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- 1970-1-1
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发表于 2009-10-30 18:00:24
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1. In Tire tread compound, is a filler-filler interaction related with tread's wet traction properties? True? Why & why not?
- X; D. u5 J1 o5 H 譯:對於胎面膠配方來說,填充材和填充材間的互相作用和濕抓特性有關性嗎?? 真?假 為什麼??
) s' }" Z2 S/ K2. What about a filler-rbber interaction? Has it certain relationship with the rolling resistance? True? Why & why not?
* l. o: l4 F5 G2 U7 C2 e* E$ H 譯:那滾動阻力和填充材和橡膠間的關係呢?
: X8 C( u' W1 V" S. oMain contributor Sub-contributor
( I- A o( C& ^1 o4 btraction Tg of rubber rubber-filler inter.: k- l4 h" R e1 c5 I8 {2 f
Rolling resist. rubber-filler inter. Tg of rubber 4 _8 W; p9 W3 \) l# H# {+ w8 k
WWear Tg of rubber thermal degradibility
0 U! r$ h: E5 m1 S
; a) Q/ a/ p; Y- @) f( P這個大家應該都知道就不翻譯囉
2 @1 W5 m M+ R$ MThe lower Tg is, the better wear resistance.
: I/ d1 e8 o y, j5 P3 K$ ~& ~Tg越低磨耗越好$ z4 x. v+ y+ G4 ?$ Y& U" U$ A
It can be simply expalained by the following equation.
% w/ I% Y* a m% ^* j7 s; Z& c可由下列簡單的公式表示5 g, N6 Y- C* O: Y' }& U S
Tg = loss modulus/storage modulus =G" /G' (這個公式怪怪的大家覺得呢)
7 ?" ~& W# s: W% y$ {6 |# S! a$ |Higher Tg means higher E" or lower E' from the equation.
# Q4 ~! c; o1 n& D. N2 U由此公式可知E"越大或E'越小Tg越高
7 P6 ~2 Q1 k9 |3 w6 OThat's why higher Tg= higher E"= higher hysterisis= higher heat build up= lower rebound= higher wet skid resistance.On the contrary,* u6 q, j0 H* T; I) r/ T. N5 w
這是為甚麼 Tg越高 =遲滯效應越高=發熱量越高=回撥越低=濕抓越高
1 O* Z; ~9 a! }1 O6 S lower Tg= higher E'= lower hysterisis= lower heat build up= higher rebound(=lower rolling resistance)= lower wet skid resist.. [) @: F: u K/ N! J& o8 l( E1 [
同上
' P5 v8 m+ @4 M; c/ O4 f! B: w) kHegher wet skid resistance means that the unit area a tire contacts the road is high causeing high wear.
" M4 e4 u0 }1 f1 ?. v( _( ?8 U抓地特性越強表示和地面接觸面積越大相對的造成磨耗特性越差
( y, x) m3 ]/ f0 [! ?9 S2 m$ d8 Z2 `So, higher Tg= higher wet skid resistance= lower wear resistance.# p' B& l, [: t5 {/ ?! Y
所以高Tg=高濕抓=低磨耗/ g) b3 A# r2 [
,It could be concluded that every factors which can increase Tg increase wet traction and decrease wear resistance and also decrease rolling
! }/ ?* o, w. q" i X# a6 B resistance9 X* z Q- b+ X$ y
因此所有可能造成提升Tg的因子會提升濕抓降低磨耗和滾動阻力的增加
+ l, z# ]/ T. c5 t8 f最後就是白煙/silane/ESBR的系統和SSBR系統去找出所要的特性囉
6 M: \' @$ X5 v6 N5 K+ s
5 m: @; D* D) P6 h基本上這裡講的都是很基礎的特性但其實隨著材料的進步已能任意去控制動態特性諸如G'和G"已可以個別控制* _7 `% ] \0 S; }
因此可以任意改變tand vs T 的曲線形狀和剛性 vs T 形狀
' `, r# d0 s- y/ u" i8 I- ^大家如果對這方面有興趣可以討論喔 |
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