Influence of moisture content on creep behaviours of polymers

[jiayuan0727]

Has any body done any research to investigate the influence of moisture content on creep behaviours of polymers? like how retardation time changes with moisture content? i have done two materials creep tests and fit a burgers model to data. One material shows that retardation time increases with increasing moisture content, while the other one shows retardation time decreases with increasing moisture content. before i repeat my tests, can any body be kind enough to give me some theoretical guidance on this topic?

Many thanks

[Jorgen]

What polymer(s) are you studying?

Are you focusing only on small strain creep?
What temperatures are you studying?

-Jorgen

[jiayuan0727]

Thanks for your attention, Jorgen. i am modelling aging behaviour of both PU lacquer and natural lacquer. it is small strain under 21 C. The PU lacquer is thermoplastic and natural lacquer is thermosetting.

[Jorgen]

I don't recall any directly useful references. Any reason you do not believe in your initial experimental data?

-Jorgen