Share Name Share Symbol Market Type Share ISIN Share Description
Haydale LSE:HAYD London Ordinary Share GB00BKWQ1135 ORD 2P
  Price Change % Change Share Price Bid Price Offer Price High Price Low Price Open Price Shares Traded Last Trade
  +0.00p +0.00% 56.00p 55.00p 57.00p 56.00p 54.00p 56.00p 59,715 16:13:24
Industry Sector Turnover (m) Profit (m) EPS - Basic PE Ratio Market Cap (m)
Industrial Engineering 3.0 -5.6 -28.0 - 15.30

Haydale Share Discussion Threads

Showing 626 to 650 of 650 messages
Chat Pages: 26  25  24  23  22  21  20  19  18  17  16  15  Older
DateSubjectAuthorDiscuss
08/8/2018
10:55
My buy showing as a sell
milliecusto
07/8/2018
16:21
Yes, it looks like the overhang (probably from L&G) has now gone to a good home. These were the major II shareholders as reported in the FT today
timbo003
07/8/2018
16:04
Good to see Quilter in with 5.30 percent
1looking
01/8/2018
17:28
There's a new interview with RG on Proactive, explaining the significance of the new graphene based Juno drone. Well worth a listen, but the sound quality is a bit poor, so turn the volume up: http://www.proactiveinvestors.co.uk/companies/stocktube/10010/haydale-graphene-plc-eyes-big-opportunities-in-drone-market-10010.html
timbo003
01/8/2018
08:38
It's great that HAYD are doing this kind of development work but I think Banksy and his team should concentrate on projects producing graphene products and revenues asap.
chillpill
31/7/2018
00:32
This slide set was presented at the Graphene Flagship 2017, Barcelona-Spain (March 2017) http://phantomsfoundation.com/GRAPHENECONF/2017/Presentations/Graphene2017_Bohm.pdf It contains useful information regarding number of layers and flake diameter for two different grades of Talphene (how many different grades do Talga produce?) but there is no disclosure on the method of manufacture (or separation) in either case (see below). As far as the Talga graphite flake size is concerned, slide 15 in the slides given at ASX CEO Sessions (Dec 2016) confirms that the Swedish mines can produce a full range of graphite flake sizes from micro to jumbo flake http://www.talgaresources.com/irm/PDF/1924_0/TalgaPresentationASXCEOSessions For completeness, flake size definitions can be found in numerous publications, for example in the March 2015 edition of Paydirt: https://www.csaglobal.com/wp-content/uploads/2015/04/PaydirtMarch.pdf
timbo003
30/7/2018
17:31
Did you mean 100 - 500 um ? XG's grades are 1 - 25 um and papers I read suggest the laterals are too short.
serratia
30/7/2018
08:14
>>>serratia, agree with your first para Regarding Talga's lateral size, there isn't much to go on, although if you look closely at the SEM on the LHS of the slide, there is a scale given (very faint) which suggests that that most of the platelets have a lateral diameter in the range of about 100 - 500nm. For graphene producers such as Talga wishing to optimise their product range for various applications, I would have thought that having material where there were a large number of platelets with a lateral size above what is considered optimal would be preferable to having a large number below optimal, as if you start off small you cannot increase, whereas you can go the other way. This may also be an important consideration during scale up for many of the applications being considered, for example as a concrete ad-mix. The sheer forces in a concrete mixer will be massive and there is likely to be a reduction in lateral size during processing which which may depend on type of mixer, mixing time and mixing speed, therefore it may be better to start off with a large lateral size, but who knows? I am sure that this is being looked at by those groups who are working in the area (including Talga).
timbo003
29/7/2018
21:46
There might be an answer here. Talaga say 99.9% carbon purity on micrographite. From what I read they use an electrolytic (?) process. That I assume wouldn't change the 99.9%. Perhaps that's why Talaga material needs functionalization to use in composites. Others have groups attached due to their processing method which allows them to be used in composites without further functional groups added. On a second point I've read a number of papers and PhD studies that lead to the conclusion that lateral size is important. Too short and they don't give the strength and too long allows the platelet to fold in the formulation and reduces strength as the GNP unfolds under stress. Talaga say they've had independent analysis of their material. Lateral size is an easy analysis so I wonder why they don't mention it. Could the Talaga process produce long laterals ?
serratia
29/7/2018
08:57
I don't think there is a data sheet for Talphene per se, as it is still work in progress as they go through the scale up and optimization processes, also there is unlikely to be just one grade, as each grade will be tailored for the intended usage. The 99.9% purity number comes from the Q4 2017 report published in Jan 2018: Also there is some information on what has been achieved at lab scale in some of the presentations given recently, for example this one from the Graphene Technology Day at the Cambridge Graphene Centre, 26 May 2017 (see below)
timbo003
28/7/2018
17:53
Do you have a spec sheet link for Talaphene, I can only see so far comments on thickness. There are a few other things I'd like to check re their material ?
serratia
28/7/2018
16:27
>>>>Serratia Your guess is good as mine on that, but you certainly wouldn't want any functionalization of the SP2 carbons, you only want to functionalise the terminal carbon atoms and this is why Haydale employ a gentle, low temperature plasma method for their functionalization. Regarding the other Graphene suppliers you mention, I suspect they too can get their graphene to disperse in polar solvents. The type of functionalization (surface chemistry) should be considered for each intended application. For example, Ketonic or hydroxy groups (i.e oxygen) are unlikely to be the most suitable for applications which require high electrical conductivity, whereas graphene with suitably charged functional groups , or unfunctionalised graphene (where many of the terminal carbon atoms will be either charged or free radicals) are likely to be more suitable for this purpose. This is probably why Haydale selected Talga's unfunctionalised material (99.9% carbon) with its superior electrical conductance properties vs other graphene, for the manufacture of their graphene conductive ink. In another example of why the type of functionalization is important, Haydale have stated that functionalization with amino groups gives the best results for epoxy composites, which is no great surprise when you consider the chemistry of the epoxy resin formation, with the amino groups on the graphene covalently binding to the resin itself, thus imparting additional tensile strength vs non-functionalised graphene, or graphene functionalised with hydroxy groups or ketonic groups.
timbo003
28/7/2018
12:29
What level do you consider high. I've only checked a couple of producers Thomas Swan say 98% carbon, XG Sciences 90 - 97% carbon, Nanene 98% carbon. Is there a producer with purity greater than 98% ? If Nanene is 'functionalised' and is one of the purist out there that would imply non of the others would need functionalising. I accept that there may be some composite blends that are hard to make without functional groups do you have any links to suggest this is the case ie where they can't make non functionalised blends ?
serratia
28/7/2018
11:38
See link to video from the recent House of Commons event to launch the new Graphene characterisation initiative, RG is interviewed along with a few others https://physicsworld.com/a/characterization-service-promises-graphene-industry-a-leg-up/ RG expounding on the importance of the new characterisation service and also explaining and why functtionalization is required to acheive complete dispersion, and before anyone shouts that Nanene disperses without functionalization, they should look up the data sheet for Nanene and then explain why it contain such a high level of impurities? The simple answer is that it is functionalized, If any one has another explanation, I would like to hear it.
timbo003
27/7/2018
19:30
Oh BTW I think you will find the drone didn't get off the ground at Farnborough.
superg1
27/7/2018
19:29
errrm I think I'll wait for the UOM funded tests re functionalisation thanks. Damages the basal plane as per XG sciences, Paragraf and Emyrus comments. For particular types of sensors types of sensors there will be the need for some chemical doping. Plenty of companies available to do that.
superg1
24/7/2018
19:27
Once Ray is out as CEO (did he jump or was he pushed?) maybe it will all turn, it has certainly declined since that day and once L&G are out maybe it will bounce but no guarantees.
luckyorange
24/7/2018
09:22
keya, :-)
andy
24/7/2018
07:44
Dead cats don't bounce very much if at all. That's the point of the phrase "dead cat bounce".
encarter
23/7/2018
16:25
For the bounce bit I would guess....
keya5000
23/7/2018
16:24
If it's a dead cat bounce why would you want to get in?
encarter
23/7/2018
14:38
What would be a good price to get in here for the dead cat bounce ?
alfie4048
23/7/2018
13:05
Regardless of Versarien (who after all are not the cause of Haydale's difficulties are they?), what do you see that will reverse Haydale's share price decline and trigger a sustained revival?
grabster
23/7/2018
12:19
>>>>>Grabster Whilst on the subject of Nanene: Are you not concerned that all the process details for Nanene's manufacture contained within PCT patent application WO2016063036 were deemed invalid in the PCT international research report and the patent application has subsequently been withdrawn in Europe (and will probably be withdrawn elsewhere)? I suspect the competition (especially in China and India) are likely to find the information contained within WO2016036 very useful should they wish to replicate the Nanene process https://goo.gl/WFmsz4 https://register.epo.org/application?number=EP15791722&lng=en&tab=doclist
timbo003
23/7/2018
12:09
>>>>>Grabster Irrespective of the vintage of the video, MK is talking about data that shows that functionalisation using Haydale's method (not some other plasma method), produces meaningful improvements in the strength of composites, it does matter how old the video is, it still remains a fact. It is also it is worth remembering that Versarien's Nanene is almost certainly functionalised to some degree (just look at the high level of impurities in the elemental analysis), presumably this occurs during the grinding process. The nanene functionalisation no doubt accounts for its ability to disperse, but I wonder how reproducible the level and type of functionalisation really is ? On the question of why has Haydale’s share price fallen for the last few months, I think the most likely explanation is that there is a growing expectation that further funding is going to be required before the company reaches breakeven.
timbo003
Chat Pages: 26  25  24  23  22  21  20  19  18  17  16  15  Older
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