Moisture Analysis of Polymers

[JPC10]

Would anyone know where to obtain recommended setting (Drying Temperature & Drying Time) for carrying out moisture tests on polymer resins (PC, PA 6, PA 11, PA 12, ABS, Pebax's etc)

JPC10

 

[Demon3]

Could you please clarify? If you want to know the moisture content then don't dry it at all. Once you start drying the polymer will gradually lose weight down to some equilibrium value depending on the temperature.

Chris DeArmitt

"Knowledge has no value except that which can be gained from its application toward some worthwhile end."
Think and Grow Rich - Napoleon Hill

 

[JPC10]

The setting are for the Moisture analyser. I have a MB35 moisture anaylser and I want to set up specific programs for PC, Pebaxs, etc. (Example for PC, start temp 140C for 5 mins) The analyser will weight before and after the program has finished. It's part of incoming inspection paln to monitor moisture content in resins before they're processed. I looking to see if there are general recommendations for the analyser machine settings for different polymers?

 

[Demon3]

PET, ABS and PMMA are given in the online User's Guide.

http://www.scales-galore.com/pdfs/moisture-balance.pdf

Chris DeArmitt

"Knowledge has no value except that which can be gained from its application toward some worthwhile end."
Think and Grow Rich - Napoleon Hill

 

[Demon3]

So in essence:

Weight program automatic
Time 20 minutes
Temperature Tg of the polymer plus 20°C

Chris DeArmitt

"Knowledge has no value except that which can be gained from its application toward some worthwhile end."
Think and Grow Rich - Napoleon Hill

 

[JPC10]

Thanks Demon3.

 

[rodneybennet]

Dear JPC10,

A lot of laboratory set-up and library data on this subject (including referenced moisture figures for various virgin, filled and composite materials) can be found at

http://w

http://www.composite-agency.com

You may also try their forum on integrated knowledge of diffusion, corrosion and mechanical retention properties
(

http://www.composite-agency.com/materials-forum.htm).

Kind Regards,
Rodney