Composite manufacture is an increasingly widely used technology. Use of composites reduces carbon emissions through lighter products. Modern aircraft have as much as 50% composite content significantly reducing carbon emissions. Wind energy systems use composite blades which are cheaper and lighter to manufacture than an equivalent metallic structure. Boat hulls may be manufactured in one piece. Vacuum bagging technologies have become the preferred method for Out of Autoclave, High grade Composite manufacture.
Porelle GPRI Membrane – Composite Processing Technology
Porelle GPRI (Gas Permeable Resin Impermeable) Membrane is used to form part of the membrane stack in Vacuum Bagging composite processing. Vacuum is transmitted uniformly to the entire area of the fibre, and vacuum is maintained until the curing process is complete. The universal vacuum field ensures excellent fibre compaction, and resin wastage is reduced to almost zero as the bleeder layer is no longer required. The vacuum system is not exposed to liquid resin. The efficient vacuum dispersion minimises void volume
Applications
Its unique combination of properties make Porelle GPRI Membrane ideal for use in Vacuum Composite Processing Technology. Elongation of 250%, 180°C temperature resistance allow its use in a range of composite processing technologies.
EADS GmbH holds European patent EP 1 181 149 B1 along with equivalents in other countries for the VAP infusion process. Ends users that intend using Porelle GPRI Membranes for the patented VAP process must consult EADS Deutschland GmbH or its authorised licensee Trans-Textil GmbH prior to the use of the VAP process in order to avoid potential patent infringement. VAP licence contact information is available at www.vap-info.com/en/contact.html'.