e3 R% f# Y2 c% s5 G8 v3 U- v
PSF.......................185..........................180.....................150
! i3 e4 M/ }6 ^POM.......................98............................141.....................55 . `* R3 Z2 o' Z3 B0 i
PC.........................134.............................153...................112
$ O+ {- S* V% V" gPA6.......................58..............................180....................48 K: H8 b. o( E+ ^; I' T) y
PA66......................60..............................217................... 50 + E! \: o7 a2 i0 V+ V* b) |% I
PA1010..................55..............................159.....................44
7 `9 s: t2 r+ n, c: P" oPET........................70..............................\\........................80
+ v) B( u( N. U* sPBT........................66..............................177....................49
y, h4 Z* a3 TPPS........................240.............................\\........................102
2 _ Q) |5 }+ c, o* U7 f% l& l: Y( o- ePPO.......................172..............................\\........................110
& X# |( @# k0 V API...........................360........................... 300..................... \\
2 y/ z! ?& n& o8 w% E; G! lLCP........................315..............................\\ .........................\\ / f2 v3 T7 l8 P: X2 o8 |
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附件中是常用塑料的性能和选用要求. |
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