Aerospace Qualified Prepreg Materials

PF 801

PHENOLIC PREPREG CO-CURABLE WITH EPOXY
  • Self-adhesive resin system for sandwich panel application
  • Formaldehyde free resin formulation
  • Excellent FST behaviour
  • Long shelf and shop life
  • Co-curing with epoxy resin EP 121 to achieve outstanding mechanical properties combined with low FST properties

Introduction

PF 801 phenolic prepreg resin has been developed for the realisation of epoxy co-cured composite structures. In a one-step co-curing process, PF 801 can be cured excellently with the epoxy resin EP 121. Because of the chemical cross-linking, which occurs between the phenolic and the epoxy molecules during the curing step, a strong bonding takes place at the interface of both thermosetting matrix system.

As a result, high flame-retardancy and excellent FST behaviour of the phenolic resin PF 801 and the outstanding mechanical properties of the epoxy resin EP 121 are combined to meet the highest requirements of structural interior applications as such as the passenger floor. This prepreg is used as a top layer to avoid electro-galvanic corrosion of carbon structure with aluminium and improve overall impact behaviour of the passenger floor panels.

The co-curing can be performed at a temperature range between 130ºC (266ºF) and 150ºC (302ºF) using a press and autoclave moulding with a pressure of at least 0.7 bar / 10 psi.

Such composite structures can be exposed easily to temperatures in the range of -55ºC (-67ºF) up to +90ºC (194ºF). The prepreg material is suitable for monolithic and sandwich structures:

Applications

  • Aviation and aerospace industries
  • Machine industries
  • Marine and automotive applications