You are describing thermodynamics (the ability for different...

First 90 Last

Share
Profile

Follow
Gusman1974

2,522 Posts.

172

07/03/17

22:22

Post #: 23169947
Share

Originally posted by Pycnantha ↑

Hi Guys,

I am not a chemist, but to my knowledge Alexicool works something like this.

Different materials have different thermal properties which is to do with how effectively they transfere/conduct heat. This effects the temperature "feel".

Here's a practical activity you can do at home with the back of your hand.

Everything in your house has been sitting at in the same environment/climate all day, so it is all the same temperature.

1) if you have a timber bench or table put the back of your hand against it and hold it there for a while, taking note of the temp feel.

2) now place place the back of your hand against something made of metal e.g. the front of your dishwashing machine or a large carving knife. It should be cooler to the touch.

Both these items are actually the same temperature along with everything else that is in the same environment/climate, but they certainly don't "feel" the same temperature. The reason for this is that the metal is a far better heat conductor than the wood and dispersed the heat from your hand quicker, whereas the wood is more of an insulator.

So it is my understanding that phase change ability of Alexicool is able to improve the heat transfer properties of a fabric, without impacting on other properties like softness. It won't be a cooler fabric, but it will feel cooler. Thus the terminology "cool to touch".

Would be interested in the opinion of others, particularly a physics or chemist nerd.

Cheers,

*disclaimer: if one of the items you touch has been on the window sill and in the sun all day and the other at the back of the room in the shade, this effects the test because they have not had the same exposure. So use two items in the shade preferably.

Expand

You are describing thermodynamics (the ability for different materials to either conduct or insulate heat depending on their thermal properties, I am not sure how easy it is to change thermal properties without changing the material, easier to just use a different material, (air or a vacuum is used in double glazing as it is very poor at transferring heat). Nothing to do with Phase Change. See explanation in my post above.

AJX Price at posting: 60.0¢ Sentiment: Hold Disclosure: Held
1 Upvote

0 Great analysis

Reply

Top Stories

EMD

Emyria jumps 10% on 'interim' success treating PTSD patients with MDMA

GMD

Genesis set for higher gold production in FY25 and earlier mill start

RDN

Raiden Resources jumps 11% as Andover South drilling to kick off with PoW on Minister's desk

BAS

Bass completes successful testing work at Kiwi-1, showing higher-than-expected condensate yields

TAT

Tartana Minerals firms up producer status with recent 150tn shipment of copper sulphate to the NT

There are more pages in this discussion • 6 more messages in this thread...

First 90 Last

Add AJX (ASX) to my watchlist

(20min delay)
Last 0.8¢		Change 0.000(0.00%)		Mkt cap ! $12.49M

Open	High	Low	Value	Volume
0.8¢	0.8¢	0.8¢	$0	2

Buyers (Bids)

No.	Vol.	Price($)
8	1321407	0.8¢

Sellers (Offers)

Price($)	Vol.	No.
0.9¢	57000	1

View Market Depth

No.	Vol.	Price($)
8	1321407	0.008
6	3850194	0.007
4	581167	0.006
1	300000	0.005
1	500000	0.004

Price($)	Vol.	No.
0.009	57000	1
0.010	150000	2
0.011	1000000	2
0.013	669958	2
0.014	134311	1

Last trade - 14.03pm 02/09/2024 (20 minute delay)

AJX (ASX) Chart

You are describing thermodynamics (the ability for different...

Emyria jumps 10% on 'interim' success treating PTSD patients with MDMA

Genesis set for higher gold production in FY25 and earlier mill start

Raiden Resources jumps 11% as Andover South drilling to kick off with PoW on Minister's desk

Bass completes successful testing work at Kiwi-1, showing higher-than-expected condensate yields

Tartana Minerals firms up producer status with recent 150tn shipment of copper sulphate to the NT

Featured News

Buyers (Bids)

Sellers (Offers)

Featured News

You are describing thermodynamics (the ability for different...

Top Stories

Emyria jumps 10% on 'interim' success treating PTSD patients with MDMA

Genesis set for higher gold production in FY25 and earlier mill start

Raiden Resources jumps 11% as Andover South drilling to kick off with PoW on Minister's desk

Bass completes successful testing work at Kiwi-1, showing higher-than-expected condensate yields

Tartana Minerals firms up producer status with recent 150tn shipment of copper sulphate to the NT

Featured News

Buyers (Bids)

Sellers (Offers)

Featured News