I need a polymer surface which should show maximum hydrophilicity and for that I am going with plasma treatment. I want that the hydrophilic behavior of PP after treatment should sustain at least 90 days.
It is almost impossible, as the polar groups on the surface are mobile and, if left in air (which is a low surface energy medium) the polar groups tend to turn towards the bulk. They can, however, be "recovered" if the sample is kept for longer time in water.
Would cross-linked polypropylene (XPP, such as reported herein:
Article Cross-Linked Polypropylene Prepared by PP Copolymers Contain...
) be a feasible substitute for your PP?
If so, some gains in terms of stability could be achieved due to the more rigid structure of the polymer.
I have recently seen a non-published result according to which air pressure plasma treated polyolefin sample (dielectric barrier coating) kept a significant of the surface energy enhancement after 70-80 days (there is some reduction but the residual surface energy is still about 20% higher.
- Badges
- Science topic
- Similar topics
- Physical Sciences
- Materials Science
- Materials
- Polymers