Heat of reaction for Polyethylene 1

[Timewrap]

Hi All,

I've got some values for the heat of reaction for Polyethylene which are in the range of 3400 - 4300 KJ/KG of Polythylene. Can somebody knowledgable in this field confirm this values OR point me in the correct direction for finding out more.

Thanks in advance,

Timewrap.

 

[Pud]

Do you mean the specific heat of PE, or reaction heat of polymerisation?

If the former then here is what my little book says:

HDPE = 3640 J/kg K
LDPE = 3180
LLDPE= 3206

(Injection Moulder's Handbook, John Goff and Tony Whelan, 1991.)

Cheers

Harry

 

[Timewrap]

I meant the heat of reaction when Ethylene polymerizes to Polyethylene.

 

[Pud]

From Plastics Materials, 5th Edition, J A Brydson, 1989, page 198:

"...and {the monomer, ethylene gas} has a high heat of polymerisation (3350-4185 J/g)...."

Which is around the figures you quote.

Cheers

Harry