Looking for Phase change material

  • Thread starter martinl
  • Start date
  • #1
3
0

Main Question or Discussion Point

Hi All,

I'm working on a project that requires a flexible membrane be heated and cooled about 2000 times.

During the cooling process, I require the material give off heat for as long a period of time as possible. I figure a phase change material will have the highest heat capacity and give off its latent heat, over an extended period of time, while cooling at it's melting point.

So, I'm looking for a phase change material that I can imbed in a thin layer of silicon rubber to form the heat sink part of my membrane.

I considered magnesium nitrate hexahydrate (melting point 87 C), but fear that it is too toxic and flammable. The final membrane will be handled extensively and twisted and bent many times over its lifetime.

Could someone please give me some more suggestions of what else to try?
As many as possible (I may want to mix them to even out the heat transfer over the temp range)

Thanks a lot.
 

Answers and Replies

  • #2
chemisttree
Science Advisor
Homework Helper
Gold Member
3,303
308
Try the various esters of palmitic acid. Find some that are liquid at slightly higher than room temperature. Some other compounds you might consider are, in a general class, saturated fatty acid methyl or ethyl esters, cholesteryl esters, rigid rod aromatic esters.
 
Last edited:

Related Threads on Looking for Phase change material

  • Last Post
Replies
2
Views
872
Replies
7
Views
976
  • Last Post
Replies
0
Views
1K
  • Last Post
Replies
6
Views
8K
Replies
1
Views
1K
  • Last Post
Replies
2
Views
2K
Replies
12
Views
2K
Replies
3
Views
747
Replies
2
Views
2K
Top