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Message ID: 2136     Entry time: Fri Aug 17 10:38:01 2018
Author: aaron 
Type: Summary 
Category: Vacuum 
Subject: Outgassing rate of plastics 

I was choosing a material for the new GeNS posts, and found some data on the outgassing rate of different plastics that I thought would be useful to compile.

Material % Total Mass Loss % Collected Volatile Condensable Material
Delrin 570 (with glass) .33 .02
Delrin 150 .56 .06
Acetal Copolymer    
PEI    
HDPE    
LDPE    
Teflon-PTFE .01 .01
PEEK 0.2 0
Kapton 0.96 .01
G-10 0.35 0.02
PET    

 

Some links

https://code541.gsfc.nasa.gov/Uploads_materials_tips_PDFs/TIP%20112R.pdf
https://avs.scitation.org/doi/pdf/10.1116/1.572724
https://www.mtm-inc.com/av-20100827-plastics-in-vacuum-applications.html
The wikipedia also has some general guidelines... https://en.wikipedia.org/wiki/Materials_for_use_in_vacuum
 
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