Versarien Share Discussion Threads

[p@] 30/10/2018 07:59

I see the vandals are about early today,bet they went around scratching cars, painting graffiti,smashing bus stops,thinking how clever they are.
Looks like they never grow up,now they do it for money.

[luckyorange] 30/10/2018 07:58

I don't mind about the discussion of other companies jointer, it's just promoting graphene, can't wait for the planned IPO, it will of course take a good few years to get established and build a reputation .

VRS are already there and will take some catching up with though.

[vrs1] 30/10/2018 07:54

Last night on Twitter, Neill suggested that some orders were coming. Bring it on. Proof is the pudding. I imagine a few orders will take share price to new heights.

[luckyorange] 30/10/2018 07:54

The smug look on Trumps face does wind me up and hope his trade war plans come back to bite him, there are winners and losers in the US as a result but interested to see where China goes on that as they create ties in many countries.

[jointer13] 30/10/2018 07:50

never mind about these other companies that some are desperate to push.

its versarien who is at the frontier of this technology...end of.

[1teepee] 30/10/2018 07:44

Also reduction in transportation costs

[1teepee] 30/10/2018 07:44

Doesn't need 1% only needs 0.04% - 0.07%

[club sandwich] 30/10/2018 07:38

"Will read with interest"Good luck with that - it's a video ;-)

[loglorry1] 30/10/2018 07:38

@lucky do you think any other VRS employees with Twitter accounts are confident? ;-)

[jointer13] 30/10/2018 07:37

for any new potential investors looking in.

beware.

loglorry (tim kempster) is a liar.

[loglorry1] 30/10/2018 07:36

Great post @Timbo. Are you a qualified material scientist?

Your post on surface area makes sense. I can't understand how VRS can claim FLG eg 2-10 layers at 45m2/g either but it's not my field.

Maybe they'll say it's another typo!

[ellissj] 30/10/2018 07:35

3 on the stage at austin billed as the worlds best; 3 tier 1 geic partners ; in all VRS sitting pretty. Nothing to fear here. Clear field ahead. Bring on the npl testing results ! Aimo. Dyor. Best ellis

[loglorry1] 30/10/2018 07:34

The thing to remember about concrete is it's very cheap. About $40/t. So if you want to add 1% Graphene you'll be adding 10kg/t. If Nanene sells at even $250/kg you can see the problem.

It's possible the amount needed is lower than 1% or there are niche applications where very high cost extra strength, low volume concrete is required. I'd be very surprised if that was a very large market however.

I suppose we'll see how it goes but clearly as I keep saying there are lots of Graphene companies in this space and they do not trade at a £150m premium. Thus I don't think you can attribute the premium to VRSs possible applications in this area.

[alchemy] 30/10/2018 07:28

Will read with interest

[luckyorange] 30/10/2018 07:24

Not just NR confident but Matt and David too, that will do for me 🌞

[grabster] 30/10/2018 07:21

"I think you’ll find I have never felt more confident."

Versarien ceo Neill Ricketts yesterday.



Desperate detractors meanwhile are sounding more desperate by the day on this thread and on Twitter. Coloured highlights, frames, repetition of devious shifty dishonest arguments.

[club sandwich] 30/10/2018 07:08

Alchemy - Susskind on quantum mechanics and gravity...

Leonard Susskind | "ER = EPR" or "What's Behind the Horizons of Black Holes?"

[luckyorange] 30/10/2018 06:31

Carrots show a better improvement in concrete



and sticky rice in mortar is good for building too.

[spid81] 30/10/2018 02:06

Hi Timbo,

Talga have already looked into improving the strength of concrete, the results were not impressive.

Independent laboratory testing yields significant strength increases
using Talga’s graphene additives in concrete:

~14% increase in compressive strength at 28 days cure time
~26% increase in flexural strength at 28 days cure time

This is significantly lower than other research papers that have indicated upto a 150% in compressive strength can be achieved,

I suspect this is due to Talga's low aspect ratio of their graphene,

Talga have no specifications that a publicly available, in their presentations it appears most of their FLG is 100-500 nm = 0.1-0.5 um

Talga's Aspect ratio ,
Few Layer Graphene
500nm / (4 layers x .35 each layer thickness)
500nm / 1.4
= 357

Eden can achieve upto 43% in the compressive strength depending on the amount edencrete used

The attached presentation is a good guide of Edencrete
Page 13 (dose - gallon per yard) and pages 17&21 (cost per yard)

[timbo003] 30/10/2018 00:48

>>>>>Serratia

I have not looked at Eden in any great detail, but it is a good one to follow as their trials and tribulations with regulations and the quantity and types of testing they are required to conduct, is likely to be encountered by others who want to dabble in this area. I know some other companies are looking at graphene in Concrete (for example Talga), but they seem to be focusing on improvements in electrical and/or thermal conductivity rather than strength

[timbo003] 30/10/2018 00:30

>>>>Loglorry

Re you recent post:



Are you referring to this post by superg?




Is so, Superg seems to have made an error in one of his assumptions when estimating the surface area.

The 2630 in the equation refers to the surface area (metre squared per gram) of just one lateral side of a graphene monolayer. However, there are two lateral sides to each graphene platelet. Therefore the correct equation to give a reasonable approximation of number of layers from the surface area (45 m2 /g ) would be as follows:

(2* 2630)/45 = 117 layers*

* Note: There will also be a small contribution to the measured surface area from the platelet edges, but this should be fairly negligible.

Regarding Superg’s explanation as to why the measured surface area of Nanene is much lower than you would predict for a product which claims to be mainly few layer, it makes no sense to me. Versarien (and others) measure the surface area by a BET (Brunauer–Emmett–Teller) technique, I have used this method myself on numerous occassions back in the days when I used to wear a white coat. Basically it measures the amount of gas (usually nitrogen) adsorbed on to the surface of the powder, if you know the weight of the powder, measure the quantity of gas consumed in the adsorption process and you assume that the gas adsorbed forms a mono-layer the Surface area is easy to calculate. The pack of cards analogy has nothing to do with this adsorption process or the measured surface area value.

On the question of fluorine, it may have a detrimental (or beneficial) effect on the toxicity of graphene when covalently bound to the graphene, but I do not think there is any grounds to believe that there would be more, or less of an effect compared to other commonly used functional groups.

[1teepee] 29/10/2018 23:49

https://blog.blitzwolf.com/what-are-graphene-headphones.html

[1teepee] 29/10/2018 23:45

Forecasts are based on the past and Vrs hasn't had a past yet