Water absorption properties of phenolic laminates.
Water absorption properties of phenolic laminates.
(OP)
Dear reader,
We are currently manufacturing quite large panels for a scientific base from the following materials:
Skins : E-glass/phenolic (Cellobond 2027), 6mm thick
Core : Polyurethane foam, 120mm thick
The sandwhich panels are typically 7m long, 2.4m wide and 120mm thick. They are trimmed along the sides.
The question is what happens to the laminate under prolonged exposure to moisture, especially along the trimmed edges. Will we get any problems of moisture migrating along the fibes. The manufacturing technique employed is a vacuum infusion process. If so, how can we prevent moisture from migrating? Painting exposed cut fibres with resin perhaps?
There is a lot of literature available for polyester laminates, but none for phenolic laminates.
Can anybody help.
Regards
Heinrich
We are currently manufacturing quite large panels for a scientific base from the following materials:
Skins : E-glass/phenolic (Cellobond 2027), 6mm thick
Core : Polyurethane foam, 120mm thick
The sandwhich panels are typically 7m long, 2.4m wide and 120mm thick. They are trimmed along the sides.
The question is what happens to the laminate under prolonged exposure to moisture, especially along the trimmed edges. Will we get any problems of moisture migrating along the fibes. The manufacturing technique employed is a vacuum infusion process. If so, how can we prevent moisture from migrating? Painting exposed cut fibres with resin perhaps?
There is a lot of literature available for polyester laminates, but none for phenolic laminates.
Can anybody help.
Regards
Heinrich





RE: Water absorption properties of phenolic laminates.
We may have some literature on phenolic laminates that would help. These things are never exactly on point, but provide useful background. Contact me privately and I'll see if we can email something to you. r.doherty@fsengineer.com
Regards
Rick Doherty, PE
RE: Water absorption properties of phenolic laminates.
RE: Water absorption properties of phenolic laminates.
A good sealant and correct application was always the key to a good moisture barrier.
Almost all the buildings I worked on then are still functioning perfectly today and some were in extreme environments. Do a good job on the seal and moisture will be the least of your worries.
Cheers
Kerry
RE: Water absorption properties of phenolic laminates.
Phenolic resin is one of the most insoluble substances on the planet.
RE: Water absorption properties of phenolic laminates.