RTM processing of high performance composites

摘要

Resin transfer moulding (RTM) has a high potential for the cost effective manufacture of net-shaped structures of continuous fibre reinforced polymer composites. The future application in primary structures requires the reliable processing of resins which polycondense during curing,resulting typically in a high release of gaseous products. The basic approach of the paper was directed towards the development of a technique applying a condensation-like polymer and fibre preforms of carbon, ceramic and quartz fibres with high fibre volume contents of 50 to 65 percent, resulting in void-free composites which are competitive to autoclave processed parts. A RTM process has been established which allows the infiltration of fabrics of nearly any shape and contour. Processing details as well as mechanical properties which have been evaluated at temperatures up to 300 deg C are described.