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Phase change materials

We have phase change materials (PCMs) suitable for most thermal regulation and thermal energy storage applications, due to the wide variety of melting temperatures we provide. The CrodaTherm™ range of PCMs offer many benefits:

  • our PCMs are bio-based, made from renewable materials;
  • biodegradable;
  • have high latent heat capacity;
  • there's a broad range of melting temperatures available; and
  • proven long-term stability through laboratory testing.

CrodaTherm Phase Change Materials (PCMs) brochure

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CrodaTherm PCM Wax

Croda offers a full range of bio-based phase change materials, covering frozen, low, ambient and high temperatures. To be useful in an application, PCM wax must be macroencapsulated, which means sealing the PCM in a rigid or flexible container. 

Click on the products below to order samples:
 

 

Product
Melting
temperature (°C)
Crystallisation
temperature (°C)
 Heat capacity
(melting) (J/g)
Heat capacity
(crystallisation) (J/g) 
CrodaTherm 6.5
 7  5  219  226
CrodaTherm 9.5
 9  9  220  216
CrodaTherm 15
 13  12  207  212
CrodaTherm 19
 18  18  206  208
CrodaTherm 21
 20  20  215  210
CrodaTherm 24W
 23  23  207  213
CrodaTherm 29
 28  27  223

 222

CrodaTherm 32
 32  31  211  213
CrodaTherm 37
 36  36  216  217
CrodaTherm 53
 52  52  220  221
CrodaTherm 60
 60  60  215  219
CrodaTherm 74
 75  71  226  224

CrodaTherm Microencapsulated PCM

PCM wax can be encapsulated in a polymer shell. This allows PCM to be used in many applications where macroencapsulation is not possible, such as textiles. Therefore, the end material can remain solid, even when the PCM inside the microcapsule is liquid. Croda can supply microencapsulated PCM in powder or dispersion form.

Click on the products below to order samples:
Product
Form
Particle
size (d90, µm)
Melting temperature
(°C)
Crystallisation temperature
(°C)
Latent heat (melting)
(J/g)
Latentheat (cystallisation)
(J/g)

CrodaTherm ME 24XD

Dispersion*  10  24  19  160  -160
CrodaTherm ME 29D
Dispersion*  10  29  24  183  -179
CrodaTherm ME 29P
Powder  250  29  24  183  -179
CrodaTherm ME 29XD
Dispersion*  10  29  22  165  -165
CrodaTherm ME 29DS
Dispersion*  3  29  21  175  -175
CrodaTherm ME 32DS
Dispersion*  3  32  26  175  -175

The thermal data in the table above are obtained using differential scanning calorimetry (DSC). All values are typical values. *Thermal measurements of dispersions were performed after water evaporation.

 
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