Recent content by joysop

Thanks a lot!!

Thanks for your reply, but I don't mean latex, but homogeneous liquid.

Hi there, Do you know the suppliers producing Liquid IR, Liquid BR and requid SBR respectively? Thanks and best regards, Joysop^^

I found that Silica/Silane/ESBR gives lower rolling resistance compared with Carbon Black equivalent.

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...

Graham, It's very very nice for me to get your explanations. I must have to thank you first for researching the matters for me. But a silica compound (silia/silane coupler/SSBR) gives poor wear resistance, even though it has a strong filler-rubber interaction. So it would be said that a...

I've researched on the issue. Filler-filler interactions reinforce rubber properties, especially modulus. If its interactions are high, rubber modulus at low strain becomes increased by so call 'Payne-effect'. But I don't know about how high modulus at low strain contrubutes on tire...

Always thanks, Graham, I heard that naphthenic oil has not been sured in its availability in the market. Is it true or not?

Graham, how does so called the filler-filler interaction effect on tyre performance?

Brian, do cart tyres mean golf cart tyres? & why don't you use SSBR to increase wet grip properties? Graham, I have a question to you. Why did you replace the high aromatic oil with naphthenic oil? TDAE is one of trendy alternative as I know. & Please check the thread I asked about the...

Hi there, I need comprehensive information about 'low PCA oil'. If you know informative source such as web, paper, etc. please inform of me. Thanks,

Dear GrahamBennett, My conclusion is so simple that I'm a little bit disappointed. It's as the following. Main contributor Sub-contributor Wet traction Tg of rubber rubber-filler inter. Rolling resist. rubber-filler inter. Tg of rubber Wear...

Thank you for your kind reply, It's not that simple as I expected. But I want to simplify two crucial interactions with tire performance. I've already reviewed many papers and technical document. It's hard for me to go into the conclusion. I like simplicity itself even though it's very...

Dear memebers, I have 2 questions to ask you. 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...

Dear Tom, Please accept my best thanks. I chose a short course given by London Metropolitan University. Thanks again~~ ^.^