| Home | Terms of Use | Site Map | Contact Us |
IndustryCommunity.com > Manufacturing Community > Plastic and Composite Components Forum > Message
Main Menu
Find

[ List Subjects ][ Current Board ][ Post Message ]
[ View Followups ][ Post Followup ]

Subject: Copolymer material for O2 membrane

Date: 06/13/02 at 3:45 PM
Posted by: Jackie Charbel
E-mail: jcharbel@YSI.com
Message Posted:

Is there a polymer which could be used for dissolved oxygen membranes that has a lower flow dependence than teflon? The membrane must be submerged in water to record a DO reading, and I am having difficulty with low turbidity leading to a false reading due to the oxygen in the water being reduced so quickly that it cannot be replaced in non-turbid water, so the DO appears to be lower than it's actual percentage. I have tested LLDPE, HDPE, PVC/PVDC, and various polyalkanes. I need a material which is O2 permeable, but not too permeable, which leads to false readings. Perhaps a copolymer crystalline/amorphous material?

Thank you,
Jackie Charbel

YSI Inc.


Follow Ups:


Post a Follow-up:

Name:
E-Mail:
Subject:

Message to Post:

 

1999-2001 Sunlit Technology Co., Ltd. All rights reserved.