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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~~ ^.^

Hi, I've got so many valuable information from the site. I have something to ask you, again. I want to take a training course for rubber engineer. It will be good if it takes 1~2 weeks and for intermidate engineers. Kind regards,

If physical properties of the rubber compounds of oil extended SBR are up and down through the lot numbers from the typical values that the supplier qurantees , what things would be the most considerable causes to give that problems to it you think? Gel? Thanks for your quick and valuable reply.

Thanks Tom, it hepls me a lot. As I know, most of SBR adopted the cold polymerization method to prevent it from having gel. But in case of oil extended SBR, there is possibly a lot of gels in it, because its molecular weight is very high compared to non-extended SBRs. But there is no problem in...

Thank you, Tom and GrahamBennett. I'll find and review it.

tom, thank you for delivering helpful information to me. Do you know how to detect the existence of the gel?