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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) , g+ z6 z. C. x6 C/ D& A2 V1 B T
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热变形温度----------维卡软化点 ------------马丁耐热
" C$ _" m: L3 aHDPE -----------------80-------------------------120 ------------------------\\
2 m/ U) R+ B; L+ d+ YLDPE-------------------50--------------------------95--------------------------\\
1 x# V: Y- m! Z' j% }EVA---------------------\\---------------------------- 64-------------------------\\ + G- j& J3 {7 C! h# Y
PP........................102........................110........................\\ 2 T+ K6 ]4 r" M, }7 V! D1 T
PS........................85............................105..................... \\ : p3 B0 r% _0 }0 U1 ]
PMMA...................100..........................120...................... \\ & M+ b7 w1 @+ L7 @/ _
PTFE.....................260..........................110.......................\\ , o" S! s' b9 p' `3 e# ^
ABS.......................86...........................160......................75 0 k) ?6 O9 a3 @& ^5 O6 W
PSF.......................185..........................180.....................150
. e4 P7 W/ k6 D) r+ ]+ [& t a% \, KPOM.......................98............................141.....................55
5 [4 v8 `' C: U0 PPC.........................134.............................153...................112
5 i5 n2 P/ u4 uPA6.......................58..............................180....................48 $ R! F4 N( z1 j9 L" I0 j! \" z0 E
PA66......................60..............................217................... 50
# p6 d7 ?( @" V) KPA1010..................55..............................159.....................44 1 A5 Q; b3 c8 h8 A2 c
PET........................70..............................\\........................80
; p: ~2 z9 h7 x4 kPBT........................66..............................177....................49
/ k" \9 J0 S4 g: I2 M1 ?; [6 mPPS........................240.............................\\........................102 : [2 O* j; X# ~( N
PPO.......................172..............................\\........................110
9 n+ r2 |- S" [1 \+ |PI...........................360........................... 300..................... \\
6 H' ]$ c1 ^8 C8 BLCP........................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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