Versarien Share Discussion Threads

[superg1] 23/4/2018 08:55

I did note a comment about the vulcanisation process seeing gains on low loadings and below is a comment on it.

NR did say they can demonstrate how their process can improve so I wonder if it's to do with Vulcanization on that side plus the gains graphene gives.

In the present work, the influence of graphene (GE) on the vulcanization kinetics of natural rubber (NR) with sulfur curing system was investigated in detail for the first time. It is found that on adding graphene the induction period of the vulcanization process is remarkably depressed, whereas the vulcanization rate is enhanced at low graphene loading and then suppressed. As a result, the optimum cure time decreases dramatically at first and subsequently shows a slight increase with increasing graphene loading.

[ashehzi] 23/4/2018 08:53

I wonder how many times we will keep saying this a bargain at this price. Too many bargains, no, i am not interested. I prefer to buy higher.

[club sandwich] 23/4/2018 08:27

'The most innovative tire manufacturer'...https://www.continental-tyres.co.uk/car/media-services/newsroom/tire-technology-tyre-manufacturer-of-the-year

[luckyorange] 23/4/2018 07:53

Anyway, the point of the mag article is that it shows when a tyre company moves it moves quickly. so having seen the improvements it will want to crack on.

Don't know if there are cost savings by using graphene and they would never tell anyone but I hope there is because the bottom line is a big motivator in any good business.

[luckyorange] 23/4/2018 07:41

Never knew there were so many interesting magazines out there ;)




At a recent event organized by a major automation brand, I had the opportunity to sit through a customer presentation (a leading tyre brand). A well articulated presentation, the speaker outlined the challenges that the tyre producers are facing in business today – increased competition on price, quality and delivery, pressure to reduce the tire development life cycle, enforcement of modular processes, perform with fewer employees and frequently changing product demands.

"However, this means that every tyre machinery manufacturer is continuously challenged to evolve rapidly in technology offered and differentiate globally. Also, the machines that you manufacture should possess the flexibility to adapt to changing trends in tire dimensions and complex designs."


p.s. choose your bladder curing press wisely!

[superg1] 23/4/2018 07:35

Lucky

Lol

I saw the news and before I opened it guessed it would be an Italian firm.

On the VRS tyre news there must be more to it than meets the eye.

EG I suspect orders that level could be typical but we haven't got any news on orders of that size before.

So what is it that caused the Nomad to put in out as a regulatory RNS.

Reading between the lines.

"Versarien will initially be providing 500g of Nanene for testing purposes, to explore the benefits of adding graphene to tyres supplied to the automotive sector. If successful, further orders would be expected."

The OQEMA guy (Lansdowne)

"This innovative material has caught the imagination of a wide variety of sectors, who see the fantastic potential in 2-dimensional materials."

Then add in NR mentioned the customer had been shown the results achieved which were very good.

The news says exploring the benefits are good then further orders expected.

But we already know the results were good and it's probably why the tyre company wants to crack on with tests.

Hence I believe it's the potential magnitude of the link up that has caused the Nomad to out out an RNS and I suspect for once the nomad knowns more than us on that particular deal..

[luckyorange] 23/4/2018 07:22

It's a moot point superg, but without a doubt the tyre in their paper has a 50% improvement on standard tyres and there are different results with different loadings of course.

Strangely Directa now have a collaboration with a tyre retreading company that just happens to be Italian for a change.

[superg1] 22/4/2018 22:11

Here is a Spanish one for you.

It's graphene is it not. If you know what graphene is and what works then the issues will leap out at you.

Spot the problem, one has me frowning.

EDIT

Well it would have leapt out at you if I'd put in the link

[superg1] 22/4/2018 22:05

Alchemy

Probably not based on the point that about 95% plus out there that claim to be graphene companies don't have graphene that fits the ISO standard for GNPs.

As far as I'm aware they don't give out the technical details so no way of telling.

Then add on 99%+ of people out there that have heard of graphene have no idea what graphene is in ISO terms so will believe anyone that says they produce graphene does exactly that.

So fire a question into the conversation.

Ask then what is required to hit the ISO and what other characteristics in GNPs are just as important.

Then to name 5 that may be able to get under 10 layer but can't hit those to make it work. Then ask them what the aspect ratios is for each company product.

When you have all the data then look up the relevant company's data sheet to see what they claim is the size.

I say what they claim as in many science papers they name the product and often find the claims are way off.

EG I just read one that tested few layer graphene shown as 3 layers. It came out as 26 layers. Then 18-24 layer came out as 64 layers.

Many claim to have graphene that is graphite, some claim to have few layer but it falls apart under scientific scrutiny.

[affc21] 22/4/2018 22:01

Sg1 post 10086,Yes I can see your logic there.So as a normal rubber tyre wears away, it is also loosing its grip as the rubber compound that is gripping the road surface breaks away.Read somewhere, it's like riding on a bed of marbles.GNP rubber tyres should then in theory have better grip due to the breaking point (wear) of the rubber compound being much higher. It actually keeps a higher grip due to its higher strength.And also a higher mileage from the tyres.

[alchemy] 22/4/2018 21:23

https://www.graphenano.com/en/una-empresa-espanola-desarrolla-una-bateria-con-autonomia-para-800-kilometros/I'm on Ibiza and this popped up in conversation.This is graphene. Is it not?

[superg1] 22/4/2018 21:14

Pete

Theoretical stuff there re graphene , no such thing as a metre square single layer of graphene has ever been produced.

The only way to do such things is the very slow highly expensive CVD process. CVD is more about computer chips and the like.

For strength gains the key is graphene nano platelets with various characteristics besides being under 10 layers.

[petejay] 22/4/2018 21:04

Just looking through a golf magazine in Las Vegas airport and there was a two page advert for Callways new graphene enhanced golf ballPart of the advert says and i quote' Did you Know'Graphene is a two dimensional crystal of pure carbon a million times thinner than a human hairIt is currently the thinnest and strongest substance known to science 200 times stronger than steelA square metre of graphene made into a hammock would be strong enough to cradle a 4kg cat...but weigh no more than one of its whiskersI assume they can back up these claims and i wonder whether nanene is stronger and lighter than this and who supplied them with their grapheneHave been holding these shares for over a year and reading snippets like this makes me very positive for the future and of its various usesCould VRS be the Cats Whiskers!!!

[superg1] 22/4/2018 20:36

Interesting tyre chat but I think it's a wrong turn to talk thermal alone.

As far as I recall in reading dozens of science papers few layer is king when it comes to adding strength and multi-layer has the reverse effect and weakens a composite but can be better at thermal dissipation.

I was thinking for tyres with less wear is that GNPs hold the material together better, IE more strength. I take that to mean more grip too as the tyre surface needs more force for it to fail on the every action has an equal and opposite reaction point.

[johnveals] 22/4/2018 13:27

MotoGP tyres are still "control" tyres from a single manufacturer and are designed to last the whole race, although teams and riders are able to select from a few harder or softer options, so I would imagine that adding graphene could have some very real benefits particularly in drying wet conditions.

Motogp is on the limit racing compared to F1 where drivers and their engineers manage the fuel, tyres, battery, strategy etc to produce a yawn fest.

Graphene in tyres for everyday usage seems to offer very real advantages and hopefully we will see some benefits from that very soon.

[luckyorange] 22/4/2018 13:14

I'm with NR

"it's going to be a phenomenal business".

[hoverflyman] 22/4/2018 11:24

affc21... unless you’re driving in the Arizona desert? I wonder what graphene does for the melting point of rubber!

[affc21] 22/4/2018 11:11

A few MotoGP tyre facts I have read this morning:Grooved tyres allows the rubber to move around a little more and it speeds up the generation of heat in the carcass.Treaded tyres (wets): These are designed to shift water out of the way, and fast.Using very soft rubber, they rely on the water to cool them and stop them from overheating.All of the above facts will also apply to road tyres, perhaps to not as extreme conditions as MotoGP, so you can you can clearly see the advantage of adding GNPs to tyres.

[affc21] 22/4/2018 10:31

Brilliant research guys,it is very much appreciated.I can remember sg1 commenting, problem is in which direction do you do your research, because all directions can and seem to lead to improvements when GNPs added to the base materials. Amazing

[johnveals] 22/4/2018 10:22

In the past rival tyre manufacturers competed in F1 to provide a performance edge over their rivals. Today a single manufacturer, Pirelli, provides tyres to help create the spectacle by degrading in a predictable manner and force pit stops to enliven boring racing. Marbles are an unfortunate, but inevitable, aspect of this process. There is no driver to create the best possible tyre, they deliberately underperform.

[luckyorange] 22/4/2018 10:11

Anyway, I'm sure that others will have contributions on the tyre revolution , happy with what has been uncovered it works and it works extremely well in rubber, what's next?

[skyliteandy] 22/4/2018 10:11

Used this recipe Shavian, with ghee butter and a few extra chillies but not too many. It was lovely with some little side dishes and what have you. Probably not the best thing to have with the ghee if you've just had a stent fitted mind.

[woodpeckers] 22/4/2018 10:10

I'd go with O-kemma Shavian.

[luckyorange] 22/4/2018 10:07

I suspect that VRS will have a good working relationship with Continental who are obviously well established in China.

Not much of a stretch of the imagination for a Nanene base being set up on the Continental site there is it?

As time goes by more opportunities present themselves and the future looks more exciting.