新理论---滚动阻力、耐磨性、生热与胶料的关系

linlin0331 · 发表于 2009-3-7 19:35:05

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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?

2. What about a filler-rbber interaction? Has it certain relationship  with the rolling resistance? True? Why & why not?

Main contributor    Sub-contributor
Wet traction    Tg of rubber       rubber-filler inter.
Rolling resist. rubber-filler inter.    Tg of rubber
Wear                Tg of rubber       thermal degradibility

The lower Tg is, the better wear resistance.

It can be simply expalained by the following equation.

Tg=E"/E'=(loss modulus/storage modulus)

Higher Tg means higher E" or lower E' from the equation.
That's why higher Tg= higher E"= higher hysterisis= higher heat build up= lower rebound= higher wet skid resistance.
On the contrary, lower Tg= higher E'= lower hysterisis= lower heat build up= higher rebound(=lower rolling resistance)= lower wet skid resist.

Hegher wet skid resistance means that the unit area a tire contacts the road is high causeing high wear. So, higher Tg= higher wet skid resistance= lower wear resistance.

It could be concluded that every factors which can increase Tg increase wet traction and decrease wear resistance and also decrease rolling resistance.

Graham, what about Silica/Silane/ESBR/BR compared with SSBR equivalent in terms of rolling resistance, wet traction and wear resistance?

zsgqust · 发表于 2009-3-7 22:57:24

能翻译成中文吗？英语不好！

linlin0331 · 发表于 2009-3-8 07:46:02

试着用英文理解吧，兄弟
可以用金山词霸帮忙
英文往往更能表现出真实的意思

说的是聚合物的玻璃化转变温度与胎面胶的各种性能要求的关系

rtiany · 发表于 2009-3-8 22:30:35

还是译成中文为好，让更多的人能更快的理解和掌握

sunnyliu · 发表于 2009-10-29 16:23:47

还是译成中文为好，让更多的人能更快的理解和掌握

weifq3132 · 发表于 2009-10-29 16:29:40

看起来费劲！！！！！

li7263588 · 发表于 2009-10-29 21:47:42

英文的啊
上学就没学好英文看的费劲
看懂的贴个中文版的
谢谢了

thc · 发表于 2009-10-30 12:23:24

:(
新增：
:( :( :( :(

plumium · 发表于 2009-10-30 18:00:24

1. In Tire tread compound, is a filler-filler interaction related with tread's wet traction properties? True? Why & why not?
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??
2. What about a filler-rbber interaction? Has it certain relationship  with the rolling resistance? True? Why & why not?
譯:那滾動阻力和填充材和橡膠間的關係呢?
Main contributor    Sub-contributor
traction          Tg of rubber       rubber-filler inter.
Rolling resist.    rubber-filler inter.    Tg of rubber
WWear                Tg of rubber       thermal degradibility

這個大家應該都知道就不翻譯囉
The lower Tg is, the better wear resistance.
Tg越低磨耗越好
It can be simply expalained by the following equation.
可由下列簡單的公式表示
Tg = loss modulus/storage modulus =G" /G' (這個公式怪怪的大家覺得呢)
Higher Tg means higher E" or lower E' from the equation.
由此公式可知E"越大或E'越小Tg越高
That's why higher Tg= higher E"= higher hysterisis= higher heat build up= lower rebound= higher wet skid resistance.On the contrary,
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
lower Tg= higher E'= lower hysterisis= lower heat build up= higher rebound(=lower rolling resistance)= lower wet skid resist.
同上
Hegher wet skid resistance means that the unit area a tire contacts the road is high causeing high wear.
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
So, higher Tg= higher wet skid resistance= lower wear resistance.
所以高Tg=高濕抓=低磨耗
,It could be concluded that every factors which can increase Tg increase wet traction and decrease wear resistance and also decrease rolling
resistance
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
最後就是白煙/silane/ESBR的系統和SSBR系統去找出所要的特性囉

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
因此可以任意改變tand vs T 的曲線形狀和剛性 vs T 形狀
大家如果對這方面有興趣可以討論喔

yang393 · 发表于 2010-3-4 11:19:05

这个Tg指的貌似不是聚合物的玻璃态转化温度吧好像应该是内耗我原来做DMA的时候做过这个

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[新技术] 新理论---滚动阻力、耐磨性、生热与胶料的关系

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