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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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热变形温度----------维卡软化点 ------------马丁耐热 & D( V1 b3 B: Q4 w
HDPE -----------------80-------------------------120 ------------------------\\ $ R3 U& W+ a4 @# V# [8 j
LDPE-------------------50--------------------------95--------------------------\\
; R/ E- a( C9 n# G2 }7 U! m! b# \EVA---------------------\\---------------------------- 64-------------------------\\
0 ~, V2 O" T3 ]2 e! \PP........................102........................110........................\\ & \+ q( V7 F9 S, Z" R5 p* G
PS........................85............................105..................... \\
! k) m3 u3 E: L1 P9 F3 l; N, @! BPMMA...................100..........................120...................... \\ / \4 @8 i* L$ g( v4 |: |
PTFE.....................260..........................110.......................\\ - m$ Y; m" n* _+ h& N& O. Q) c
ABS.......................86...........................160......................75
' k! J6 [: I1 D& Q' t7 O& SPSF.......................185..........................180.....................150 4 R% X" N$ \0 y5 W0 k$ w
POM.......................98............................141.....................55
7 D, w' ]3 K3 r+ nPC.........................134.............................153...................112 : u1 Y; a9 h/ Z% E- c7 M8 \ H
PA6.......................58..............................180....................48 " W0 B/ Y) D* G4 {
PA66......................60..............................217................... 50
3 ~3 u9 ?3 k# y( c: A- o! r! M( pPA1010..................55..............................159.....................44 + @7 }- h# k6 l: V, \7 k. l/ S/ f. C; {
PET........................70..............................\\........................80
" o0 N' p7 f. k( t; Q) B8 dPBT........................66..............................177....................49 & d0 e5 }" X) A) `+ E
PPS........................240.............................\\........................102 ) |) j/ C( j, C' K3 T
PPO.......................172..............................\\........................110
+ ]' v1 o ?5 c# V6 ^6 @( s: {) ]PI...........................360........................... 300..................... \\
- k. O( q$ Q4 H w( `/ }! t5 H! uLCP........................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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